理想条件下路网临界速度的研究  

Study of Critical Velocity under Ideal Condition of Road Network

作　　者：陈春妹[1] 任福田[1] 荣建[1] 

机构地区：[1]北京工业大学交通工程研究所,北京100022

出　　处：《广西交通科技》2002年第2期7-10,共4页Guangxi Communication Science & Technology

基　　金：北京市教育委员会科技发展计划项目 (P0 40 2 0 0 0 2 )

摘　　要：运用最优化和跟驰理论 ,确定了车辆稳定跟驰行驶速度与车辆在该状态下的车头间距和行驶时间等关系 ,建立了路网临界速度模型 ;同时应用该模型和利用先进的地理信息定位系统 (车载GPS)在北京市路网上采集的基础数据 。By use of the optimized traveling theory, the relationship is defined between the even vehicle traveling velocity and headway and traveling time under this condition, and afterwards, the model of critical speed for the road network is set up. Moreover, through the application of this model and the advanced GPS, the basic data is collected and the critical speed is therefore calculated out in conform with the reasonable capacity of Beijing road network.

关 键 词：路网容量 交通个体 车头间距 临界行驶速度 行驶时间 最优化 跟驰 

分 类 号：U412[交通运输工程—道路与铁道工程] U491.255