文献类型：期刊文献

英文题名：Route Optimization of Hazmat Transportation with Risk Equity and Time-Varying Risk

作者：Liu, Liping[1]; Gan, Xiaofeng[1]; Wu, Qing[1]; Sun, Zhengwei[1]

机构：[1] School of Business, East China University of Science and Technology, Shanghai, 200237, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220432792)

语种：英文

外文关键词：Genetic algorithms - Hazardous materials - Materials handling - Multiobjective optimization - Roads and streets - Transportation routes

摘要：This paper strives to the route optimization of hazmat for given probabilities and consequences. We not only determine the route with the least total risk and cost, but also pursue risk equity from the three perspectives of government, enterprises and society in the route optimization. Specifically, this paper reduces the population exposure risk differences among the road sections using threshold setting method and decreases the environmental risk differences by minimizing the risk compensation cost caused by the environmental risks of each road section exceeding the regional average risk. In addition, this paper analyzes the time-varying characteristics of risk and proposes a multi-objective route optimization model considering the minimization of total risk, cost and risk differences under time-varying conditions. Finally, the Ε-constraint method and improved genetic algorithm are used to solve the model, and the model is applied to a case study involving hazardous materials transportation route optimization of Shanghai, China. ? 2022, The Authors. All rights reserved.