Mathematical models and algorithms for allocating scarce airport resources (OR-MASTER)
Lead Research Organisation:
Lancaster University
Department Name: Management Science
Abstract
Congestion at major airports in the UK and across Europe and the rest of the world is a serious and growing problem. Already Heathrow faces problems occasioned by serious congestion for a major part of the day while at Gatwick demand is expected to exceed capacity for 17 hours per day by 2025. According to a Eurocontrol study, planned capacity at the 138 Eurocontrol Statistical Reference Area (ESRA) airports is expected to increase by 41% in total by 2030, with demand exceeding airport capacity by as much as 2.3 million flights (or 11%) in the most-likely forecast growth scenario.
The development and deployment of airport capacity is a major societal issue engendering intense public debate in the UK and around the world.
Capacity at congested airports is expressed in slots. A slot identifies a time interval on a specific date during which a carrier is permitted to use the airport infrastructure for landing or take-off. Current slot allocation procedures suffer (inter alia) from the following limitations:
1)Simplistic modelling of the objectives and operational/regulatory constraints bearing on the multiple stakeholders involved in (and affected by) the slot allocation process.
2)Insufficient capture of the interactions encountered in airport networks.
3)The use of empirical or ad hoc processes for determining (rather than computing) declared capacity which address neither the uncertainties involved in airport capacity assessment nor the complexity and size of the real-world problem, even at the single-airport level.
Consequently, existing approaches to the allocation of airport capacity fail in a number of critical ways to reflect the complexities presented by the real world. This creates allocation inefficiencies which, in turn, result in poor airport capacity utilisation with significant negative impacts on airport revenues, airline operating costs, the level of service offered to passengers and the environment.
There is thus a pressing need to meet the major scientific challenge of developing novel mathematical models and solution approaches to transform the airport slot allocation process and its associated outcomes. The programme grant aims to do just that for a single airport and for a network of airports. Mathematical models will be developed and analysed which consider the objectives and requirements of all stakeholders and which take account of a wide range of operational and regulatory constraints. The intrinsic complexity of the proposed programme and its large scale (especially for the case of the network-wide slot allocation) will mean that it will provide an excellent test-bed for the development of new heuristics and hyper heuristics for large scale complex scheduling problems more widely. Algorithms that will be developed and tested by this project will provide essential support for the complex large scale capacity allocation problems that arise in other types of transportation networks, including rail networks. In addition, it could extend to other types of networks that share similar problem structures, such as those in energy and telecommunications.
The models and solution techniques developed will underpin the development of novel decision support systems which have the potential to make a major impact on airport operations. The research team has an internationally leading profile in the areas of mathematical modelling, heuristic development, stochastic optimization, airport slot allocation, airport management and performance assessment. It has an excellent track record of research cooperation with all categories of stakeholders. It will cooperate closely with an impressive array of leading industry stakeholders in order to make sure that the work is as cutting edge industrially as it is scientifically.
The development and deployment of airport capacity is a major societal issue engendering intense public debate in the UK and around the world.
Capacity at congested airports is expressed in slots. A slot identifies a time interval on a specific date during which a carrier is permitted to use the airport infrastructure for landing or take-off. Current slot allocation procedures suffer (inter alia) from the following limitations:
1)Simplistic modelling of the objectives and operational/regulatory constraints bearing on the multiple stakeholders involved in (and affected by) the slot allocation process.
2)Insufficient capture of the interactions encountered in airport networks.
3)The use of empirical or ad hoc processes for determining (rather than computing) declared capacity which address neither the uncertainties involved in airport capacity assessment nor the complexity and size of the real-world problem, even at the single-airport level.
Consequently, existing approaches to the allocation of airport capacity fail in a number of critical ways to reflect the complexities presented by the real world. This creates allocation inefficiencies which, in turn, result in poor airport capacity utilisation with significant negative impacts on airport revenues, airline operating costs, the level of service offered to passengers and the environment.
There is thus a pressing need to meet the major scientific challenge of developing novel mathematical models and solution approaches to transform the airport slot allocation process and its associated outcomes. The programme grant aims to do just that for a single airport and for a network of airports. Mathematical models will be developed and analysed which consider the objectives and requirements of all stakeholders and which take account of a wide range of operational and regulatory constraints. The intrinsic complexity of the proposed programme and its large scale (especially for the case of the network-wide slot allocation) will mean that it will provide an excellent test-bed for the development of new heuristics and hyper heuristics for large scale complex scheduling problems more widely. Algorithms that will be developed and tested by this project will provide essential support for the complex large scale capacity allocation problems that arise in other types of transportation networks, including rail networks. In addition, it could extend to other types of networks that share similar problem structures, such as those in energy and telecommunications.
The models and solution techniques developed will underpin the development of novel decision support systems which have the potential to make a major impact on airport operations. The research team has an internationally leading profile in the areas of mathematical modelling, heuristic development, stochastic optimization, airport slot allocation, airport management and performance assessment. It has an excellent track record of research cooperation with all categories of stakeholders. It will cooperate closely with an impressive array of leading industry stakeholders in order to make sure that the work is as cutting edge industrially as it is scientifically.
Planned Impact
This proposal is addressing an issue of great societal and scientific concern. It will have significant impact on i) the air transport industry, ii) policy makers and government, iii) associated scientific communities, iv) research training and v) the general public.
In what follows, we provide an overview of some of the key potential impacts of the proposed research programme on each of these stake-holding groups.
(i) Air Transport Industry: The optimization of slot allocation will bring major benefit to airports, the airline industry, and providers of air traffic and ground handling services. All of these industry sectors will benefit from the improved utilization of airport capacity which will result from improved slot allocation. The models and algorithms that will be developed will help air transport industry decision makers to reduce delays, increase schedule reliability, decrease operating costs, and increase revenues.
(ii) Policy Makers and Government: The results of the proposed programme will support decision makers to manage efficiently the available airport infrastructure and to improve the allocation of financial and other resources for developing additional capacity. The proposed programme will thus impact on issues of airport capacity management and development which are of central importance to the UK Government and across Europe.
(iii) Associated Scientific Communities: The proposed programme will have significant impact on the advancement of knowledge in a field that cuts across several scientific communities including operations research, mathematics, management science, computer science, air transport and engineering. It addresses challenges that lie at the interfaces of these fields. This programme will contribute substantially to our mathematical understanding of the modelling of complex large scale systems. It will also contribute to the development and theoretical understanding of innovative adaptive search methods for solving scheduling problems under uncertainty.
(iv) Research Training: This Programme Grant will provide a unique and valuable research training environment for our research associates and PhD students. They will have the opportunity to engage closely with international research centres and air transport industry organizations through short term visits and secondments. This international exchange and industrial exposure will underpin their inter-disciplinary research training experience.
(v) General Public: This programme has the potential to generate significant social, economic, and environmental impact. The development of models and systems for improved airport capacity management will substantially decrease congestion and reduce delays for the travelling public. Further, airport congestion generates a negative impact on air pollution, aircraft noise and safety, while delays cause significant economic damage. For example, related studies in the USA have estimated that the total economic impact of air transportation delays on the US economy for 2007 was $28.9 billion.
In what follows, we provide an overview of some of the key potential impacts of the proposed research programme on each of these stake-holding groups.
(i) Air Transport Industry: The optimization of slot allocation will bring major benefit to airports, the airline industry, and providers of air traffic and ground handling services. All of these industry sectors will benefit from the improved utilization of airport capacity which will result from improved slot allocation. The models and algorithms that will be developed will help air transport industry decision makers to reduce delays, increase schedule reliability, decrease operating costs, and increase revenues.
(ii) Policy Makers and Government: The results of the proposed programme will support decision makers to manage efficiently the available airport infrastructure and to improve the allocation of financial and other resources for developing additional capacity. The proposed programme will thus impact on issues of airport capacity management and development which are of central importance to the UK Government and across Europe.
(iii) Associated Scientific Communities: The proposed programme will have significant impact on the advancement of knowledge in a field that cuts across several scientific communities including operations research, mathematics, management science, computer science, air transport and engineering. It addresses challenges that lie at the interfaces of these fields. This programme will contribute substantially to our mathematical understanding of the modelling of complex large scale systems. It will also contribute to the development and theoretical understanding of innovative adaptive search methods for solving scheduling problems under uncertainty.
(iv) Research Training: This Programme Grant will provide a unique and valuable research training environment for our research associates and PhD students. They will have the opportunity to engage closely with international research centres and air transport industry organizations through short term visits and secondments. This international exchange and industrial exposure will underpin their inter-disciplinary research training experience.
(v) General Public: This programme has the potential to generate significant social, economic, and environmental impact. The development of models and systems for improved airport capacity management will substantially decrease congestion and reduce delays for the travelling public. Further, airport congestion generates a negative impact on air pollution, aircraft noise and safety, while delays cause significant economic damage. For example, related studies in the USA have estimated that the total economic impact of air transportation delays on the US economy for 2007 was $28.9 billion.
Organisations
- Lancaster University (Lead Research Organisation)
- Beihang University (Collaboration)
- Heathrow Airport Holdings (Collaboration)
- Hellenic Slot Coordination Authority (Collaboration)
- Massachusetts Institute of Technology (Collaboration, Project Partner)
- International Air Transport Association (Collaboration)
- European Organisation for the Safety of Air Navigation (Eurocontrol) (Collaboration)
- Goldair Handling (Collaboration, Project Partner)
- Air France KLM (Collaboration)
- National Air Traffic Services Limited (Collaboration)
- MANCHESTER AIRPORT PLC (Collaboration)
- HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY (Collaboration)
- Gatwick Airport Limited (Collaboration)
- Athens International Airport (Collaboration, Project Partner)
- Sistemi Innovativi per Il Controllo del Traffico Aereo (Project Partner)
- Northrop Grumman Park Air Systems (Project Partner)
- Airport Services Association (Project Partner)
- Airports Council International Europe (Project Partner)
- NEXTOR-II Consortium (Project Partner)
- Zürich Airport (Switzerland) (Project Partner)
- German Aerospace Center (Project Partner)
- Eurocontrol (Project Partner)
- CRIDA A.I.E (Project Partner)
- National Air Traffic Services (United Kingdom) (Project Partner)
- HALA SESAR Research Network (Project Partner)
- SESAR (Project Partner)
- Air France KLM (France) (Project Partner)
Publications
Benlic U
(2018)
Heuristic search for allocation of slots at network level
in Transportation Research Part C: Emerging Technologies
David Torres Sanchez
(2020)
Optimising airline maintenance scheduling decisions
De Lemos F
(2021)
Calculating block time and consumed fuel for an aircraft model
in The Aeronautical Journal
Drake J
(2020)
Recent advances in selection hyper-heuristics
in European Journal of Operational Research
Fairbrother J
(2020)
A Slot-Scheduling Mechanism at Congested Airports that Incorporates Efficiency, Fairness, and Airline Preferences
in Transportation Science
Fairbrother J
(2021)
Optimal scheduling of slots with season segmentation
in European Journal of Operational Research
Fairbrother J
(2018)
Introducing flexibility and demand-based fairness in slot scheduling decisions
Fotios A. Katsigiannis
(2022)
Multi-Objective Airport Slot Scheduling Incorporating Operational Delays and Multi-Stakeholder Preferences
Fotios A. Katsigiannis
(2022)
Modelling and Solving the Single-Airport Slot Allocation Problem
| Description | Through the interaction with industry stakeholders, the review of the airport slot allocation policy and regulations and the related academic literature, we have identified major literature and practice gaps that allowed the specification of the characteristics that might be incorporated in new airport slot scheduling models. Consequently, our research has led to the development of models and algorithms that have produced the following key findings: A. Introduction of fairness in airport slot scheduling decisions through the: A.1. Investigation of alternative fairness measures that can be incorporated in airport slot allocation models. A.2. Introduction of a methodological framework for selecting the most preferable acceptable airport schedule from a set of schedules that consider efficiency-fairness trade-offs for alternative fairness measures. A.3. Development of bi-objective and tri-objective airport slot allocation models that consider simultaneously fairness and efficiency measures (total/maximum displacement). The models were solved using the e-constraint method and a new tri-objective adaptation of the method. A.4. Development of a demand-based fairness measure and a slot allocation mechanism that allow airlines to express their preferences regarding slot schedule displacement. B. Introduction of models and algorithms that consider simultaneously multiple objectives through: B.1. A bi-objective and tri-objective models that consider the trade-offs between fairness and schedule efficiency and acceptability metrics. B.2. Multi-objective models that consider total, maximum displacement, displaced/rejected requests/passengers. B.3. Multi-level solution approaches for investigating trade-offs between alternative slot allocation objectives across all levels of the slot hierarchy. B.4. A multi-objective solution framework that i) considers operational delays in strategic airport slot allocation decisions; and ii) models multi-stakeholder preferences to select preferable airport slot schedules. The solution framework has been solved using the Quadrant Shrinking Method. C. Development of heuristics for scheduling slots at a network level and a single airport. D. Investigation of the impact of alternative policy considerations through: D.1. Studying the impact of flexibility (the effect of modifying the definition of the series of slots on improving the airport schedule efficiency) in allocating a series of slots. D.2. Investigating the effect of schedule segmentation, i.e., the consideration of slot scheduling sub-periods within the slot scheduling season, on improving the efficiency of the slot allocation outcome through the avoidance of blocking, while also preserving slot schedule regularity. D.3. Proposing a modelling and solution framework that considers airlines' flexibility preferences and its seamless integration with constraints that enable the dynamic allocation of the airport's resources. D.4. Models and analyses relating to recent policy changes as introduced by the new World Airport Slot Guidelines (WASG, 2020) and proposed policy amendments that improved airport slot scheduling efficiency. E. Development of time-efficient methods for minimizing operational delays at overly congested airports. F. Development of a single airport slot allocation model that considers airlines' preferences and coordinators' slot prioritization. G. Development of network-level slot scheduling models that incorporate the importance of individual airports in the functioning of the air-transport network and adjust initial slot allocations of individual airports to ensure network -wide flight connectivity while optimizing efficiency and fairness objectives. We have developed multi-objective slot allocation models that can be used to examine trade-offs among the various slot allocation performance criteria, and to facilitate the selection of a commonly agreed slot allocation outcome. The proposed models contribute to the development of a collaborative, fair, and transparent decision making process. Thus, the results we have generated to date have the potential to improve policymaking and practice in airport slot scheduling and capacity management. We have participated actively in international scientific fora (2016 TRISTAN Symposium, 96th Annual Transportation Board Meeting, 97th Annual Transportation Research Board Meeting, INFORMS Annual Meeting (2017, 2018, 2021), Institute of Mathematics and Its Applications and Operational Research Society Meeting (2017, 2019, 2021), European Conference on Stochastic Optimization (2017), 31st European Conference of Operational Research (EURO 2021), OR60 (2018), OR63 (2021), OR64 (2022) Annual Conference, Odysseus 2018 International Workshop, Odysseus 2022 International Workshop, 2019 TRISTAN Symposium, and 2022 TRISTAN Symposium. We have made 48 presentations, 3 posters, and we have organized 6 conference sessions and one conference stream. We have also published 20 papers in peer-reviewed journals and 10 papers/short papers/ extended abstracts in conference proceedings. We have participated in international policy fora with worldwide impact OECD/ITF round tables, and we have interacted with key stakeholders, (Airports Council International-ACI, International Air Transport Association-IATA, Airlines, Ground Handling agents, NATS, and slot coordination authorities, and Airports including Athens International Airport, Manchester International Airport, Gatwick, Heathrow, Stanstead, and Birmingham International Airport. We have provided input to the consultation of the Department for Transport for the reform of the slot allocation system. We have raised public awareness regarding the role of mathematical modelling in solving airport capacity and delay problems. We have attracted additional resources and we have increased our research activity and cooperation (OptiFrame HORIZON 2020 project, Rolls Royce PhD. Studentships, EPSRC Fellowship, EPSRC Post-Doctoral Fellowship, ERASMUS traineeship, Lancaster University Management School and QMUL PhD studentships, Beihang University, Huazhang University, visiting researchers). We have stimulated research interest and developed significant research capability in the area of aviation Operational Research. 4 Post Doctoral Research Associates of the OR-MASTER project have been appointed to academic positions, while an OR-MASTER doctoral student received an EPSRC-funded postdoctoral fellowship. Early career researchers of the OR-MASTER have been distinguished in international scientific fora (INFORMS) and received best dissertation awards and honourable mentions. Furthermore, we have enhanced the skills of early career researchers (Post-Doctoral Research Associates and postgraduate students) through the organization of OR-MASTER related seminars (organised within the framework of the Centre for Transport and Logistics seminars), through peer to peer knowledge transfer and mentoring, and through our interaction with the STOR-i CDT, and seminars organized by the Centre for Transport and Logistics. We have been invited to contribute to the broader research agenda regarding slot allocation optimization worldwide, e.g., ASAP project Portugal, Singapore University of Technology and Design (SUTD) Aviation Studies Institute). |
| Exploitation Route | Work underway includes: 1) Further enhancements and improvements to the single airport slot scheduling problem through the development of a multi-objective optimization framework that jointly considers slot allocation efficiency, fairness, flexibility, and schedule segmentation; 2) Development of heuristic algorithms for solving large scale slot scheduling problems at a single airport and at the network level; 3) Development of synergetic machine learning - optimization approaches, 4) development of robust optimization models and solution algorithms for solving the single airport slot allocation problem, 5) development of a mechanism for secondary slot trading, 6) development of an extension of the slot allocation model that can be used for the train timetabling problem. |
| Sectors | Aerospace Defence and Marine Transport |
| URL | https://www.lancaster.ac.uk/lums/research/areas-of-expertise/centre-for-transport-and-logistics/projects/or-master/ |
| Description | Impact is a continuous process and it is expected to be demonstrated throughout the project's life cycle and beyond. We have engaged with relevant stakeholders and we have raised their awareness regarding the potential impact of our results on their operations and on policy development. The presentation titled: 'Slot Allocation: Alternatives, Strengths, and Weaknesses' given by Konstantinos G. Zografos (2015) at Mexico City's New Airport: International Conference on Aviation and Airport Services Reforms for the Next Generation, contributed to the public debate regarding the slot allocation and management issues associated with the development of the new Mexico City International Airport. The Presidential Address to the Mathematics Section of the British Science Association, entitled "Advanced Airports and On-Time Ambulances" given by Kevin Glazebrook at the 2015 British Science Festival, Bradford University, and the BBC Radio 4 interview of Konstantinos G. Zografos aimed to raise the awareness of the public regarding the contribution of operational research in solving real-world problems like the airport capacity management. The OR-MASTER project findings reported in the paper titled "On the Development of a Fair and Efficient Slot Scheduling Mechanism at Congested Airports" (2017), have significant potential to influence airport slot allocation and capacity management internationally. This is due to the fact that the Transportation Research Board has characterized this paper as a practice-ready paper. The findings reported in the paper titled "Increasing airport capacity utilization through optimum slot scheduling: review of current developments and identification of future needs" (2017), were used at the OECD /ITF Round table on "Capacity Building through Efficient Use of Existing Airport Infrastructure", this paper was also cited in the OECD/ITF Discussion Paper titled "Capacity Building through the Efficient Use of Existing Airport Infrastructure." The OR-MASTER contribution to the OECD/ITF round table discussion and the associated discussion paper have the potential to: i) influence the regulatory environment and policy decisions regarding slot allocation and capacity management at congested airports internationally; ii) produce significant economic benefits; and (iii) provide effective solutions to societal problems. The OR-MASTER project results reported in the papers: 1) " A slot scheduling mechanism at congested airports which incorporates efficiency, fairness and airline preferences" (published in Transportation Science), 2) "Increasing airport capacity utilization through optimum slot scheduling: a review of current developments and identification of future needs", have been cited in the report titled "A Review of Certain Aspects of the Slot Allocation Process at Level 3 Airports Under Regulation 95/93." This report was commissioned by Airports Council International (ACI) EUROPE and was authored by Prof Odoni. The results of the OR-MASTER project and their implications on policy and practice have been communicated to the academic community and national and international key-stakeholders, involved in and affected by slot allocation decisions. We have contributed to the consultation of the Department for Transport (DfT) regarding the reform of the slot allocation system in UK, and we have proposed a roadmap for the reform of the slot allocation system. Our findings can be used by: 1) policymakers in the aviation sector to inform slot scheduling policy changes; and 2) airport slot coordination stakeholders, such as, slot coordinators, airport authorities, airport slot coordination committees, and airlines, in making slot scheduling decisions. The results of our research allow the examination and quantification of the trade-off among multiple objectives of interest (efficiency, fairness, operational delays, schedule regularity) and provide enhanced support to decision-makers in making slot allocation decisions. Through our publications, presentations, and active participation and interaction with key stakeholders at national and international level, we have contributed to the ongoing slot allocation policy debate regarding the reform of the slot allocation system in UK, and the review of the EU Regulation 95/93 on Slot Allocation at Level 3 coordinated airports. In conclusion, the OR-MASTER results have the potential to contribute to the introduction of policy and practice changes that will have a worldwide impact on the way that airport capacity is managed and scarce airport resources (slots) are allocated to airport users (airlines). Potential benefits include better utilization of existing airport capacity, (economic benefit), the enhancement of the competition, and the improved level of service for the traveling public (societal benefit and economic benefit). |
| First Year Of Impact | 2024 |
| Sector | Aerospace, Defence and Marine,Transport |
| Impact Types | Societal Economic Policy & public services |
| Description | Citation in 'A REVIEW OF CERTAIN ASPECTS OF THE SLOT ALLOCATION PROCESS AT LEVEL 3 AIRPORTS UNDER REGULATION 95/93' |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Citation in other policy documents |
| Impact | Potential policy changes will have a world-wide impact on the way that airport capacity is managed and scarce airport resources (slots) are allocated to airport users. Potential benefits of this policy change include better utilization of existing airport capacity, improved level of service for the traveling public. |
| URL | https://www.aci-europe.org/policy/position-papers.html?view=group&group=1&id=1 |
| Description | Citation in 'A REVIEW OF CERTAIN ASPECTS OF THE SLOT ALLOCATION PROCESS AT LEVEL 3 AIRPORTS UNDER REGULATION 95/93' |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Citation in other policy documents |
| Impact | Potential policy changes will have a world-wide impact on the way that airport capacity is managed and scarce airport resources (slots) are allocated to airport users. Potential benefits of this policy change include better utilization of existing airport capacity, improved level of service for the traveling public. |
| URL | https://www.aci-europe.org/policy/position-papers.html?view=group&group=1&id=1 |
| Description | Contribution to policy formulation- Department of Transport Consultation |
| Geographic Reach | National |
| Policy Influence Type | Contribution to a national consultation/review |
| Description | Contribution to policy formulation- Office of the Shadow Minister for Aviation and Maritime Transport |
| Geographic Reach | National |
| Policy Influence Type | Implementation circular/rapid advice/letter to e.g. Ministry of Health |
| Description | Input for the identification of areas of change. Horizon Scan of The Parliamentary Office of Science and Technology (POST) |
| Geographic Reach | National |
| Policy Influence Type | Contribution to a national consultation/review |
| Description | OECD - ITF Roundtable on "Capacity Building through Efficient Use of Existing Airport Infrastructure" |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Citation in other policy documents |
| Impact | Potential policy changes they will have a world-wide impact on the way that airport capacity is manged and scarce airport resources (slots) are allocated to airport users. Potential benefits of this policy change include better utilization of existing airport capacity, improved level of service for the travelling public, and economic benefits for the airlines, travelers, and airports. |
| URL | https://www.itf-oecd.org/sites/default/files/docs/capacity-building-efficient-use-existing-airport-i... |
| Description | On the Development of a Fair and Efficient Slot Scheduling Mechanism at Congested Airports. This paper which was presented at the 97th , 2018 Annual TRB Meeting was characterized after peer review as a practice ready paper. According to TRB (a branch of the US Academy of Sciences.Engineering.Medicine) a paper is characterized as practice ready if: The paper must be recommended for presentation at the Annual Meeting. (Publication in the Transportation Research Record is not a requirement.) The research results presented and discussed in the paper should be ready for immediate implementation or with minimal additional research or implementation effort. The paper should contain guidance on additional effort required for implementation. The research should make a major contribution to the solution of current or future problems or issues. |
| Geographic Reach | Multiple continents/international |
| Policy Influence Type | Influenced training of practitioners or researchers |
| Impact | Potential practice changes will have a world-wide impact on the way that airport capacity is manged and scarce airport resources (slots) are allocated to airport users. Potential benefits of this policy change include better utilization of existing airport capacity, improved level of service for the travelling public, and economic benefits for the airlines, travelers, and airports. |
| URL | http://www.trb.org/Publications/PubsPracticeReadyPapersBackground.aspx |
| Description | An Optimization Framework for Trajectory Based Operations (OPTI-FRAME) |
| Amount | € 727,501 (EUR) |
| Funding ID | 669275 |
| Organisation | European Commission |
| Department | Horizon 2020 |
| Sector | Public |
| Country | European Union (EU) |
| Start | 03/2016 |
| End | 02/2018 |
| Description | EPSRC Fellowship |
| Amount | £264,933 (GBP) |
| Funding ID | EP/P003060/1 |
| Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
| Sector | Public |
| Country | United Kingdom |
| Start | 03/2017 |
| End | 03/2020 |
| Description | Maths Research Associates 2021 Lancaster |
| Amount | £500,000 (GBP) |
| Funding ID | EP/W522612/1 |
| Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
| Sector | Public |
| Country | United Kingdom |
| Start | 03/2021 |
| End | 12/2023 |
| Description | PhD studentships |
| Amount | £330,000 (GBP) |
| Organisation | Lancaster University |
| Sector | Academic/University |
| Country | United Kingdom |
| Start | 09/2017 |
| End | 09/2023 |
| Description | Rolls Royce Funding - Symbiotic Simulation in an Airline Operations Environment |
| Amount | £30,000 (GBP) |
| Organisation | Rolls Royce Group Plc |
| Sector | Private |
| Country | United Kingdom |
| Start | 09/2016 |
| End | 10/2019 |
| Description | Rolls Royce funding - Optimising Aircraft Engine Maintenance Scheduling Decisions |
| Amount | £30,000 (GBP) |
| Organisation | Rolls Royce Group Plc |
| Sector | Private |
| Country | United Kingdom |
| Start | 09/2016 |
| End | 10/2019 |
| Title | A Decision Making Framework for Incorporating Fairness in Allocating Slots at Capacity-Constrained Airports |
| Description | Three fairness objectives for slot scheduling at capacity-constrained airports are proposed. The three objectives are integrated into a bi-objective modelling framework, which is solved by the e-constraint method using a hierarchical solution procedure. A decision-making framework to assist decision-makers to identify the most preferable acceptable slot allocation outcome is also introduced. The proposed framework is based on a voting mechanism which incorporates the preferences of the stakeholders. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2021 |
| Provided To Others? | Yes |
| Impact | The proposed framework identifies the most preferable acceptable slot allocation outcome. The proposed decision-making framework is based on a voting mechanism which incorporates stakeholders' preferences. The proposed model can help stakeholders involved in the airport slot scheduling process to select the most preferable airport schedule among a set of schedules that consider trade-offs between efficiency and alternative fairness objectives. |
| URL | https://doi.org/10.1016/j.trc.2021.103039 |
| Title | A Mathematical Model for the adjustments of Network-wide Initial Airport Slot Allocations with connectivity and fairness objectives |
| Description | Bi-objective mathematical models are proposed for the adjustments of initial slot allocations in a network level, while considering efficiency, inter-airline fairness objectives and connectivity. The proposed models are solved using CPLEX 12.10 solver. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2023 |
| Provided To Others? | Yes |
| Impact | The proposed models can provide optimal network-wide adjustments to initial slot allocations while considering efficiency, inter-airline fairness objectives and connectivity. The proposed models also incorporate the importance of different airports to the network functioning using the IATA connectivity indices and the betweenness centrality measures. |
| URL | https://www.sciencedirect.com/science/article/pii/S0191261523001261?via%3Dihub |
| Title | A Mathematical Model for the slot valuation in airports scheduling decisions |
| Description | A multi-objective Mixer Integer Programming (MIP) model is proposed along with a preference-based algorithm for producing request-to-slot assignments, while considering airlines preferences and coordinators prioritisation. The proposed model was built and solved in Python programming language through GUROBI solver. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2022 |
| Provided To Others? | Yes |
| Impact | The proposed preference-based algorithm considers airlines' demand and scheduling efficiency. The proposed MIP models the value of requests and slots from both the airlines and the coordinators perspective. Specifically, It develops valuation functions for the airlines' requests and the slot prioritisation considered by coordinators. The proposed approach leads to schedules that achieve equilibria between airlines' slot preferences and coordinators' slot prioritisation. |
| URL | https://www.sciencedirect.com/science/article/pii/S0377221722008657?via%3Dihub |
| Title | A Simheuristic Approach for a stochastic, dynamic runway scheduling problem |
| Description | A stochastic, dynamic single-runway scheduling problem, and a simheuristic approach. The programs are implemented using Python programming language. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2023 |
| Provided To Others? | Yes |
| Impact | The proposed simheuristic approach is based on methods analogous to neighbourhood search in a high-dimensional stochastic environment. The proposed approach outperforms a deterministic forecast-based alternative under a range of parameters. |
| URL | https://pubsonline.informs.org/doi/epdf/10.1287/trsc.2022.0400 |
| Title | A model considering airlines' timing flexibility and the dynamic allocation of airport capacity |
| Description | This model considers airlines' flexibility preferences and its seamless integration with constraints that enable the dynamic allocation of the airport's resources. We have tested our model on using data from a coordinated airport. Our analyses suggests that the joint consideration of the TFI and the endogenous and dynamic capacity constraints, improves airport capacity utilisation, thus leading to improved airport slot schedules with reduced total and maximum displacement and significant improvements in terms of displaced slot requests and passengers. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2021 |
| Provided To Others? | Yes |
| Impact | Our results illustrate that the joint impact of the timing flexibility and the dynamic capacity allocation considerations improve airport capacity utilisation and airport slot allocations by simultaneously reducing all schedule quality metrics previously considered in the literature (improvements ranging between 5.5% and 24%). Furthermore, we demonstrate that the consideration of the dynamic capacity allocation requirements of the airport results in improvements for all schedule quality metrics without requiring additional infrastructure investments. Our approach enables to study the trade-offs amongst requests of different slot priorities submitted by the same airline, provides insights that inform the airlines on the impact of their disclosed flexibility and support slot coordinators in making alternative slot suggestions. The proposed framework can hence provide improved airport capacity utilisation and more efficient and acceptable slot allocations, which adhere to the operational needs of the airlines operating at the airport. Its value becomes more prominent in regional slot coordinated airports with limited infrastructure as it improves their ability to accommodate additional flights and passengers, hence improving their connectivity potential. |
| URL | https://doi.org/10.1016/j.trb.2021.02.002 |
| Title | A model for scheduling slots with season segmentation |
| Description | The model allows the scheduling of request series with flexibility while at the same time maintaining the desired level of schedule regularity. By flexibility we mean relaxing the requirement of allocating series of slots for the entire scheduling season, and allowing this could have the effect of reducing the issue of blocking and thus the overall displacement. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2020 |
| Provided To Others? | Yes |
| Impact | The model was tested under hierarchical and holistic slot allocation policies using real slot request data from a congested airport. We compare the two strategies in terms of their effect on slot scheduling efficiency and schedule regularity, and we provide slot allocation policy recommendations. The results of the proposed model shed light on two import slot scheduling decisions currently under debate, namely: i) the definition of the series of slots, and ii) the trade-off between schedule consistency and schedule efficiency. These results can provide useful information for making evidence based policy decisions. |
| URL | https://doi.org/10.1016/j.ejor.2020.10.003 |
| Title | A multi-objective solution framework with multi-stakeholder and operational delay considerations |
| Description | The new ASA approach introduced in this paper addresses the above literature gaps by considering two important problem attributes previously untapped, namely the consideration of operational delays and the elicitation and integration of multi-stakeholder preferences in ASA decision-making. Our approach guarantees the generation of all non-dominated schedules and reduces decision-making complexity by selecting representative schedules. Each schedule is assessed based on the preferences of all pertinent stakeholder groups concerning both its operational and strategic performance. The proposed solution methodology is tested using empirical preference data that are obtained from experts coming from all stake-holding groups of the ASA process. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2022 |
| Provided To Others? | Yes |
| Impact | Computational results suggest that the proposed methodology may provide crucial decision-support and catalyse the determination of the most preferable airport slot scheduling solution (or solutions) and its implications on expected delays. Our approach results in schedules with maximum delays that are consistently below 26.5 minutes for all preference scenarios. |
| URL | https://www.sciencedirect.com/science/article/pii/S0968090X23001456?via%3Dihub |
| Title | A tool to generate synthetic instances of slot coordinated airport data |
| Description | Based on the dataset provided by a slot coordination authority, which contained requests submitted to 3 airports for a summer slot scheduling season, this tool allows synthetic problem instances with similar characteristics to the real-world datasets to be generated. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2022 |
| Provided To Others? | No |
| Impact | This tool allows for a much wider range of performance comparisons between different algorithms to be made, facilitating the possibility of "train-and-test" approaches (such as Machine Learning) to be applied to these datasets. |
| Title | Data for a New Simheuristic Approach for Stochastic Runway scheduling |
| Description | Data provision for the computational experiments of the following paper: Shone, R, Glazebrook, K & Zografos, KG 2023, 'A New Simheuristic Approach for Stochastic Runway Scheduling', Transportation Science. |
| Type Of Material | Database/Collection of data |
| Year Produced | 2023 |
| Provided To Others? | Yes |
| Impact | This dataset provides input for the computational experiments of a new Simheuristic for Stochastic Runway Scheduling. |
| URL | https://pubsonline.informs.org/doi/suppl/10.1287/trsc.2022.0400 |
| Title | Data from airport slot coordinated airports |
| Description | This dataset was provided by the a slot Coordination authority under a memorandum of confidentiality and data sharing. The database concerns requests submitted to 4 airports for a summer slot scheduling season. This dataset provides data describing requested slots by airline, 2) actual allocated slots to each airline at the initial allocation stage (pre-Conference, summer scheduling season), declared airport capacity. |
| Type Of Material | Database/Collection of data |
| Year Produced | 2019 |
| Provided To Others? | No |
| Impact | These may be used to run slot scheduling models that have the potential to influence the airport slot allocation/scheduling process. |
| Title | Data related to the paper "Optimal network-wide adjustments of initial airport slot allocations with connectivity and fairness objectives" |
| Description | This dataset includes: i) synthetic initial slot allocation and declared capacity data for Brazilian airports, ii) calculated IATA connectivity indices and betweenness centrality measures for Brazilian airports, and iii) description of how the data were generated. Description |
| Type Of Material | Database/Collection of data |
| Year Produced | 2023 |
| Provided To Others? | Yes |
| Impact | This dataset provides input for the computational experiments of the Optimal network-wide adjustments of initial airport slot allocations with connectivity and fairness objectives. |
| URL | http://www.research.lancs.ac.uk/portal/en/datasets/data-related-to--the-paper-optimal-networkwide-ad... |
| Title | Displacement budget mechanism |
| Description | Implementation of displacement budget mechanism which adjusts a reference schedule to better match airline preferences for which flights should and shouldn't be displaced. The mechanism works by allocating to each airline a displacement budget, which airlines must distribute among its requests according to its preferences on how these should be displaced. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2019 |
| Provided To Others? | Yes |
| Impact | The mechanism was tested using real data from a medium sized airport. This demonstrated that a significant number of the airlines' suggested schedule adjustments could be made, and that this was particularly beneficial when airlines are more sensitive to large displacements. |
| URL | https://doi.org/10.1287/trsc.2019.0926 |
| Title | Modelling and Solving the Airport Slot Scheduling Problem with Efficiency, Fairness, and Accessibility Considerations |
| Description | The objective of this paper is to develop and solve a new class of airport slot scheduling models that consider simultaneously slot scheduling and fairness objectives. A fairness metric is introduced which postulates that the displacement allocated to an airline should be proportional to the number of slots requested by it. Two biobjective formulations considering both fairness and efficiency are introduced. Both models are solved by the e-constraint method using a row generation algorithm. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2019 |
| Provided To Others? | Yes |
| Impact | The proposed model investigates the efficiency-fairness trade-off under the following two slot scheduling regimes: (i) a regime that considers historical slot usage rights (hierarchical), and (ii) a regime that does not consider historical slot usage rights (nonhierarchical).The proposed model generates the efficient frontiers describing the slot scheduling efficiency-fairness trade-off for both slot scheduling regimes. The results of the model are presented at the aggregate (airport-wide) and disaggregate (individual) airline level providing information that enhances the transparency of slot scheduling decisions. The efficient frontiers produced by the proposed model can facilitate discussions among different stakeholders in making slot scheduling decisions. |
| URL | https://doi.org/10.1016/j.trc.2019.01.023 |
| Title | Models for optimizing airport schedule displacement and acceptability |
| Description | Two bi-objective scheduling models considering different combinations of total and maximum acceptable slot displacement objectives have been proposed and solved. The first model considers the minimization of total schedule displacement and the minimization of the maximum slot displacement, while the second model considers the minimization of total displacement and the minimization of the missed allocations (i.e the slot allocations that exceed a maximum acceptable displacement value). |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2017 |
| Provided To Others? | Yes |
| Impact | The proposed models are applied to real-world scheduling data. Substantial improvements in schedule acceptability metrics are achieved without sacrificing a lot in terms of scheduling efficiency. Sacrifices in scheduling efficiency increase the capability of the airport coordinator to allocate slots that are eventually acceptable and hence more intensively used. |
| URL | http://dx.doi.org/10.1016/j.tra.2017.09.025 |
| Title | Optimising multi-level, multi-objective airport slot scheduling decisions |
| Description | This paper introduces a Tri-Objective Slot Allocation Model (TOSAM) with total displacement, maximum displacement, and demand-based fairness considerations. The model is solved via a multi-level solution algorithm that considers the overall performance of the airport slot schedule and can provide insights on the trade-offs among various metrics of interest. Results from a real-world airport suggest that multi-level considerations improve slot scheduling quality and provide additional airport slot schedules |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2021 |
| Provided To Others? | Yes |
| Impact | By considering the proposed multi-level solution approach, policy and decision makers can investigate the inherent trade-offs among the objectives of the slot scheduling priorities and unveil the elements that influence the schedule-wide performance of a slot scheduling solution. The improved slot scheduling performance and the multiple schedule-wide non-dominated solutions of our approach (resulting from the consideration of dominated or weakly-dominated solutions at the upper priority levels) enable the extraction of aggregate metrics that can help decision/policy-makers to understand the impact of multiple alternative slot schedules on the objectives of the different stakeholders, i.e. airlines, airport operators etc, and thus facilitate a more collaborative decision-making process. In addition, the interested parties may seamlessly explore the benefit of trading-off the allocations of different slot scheduling levels with respect to different slot scheduling metrics; and consider non-dominated schedules that improve the allocations of their own slot request portfolio or the allocations at the schedule-wide level. |
| URL | https://doi.org/10.1016/j.trc.2020.102914 |
| Title | Resource allocation in congested queueing systems with time-varying demand: An application to airport operations |
| Description | The objective of this paper is to develop approximate dynamic programming (ADP) methods for identifying optimal resource allocation policies in congested queueing systems. In an airport context, this can be interpreted as the allocation of runway capacity to competing sources of demand (departures and arrivals). |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2019 |
| Provided To Others? | Yes |
| Impact | The proposed models can assist airport controllers in responding dynamically to observed events and operating conditions in order to maximise the efficiency of their operations. |
| URL | https://doi.org/10.1016/j.ejor.2019.01.024 |
| Title | Slot allocation model with demand-based fairness |
| Description | Implementation of bi-objective scheduling model which uses demand-based fairness. |
| Type Of Material | Computer model/algorithm |
| Year Produced | 2019 |
| Provided To Others? | Yes |
| Impact | The proposed model was tested using real-world data from a medium sized airport. These demonstrated that this approach had better trade-off with schedule efficiency compared to the previous approach to fairness, and was also faster computationally. |
| URL | https://doi.org/10.1287/trsc.2019.0926 |
| Description | Athens International Airport |
| Organisation | Athens International Airport |
| Country | Greece |
| Sector | Academic/University |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organization provided useful input for the modelling of the slot scheduling and declared capacity problem. |
| Impact | We have received useful input from Athens International Airport regarding the airport slot scheduling problem. |
| Start Year | 2015 |
| Description | EUROCONTROL |
| Organisation | European Organisation for the Safety of Air Navigation (Eurocontrol) |
| Country | Belgium |
| Sector | Public |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organisation provided useful input for the modelling of the slot scheduling and declared capacity problem and the validation of the resulting mdels. |
| Impact | We have received useful input from EUROCONTROL regarding the modelling of the airport slot scheduling problem and the validation of the resulting models. |
| Start Year | 2016 |
| Description | Gatwick Airport |
| Organisation | Gatwick Airport Limited |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organisation provided useful input for the modelling of the slot scheduling and declared capacity problem. |
| Impact | We received useful input from Gatwick Airport regarding the airport slot scheduling problem. |
| Start Year | 2016 |
| Description | GoldairHandling |
| Organisation | Goldair Handling |
| Country | Greece |
| Sector | Private |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organization provided useful input for the modelling of the slot scheduling and declared capacity problem. |
| Impact | We have received useful input from GoldairHandling regarding the airport slot scheduling problem. |
| Start Year | 2015 |
| Description | Heathrow Airport |
| Organisation | Heathrow Airport Holdings |
| Department | London Heathrow Airport |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organisation provided useful input for the modelling of the slot scheduling and declared capacity problem. |
| Impact | We have received useful input from Heathrow airport regarding the airport slot scheduling problem. |
| Start Year | 2016 |
| Description | Hellenic Slot Coordination Authority (HSCA) |
| Organisation | Hellenic Slot Coordination Authority |
| Country | Greece |
| Sector | Private |
| PI Contribution | Collaboration with HSCA |
| Collaborator Contribution | A memorandum of understanding for cooperating with HSCA was signed. |
| Impact | A memorandum of understanding for cooperating with HSCA was signed. |
| Start Year | 2019 |
| Description | Huazhong University of Science and Technology |
| Organisation | Huazhong University of Science and Technology |
| Country | China |
| Sector | Academic/University |
| PI Contribution | At the moment, our collaboration with Huazhong University is not directly related to the main research theme of the OR-MASTER project (allocation of airport slots). However, we have been invited to visit their University in March 2017, to contribute to their project funded by a Chinese airline on Schedule design. |
| Collaborator Contribution | Until now, there has been no contribution of this partner to the OR-MASTER project. Contributions in the near future may include: recommendation of students funded by the CSC grant to work on the OR-MASTER project (2017/2018); joint application for future fundings (Global Challenge Research Fund). |
| Impact | ---- |
| Start Year | 2017 |
| Description | IATA |
| Organisation | International Air Transport Association |
| Country | Canada |
| Sector | Private |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organisation provided useful input for the modelling of the slot scheduling and declared capacity problem. |
| Impact | We have received useful input from IATA regarding the airport slot scheduling problem. |
| Start Year | 2016 |
| Description | KLM/AIR FRANCE |
| Organisation | Air France KLM |
| Country | France |
| Sector | Private |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organization provided useful input for the modelling of the slot scheduling and declared capacity problem. |
| Impact | We have received useful input from KLM/AIR FRANCE regarding the airport slot scheduling problem. |
| Start Year | 2015 |
| Description | MIT |
| Organisation | Massachusetts Institute of Technology |
| Country | United States |
| Sector | Academic/University |
| PI Contribution | Knowledge exchange relating to mathematical models and algorithms developped by the OR-MASTER team |
| Collaborator Contribution | MIT researchers provided useful feedback regarding the development of models and algorithms relating to the airport slot allocation (single airport, network of airports). |
| Impact | An MIT researcher is a member of the OR-MASTER advisory board. Another MIT researcher visited Lancaster university where he gave to presentations on issues relating to airport slot allocation. During his visit, he interacted with the OR-MASTER team, participating in various meetings. |
| Start Year | 2016 |
| Description | Manchester Airport Group |
| Organisation | Manchester Airport Plc |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organisation provided useful input for the modelling of the slot scheduling and declared capacity problem. |
| Impact | We received useful input from Manchester Airport regarding the airport slot scheduling problem. |
| Start Year | 2023 |
| Description | NATS |
| Organisation | National Air Traffic Services Limited |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | The OR-MASTER concept along with its potential impact in improving airport capacity management was presented to these stakeholders. These impacts will be societal (delay reduction), economic (better use of available airport capacity), and environmental (noise and air pollution). |
| Collaborator Contribution | The collaborating organisation provided useful input for the modelling of the slot scheduling and declared capacity problem. and the validation of the resulting models. A NATS expert visited Lancaster University for a two day visit (5-6th of March). During his visit the expert gave a talk titled 'The role of Air Traffic Control and the Application of OR techniques to Airport Optimisation'. In addition he participated in a series of meetings with the members of the OR-MASTER. |
| Impact | We have received useful input from NATS regarding the modelling of the airport slot scheduling problem and the validation of the resulting models. |
| Start Year | 2016 |
| Description | National Key Laboratory of CNS/ATM |
| Organisation | Beihang University |
| Country | China |
| Sector | Academic/University |
| PI Contribution | Signed an MOU with the Laboratory for future research collaboration in the area of Air Traffic Management. |
| Collaborator Contribution | Signed an MOU with the Laboratory for future research collaboration in the area of Air Traffic Management. |
| Impact | We are the early stages of the collaboration and there are no output yet. |
| Start Year | 2017 |
| Description | 17th Airline Marketing Workshop, Athens, Greece 2 March 2017 - Improving Airport Capacity Management through Collaborative Slot Scheduling |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | Professor Konstantinos G. Zografos (OR-MASTER PI) was an invited speaker at this event. The objective of his presentation was to inform industry/business (airlines, airports, ground handling service providers) about new airport slot allocation approaches proposed by the OR-MASTER project.The presentation was focused on how airport capacity can be better managed through collaborative slot scheduling. Issues related to the trade-off between fairness and efficiency in airport slot scheduling were discussed. Around 200 industry/business representatives became aware of the potential impact that OR-MASTER results may have on their operations. This is considered an activity of significant potential impact as it has raised the awareness of key stakeholders regarding the potential impact of the project results on their operations. Potential outcomes of this activity may include changes in airport slot allocation and capacity management decisions. |
| Year(s) Of Engagement Activity | 2017 |
| URL | http://www.aia.gr/company-and-business/press-and-Media/press-office/press-releases/17o-synedrio-mark... |
| Description | 1st Airport Stakeholders Workshop |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The OR-MASTER team presented the developed models. The stakeholders provided useful input on the airport slot allocation and decaled capacity problems. |
| Year(s) Of Engagement Activity | 2016 |
| Description | 97th Transport Research Board Annual Meeting, Washington DC, USA 7-11 January 2018 - On the Development of a Fair and Efficient Slot Scheduling Mechanism at Congested Airports |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Professor Konstantinos G. Zografos (OR-MASTER PI) organized a session on Airport Capacity Management at the 97th Annual TRB Meeting and presented a slot allocation mechanism that considers efficiency, fairness, and airline preferences. Around 50 professionals, academics, policymakers, and postgraduate students participated in this talk and became aware of the findings of the OR-MASTER project and its impact on slot allocation policies and airport capacity management. This is an activity of significant potential impact that has the potential to influence practice. The paper on which this presentation was based was characterized as practice-ready. TRB is using the following criteria to characterize a paper as practice-ready: The paper must be recommended for presentation at the Annual Meeting. (Publication in the Transportation Research Record is not a requirement.) The research results presented and discussed in the paper should be ready for immediate implementation or with minimal additional research or implementation effort. The paper should contain guidance on the additional effort required for implementation. The research should make a major contribution to the solution of current or future problems or issues. This engagement activity has the potential to stimulate increased research interest and to influence professional practice. |
| Year(s) Of Engagement Activity | 2018 |
| URL | http://www.trb.org/AnnualMeeting/AnnualMeeting.aspx |
| Description | 97th Transportation Research Board Annual Meeting, Washington D.C., U.S.A. |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Three fairness objectives for slot scheduling at capacity-constrained airports are proposed. The three objectives are integrated into a bi-objective modelling framework, which is solved by the e-constraint method using a hierarchical solution procedure following existing IATA slot allocation rules. |
| Year(s) Of Engagement Activity | 2017 |
| URL | http://www.trb.org/AnnualMeeting/AnnualMeeting.aspx, |
| Description | A Bilateral Trading Mechanism for Slot Trading in the Secondary Market (Heathrow Airport Meeting) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Dr Kamyar Kargar & Professor Konstantinos G. Zografos (PI of the OR-MASTER project) presented to Heathrow Airport experts' OR-MASTER results regarding the development of a mechanism for bilateral trading for secondary airport slot allocation. |
| Year(s) Of Engagement Activity | 2024 |
| Description | A Constructive Heuristic Approach for Single Airport Slot Allocation Problems (2019 IEEE Symposium Series on Computational Intelligence (SSCI)) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | A Constructive Heuristic Approach for Single Airport Slot Allocation Problems was presented at the 2019 IEEE Symposium Series on Computational Intelligence (SSCI) |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://ieeexplore.ieee.org/document/9002892/ |
| Description | A Hyper-Heuristic Algorithm for Airport Slot Allocation (4th IMA and OR Society Conference of Mathematics of Operational Research) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Theodoti Kerama presented at the 4th IMA and OR Society Conference of Mathematics of Operational Research (2023). The presentation is a joint work between Theodoti Kerama, Konstantinos G. Zografos (PI of OR-MASTER project), and Dr. Burak Boyaci. The presentation proposed a Hyper-Heuristic framework for solving the single-objective airport slot allocation problem. |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://cdn.ima.org.uk/wp/wp-content/uploads/2022/09/1-FINAL-19.04.23.pdf |
| Description | A Modelling Framework for Solving the Network-Wide Airport Slot Allocation Problem- presentation in the 11th Triennial Symposium on Transportation Analysis (TRISTAN XI) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Merve Keskin (OR-MASTER Senior Research Associate) presented in the 11th Triennial Symposium on Transportation Analysis conference (TRISTAN XI). The presentation is joint work between Merve Keskin and Konstantinos G. Zografos (PI, OR-MASTER). The presentation proposed two bi-objective optimisation models for the network level slot allocation problem. The proposed models consider: i) efficiency, ii) fairness, and iii) connectivity considerations. |
| Year(s) Of Engagement Activity | 2022 |
| URL | https://tristan2022.org/proceedings |
| Description | A Multi-Objective framework for investigating airport schedule efficiency, fairness, flexibility, and regularity trade-offs- presentation in the Eighth International Workshop on Freight Transportation and Logistics (ODYSSEUS) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Theodoti Kerama (PhD student, OR-MASTER) presented in the Eighth International Workshop on Freight Transportation and Logistics. The presentation is a joint work between Theodoti Kerama and Konstantinos G. Zografos (PI, OR-MASTER). The presentation proposed a multi-objective optimization framework which considers flexibility, efficiency, fairness, and regularity considerations. |
| Year(s) Of Engagement Activity | 2022 |
| URL | https://symposia.cirrelt.ca/Odysseus2021/en/home |
| Description | A Simheuristic Method for Airport Runway Scheduling (The Operational Research Society's Annual Conference- OR64) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Robert Shone (presenter) presented at the Operational Research Society's Annual Conference (OR64, 2022). The presentation is a joint work between Robert Shone, Kevin Glazebrook, and Konstantinos G. Zografos (PI of OR-MASTER project). The presentation proposed a Simheuristic Method for Airport Runway Scheduling. |
| Year(s) Of Engagement Activity | 2022 |
| URL | https://theorsociety.eventsair.com/or64-annual-conference/ |
| Description | A column generation based hyper-heuristic algorithm for solving the aircraft recovery problem - presentation in the 31st European Conference of Operational Research (EURO2021) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | David Torres Sanchez (Senior Research Associate, OR-MASTER) presented in the Airport Capacity Management session in the OR in Aviation stream of the the 31st European Conference of Operational Research (EURO2021). The presentation is joint work among David Torres Sanchez , Burak Boyaci and Konstantinos G. Zografos (PI, OR-MASTER). The presentation concerned a new hybrid solution procedure to solve the aircraft recovery problem. The proposed framework generates flight schedules to minimize costs associated with flight cancellations and delays while adhering to the operational constraints imposed by the regulations. The hybrid solution procedure uses a column generation based algorithm leading to formulation of Shortest Path Problems with Resource Constraints (SPPRC). The proposed framework managed to solve instances of practical size in a reasonable time. |
| Year(s) Of Engagement Activity | 2021 |
| URL | http://files.convin.gr/various/EURO21-Conference_e-Handbook_Full_version.pdf |
| Description | A multi-criteria decision-making framework for generating and assessing airport schedules at the 3rd Institute of Mathematics and Operational Research Society conference on Mathematics in Operational Research |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Fotios A. Katsigiannis (PhD candidate, OR-MASTER) presented "A multi-criteria decision-making framework for generating and assessing airport schedules". The presentation concerned joint work between Fotios A. Katsigiannis and Konstantinos G. Zografos (PI, OR-MASTER). This talk concerned a decision-making framework that integrates stakeholders' preferences and multiple objectives. The framework consists of a multi-objective mixed integer programming (MIP) model and solution approach that enables the generation of all non-dominated schedules concerning total displacement, maximum displacement and the number of displaced requests objectives. The framework is complimented by a multi-criteria decision-making approach that considers operational delays and assesses the performance of each generated schedule based on stakeholders' preferences. The applicability of the proposed framework is demonstrated using preference data obtained from a survey with airport slot allocation stakeholders. |
| Year(s) Of Engagement Activity | 2021 |
| URL | https://ima.org.uk/14347/14347/ |
| Description | A new stochastic optimisation framework for airport slot allocation at the 3rd Institute of Mathematics and Operational Research Society conference on Mathematics in Operational Research |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Robert Shone and Jamie Fairbrother (previously Senior Research Associates, OR-MASTER) presented "A new stochastic optimisation framework for airport slot allocation". The presentation was joint work among Jamie Fairbrother, Robert Shone, Konstantinos G. Zografos (PI, OR-MASTER) and Kevin Glazebrook (Co-I, OR-MASTER). The presentation introduced a new two-stage stochastic linear programming model for slot allocation, which incorporates runway service times uncertainty. The presentation elaborated on the trade-off between the operational and schedule delays and presented preliminary numerical results. |
| Year(s) Of Engagement Activity | 2021 |
| URL | https://ima.org.uk/14347/14347/ |
| Description | A talk or presentation - Mathematical models and algorithms for sustainable airport slot allocation, presented at Air France-KLM (Jan 2022) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | On Tuesday, January 25th, 16:00 - 17:00, as part of the KLM series of webinars inside the "AI for Aviation Sustainability" track, John Drake, David Melder and Sha Wang gave the presentation "Mathematical models and algorithms for sustainable airport slot allocation". The session discussed the ongoing work John, Sha and David are completing within OR-MASTER addressing the issues when trying to reduce congestion at airports through more efficient allocation of slots. Over 120 employees of Air France and KLM were present, in addition to a number of represantatives from other organisations. A follow up meeting was subsequently arranges with the KLM representative of the IATA Slot Policy Working Group. |
| Year(s) Of Engagement Activity | 2022 |
| Description | Achieving allocation stability in airport slot scheduling decisions - presentation in the 31st European Conference of Operational Research (EURO2021) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Fotios A. Katsigiannis (PhD Student, OR-MASTER) presented in the Airport Capacity Management session in the OR in Aviation stream of the 31st European Conference of Operational Research (EURO2021). The presentation is joint work between Fotios A. Katsigiannis and Konstantinos G. Zografos (PI, OR-MASTER) The presentation proposed a stable airport slot allocation model formulated as a Mixed Integer Program (MIP) that considers a surrogate cost function for each submitted request and provides guarantees on the stability/acceptability of the generated airport slot schedule. The model integrates time-dependent cost functions both for the airlines and the coordinators which consider multiple characteristics and comply with the requirements of the ASA regulatory framework. Preliminary results explore the trade-off between the stability and the gains in terms of displacement and spilled passenger demand. |
| Year(s) Of Engagement Activity | 2021 |
| URL | http://files.convin.gr/various/EURO21-Conference_e-Handbook_Full_version.pdf |
| Description | Air Traffic Management.net (April) |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The article "Slot Machining" appeared in Air Traffic Management.net magazine |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://www.airtrafficmanagement.net/2015/04/slot-machining/ |
| Description | Air Traffic Management.net (March) |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The article "Superbrain to offer big data capacity boost" appeared in Air Traffic Management.net magazine |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://www.airtrafficmanagement.net/2015/03/superbrain-to-crunch-big-data-for-capacity-boost/ |
| Description | Airport Focus International |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The article "The search for slots" appeared in Airport Focus International |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://airportfocusinternational.com/the-search-for-slots/ |
| Description | Airport Slot Allocation Processes (ASAP) kick off meeting on the 18th and 19th October 2018 in Lisbon, Portugal. |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | Professor Konstantinos G. Zografos (OR-MASTER PI) gave a presentation on "Optimising airport slot scheduling decisions: The OR-MASTER project" was given at the Airport Slot Allocation Processes (ASAP) kick off meeting on the 18th and 19th October 2018 in Lisbon, Portugal. |
| Year(s) Of Engagement Activity | 2018 |
| URL | https://citta.fe.up.pt/events/airport-slot-allocation-processes-asap-kickoff-meeting |
| Description | An evolutionary heuristic for solving the robust single airport slot allocation problem (4th IMA and OR Society Conference of Mathematics of Operational Research ) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Dr Aleksandr Pirogov presented at the 4th IMA and OR Society Conference of Mathematics of Operational Research (2023). The presentation is a joint work between Aleksandr Pirogov and Konstantinos G. Zografos (PI of OR-MASTER project). The presentation proposed an evolutionary heuristic method for solving the robust single airport slot allocation problem. |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://cdn.ima.org.uk/wp/wp-content/uploads/2022/09/1-FINAL-19.04.23.pdf |
| Description | Annual Conference STOR-i, Lancaster University, England 11-12 January 2018 - Strategic and Tactical Methods for Reducing Delays at Airports |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Dr Rob Shone (OR-MASTER Research Associate) gave a presentation describing how airport resources can be managed dynamically in response to observed levels of congestion and weather conditions. This talk discussed how a hybridized queuing system formulation can be used within a stochastic dynamic programming framework in order to find an optimal policy for the dynamic control of airport resources. 100 people attended this conference.The objective of this activity was to stimulate research interests in aviation Operational Research. |
| Year(s) Of Engagement Activity | 2018 |
| URL | http://www.lancaster.ac.uk/stor-i/training/conferences--workshops/annual-conference/ |
| Description | CENTRAL Forum, Lancaster University, England, 3 October 2017 - Tactical Optimisation for the Management of Scarce Resources at Busy Airports |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Dr. Rob Shone (OR-MASTER Research Associate) presented a talk on how airports can adapt to the increasing demand by improving the efficiency of their operations. This talk to 25 postgraduate students and academics lead to further discussion on tactical optimization for the management of scarce resources at busy airports. The objective of this activity was to stimulate the research interests of the students in the area of aviation Operational Research. |
| Year(s) Of Engagement Activity | 2017 |
| Description | E&T |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The article "£70m boost for UK science and engineering projects" appeared in Engineering & Technology Magazine |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://eandt.theiet.org/news/2015/mar/epsrc-funding.cfm |
| Description | European Conference on Stochastic Optimization (ECSO), Rome , Italy 20-22 September 2017 - Tactical Optimisation for the Management of Scarce Resources at Busy Airports |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Dr Rob Shone (OR-MASTER Research Associate) discussed how a hybridized queuing system formulation can be used within a stochastic dynamic programming framework in order to find an optimal policy for the dynamic control of airport resources. There were 20 people and a question and answer session afterwards. |
| Year(s) Of Engagement Activity | 2017 |
| URL | http://ecso2017.inf.uniroma3.it/ |
| Description | GARS Research Seminar on "How to make Slot Allocation work better?" |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Professor Konstantinos G. Zografos (PI of the OR-MASTER Project) gave the presentation titled "Towards Evidence Based Slot Allocation Policy Making: How Optimization Based Slot Allocation can Improve Slot Allocation Policies, Process and Outcomes". |
| Year(s) Of Engagement Activity | 2023 |
| Description | Getting it Right at Mexico City's New Airport: International Conference on Aviation and Airport Services Reforms for the Next Generation |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos (OR-MASTER PI) gave a presentation titled "Slot Allocation: Alternatives, Strengths and Weaknesses" in Mexico City, November 5-6, 2015 |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://www.alianzaxcompetencia.com/getting-it-right-at-mexico-citys-new-airport-international-confer... |
| Description | IMA/OR Society conference presentation on "Incorporating the value of slots in airport slot scheduling decisions" |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Postgraduate students |
| Results and Impact | Fotis Katsigiannis (OR-MASTER PhD Student) gave a talk to get feedback on "A multi-criteria decsion making hierarchy which considers several airport slot chararteristics so as to determine the Slot Valauation Index (SVI). |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://cdn.ima.org.uk/wp/wp-content/uploads/2018/06/PROGRAMME-INSERT.pdf |
| Description | IMA/OR Society conference presentation on "Optimising the trade-off between scheduling and operational delays at congested airports" |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Dr. Rob Shone gave a talk about collaborative work undertaken with other members of the Centre for Transport and Logistics (CENTRAL). The purpose of the talk is to suggest a novel solution approach to the problem of producing airport slot allocations which take into account operational (queueing) delays and stimulate further ideas on this topic. Most of the audience members were academic or postgraduate students. |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://cdn.ima.org.uk/wp/wp-content/uploads/2018/06/PROGRAMME-INSERT.pdf |
| Description | IMA/OR Society conference presentation on "Optimum Scheduling of Series of Slots with Scheduling Season Segmentation" |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Dr Jamie Fairbrother gave a talk about slot scheduling with segmentation of the scheduling season. Most of the audience members were academics or postgraduate students. The purpose was to disseminate research to the academic community. |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://ima.org.uk/9649/2nd-ima-and-or-society-conference-on-mathematics-of-operational-research/ |
| Description | Incorporating declared capacity uncertainty in optimizing airport slot allocation (The Operational Research Society's Annual Conference- OR64) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Dr Aleksandr Pirogov (presenter) presented at the Operational Research Society's Annual Conference (OR64, 2022). The presentation is a joint work between Aleksandr Pirogov and Konstantinos G. Zografos (PI of OR-MASTER project). The presentation proposed a new robust optimization formulation based on the concept of stability radius and considers endogenously the airport's declared capacity. |
| Year(s) Of Engagement Activity | 2022 |
| URL | https://theorsociety.eventsair.com/or64-annual-conference/ |
| Description | Incorporating network properties in modelling and solving the airport slot allocation problem at INFORMS 2021 Annual Meeting |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Merve Keskin (OR-MASTER Senior Research Associate) gave a talk titled 'Incorporating network properties in modelling and solving the airport slot allocation problem'. The presentation introduced a novel mathematical model and an efficient solution algorithm for optimizing the allocation of airport slots at network level. The proposed model incorporates properties of the underlying network to: i) adjust the slot allocations of individual airports, ii) ensure airline schedule feasibility throughout the network, and iii) minimize the deviation from the initial schedules. |
| Year(s) Of Engagement Activity | 2021 |
| URL | https://f.hubspotusercontent30.net/hubfs/3449182/Wednesday%20Virtual.pdf?__hstc=194041586.dab587d8e5... |
| Description | Institute for Operational Research and the Management Sciences (INFORMS) Annual Meeting, Houston, USA 22 to 25 October 2017 |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Dr Jamie Fairbrother (OR-MASTER Senior Research Associate) described a new approach to fairness in slot allocation which takes into account taking into account the peaking characteristics of demand. 30 people participated in this session.The objective of this presentation was to contribute to the scientific dialogue regarding the development of policies and mechanisms for allocating slots at congested airports. |
| Year(s) Of Engagement Activity | 2017 |
| URL | http://meetings2.informs.org/wordpress/houston2017/ |
| Description | Institute of Mathematics and its Applications and Operations Research Society meeting, Birmingham, England 20 -21 April 2017 - A decision framework for allocating scare resources at congested airports |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Poster which gave a broad overview of the OR-MASTER project. This explained the context of airport congestion, the aims and structure of the project and work currently being undertaken. The session was attended by 200 people at the conference and several of them stopped for a one to one discussion.The objective of this activity was to stimulate research interests in aviation operational research, and to contribute to the scientific debate regarding airport slot allocation and capacity management. |
| Year(s) Of Engagement Activity | 2017 |
| URL | https://ima.org.uk/1365/ima-society-conference-mathematics-operational-research/ |
| Description | Institute of Mathematics and its Applications and Operations Research Society meeting, Birmingham, England 20 -21 April 2017 - Airport and air traffic optimization session |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Dr. Michael Epitropakis (OR-MASTER affiliated researcher) gave a presentation titled "Airport slot scheduling decisions through evolutionary multi-objective algorithms: An initial study". 20 people attended this session. The objective of this activity was to stimulate research interests in aviation operational research and to contribute to the scientific debate regarding airport slot allocation and capacity management. |
| Year(s) Of Engagement Activity | 2017 |
| URL | https://cdn.ima.org.uk/wp/wp-content/uploads/2016/03/Programme-IMA-and-OR-Society-Conference-on-Math... |
| Description | Institute of Mathematics and its Applications and Operations Research Society meeting, Birmingham, England 20 -21 April 2017 - Modelling Operational Delays at Airports |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | This OR-MASTER poster presented "Modelling Operational Delays at Airports" at the conference and there were questions and a discussion. The session was attended by 200 people and there were one to one discussions with people. The objective of this activity was to stimulate research interests in aviation operational research, and to contribute to the scientific debate regarding airport slot allocation and capacity management. |
| Year(s) Of Engagement Activity | 2017 |
| URL | https://ima.org.uk/1365/ima-society-conference-mathematics-operational-research/ |
| Description | International Airport Review (July) |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The article " Improving airport capacity management with OR-MASTER" appeared in the International Airport Review (magazine and web) |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://www.internationalairportreview.com/20035/past-issues/issue-4-2015/improving-airport-capacity-... |
| Description | International Airport Review (March) |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The article "Experts address UK airport congestion" appeared in International Airport Review |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://www.internationalairportreview.com/19129/airport-news/experts-address-uk-airport-congestion/ |
| Description | Interviews with stakeholders from the airport industry |
| Form Of Engagement Activity | A formal working group, expert panel or dialogue |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Study participants or study members |
| Results and Impact | As part of his PhD, Fotios Katsigiannis conducted a series of interviews and discussions with stakeholders relating to airport slot allocation. The aim of this activity is to collect the views of the participants and determine the relative significance of (a) the characteristics of airport slots and (b) the assessment criteria of airport slot schedules. |
| Year(s) Of Engagement Activity | 2019,2020 |
| Description | Konstantinos G. Zografos' presentation at Singapore University of Technology and Design (SUTD) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Presentation title: " "Optimum Allocation of Scarce Airport Resources: The OR-MASTER Project", presentation given to SUTD researchers. |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://www.lancaster.ac.uk/news/lums-professors-singapore-visit-marks-start-of-new-knowledge-exchan... |
| Description | Konstantinos G. Zografos' presentation at the University of Edinburgh |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Presentation title: " Mathematical Models and Algorithms for Allocating Scarce Airport Resources: Towards Efficient, Fair, and Consistent Slot Allocation Decision Making". This presentation was given to researchers of the University of Edinburgh (School of Mathematics and Business School). |
| Year(s) Of Engagement Activity | 2020 |
| Description | Mathematical Models and Algorithms for Allocating Scarce Airports Resources - meetings with AirFrance-KLM |
| Form Of Engagement Activity | A formal working group, expert panel or dialogue |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Dr. John Drake, Dr. Sha Wang and Mr. David Melder participated in a series of meetings with stakeholders from AirFrance-KLM, presenting and validating the models developed during the project, and discussing Airport Capacity and delay issues. |
| Year(s) Of Engagement Activity | 2022,2023 |
| Description | Mathematical Models and Algorithms for Allocating Scarce Airports Resources- meeting with Gatwick Airport |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos, Theodoti Kerama (PhD student), and Stephen King (Research and Enterprises Services), met with Gatwick Airport experts to discuss the results of the OR-MASTER models, and airport capacity management issues. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for Allocating Scarce Airports Resources- meeting with Manchester Airport |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos, Theodoti Kerama (PhD student), and Stephen King (Research and Enterprises Services), presented the results of the OR-MASTER models and discussed airport capacity management issues. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for Allocating Scarce Airports Resources- meeting with the Athens International Airport (AIA) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Konstantinos G. Zografos participated in meetings with Athens International Airport (AIA) experts, to discuss OR-MASTER outcomes and airport capacity management issues. |
| Year(s) Of Engagement Activity | 2022,2023 |
| Description | Mathematical Models and Algorithms for Allocating Scarce Airports Resources- meeting with the GoldAir Handling |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos met with experts from the GoldAir Handling in Greece and discussed the results of the OR-MASTER on airport slot allocation. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for Allocating Scarce Airports Resources- meeting with the Hellenic Slot Coordination Authority (HSCA) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos met with experts from the Hellenic Slot Coordination Authority and discussed the implications of the OR-MASTER results on airport slot allocation policies and practice. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for Allocating Scarce Airports Resources- meeting with the Hellenic Slot Coordination Authority (HSCA) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Lancaster University OR-MASTER researchers met with experts from the Hellenic Slot Coordination Authority and discussed issues regarding the implementation of the Worldwide Airport Slot Guidelines (WASG). |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for allocating scarce airports resources-The OR-MASTER Project (Athens International Airport Meeting) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos participated in meetings with Athens International Airport (AIA) experts to discuss the implications of the OR-MASTER outcomes on airport slot allocation policies and practice. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for allocating scarce airports resources-The OR-MASTER Project (Birmingham International Airport Meeting) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos (PI of the OR-MASTER project) presented the results of the OR-MASTER models and discussed their implications on airport slot allocation policies and practice. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for allocating scarce airports resources-The OR-MASTER Project (Birmingham International Airport Meeting) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos (PI of the OR-MASTER project) presented the results of the OR-MASTER models and discussed their implications on airport slot allocation policies and practice. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for allocating scarce airports resources-The OR-MASTER Project (Heathrow Airport Meeting) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos (PI of the OR-MASTER project) presented to Heathrow Airport Experts the results of the OR-MASTER models and discussed the implications of the OR-MASTER results on airport capacity management and slot allocation policies and practice. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for allocating scarce airports resources-The OR-MASTER Project (Manchester Airport Meeting) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos (PI of the OR-MASTER project) presented the results of the OR-MASTER models and discussed the implications of the OR-MASTER results on airport slot allocation policy and practice. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Mathematical Models and Algorithms for allocating scarce airports resources-The OR-MASTER Project (Stansted Airport Meeting) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos (PI of the OR-MASTER project) presented the results of the OR-MASTER models and discussed slot allocation and airport capacity management issues. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Modelling and solving the airport slot allocation problem at network level at the 63rd Conference of the Operational Research Society (OR63) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Merve Keskin (OR-MASTER Senior Research Associate) and Konstantinos Zografos (OR-MASTER PI) participated in the OR63 conference with a presentation titled 'Modelling and solving the airport slot allocation problem at network level'. The presentation proposed a mathematical model to formulate the problem of adjusting the slot allocations of individual airports such that the schedule feasibility throughout the network is established. The model is formulated as a bi-objective linear integer program that minimizes the total and maximum displacement. The proposed model is applied to sample data and the results are analysed to derive managerial insights for the slot coordinators. |
| Year(s) Of Engagement Activity | 2021 |
| URL | https://www.theorsociety.com/events/annual-conference/or63-streams/ |
| Description | Multi-Objective, Multi-Stakeholder Airport Slot Scheduling Considering Expected Delays at INFORMS 2021 Annual Meeting (Aviation Applications Section best PhD presentation session) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Fotios Katsigiannis (OR-MASTER PhD student), participated in the INFORMS 2021 conference and the Aviation Applications Section (AAS) Best Student Presentation Competition. This year's AAS Best Student Presentation Competition hosted presentations from 12 doctoral students from around the globe. Fotios' talk was entitled "Multi-Objective, Multi-Stakeholder Airport Slot Scheduling Considering Expected Delays" and received an Honorable Mention. The presentation concerned a multi-objective, multi-stakeholder decision making framework for airport slot scheduling decisions. The framework generates the complete set of non-dominated schedules for any triplet of linear slot scheduling objectives. To deal with the decision-making complexity arising from the large number of efficient schedules, a subtractive clustering algorithm is introduced so as to select representative schedules. The expected delays associated with each representative schedule are estimated and the consideration of stakeholders' preferences enables the elicitation of the most preferable airport schedule using schedule displacement and operational delay metrics. |
| Year(s) Of Engagement Activity | 2021 |
| URL | http://meetings2.informs.org/wordpress/anaheim2021/ |
| Description | N8 Decarbonising Transport Workshop, Institute for Transport Studies, University of Leeds |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Dr Rob Shone (OR-MASTER Research Associate) gave a presentation to develop an understanding of how the objectives of the OR-MASTER project are relevant to broader issues in transportation, and to raise awareness of the work being done on the project. |
| Year(s) Of Engagement Activity | 2018 |
| Description | NATCOR presentation on applications of stochastic modelling in aviation |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Postgraduate students |
| Results and Impact | Dr Rob Shone delivered a presentation to postgraduate students attending the NATCOR taught postgraduate course on stochastic modelling which took place at Lancaster University from 1st -5th April 2019. A wide range of applications of stochastic modelling in aviation were discussed, and brief question and answer session took place at the end. |
| Year(s) Of Engagement Activity | 2019 |
| URL | http://www.natcor.ac.uk/ |
| Description | NATS expert interacts with the OR-MASTER team |
| Form Of Engagement Activity | Participation in an open day or visit at my research institution |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Study participants or study members |
| Results and Impact | Members of the OR-MASTER participated in a series of meetings and discussions with an expert from NATS (OR-MASTER Advisory Board Member) |
| Year(s) Of Engagement Activity | 2020 |
| Description | NZHealthTec |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Media (as a channel to the public) |
| Results and Impact | The article "Lancaster experts to lead new expostulate to clear airfield ability and tackle congestion" appeared on NZHealthTec.com |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://www.nzhealthtec.com/lancaster-experts-to-lead-new-drive-to-unlock-airport-capacity-and-tackle... |
| Description | OR-MASTER project lead discusses airport congestion on BBC Radio 4 |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Public/other audiences |
| Results and Impact | Professor Konstantinos G. Zografos (OR-MASTER PI) spoke on BBC Radio4 's "You and Yours" programme on 10th March 2016 about the reason why more and more flights arriving and departing from UK airports are ending in delays and his OR-MASTER research. The objective of this activity was to make the general public aware of the potential impacts of the OR-MASTER in reducing flight delays.Media monitoring shows that the programme was listened to by 3.28 Million people. |
| Year(s) Of Engagement Activity | 2016 |
| URL | http://www.bbc.co.uk/programmes/b072hlw3 |
| Description | OR60 'Anniversary' Conference, 11-13 September 2018 - The Operational Research Society |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Dr Jamie Fairbrother (OR-MASTER Senior Research Associate) gave a presentation entitled 'A slot allocation model with queuing constraints based on the server-always-busy approximation'. The talk was about a new model for allocation which incorporated operational delays and which was developed by Dr Fairbrother and Dr Shone. |
| Year(s) Of Engagement Activity | 2018 |
| URL | http://www.theorsociety.com/Pages/Conferences/OR60/OR60.aspx |
| Description | OR60 'Anniversary' Conference, 11-13 September 2018 - The Operational Research Society |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Fotis Katsigiannis (OR-MASTER Doctoral Student) gave a presentation to get feedback on a multi-criteria decision making hierarchy which will take into account stakeholders' preferences so as to elicit schedules from a number of equally efficient alternatives. |
| Year(s) Of Engagement Activity | 2018 |
| URL | http://www.theorsociety.com/Pages/conferences/OR60/OR60.aspx |
| Description | OR60 'Anniversary' Conference, 11-13 September 2018 - The Operational Research Society |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Dr Rob Shone (OR-MASTER Research Associate) gave a keynote presentation for the "Stochastic Processes" stream of the OR60 conference. A short question-and-answer session took place at the end. The talk covered methods for modelling queues of aircraft as stochastic processes, and related optimisation problems. The talk was aiming to inform audience members about the context of the OR-MASTER project and the modelling and optimisation challenges that we are planning to tackle in the future. |
| Year(s) Of Engagement Activity | 2018 |
| URL | http://www.theorsociety.com/Pages/conferences/OR60/OR60.aspx |
| Description | Odysseus, 7th International Workshop on Freight Transport and Logistics, Cagliari, Italy 3 - 8 June 2018 |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Dr Jamie Fairbrother (OR-MASTER Senior Research Associate) gave a presentation on "Introducing flexibility and demand-based fairness in slot scheduling decisions". |
| Year(s) Of Engagement Activity | 2018 |
| URL | http://convegni.unica.it/odysseus2018/ |
| Description | Optimising airport slot allocation decisions with stability considerations- presentation in the 11th Triennial Symposium on Transportation Analysis (TRISTAN XI) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Fotios A. Katsigiannis (PhD student, OR-MASTER) presented in the 11th Triennial Symposium on Transportation Analysis. The presentation is a joint work between Fotios A. Katsigiannis and Konstantinos G. Zografos (PI, OR-MASTER). The presentation proposed an IP formulation along with a Deferred Acceptance Algorithm for producing request-to-slot assignments that are Pareto optimal and acceptable schedules. Reported results indicate stable schedules in terms of both airlines and coordinators perspectives. |
| Year(s) Of Engagement Activity | 2022 |
| URL | https://tristan2022.org/proceedings |
| Description | Optimization-Based Airport Slot Allocation and Implications for Policy and Practice: The OR-MASTER Project (TRB 103rd Annual Meeting, AV060: Airfield & Airspace Performance) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Professor Konstantinos G. Zografos (PI, OR-MASTER) presented the results of the OR-MASTER project and their implications on airport slot allocation and capacity management. |
| Year(s) Of Engagement Activity | 2024 |
| Description | Optimization-Based Airport Slot Allocation and Implications for Policy and Practice: The OR-MASTER Project (University of Maryland, USA) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Professor Konstantinos G. Zografos (PI, OR-MASTER) presented an overview of the OR-MASTER project, and its results. |
| Year(s) Of Engagement Activity | 2024 |
| Description | Optimization-Based Airport Slot Allocation and Implications for Policy and Practice: The OR-MASTER Project (meeting with NATS) |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Professor Konstantinos G. Zografos (PI, OR-MASTER) presented an overview of the current status and results of the OR-MASTER project to the NATS team and discussed with NATS experts : i) research developments at NATS regarding airport capacity management, and ii) the implications of the OR-MASTER results on airport slot allocation policies and practice. |
| Year(s) Of Engagement Activity | 2024 |
| Description | Organisation of the 'Airport Capacity Management' session in the 'OR in Aviation' stream of the 31st European Conference of Operational Research (EURO2021) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Konstantinos G. Zografos (OR-MASTER PI) organised and chaired the Airport Capacity Management in the OR in Aviation stream in the 31st European Conference of Operational Research (EURO2021) . Multiple academics and researchers working on airport slot allocation and airport capacity management have submitted presentations for the session. |
| Year(s) Of Engagement Activity | 2021 |
| URL | http://files.convin.gr/various/EURO21-Conference_e-Handbook_Full_version.pdf |
| Description | Organisation of the 'Airport Capacity' session in the 3rd Institute of Mathematics and Operational Research Society conference on Mathematics in Operational Research |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Konstantinos G. Zografos organised and chaired the "Airport Capacity" session at the 3rd Institute of Mathematics and Operational Research Society conference on Mathematics in Operational Research. The session hosted presentations from OR-MASTER members (ordered as per the session's programme) . Fotios Katsigiannis, PhD Candidate (OR-MASTER) presented a "A multi-criteria decision-making framework for generating and assessing airport schedules." Sha Wang, PhD Candidate (OR-MASTER from Queen Mary university) presented an "Adaptive large neighbourhood search for single airport slot allocation problems." Dr. Rob Shone and Dr. Jamie Fairbrother (CENTRAL members) presented "A new stochastic optimisation framework for airport slot allocation." |
| Year(s) Of Engagement Activity | 2021 |
| URL | https://ima.org.uk/14347/14347/ |
| Description | Organisation of the 'OR in Aviation' stream - 31st European Conference of Operational Research (EURO2021) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Konstantinos G. Zografos organised the OR in Aviation stream in the 31st European Conference of Operational Research (EURO2021) The stream comprised four sessions. The sessions' titles are provided below (ordered as they appear in the conference handbook): - OR in Aviation 1 - Airport Capacity Management - OR in Aviation 3 - OR in Aviation 2 |
| Year(s) Of Engagement Activity | 2021 |
| URL | http://files.convin.gr/various/EURO21-Conference_e-Handbook_Full_version.pdf |
| Description | Participation in the Workshop on Slot Allocation Research- Süllberg Society: On Slots |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Professor Konstantinos G. Zografos (PI of the OR-MASTER project) participated in the Workshop on Slot Allocation and airport capacity management issues. |
| Year(s) Of Engagement Activity | 2023 |
| Description | Presentation of Alexandre Jacquillat at STOR-i 2020 annual conference "ANALYTICS FOR OPERATIONS, SCHEDULING AND PRICING IN AIR TRANSPORTATION" |
| Form Of Engagement Activity | Participation in an open day or visit at my research institution |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | As part of his visit, Alexandre Jacquillat (MIT Sloan School of Management) presented at the STOR-i annual conference titled "ANALYTICS FOR OPERATIONS, SCHEDULING AND PRICING IN AIR TRANSPORTATION " |
| Year(s) Of Engagement Activity | 2020 |
| URL | https://www.lancaster.ac.uk/stor-i/research/workshops-and-seminars/#d.en.427867 |
| Description | Presentation of Alexandre Jacquillat titled 'A Stochastic Integer Programming Approach to Air Traffic Scheduling and Operations' |
| Form Of Engagement Activity | Participation in an open day or visit at my research institution |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | As part of his visit, Alexandre Jacquillat (MIT Sloan School of Management) was invited to give a talk titled 'A Stochastic Integer Programming Approach to Air Traffic Scheduling and Operations'. Members of the OR-MASTER team (Konstantinos G. Zografos, Kevin Glazebrook, Jamie Fairbrother, Robert Shone) attended the talk and interacted with the speaker. |
| Year(s) Of Engagement Activity | 2020 |
| Description | Presentations on OR-MASTER models (Professor Konstantinos G. Zografos (PI) and Fotios Katsigiannis (OR-MASTER PhD Candidate) ) to a national coordination authority |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Presentations on OR-MASTER models (Professor Konstantinos G. Zografos (PI) and Fotios Katsigiannis (OR-MASTER PhD Candidate) ) to a slot coordination authority |
| Year(s) Of Engagement Activity | 2020 |
| Description | Presidential Address at British Science Association Festival |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Public/other audiences |
| Results and Impact | Professor Kevin Glazebrook (OR-MASTER CoPI) A lecture entitled "Advanced Airports and On-Time Ambulances" was given to approximately 50 people at the British Science Association Festival, which sparked questions and discussion. |
| Year(s) Of Engagement Activity | 2015 |
| Description | Professor Zografos' presentation of the OR-MASTER (meeting between OR-MASTER and NATS) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Professional Practitioners |
| Results and Impact | Konstantinos Zografos (PI, OR-MASTER) presented an overview of the current status of the OR-MASTER project and its results to date to the NATS team. |
| Year(s) Of Engagement Activity | 2021 |
| Description | Research presentation at INFORMS Annual Meeting 2018 |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Dr Jamie Fairbrother (OR-MASTER Senior Research Associate) gave a presentation of work on a slot allocation model with flexible scheduling of request series. The purpose was to disseminate our research and get feedback from other academics. |
| Year(s) Of Engagement Activity | 2018 |
| URL | https://www.informs.org/Meetings-Conferences/INFORMS-Conference-Calendar/2018-INFORMS-Annual-Meeting... |
| Description | Research presentation at INFORMS Annual Meeting 2018 |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Dr Rob Shone (OR-MASTER Research Associate) gave a talk to an audience of academics and professional practitioners attending the INFORMS Annual Meeting in Phoenix, November 2018. The purpose was to raise awareness and interest in the work being done as part of the OR-MASTER project and obtain feedback on our research activities from experts in aviation applications. |
| Year(s) Of Engagement Activity | 2018 |
| URL | https://www.informs.org/Meetings-Conferences/INFORMS-Conference-Calendar/2018-INFORMS-Annual-Meeting... |
| Description | STOR-I Problem Solving Day |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | Local |
| Primary Audience | Postgraduate students |
| Results and Impact | Dr Jamie Fairbrother (OR-MASTER Senior Researcher Associate) ran a problem-solving day event for postgraduate students. The problem was about slot allocation and so highlighted the research on the project taking place in the Center for Transport and Logistics. |
| Year(s) Of Engagement Activity | 2018 |
| Description | STOR-i Research Talk, Lancaster Univeristy, England 24 January 2018 - Fairness and Prioritization in Slot Scheduling |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Postgraduate students |
| Results and Impact | Dr Jamie Fairbrother (OR-MASTER Senior Research Associate ) presented a new slot allocation model which incorporated efficiency, fairness and airline preferences. 14 postgraduate students participated in this event and became aware of the OR-MASTER project results . The objective of this activity was to stimulate the research interest of STOR-i postgraduate students in the area of aviation Operational Research. |
| Year(s) Of Engagement Activity | 2017 |
| Description | STOR-i Research Topics Presentation |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Postgraduate students |
| Results and Impact | Professor Konstantinos G. Zografos delivered a presentation to postgraduate students enrolled on the STOR-i PhD programme at Lancaster University on "Slot Allocation and Stochastic Modelling at Airports", with particular reference to the activities of the OR-MASTER project. The students are expected to write academic reports on topics related to the application of statistics and/or operational research in industry, and it is hoped that they will consider the modelling and mitigation of congestion at airports as a potential subject for their reports. |
| Year(s) Of Engagement Activity | 2020 |
| Description | STOR-i Research Topics Presentation |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | Local |
| Primary Audience | Postgraduate students |
| Results and Impact | Dr Shone (OR-MASTER Postdoctoral Researcher) delivered a presentation to postgraduate students enrolled on the STOR-i PhD programme at Lancaster University on "Slot Allocation and Stochastic Modelling at Airports", with particular reference to the activities of the OR-MASTER project. The students are expected to write academic reports on topics related to the application of statistics and/or operational research in industry, and it is hoped that they will consider the modelling and mitigation of congestion at airports as a potential subject for their reports. |
| Year(s) Of Engagement Activity | 2019 |
| Description | STOR-i Research Topics Presentation |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | Local |
| Primary Audience | Postgraduate students |
| Results and Impact | Professor Konstantinos G. Zografos delivered a presentation to postgraduate students enrolled on the STOR-i PhD programme at Lancaster University on "Mathematical Models and Algorithms for allocating Scarce Airports Resources", with particular reference to the activities of the OR-MASTER project. |
| Year(s) Of Engagement Activity | 2024 |
| Description | STOR-i Research Topics Presentation |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Postgraduate students |
| Results and Impact | Professor Konstantinos G. Zografos delivered a presentation to postgraduate students enrolled on the STOR-i PhD programme at Lancaster University on "Slot Allocation at Airports", with particular reference to the activities of the OR-MASTER project. The students are expected to write academic reports on topics related to the application of statistics and/or operational research in industry, and it is hoped that they will consider the modelling and mitigation of congestion at airports as a potential subject for their reports. |
| Year(s) Of Engagement Activity | 2021 |
| Description | Series of meetings between MIT Sloan School of Management researcher and the OR-MASTER team |
| Form Of Engagement Activity | Participation in an open day or visit at my research institution |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Study participants or study members |
| Results and Impact | Members of the OR-MASTER team participated in a series of meetings and discussions with an MIT researcher discussing issues relating to the allocation of scarce airport resources. |
| Year(s) Of Engagement Activity | 2020 |
| Description | Stephen Hammond's (NATS) Presentation titled 'The role of Air Traffic Control and the Application of OR techniques to Airport Optimisation' |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Mr. Steve Hammond gave a talk titled 'The role of Air Traffic Control and the Application of OR techniques to Airport Optimisation'. |
| Year(s) Of Engagement Activity | 2020 |
| URL | https://www.lancaster.ac.uk/lums/research/events/central-forum-march-the-role-of-air-traffic-control... |
| Description | StochMod2018 - the biennial meeting of the EURO Working Group on Stochastic Modelling, Lancaster, UK 13 to15 June 2018 |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Dr Rob Shone (OR-MASTER Research Associate) gave a presentation on "ADP strategies for resource allocation at congested airports" In modern transportation systems there exists a need to develop fast, responsive and easily adaptable methods for computing optimal (or near-optimal) solutions to problems in which resources must be allocated dynamically in order to satisfy time-varying demands from multiple sources. In this talk we consider the case of a single airport which, in response to a pre-determined schedule of arrivals and departures, must use its runway capacity efficiently in order to minimise an objective function based on weighted second moments of aircraft queue lengths. In keeping with a well-established convention in the literature, we model departures and arrivals as independent stochastic queues with time-varying arrival and service rates. Service times are assumed to follow Erlang distributions, whereas for the arrival distributions we consider two possible cases: non-homogeneous Poisson processes and pre-scheduled arrivals with random deviations. We discuss how to formulate the problem of optimising airport capacity usage as a Markov decision process (MDP), and introduce a "surrogate problem" which closely resembles our original problem during periods of heavy demand. We then show that, in our surrogate problem, the MDP value function can be represented as a quadratic function of the state variables, and use this principle to develop ADP strategies for optimising capacity utilisation. |
| Year(s) Of Engagement Activity | 2018 |
| URL | http://www.lancaster.ac.uk/staff/jacko/stochmod2018/ |
| Description | Stochastic Runway Scheduling using Simheuristics (4th IMA and OR Society Conference of Mathematics of Operational Research) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Other audiences |
| Results and Impact | Dr Robert Shone presented at the 4th IMA and OR Society Conference of Mathematics of Operational Research (2023). The presentation is a joint work between Robert Shone, Kevin Glazebrook, and Konstantinos G. Zografos (PI of OR-MASTER project). The presentation proposed a Stochastic Runway Scheduling using Simheuristics. |
| Year(s) Of Engagement Activity | 2023 |
| URL | https://cdn.ima.org.uk/wp/wp-content/uploads/2022/09/1-FINAL-19.04.23.pdf |
| Description | TRISTAN Symposium 2016 |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | The objective of this paper is develop and solve a new class of airport slot scheduling models that consider simultaneously slot scheduling and fairness objectives. A fairness metric for the slot scheduling problem is introduced. Two bi-objective formulations considering both fairness and efficiency are presented. The first one adopts schedule displacement to express scheduling efficiency, while the second one weights the displacement by aircraft size. Both models are solved via the e-constraint method using a row generation algorithm,. |
| Year(s) Of Engagement Activity | 2016 |
| URL | http://www.globaleventslist.elsevier.com/events/2016/06/tristan-2016/ |
| Description | TRISTAN X Conference June 2019 - Optimizing multi-level, multi-objective airport slot scheduling decsions |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | Fotis Katasigiannis (OR-MASTER PhD Student) presented a paper titled " Optimising multi-level, multi-objective airport slot scheduling decisions". This introduced a Tri-Objective Slot Allocation Model (TOSAM) with total displacement, maximum displacement and demand-based fairness considerations. The model was solved via a multi-level solution algorithm which considers the overall performance of the airport slot schedule and can provide insights on the trade-offs among various metrics of interest. Results from a real-world airport suggest that multi-level considerations improve slot scheduling quality and provide additional airport slot schedules. |
| Year(s) Of Engagement Activity | 2019 |
| URL | http://www.tristan2019.org/ |
| Description | Technology.org |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Media (as a channel to the public) |
| Results and Impact | The article "Lancaster experts to lead new drive to unlock airport capacity and tackle congestion" appeared on Technology.org |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://www.technology.org/2015/03/20/lancaster-experts-to-lead-new-drive-to-unlock-airport-capacity-... |
| Description | Towards A Unifying Framework For Modelling And Solving Large Scale Slot Allocation Problems at INFORMS 2021 Annual Meeting |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Other audiences |
| Results and Impact | David Torres Sanchez (OR-MASTER Senior Research Associate) gave a talk titled: 'Towards A Unifying Framework For Modelling And Solving Large Scale Slot Allocation Problems'. The presentation proposed a unified framework for solving large scale slot allocation problems with pre-defined priorities and capacity constraints. The problem consists of satisfying several operator requests for the use of the network capacity for some specified periods of time. Subject to capacity and priorities for different services, the framework may provide a network-wide schedule. Such problems can be found, for example, in the railway and airline scheduling process. A solution procedure to effectively schedule slots on a network is proposed. The presentation disseminated results from different case studies. |
| Year(s) Of Engagement Activity | 2021 |
| URL | https://cattendee.abstractsonline.com/meeting/10390/presentation/10878 |
| Description | Transport and Logistics Exchange, Lancaster University, England 31 October 2017 - Fairness in Slot Scheduling |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Postgraduate students |
| Results and Impact | In this talk Dr. Jamie Fairbrother (OR-MASTER Senior Research Associate) described a new approach to fairness in slot allocation which takes into account the whether demand for a slot is peak or off-peak. A characterisation of peak periods was given and then used to define a new fairness index, and numerical results demonstrating its superiority over a previous fairness index were presented. This was given at a weekly meeting of PhD students, and post-docs (14 people) who are members of the Centre for Transport and Logistics Research (CENTRAL). The talk increased the awareness of students regarding the application of mathematical modelling and optimization methods in solving complex real world problems, and stimulated their research interests in the area of aviation Operational Research. . |
| Year(s) Of Engagement Activity | 2017 |
| Description | airport-technology.com |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | The article "UK launches £2.8m project to address airport capacity congestion issues" appeared on airport-technology.com |
| Year(s) Of Engagement Activity | 2015 |
| URL | http://www.airport-technology.com/news/newsuk-launches-28m-project-to-address-airport-capacity-conge... |