Evacuation Network Optimization Model with Lane-Based Reversal and Routing

Abstract EN

Sometimes, the evacuation measure may seem to be the best choice as an emergency response.

To enable an efficiency evacuation, a network optimization model which integrates lane-based reversal design and routing with intersection crossing conflict elimination for evacuation is constructed.

The proposed bilevel model minimizes the total evacuation time to leave the evacuation zone.

A tabu search algorithm is applied to find an optimal lane reversal plan in the upper-level.

The lower-level utilizes a simulated annealing algorithm to get two types of “a single arc for an intersection approach” and “multiple arcs for an intersection approach” lane-based route plans with intersection crossing conflict elimination.

An experiment of a nine-intersection evacuation zone illustrates the validity of the model and the algorithm.

A field case with network topology of Jianye District around the Nanjing Olympics Sports Center is studied to show the applicability of this algorithm.