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Impact of multi-criteria optimized trajectories on European airline efficiency, safety and airspace demand

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  • Rosenow, Judith
  • Fricke, Hartmut

Abstract

Today the European airspace is facing multiple capacity constraints which are regulating demand during busy traffic periods of the day. These capacity limits cause inefficiencies in flight and airport ground handling. Current market forecasts predict an annual growth in passenger air traffic demand between 4.5 percent and 4.8 percent. This growth will be realized by an increasing number of aircraft movements reflected in an expected annual growth of jet airplanes by 3.3 percent with a negative impact on airspace capacity. To better manage the rare airspace capacity, the Single European Sky ATM Research (SESAR) and the Next Generation Air Transportation System (NextGen) program suggest free route airspaces, a Performance Based Navigation (PBN) and harmonized airspace structures as efficient concepts of improvement in air traffic efficiency. Beside today's minimum fuel and time objectives, a growing public awareness of the anthropogenic environmental impact necessitates further functions for flight planning and execution. Additionally, today's high safety standards must not be negatively influenced by the introduction of free route airspaces. In this paper, we present a trajectory calculation model capable of exploiting a 4D free route optimization potential while considering the divergent targets of safety, efficiency and environmental compatibility. In particular, the environmental effects of condensation trails depending on the time of the day are carefully considered. To further estimate the impact of free routes on airspace demand and on safety issues, the model is implemented in the simulation environment TOMATO, and the European flight intentions have been optimized for an entire day based on departure airports, arrival airports and original departure times July 2016. The resulting trajectories are evaluated against the number, location and duration of separation infringements. Despite constantly changing air speeds and cruising altitudes induced by the optimization target functions, the number and duration of separation infringements could be reduced by 30% due to optimized lateral and vertical trajectories. The results of this case study show a high potential for an increased airspace capacity under free routing conditions. Furthermore, fuel burn (20%) and airline direct operational costs (40%) could be significantly reduced.

Suggested Citation

  • Rosenow, Judith & Fricke, Hartmut, 2019. "Impact of multi-criteria optimized trajectories on European airline efficiency, safety and airspace demand," Journal of Air Transport Management, Elsevier, vol. 78(C), pages 133-143.
    • Handle: RePEc:eee:jaitra:v:78:y:2019:i:c:p:133-143
    DOI: 10.1016/j.jairtraman.2019.01.001
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    Citations

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    Cited by:

    1. Rocío Jáuregui González, 2024. "Optimising Air Traffic Management in Europe by the introduction of the Single European Sky," Cognitive Sustainability, Cognitive Sustainability Ltd., vol. 3(2), pages 24-35, June.
    2. Chiambaretto, Paul & Mayenc, Elodie & Chappert, Hervé & Engsig, Juliane & Fernandez, Anne-Sophie & Le Roy, Frédéric, 2021. "Where does flygskam come from? The role of citizens’ lack of knowledge of the environmental impact of air transport in explaining the development of flight shame," Journal of Air Transport Management, Elsevier, vol. 93(C).
    3. Yakath Ali, Nurul Syuhadah & Yu, Chunyan & See, Kok Fong, 2021. "Four decades of airline productivity and efficiency studies: A review and bibliometric analysis," Journal of Air Transport Management, Elsevier, vol. 96(C).
    4. Zhu, Xinting & Hong, Ning & He, Fang & Lin, Yu & Li, Lishuai & Fu, Xiaowen, 2023. "Predicting aircraft trajectory uncertainties for terminal airspace design evaluation," Journal of Air Transport Management, Elsevier, vol. 113(C).
    5. See, Kok Fong & Rashid, Azwan Abdul & Yu, Ming-Miin, 2024. "Measuring the network capacity utilization, energy consumption and environmental inefficiency of global airlines," Energy Economics, Elsevier, vol. 132(C).
    6. Künnen, Jan-Rasmus & Strauss, Arne K. & Ivanov, Nikola & Jovanović, Radosav & Fichert, Frank, 2023. "Leveraging demand-capacity balancing to reduce air traffic emissions and improve overall network performance," Transportation Research Part A: Policy and Practice, Elsevier, vol. 174(C).
    7. Dominik Punda & Malgorzata Jasiulewicz-Kaczmarek & Jacek Dziwulski, 2021. "Economization Methods Used by Low-Cost Airlines – An Overview," European Research Studies Journal, European Research Studies Journal, vol. 0(Special 2), pages 301-310.

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