Airline and airport applications: simulation optimization of airline delay with constraints

Authors:
David W. Hutchison;Stacy D. Hill
Affiliations:
The Johns Hopkins University, Baltimore, MD;The Johns Hopkins University, Laurel, MD
Venue:
Proceedings of the 33nd conference on Winter simulation
Year:
2001

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Abstract

Air traffic delay is a growing and expensive problem. We investigated ways to reduce the cost and magnitude of such delays by trading gate delays against more expensive air delays. Air management and planning at this level can be facilitated by simulation, especially for strategies that alter controls on the system. We used the SIMMOD air traffic simulation to model the system. The objective was to determine a set of control measures that achieve the best system performance subject to restrictions on the decision parameters and selected system output measurements. Because observed system performance is "noisy," the problem is a constrained stochastic optimization problem with nonlinear objective function and nonlinear, stochastic constraints, which requires efficient stochastic optimization methods for its solution. Our approach used the simultaneous perturbation stochastic approximation (SPSA) algorithm with a penalty function to handle the difficult constraints.