基于轨迹数据的交叉口新能源汽车加速特征分析  

Analysis of Acceleration Characteristics of New Energy Vehicles at Intersections Based on Trajectory Data

作　　者：冯宇萱 鲁子敬 王为民 杨可元 刘晨辉 FENG Yuxuan;LU Zijing;WANG Weimin;YANG Keyuan;LIU Chenhui(College of Civil Engineering,Hunan University,Changsha Hunan 410082,China;Chongqing Institute of Quality and Standardization,Chongqing 400020,China;College of Electrical and Information Engineering,Hunan University,Changsha Hunan 410082,China;Research Institute of Hunan University in Chongqing,Chongqing 401151,China;Transportation Research Center,Hunan University,Changsha Hunan 410082,China)

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]重庆市质量与标准化研究院,重庆400020 [3]湖南大学电气与信息工程学院,湖南长沙410082 [4]湖南大学重庆研究院,重庆401151 [5]湖南大学综合交通研究中心,湖南长沙410082

出　　处：《安全》2025年第3期97-104,共8页Safety & Security

基　　金：重庆市市场监督管理局科技项目(CQSJKJDW2023018);中央高校基本科研业务费专项资金项目(531118010636)。

摘　　要：为研究新能源汽车的加速特征,通过无人机与摄像机同步拍摄采集车辆运行轨迹,对985辆新能源汽车和2796辆燃油汽车直行通过丁字路口的轨迹数据进行对比分析。结果显示:停车起步情况下,两者速度不存在显著差异,但新能源汽车平均加速度为1.709 m/s^(2),显著高于燃油汽车的1.393 m/s^(2);正常通行情况下,两者通行速度与加速度均无显著差异,但新能源汽车加速通过停车线的比例为62.3%,高于燃油汽车的56.1%;两者的车头时距与车头间距均无显著差异,车头间距主要集中于10~30 m,峰值出现在20 m附近。这表明较大的起步加速度使新能源汽车通过交叉路口时,对周围道路使用者的潜在危险更高。研究成果可为新能源车企开发汽车产品、监管部门制定交通安全法规等提供技术支持。To investigate the acceleration characteristics of new energy vehicles,this study utilized synchronized drone and camera footage to capture vehicle trajectories.A comparative analysis was conducted on the trajectory data of 985 new energy vehicles and 2,796 fuel-powered vehicles as they passed straight through T-junctions.The results showed that there was no significant difference in speed between the two vehicles when starting.However,the average acceleration of new energy vehicles is 1.709 m/s^(2),which is significantly higher than that of fuel-powered vehicles at 1.393 m/s^(2).Under normal driving conditions,there is no significant difference in speed and acceleration between the two vehicles,but the proportion of new energy vehicles accelerating through the parking line is 62.3%,which is higher than that of fuel vehicles at 56.1%;There is no significant difference in the headway and distance between the two,with the headway mainly concentrated between 10-30 m and the peak appearing around 20 m.This indicates that larger starting acceleration poses a higher potential danger to surrounding road users when new energy vehicles pass through intersections.The research results can provide technical support for new energy vehicle companies to develop automotive products and regulatory authorities to formulate traffic safety regulations.

关 键 词：交通安全 新能源汽车 驾驶行为 轨迹数据 加速特征 

分 类 号：X951[环境科学与工程—安全科学] U491.31[交通运输工程—交通运输规划与管理]