基于延误的公路施工区重型车辆影响规律  

Influence of Heavy Vehicles on Traffic Flow in Highway Work Zone Based on Delay Analysis

作　　者：林航飞[1] 付强[1] 张红军[1] 杨晓芳[2] 

机构地区：[1]同济大学交通工程系,上海200092 [2]上海理工大学交通工程系,上海200093

出　　处：《同济大学学报（自然科学版）》2008年第3期335-338,349,共5页Journal of Tongji University:Natural Science

基　　金：高等学校博士学科点专项科研基金资助项目(20040247021);广东省交通厅科技资助项目(2004-03)

摘　　要：大量低速重型车辆,给我国公路上车辆的运行带来了显著影响.当道路施工、养护或发生事故时,只剩一条车道,无法超车,低速重型车辆的影响加剧.利用波动理论,建立了施工区重型车辆影响下小汽车的行驶延误模型,对不同货车比例下,货车的影响机理和影响规律进行分析.研究表明,共有四个因素影响小汽车的行驶延误:流量、重型车辆比例、重型车辆速度和施工区长度;当重型车辆的影响独立时,其边际影响是一定的;不独立时,边际影响递减;当重型车辆比例很高从而其影响不再独立时,施工区长度的影响减小.研究成果可为公路管理部门制定施工和养护计划提供理论支持.The proportion of heavy vehicle is very high in China; it takes additional delay in a work zone especially when there is only one lane left. Kinematic wave theory was used in model building to study cars moving delay in a work zone and the influence of heavy vehicles. The result shows that there are four key factors contributing to the cars moving delay. The marginal influence of heavy vehicle is definite when the influence of heavy vehicle is independent and it will decrease when the influence of heavy vehicle interferes with each other. The influence of the work zone length is weakened when the proportion of heavy vehicle is so high that the influence is not independent.

关 键 词：重型车辆 施工区 延误 波动理论 

分 类 号：U491[交通运输工程—交通运输规划与管理]