摘要
山区路网的连通问题加剧了灾害性事件所造成的影响程度。突发事件下交通路径部分中断,路网中剩余路径在应急疏散中承担着重要作用,便于分析路网中剩余路径的连通可靠性,提出了"疏散连通度"(CREE)的概念,根据山区路网特征,分析了多节点并行路径、多路段串行路径的疏散连通可靠性。针对山区路网现状,提出了山区路网连通性能的改善措施。
A problem concerning the connectivity of the mountainous road network aggravates severity of damage which the calamity events caused.Part of traffic pathways are blocked under disaster condition,residual pathways undertake function of emergency evacuation.A concept of ＂connectivity reliability of emergency evacuation＂（CREE） is introduced in order to illuminates conveniently connectivity reliability of residual pathways.According to the unique characteristic of the mountainous road network,the article analyzes CREE of multi-node parallel pathways and multi-branch tandem pathways. In addition, some improvement measures are provided for current mountainous road network.
出处
《公路工程》
2009年第5期29-32,45,共5页
Highway Engineering
基金
西部交通建设科技基金资助项目(20043182233307)
关键词
山区路网
应急疏散
连通性
改善措施
立体交通
mountainous road network
emergency evacuation
connectivity
improvement measures
stereo traffic
