Deconstructing Delay Dynamics
نویسندگان
چکیده
This paper develops and analyzes a simplified model of the dynamics of delay propagation in air traffic networks. The proposed model considers the redistribution of delays by accounting for aircraft flows between airports, the persistence of delays at an airport, the mitigation of delays due to slacks or buffers in flight schedules, and inputs such as sudden impulsive disruptions or sustained impacts due to longer duration traffic management initiatives. Using inter-airport traffic flows from operational data, different properties of the model are studied, including the resilience of different airports (as measured by the length of time before delays mitigate after a disruption), the amount of delay induced by disruptions at a particular airport, and the number of airports that are impacted when a given airport experiences disruptions. These properties are evaluated for different levels of delay sustainment, and for different values of available slack in schedules. Keywordsdelay propagation; network modeling; system perfor-
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