Bi-level programming model for post-disaster emergency supplies scheduling with time windows and its algorithm Online publication date: Fri, 03-Dec-2021
by Fuyu Wang; Yan Li; Yan Li; Jingjing Chen
International Journal of Automation and Control (IJAAC), Vol. 16, No. 1, 2022
Abstract: Aiming at the emergency supplies scheduling problem in disaster situations, a bi-level programming model with time window constraints is built by considering the actual characteristics and demand of emergency material dispatching, with the minimum system response time as the upper objective and the minimum total system cost as the lower objective. According to the characteristics of mutual correlation and restriction between the upper and lower levels of the emergency supplies scheduling model, a two-stage heuristic algorithm is designed. At the first stage, the algorithm uses the clustering method for location-allocation and at the second stage uses the improved glowworm swarm optimisation algorithm for transportation route arrangement. Then, the simulation experiment is performed, which shows that the model and algorithm can effectively solve the post-disaster emergency supplies scheduling problem, and the designed algorithm has good performance and high computational efficiency.
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