公路改、扩建施工区设施与减速特征关系研究  

Research on deceleration behavior of highway reconstruction and extension work zone

作　　者：梁健健 李晨新 魏田正 谢培[2] LIANG Jian-jian;LI Chen-xin;WEI Tian-zheng;XIE Pei(Guangxi Guihai Expressway Co.,Ltd.,Nanning 530000,China;School of Automobile,Chang’an University,Xi’an 710064,China)

机构地区：[1]广西桂海高速公路有限公司,广西南宁530000 [2]长安大学汽车学院,陕西西安710064

出　　处：《交通科学与工程》2020年第1期93-97,共5页Journal of Transport Science and Engineering

基　　金：国家重点研发计划项目(2018YFC0807500);国家自然科学基金资助项目(51878066)。

摘　　要：为研究高速公路改、扩建施工区减速行为与设施设置关系,以警告区限速标志类型与施工区间距为自变量,研究改、扩建施工区时平均减速度的变化规律。建立了高速公路改、扩建施工区驾驶模拟场景,并招募了30名不同驾驶经验的驾驶员开展驾驶模拟试验,采集了驾驶人行为数据信息等。利用多因素方差分析法,比较不同设施设置条件下驾驶人平均减速度的差异性,并建立相关模型。研究结果表明:单一限速标志情况下,5000 m施工区间距的平均减速度比2000 m的大;设置逐级限速标志的平均减速度比设置单个限速标志的更小;经验丰富驾驶员的减速过程更加平稳;交通标志数量对平均减速度的影响最大。In order to study the relationship between deceleration behavior and facility setting in the construction area of expressway reconstruction and expansion,the variation of average deceleration in the construction area of reconstruction and expansion was studied by taking the type of speed limit sign in the warning area and the distance between construction areas as independent variables.The driving simulation scene in the construction area of highway reconstruction and expansion was established,and 30 drivers with different driving experience were recruited to carry out driving simulation test,driver behavior data and information were also collected.The multi-factor analysis of variance(anova)was used to compare the difference of drivers’average deceleration under different facilities,and relevant models were established.The results showed that under a single speed limit sign,the spacing between the average deceleration of 5000 m construction areas was larger than the average deceleration of 2000 m construction areas.The average reduction speed of the step by step speed limit sign is smaller than that of the single speed limit sign.Experienced drivers decelerate more smoothly.The number of traffic signs had the greatest effect on the average deceleration.

关 键 词：交通安全 改、扩建施工区 驾驶模拟试验 车速 多元回归分析 

分 类 号：U415[交通运输工程—道路与铁道工程]