Optimal Location of Emergency Facility Sites for Railway Dangerous Goods Transportation under Uncertain Conditions

Abstract

Railroad accidents involving dangerous goods (DG) need to be rescued quickly due to their hazardous nature. This paper proposes an emergency facility location model for the railway dangerous-goods transportation problem (RDGT-EFLP, abbreviated as EFLP). The EFLP model is based on an ellipsoidal robust model that introduces a robust control safety parameter Ω to measure the risk preferences of decision makers and limits the range of uncertain demand, the range of uncertain service and the range of safety parameters to find the solution for siting emergency facilities, when the time and location of emergency events are unknown. The model is solved using a genetic algorithm (GA) and real data after abstraction. Finally, a comprehensive analysis of the solution results under different maximum overcoverages illustrates the feasibility and effectiveness of the model.

Research on site selection of emergency material reserve based on set pair analysis and TOPSIS integration method: A case study of Hebei Province, China

“…Aiming at the multi-objective programming model, Wang et al [10] established a mixed integer model of uncertainty, and designed a location problem that could be solved by combining particle swarm optimization algorithm and variable domain search algorithm with factors such as time cost, penalty cost of lack of resources, alternative sources of resources from suppliers and emergency warehouses, different modes of transportation and multiple resource types. In addition, Wang et al [11] designed a robust model based on ellipsoid. In the uncertain demand range, uncertain service range and security parameter range, the emergency location solution is found, and the genetic algorithm is used to solve it.…”

Special Issue: Intelligent Systems for Railway Infrastructure

“…This study is crucial in the context of environmental sustainability and provides insights into reducing emissions, making urban rail transit more eco-friendly. Wang et al [5] addressed the critical issue of safety in railway transportation, particularly regarding the transport of dangerous goods. The study focused on identifying optimal locations for emergency facilities to effectively respond to uncertain conditions, significantly contributing to the mitigation of potential risks.…”