灾变事件下高速公路管理单元的行程时间研究  

Investigation into Travel Time of Management Unit of Expressway in Disastrous Events

作　　者：阎莹[1] 王晓飞[2] 

机构地区：[1]长安大学汽车运输安全保障技术交通行业重点实验室,陕西西安710064 [2]华南理工大学土木与交通学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2015年第12期99-105,113,共8页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51308059;51408229);中国博士后科学基金资助项目(2014M552399);国家科技支撑计划项目(2014BAH23F01-1);长安大学中央高校基本科研业务费专项资金资助项目(310822152007)~~

摘　　要：为有效服务于灾变事件下高速公路通道路网的路径诱导和控制管理,提出了路网中管理单元的划分方法;针对未发生灾变事件的管理单元,考虑管理单元长度、平均车速以及实时交通密度的影响,建立行程时间特性函数;结合发生灾变事件时管理单元的排队-消散特征,利用流量、密度关系模型确定事件持续时间和消散时刻,构建基于波动理论的事发管理单元行程时间模型;以实时安全可靠度作为路阻函数对模型进行了修正,最后通过实例验证了计算模型的有效性.In order to effectively serve the route guidance and control management of the expressway corridor network in disastrous events,a method to divide the management unit of road networks is put forward. For the management unit with no disastrous events involved,a travel time characteristic function is established by taking into account the influences of the management unit length,the average speed and the real-time traffic density. By combining the queuing and dissipating characteristics of the management units involving disastrous events and by using the flow and density relationship model,the duration time and dissipation time of incidents are determined,and a travel time calculation model of incident management units is constructed based on the wave theory. Then,the proposed model is modified by taking the real-time safety reliability as a road resistance function. Finally,the effectiveness of the constructed model is verified by an example.

关 键 词：灾变事件 高速公路通道路网 管理单元 行程时间 波动分析 

分 类 号：U412.3[交通运输工程—道路与铁道工程]