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Number of conflicts at the route intersection – minimum distance model

    Andrej Novak Affiliation
    ; Karel Havel Affiliation
    ; Peter Adamko Affiliation

Abstract

A conflict is an infringement of minimum separation between at least two aircraft. The model is based on these assumptions: aircraft fly on level straight line routes, only an infringement of the lateral separation is considered, deviations are excluded, aircraft at the same flight level fly the same average speed, and aircraft fly towards an intersection and may change direction after intersection. Hence, conflicts mainly occur owing to a loss of minimum separation between aircraft flying at the same flight level. Calculation of average number of potential conflicts is designated for long time interval; hence, aircraft velocity deviations are negligible. The mathematical model in this paper is intended to compare different alternatives of intersection configuration of air traffic services routes. The comparison is based on the results: an average number of potential conflicts per hour on intersection of routes, index of conflicts intensity, and intersection capacity.

Keyword : intersection, configuration, aircraft conflicts, horizontal separation, protected zone

How to Cite
Novak, A., Havel, K., & Adamko, P. (2019). Number of conflicts at the route intersection – minimum distance model. Aviation, 23(1), 1-6. https://doi.org/10.3846/aviation.2019.9746
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Apr 30, 2019
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This work is licensed under a Creative Commons Attribution 4.0 International License.

References

Babak, V., Kharchenko, V., & Vasylyev, V. (2007). Using generalized stochastic method to evaluate probability of conflict in controlled air traffic. Aviation, 11(2), 31-36. https://doi.org/10.3846/16487788.2007.9635958

Belle, A., & Sherry, L. (2011). Analysis of the contribution of flight plan route selection to delays and conflicts. In 2011 Integrated Communications, Navigation and Surveillance Conference: Renovating the Global Air Transportation System, Herndon, 10-12 May (pp. L11-L19). IEEE. https://doi.org/10.1109/ICNSURV.2011.5935338

Bugaj, M., Novák, A., & Beno, L. (2005). Application of RCM principles in the air operations. Communications – Scientific Letters of the Univesity of Zilina, 2, 20-62.

Havel, K., Kotas, J., Kulčák, L., Machytka, J., Nedelka, M., Tykal, M., & Vrbata, J. (1990). Air traffic control. Praha: NADAS.

Havel, K., & Husarčík, J. (1989). A theory of the tactical conflict prediction of a pair of aircraft. The Journal of Navigation, 42(3), 417-429. https://doi.org/10.1017/S0373463300014715

ICAO. (2007). Air traffic management (Doc 4444, Code 7700, 15th ed.). Retrieved from https://aim.lps.sk/web/index.php?fn=206&lng=sk&sess=8BdpcczbzfRnAzmzgZOI9Hz5bT5dqSrVICCIIGDF

ICAO. (2016). Air navigation report. Retrieved from https://www.icao.int/airnavigation/Documents/ICAO_AN%202016_final_19July.pdf

Netjasov, F., & Babić, O. (2013). Framework for airspace planning and design based on conflict risk assessment. Part 3: Conflict risk assessment model for airspace operational and current day planning. Transportation Research Part C: Emerging Technologies, 32, 31-47. https://doi.org/10.1016/j.trc.2013.04.002

Schmidt, D. K. (1977). On the conflict frequency at air route intersections. Transportation Research, 11(5), 351-355. https://doi.org/10.1016/0041-1647(77)90045-4