[1]徐进,崔强,常旭,等.苜蓿叶形互通立交进/出口的纵向驾驶行为特征[J].东南大学学报(自然科学版),2019,49(6):1205-1214.[doi:10.3969/j.issn.1001-0505.2019.06.026]
 Xu Jin,Cui Qiang,Chang Xu,et al.Longitudinal driving behavior characteristics at approaching/departing areas of clover leaf interchange[J].Journal of Southeast University (Natural Science Edition),2019,49(6):1205-1214.[doi:10.3969/j.issn.1001-0505.2019.06.026]
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苜蓿叶形互通立交进/出口的纵向驾驶行为特征()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
49
期数:
2019年第6期
页码:
1205-1214
栏目:
交通运输工程
出版日期:
2019-11-20

文章信息/Info

Title:
Longitudinal driving behavior characteristics at approaching/departing areas of clover leaf interchange
作者:
徐进1崔强2常旭3符经厚1吴国雄4
1重庆交通大学山区复杂道路环境“人-车-路”协同与安全重庆市重点实验室, 重庆 400074; 2林同棪国际工程咨询(中国)有限公司, 重庆 401147; 3沈阳市交通运输事务服务与行政执法中心, 沈阳 110004; 4重庆建筑工程职业学院土木工程系, 重庆 400072
Author(s):
Xu Jin1 Cui Qiang2 Chang Xu3 Fu Jinghou1 Wu Guoxiong4
1Chongqing Key Laboratory of “Human-Vehicle-Road” Cooperation and Safety for Mountain Complex Environment, Chongqing Jiaotong University, Chongqing 400074, China
2T. Y. Lin International Engineering Consulting(China)Co., Ltd., Chongqing 401147, China
3Center of Administrative Affairs and Law Enforcement of Shenyang Transportation, Shenyang 110004, China
4Department of Civil Engineering, Chongqing Jianzhu College, Chongqing 400072, China
关键词:
互通立交 环形匝道 变速车道 驾驶行为 自然驾驶
Keywords:
interchange loop ramp speed change lane driving behavior natural driving
分类号:
U412.35;U491.25
DOI:
10.3969/j.issn.1001-0505.2019.06.026
摘要:
为明确苜蓿叶形互通立交进/出口的车辆运行过程,修正驾驶行为假定,在3座立交上开展了实车驾驶试验.利用车载航姿测量系统采集了自然驾驶状态下的小客车连续行驶速度和加速度数据,基于行驶速度变化特征将环形匝道连续行驶过程划分成了5个阶段,分析了立交进/出口区域的纵向驾驶行为特征,确定了减速长度和加速长度的起/止点分布.结果表明:在立交出口,第85百分位减速起点位于交织段,终点位于分流点之前,还有不低于15%的减速行为在分流鼻后结束;在立交进口,驾驶人在合流点前观察主线交通流,普遍采取减速操作并持续至加速段、渐变段甚至交织段.不同驾驶人减速行为的分布区域存在交织,导致车辆间出现纵向冲突,增加了事故风险.立交出口的减速长度主要分布在30~60 m,第85百分位减速度为0.55 m/s2;入口区域的减速长度主要分布在20~60 m,第85百分位减速度为0.63 m/s2;匝道坡向对驾驶行为的影响不显著.
Abstract:
To clarify the driving behavior at approaching/departing areas of clover leaf interchange and modify the assumption of driving behavior, field driving tests were carried out on three clover leaf interchanges. The continuous speed and the acceleration of vehicles under natural driving habit were recorded by the on-board attitude measurement system. Based on the change characteristics of the driving speed, the continuous process of loop ramp travel was divided into five stages. The longitudinal driving characteristics at approaching/departing areas of interchange were analyzed, and the starting/ending points’ distributions of the deceleration length and the acceleration length were determined. The results show that at the departing area, the 85th percentile deceleration behavior starts at the weaving section and ends before the theoretical point, and more than 15% decelerations end after the physical gore. At the approaching area of the interchange, drivers observe traffic flow on the main line before the physical gore, generally decelerate their cars and continue to the acceleration section, taper and even the weaving section. Because of the interweaving of the distribution of different deceleration behaviors, there are conflicts between the vehicles, which increases the accident risk. The deceleration length at the departing area mainly ranges from 20 to 60 m, and the 85th deceleration rate is 0.55 m/s2. The deceleration length at the approaching area is mainly in the range of 30 to 70 m, and the 85th deceleration rate at the approaching area is 0.63 m/s2. The effect of the slope direction on the longitudinal driving behavior is not remarkable.

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备注/Memo

备注/Memo:
收稿日期: 2019-04-09.
作者简介: 徐进(1977—), 男, 博士, 教授, 博士生导师, yhnl_996699@163.com.
基金项目: 国家自然科学基金资助项目(51678099)、国家重点研发计划资助项目(2018YFB1600500).
引用本文: 徐进,崔强,常旭,等.苜蓿叶形互通立交进/出口的纵向驾驶行为特征[J].东南大学学报(自然科学版),2019,49(6):1205-1214. DOI:10.3969/j.issn.1001-0505.2019.06.026.
更新日期/Last Update: 2019-11-20