高速公路作业区汇入提示标志设置研究  

Study on Merging Sign Installation in Work Zone of the Highway

作　　者：周小焕[1] 郭忠印[1] 李国锋 李志勇[3] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]云南省公路开发投资有限责任公司,云南昆明650200 [3]湖南省交通科学研究院,湖南长沙410015

出　　处：《公路工程》2014年第4期44-47,共4页Highway Engineering

基　　金：云南省交通科技项目(1402012Y0004);西部交通建设科技项目(2009318785009)

摘　　要：考虑驾驶员在作业区上游过渡车道上行驶的过程中,车辆可汇入相邻车道的临界间隙的变化情况,减少作业区警告区末端由于汇入产生的冲突,提出设置汇入提示标志。利用M3分布模型与间隙接受理论,通过微分方法得到次车道上车辆的汇入概率模型。利用该概率模型,得到了在不同交通流状态下的汇入提示标志设置距离,同时对影响汇入概率的交通流参数进行了分析。计算结果表明:当自由流比例及车速均相同时,设置距离随交通流量增大而增大;而当车速与交通流量均相同时,设置距离随自由流比例增大而减小;当自由流比例与交通流量均相同时,设置距离随车速增大而增大。因此应结合作业区的限速值进行汇入提示标志的设置。Considering the vehicles＇ changeable critical headway when driving along the upper work zone, to reduce the conflicts, an installation of merging sign was proposed. A merging probability model was established by differential method according to the M3 model and headway acceptance theory. According to the model, the distance of merging sign was calculated in different traffic conditions. The influence of the merging probability by traffic parameters was analyzed, which indicated that the distance of merging sign had a positive correlation with the traffic volume; the distance of merging sign had a negative correlation with the proportion of free flow in the master lane; the distance of merging sign had a positive correlation with the vehicles＇ speed in the master lane; the establishing of merging sign should be combined with the speed limiting.

关 键 词：高速公路 作业区 间隙接受理论 汇入提示标志 

分 类 号：U415.12[交通运输工程—道路与铁道工程]