高速公路货运车辆速度下限设定研究  

Research on Setting of Freeway Lower Velocity Limit for Trucks

作　　者：陈小鸿[1] 付强[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）》2007年第2期199-203,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)

摘　　要：在通过仿真方法分析货车速度对服务水平影响规律的基础上,以货车速度对客车速度边际影响等于1为判定条件,确定货车影响的关键速度.确定60 km.h-1作为双向四车道高速公路货车建议速度下限值.仿真验证表明,实施60 km.h-1速度下限后,客车运行车速可提高10 km.h-1,且能保证双向四车道高速公路在当前流量下服务水平不低于二级;未来流量增长至每小时3 000辆后,服务水平仍不低于三级.The influence of trucks＇ velocity on the Level of Service is studied on the basis of VISSIM with the criterion of the boundary influence of trucks＇ velocity on cars＇ equaling to one. Key velocity of trucks is obtained to ensure freeway in a better operation. The velocity of 60 km·h^-1 is proposed to be the lowest limit for freeway with at least two lanes in one direction. Results show that the car speed will be increased by 10 km·h^-1 or so when the 60 km·h^-1 speed limit for trucks is put into effect. The level of service is no less than two at present and will be no less than three in future even if the traffic flow increases to 3 000 veh·h^-1.

关 键 词：交通工程 货车影响 速度下限 微观仿真 

分 类 号：U491[交通运输工程—交通运输规划与管理]