2026-04-14T03:52:58Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1100512025-07-17T07:16:47Zcom_2072_1033col_2072_452950

urn:hdl:2117/110051 Including linear holding in air traffic flow management for flexible delay handling Xu, Yan Prats Menéndez, Xavier Àrees temàtiques de la UPC::Aeronàutica i espai Ait traffic control linear holding speed reduction trajectory optimization delay assignment air traffic flow management Trànsit aeri -- Control This paper introduces a strategy to include linear holding into air traffic flow management (ATFM) initiatives, together with the commonly used ground holding and airborne holding measures. In this way, ATFM performance can be improved when handling delay assignment with uncertainty. Firstly, a trajectory generation method is presented, aiming at computing, per flight, the maximum linear holding realizable using the same fuel as the original nominal flight. This information is assumed to be computed and shared by the different airlines and it is then used to build a network ATFM model to optimally assign ATFM delays, in the scope of trajectory based operations. Hence, the best distribution of delay is optimized at given positions along the flight trajectory (combining the three holding practices together) and taking into account the cost of delay, especially in the fuel consumption. The problem is formulated as a mixed integer linear programming and solved with a commercially-of-the-shelf solver. An illustrative example is given, showing that under the circumstance of capacity recovered ahead of schedule, including linear holding contributes to a notable delay reduction compared to the case where only ground and/or airborne holding apply. Peer Reviewed Postprint (published version) 2017 Conference report http://www.atmseminarus.org/seminarContent/seminar12/papers/12th_ATM_RD_Seminar_paper_139.pdf Open Access