螺旋立交匝道行驶舒适性与危险驾驶行为  

Driving comfort and dangerous driving behavior on helical ramp of interchange

作　　者：陈正欢 刘俊 张河山[1] 林伟 徐进[1,4] CHEN Zhenghuan;LIU Jun;ZHANG Heshan;LIN Wei;XU Jin(College of Traffic and 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)

机构地区：[1]重庆交通大学交通运输学院,重庆400074 [2]重庆轨道交通(集团)有限公司,重庆401120 [3]重庆城市交通开发投资(集团)有限公司,重庆404100 [4]山区复杂道路环境“人-车-路”协同与安全重庆市重点实验室(重庆交通大学),重庆400074

出　　处：《中国科技论文》2022年第10期1120-1127,共8页China Sciencepaper

基　　金：国家自然科学基金资助项目(51678099);重庆市研究生导师团队建设项目(JDDSTD2018007);重庆市教育委员会科学技术研究项目(KJZD-K201900703)。

摘　　要：为研究高悬空螺旋立交匝道的行驶舒适性与危险驾驶行为,在重庆市苏家坝立交开展自然驾驶试验,采集了小客车在螺旋匝道的行驶速度、纵/横向加速度变化数据,分析了纵/横向加速度峰值区间分布、特征分位值等特性,并对螺旋匝道的行驶舒适性进行了评价,同时引入G-G图方法对危险驾驶行为进行了辨识。结果表明:被试的制动减速度分布区间大于行车加速度;横向加速度基本保持恒定,上行匝道横向加速度的离散性大于下行匝道;螺旋匝道的纵向行驶舒适性较好,横向行驶舒适性较差,在横向上高达72.4%的被试感受到了不舒适;危险驾驶行为与横向加速度呈正相关关系。研究结果可为匝道线形设计、运行速度模型标定和交通运行管理提供依据。In order to study the driving comfort and dangerous driving behavior of the high and overhead helical interchange ramp,the speed and longitudinal/lateral acceleration data of the passenger car were collected through the field operational test on Sujiaba interchange in Chongqing.The peak interval distribution,characteristic quantile value and other characteristics of the longitudinal/lateral acceleration were analyzed and used to evaluate the driving comfort of helical ramps.At the same time,the G-G diagram method was introduced to identify dangerous driving behaviors.The results show that the driver’s braking deceleration distribution interval is greater than the driving acceleration.The lateral acceleration remains basically constant,and the dispersion of the lateral acceleration of the upward ramp is greater than that of the downward ramp.The longitudinal driving comfort of the helical ramp is good,while the lateral driving comfort is poor,and up to 72.4%of the drivers feel uncomfortable in the lateral direction.Dangerous driving behavior is positively correlated with lateral acceleration.The research results can provide basis for ramp alignment design,operating speed model calibration and traffic operation management.

关 键 词：互通立交 实车试验 螺旋匝道 横(纵)向加速度 危险驾驶行为 

分 类 号：U491.2[交通运输工程—交通运输规划与管理]