Integrated Disruption Management and Flight Planning to Trade Off Delays and Fuel Burn

Lavanya Marla (), Bo Vaaben () and Cynthia Barnhart ()
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Lavanya Marla: University of Illinois at Urbana–Champaign, Urbana, Illinois 61801
Bo Vaaben: Ops-Analytics, 3060 Espergaerde, Denmark
Cynthia Barnhart: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Transportation Science, 2017, vol. 51, issue 1, 88-111

Abstract: In this paper we present a novel approach addressing airline delays and recovery. Airline schedule recovery involves making decisions during operations to minimize additional operating costs while getting back on schedule as quickly as possible. The mechanisms used include aircraft swaps, flight cancellations, crew swaps, reserve crews, and passenger rebookings. In this context, we introduce another mechanism, namely flight planning that enables flight speed changes. Flight planning is the process of determining flight plan(s) specifying the route of a flight, its speed, and its associated fuel burn. Our key idea in integrating flight planning and disruption management is to adjust the speeds of flights during operations, trading off flying time (and along with it, block time) and fuel burn; in combination with existing mechanisms, such as flight holds. Our goal is striking the right balance of fuel costs and passenger-related delay costs incurred by the airline. We present both exact and approximate models for integrated aircraft and passenger recovery with flight planning. From computational experiments on data provided by a European airline, we estimate that the ability of our approach to control (decrease or increase) flying time by trading off with fuel burn, as well as to hold downstream flights, results in reductions in passenger disruptions by approximately 66%–83%, accompanied by small increases in fuel burn of 0.152%–0.155% and a total cost savings of approximately 5.7%–5.9% for the airline, may be achieved compared to baseline approaches typically used in practice. We discuss the relative benefits of two mechanisms studied—specifically, flight speed changes and intentionally holding flight departures, and show significant synergies in applying these mechanisms. The results, compared with recovery without integrated flight planning, are because of increased swap possibilities during recovery, decreased numbers of flight cancellations, and fewer disruptions to passengers.

Keywords: airline schedule recovery; flight planning; enhanced disruption management (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (13)

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