A Transit-Based Evacuation Model for Metropolitan Areas
A Transit-Based Evacuation Model for Metropolitan Areas
复制标题
大都市地区基于交通的疏散模型
DOI：
10.5038/2375-0901.17.3.9
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
G. Chang
中科院分区：
文献类型：
--
作者：
Xin Zhang;G. Chang
本文提出了一个决策支持模型，发生在大都市地区的基于交通的疏散规划。该模型由两个模块组成，以顺序的方式执行：第一个处理确定从候选位置的基础上的疏散人员的空间分布，和第二个计划的路线和时间表为每个过境车辆的车辆可用性和疏散需求模式。首先采用重叠聚类算法将需求分配到相邻的几个簇中。然后，提出了一个优化模型，以分配可用的巴士从仓库之间的接送地点和不同的安全目的地和公共避难所的集合疏散。基于巴尔的摩市的一个数值例子表明，所提出的模型的适用性和优势相比，国家的最先进的模型过于严格和不切实际的假设。
This paper develops a decision-support model for transit-based evacuation planning occurring in metropolitan areas. The model consists of two modules executed in a sequential manner: the first deals with determining pick-up locations from candidate locations based on the spatial distribution of the evacuees, and the second plans for the route and schedule for each transit vehicle based on vehicle availability and evacuee demand pattern. An overlapping clustering algorithm is first adopted in allocating the demands to several nearby clusters. Then, an optimization model is proposed to allocate available buses from the depots to transport the assembled evacuees between the pick-up locations and different safety destinations and public shelters. A numerical example based on the city of Baltimore demonstrates the applicability of the proposed model and the advantages compared to state-of-the-art models with overly strict and unrealistic assumptions.