摘要
随着城市化进程的深入,建筑物结构的复杂程度及人员密度不断提高,室内场所人员的应急疏散成为一个重要的研究课题。已有的分阶段性疏散算法能够接近理论上的最短疏散时间,保证所有人员的疏散路线都是最短路径,并且可以有效避免拥堵,但其仅适用于道路网络。本文从使其适应室内建模及大量疏散人员的角度出发,对该算法进行改进,由单层单出口道路网络改进为多层多出口的室内空间网络,并以实际案例进行验证并同时模拟疏散过程。结果显示,该方法能有效缩短疏散时间并避免拥堵,达到安全快速疏散的目的,可以为有关部门在规划或救灾中提供决策支持。
With the deepening of the urbanization process,the complexity of the building structure and personnel density keeps increasing.Therefore,how to provide effective emergency evacuation solutions for indoor staff becomes an important research topic.The existing staged evacuation algorithms approximate the shortest evacuation time in theory,and these algorithms can ensure that the evacuation routes of all the people are the shortest and congestions can be avoided effectively in the road network.With the perspective of modeling indoor environment and evacuating large number of evacuees,this paper improves existing methods from the road network with single layer and single exit to the indoor spatial network with multilayer and multi-exit.A case is adopted to validate these methods,and a simulation program is developed for visualizing the evacuation process.The result demonstrates that the employed algorithm can shorten the evacuation time effectively,as well as avoid congestion,and achieve the goal to evacuate safely and quickly.It is able to provide decision support for authorities in the disaster prevention planning and disaster relief.
出处
《遥感信息》
CSCD
2013年第6期116-120,124,共6页
Remote Sensing Information
基金
国家自然科学基金(J0730534
41271441
51178236)
华东师范大学创新研究基金(239201278220056)
上海市自然科学基金(11ZR1410100)
国家高技术研究发展计划专项研究基金(2013AA122302)
关键词
应急疏散
模拟
室内建模
疏散算法
emergency evacuation
simulation
indoor model
evacuation algorithm
