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The evaluation of Istanbul airspace design from the perspective of complexity and safety

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  • Mutlu, Arife Aycan

Abstract

The approach, descent, and climb phases of flights in terminal maneuvering areas (TMAs) are some of the critical parts of a flight in which more than half of accidents happen. For an ANSP (Air Navigation Service Provider), to fulfill the responsibility with a high-quality service degree while maintaining safety, these difficult areas should be designed carefully and equipped with the most efficient procedures. Point merge system (PMS), which is defined as a systemized method for sequencing arrival flows, is launched in Istanbul's new TMA (LTFM TMA) being designed by DHMI (Devlet Hava Meydanları Isletmesi) to improve safety and efficiency. In this paper, the airspace complexity is based on adjusted density and structural index, and safety indicators. To investigate the effects of the radical changes made in re-organized LTFM TMA on the safety issue in comparison with the previous terminal maneuvering area, LTBA TMA, six months' data consisting of 75215 arrival and departure flights are used. Results reflect that the LTFM TMA, one of the world's busiest terminal airspaces, has statistically significantly lower scores in terms of conflict numbers per aircraft, complexity metrics, adjusted density, the hour of interactions, and flight hours than LTBA TMA. Lastly, there exists no longer a significant relationship between conflict types and complexity after launching the new design and structure.

Suggested Citation

  • Mutlu, Arife Aycan, 2021. "The evaluation of Istanbul airspace design from the perspective of complexity and safety," Journal of Air Transport Management, Elsevier, vol. 97(C).
    • Handle: RePEc:eee:jaitra:v:97:y:2021:i:c:s0969699721001198
    DOI: 10.1016/j.jairtraman.2021.102137
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