Optimizing the use of public transit system during no-notice evacuation of urban areas

Authors:
Fatemeh Sayyady;Sandra D. Eksioglu
Affiliations:
North Carolina State University, Operations Research Graduate Program and Transportation Engineering, 208 Mann Hall, 2500 Stinson Drive, Raleigh, NC 27695, USA;Department of Industrial and Systems Engineering, Mississippi State University, 260Q McCain Engineering Building, Mississippi State, MS 39762, USA
Venue:
Computers and Industrial Engineering
Year:
2010

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Abstract

This paper proposes a methodology that can be used to design plans for evacuating transit-dependent citizens during no-notice disasters. A mixed-integer linear program is proposed to model the problem of finding optimal evacuation routes. The objective of the problem is to minimize the total evacuation time and the number of casualties, simultaneously. A traffic simulation package is used to explicitly incorporate the traffic flow dynamics into our model in order to generate solutions which are consistent with the dynamics of traffic network. Due to the long running time of CPLEX, a Tabu search algorithm is designed that finds evacuation routes for transit vehicles. Computational experiments demonstrate that the solutions found are of high-quality. Numerical experiments are conducted using the transportation network of the city of Forth Worth, TX to illustrate the modeling procedure and solution approach.