An emergency dispatch model considering the urgency of the requirement for reliefs in different disaster areas

摘要

Purpose: Frequent sudden-onset disasters which have threatened the survival of human and\udthe development of society force the public to pay an increasing attention to emergency\udmanagement. A challenging task in the process of emergency management is emergency\uddispatch of reliefs. An emergency dispatch model considering the urgency of the requirement\udfor reliefs in different disaster areas is proposed in this paper to dispatch reliefs reasonably and\udreduce the effect of sudden-onset disasters.\udDesign/methodology/approach: Firstly, quantitative assessment on the urgency of the\udrequirement for reliefs in different disaster areas is done by an evaluation method based on\udFuzzy Comprehensive Evaluation and improved Evidence Reasoning which is proposed in this\udpaper. And then based the quantitative results, an emergency dispatch model aiming to\udminimize the response time, the distribution cost and the unsatisfied rate of the requirement\udfor reliefs is proposed, which reflects the requests of disaster areas under emergency, including\udthe urgency of requirement, the economy of distribution and the equity of allocation. Finally,\udthe Genetic Algorithm is improved based on the adaptive crossover and mutation probability\udfunction to solve the emergency dispatch model.\udFindings: A case that the Y hydraulic power enterprise carries on emergency dispatch of\udreliefs under continuous sudden-onset heavy rain is given to illustrate the availability of the emergency dispatch model proposed in this paper. The results show that the emergency\uddispatch model meets the distribution priority requirement of disaster area with the higher\udurgency, so that reliefs are supplied more timely.\udResearch limitations/implications: The emergency dispatch model faced to large scale\udsudden-onset disasters is complex. The quantity of reliefs that disaster area requires and the\udrunning time of vehicles are viewed as available information, and the problem that how to\udobtain the information is not considered.\udPractical implications: The emergency dispatch model considering the urgency of the\udrequirement for reliefs in different disaster areas is applicable to a realistic emergency dispatch\udof reliefs under sudden-onset disasters and the research results is the foundation of further\udresearch on the problem of emergency management.\udOriginality/value: This paper proposes emergency dispatch model considering the urgency of\udthe requirement for reliefs in different disaster areas which can meet the realistic requirement\udthat the disaster area with the higher urgency has an priority to obtain the reliefs and make\udreliefs be distributed timely.