摘要
为明确迂回式立交匝道内行驶速度变化模式以及特征,通过开展实车路试获取了自然驾驶状态下的车辆运行数据,使用Mobileye 630采集了33名驾驶员在4条迂回式立交匝道的连续行驶速度,分析了迂回式匝道的速度变化模式、分位值特性以及不同性别、不同风格驾驶员之间行驶速度的差异性,明确了迂回式匝道的速度特征。结果表明:小客车在迂回式匝道的行驶速度变化模式表现为入弯减速、稳定行驶、出弯加速三个阶段,运行速度的离散性随着道路曲率半径增大而增大;速度最低点分布在整个圆曲线段,减速长度与减速终点距离成正相关关系;男性驾驶员在小半径匝道的行驶速度明显高于女性驾驶员;驾驶风格对行驶速度的影响与迂回式匝道线形组合有关;行驶速度值随着匝道半径增大而增加。研究结果可以为匝道几何线形设计和交通运行管理提供科学依据。
In order to explore the variation pattern and characteristics of speed on the detour ramps,operating data of the cars under natural driving condition were obtained through the field operational test,and 33 participants’speed data were collected using Mobileye 630 in four detour type interchange ramps.Furthermore,based on the test data,the speed mode,the quantile value characteristics,and the speed difference of different gender drivers and styles were analyzed on detour type ramps.The results show that on the detour ramp,the speed changes in three stages:deceleration in turn,stable driving and acceleration out of turn.The dispersion of speed increases with the increase of the radius of road curvature.The lowest point of velocity is distributed in the whole circular curve,and the deceleration length is positively correlated with the distance of deceleration terminal.The speed of male drivers on the detour ramp with a small radius is significantly higher than that of female drivers.The effect of driving style on speed is related to the alignment combination of detour ramp.The amplitude of detour ramp speed increases with the increase of ramp radius.The research results can provide a scientific basis for the geometric alignment design of ramp and traffic operation management.
作者
陈正欢
刘俊
张河山
林伟
徐进
CHEN Zheng-huan;LIU Jun;ZHANG He-shan;LIN Wei;XU Jin(School of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China;Chongqing Rail Transit (Group) Co., Ltd., Chongqing 401120, China;Chongqing City Transportation Development & Investment Group Co., Ltd., Chongqing 404100, China;Chongqing Key Laboratory of “Human-Vehicle-Road” Cooperation and Safety for Mountain Complex Environment,Chongqing Jiaotong University, Chongqing 400074, China)
出处
《科学技术与工程》
北大核心
2022年第4期1669-1677,共9页
Science Technology and Engineering
基金
国家自然科学基金面上项目(51678099)
重庆市研究生导师团队建设项目(JDDSTD2018007)
重庆市技术创新与应用发展项目(cstc2021ycjh-bgzxm0338)。
关键词
道路工程
实车试验
迂回式匝道
行驶特征
运行速度
road engineering
field operational test
detour ramp
driving characteristics
operating speed
