基于数据的交叉口车辆排队状态感知方法研究  

Study on Vehicle Queuing State Perception Method at Intersection Based on Data

作　　者：施康 杨晓光[1] 王一喆 SHI Kang;YANG Xiao-guang;WANG Yi-zhe(Key Laboratory of Road and Traffic Engineering of Ministry of Education,Tongji University,Shanghai 201804,China;Anhui Chaoyuan Information Technology Co.,Ltd.,Hefei Anhui 230088,China)

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]安徽超远信息技术有限公司,安徽合肥230088

出　　处：《公路交通科技》2022年第1期114-119,共6页Journal of Highway and Transportation Research and Development

基　　金：国家重点研发计划项目(2018YFB1600603);国家自然科学基金项目(61773293)。

摘　　要：信号控制交叉口排队状态数据是交叉口交通优化设计与管理及控制的重要指标之一,也是非常直观和重要的交通特征数据,以往多采用模型或断面检测数据加以估计和计算,也有基于视频、红外、浮动车及多源数据的感知方法,受限于过强的理论模型假定,样本量分布随机不均,多源数据精度不够且分析困难,以及能见度等外界天气环境干扰影响,关于信号控制交叉口排队长度的科学感知方法仍有待进一步深入的研究。提出了一种基于微波雷达数据的信号交叉口排队状态感知方法。由于微波雷达传感器不受外界环境干扰且性能稳定,能够非常准确地检测车辆目标的时空参数数据且精度高、实时性强。该方法是在微波雷达传感器提供高质量参数数据基础上开展的交通排队状态感知方法,包括:微波雷达检测目标原理的研究、感知装置的布设和调校、现场静态数据的标定和测量、多元数据获取与计算分析、排队状态计算方法与模型,以及实际交叉口进行实地检验等。结果表明:该方法不仅可以有效地克服外界天气环境干扰影响,而且感知方法性能稳定,能够很好地适应多种不同应用场景;在不同应用场景下,感知的排队状态数据具备精度和准确率高等优点。因此,基于微波雷达数据的信号交叉口排队状态感知方法具有非常重要的推广应用价值。The data of queuing state at signalized intersections is one of the important indicators for traffic optimization design,management and control for intersections.It is also very intuitive and important traffic characteristic data.In the past,models or cross-section detection data were often used for estimation and calculation.There are also the perception methods based on video,infrared ray,floating car and multi-source data,which are limited by strong theoretical model assumptions,random and uneven sample size distribution,insufficient accuracy of multi-source data.It is difficult to analyze and is affected by the interference of external weather environment such as visibility.The scientific perception method of queue length at signalized intersection still needs to be further studied.A method for perceiving queuing status at signalized intersections based on microwave radar data is proposed.Because the microwave radar sensor is not disturbed by external environment and has stable performance,it can detect the spatiotemporal parameters of vehicle targets very accurately with high precision and strong real-time performance.This method is a traffic queuing state perception method based on the high-quality parameter data provided by microwave radar sensor,including:research on the principle of microwave radar detection of targets,layout and adjustment of sensing devices,calibration and measurement of on-site static data,multiple data acquisition and calculation analysis,queuing status calculation method and model,and field inspection at actual intersection,etc.The result shows that(1)this method not only can effectively overcome the influence of external weather environment,but also has stable performance and can adapt to different application scenarios;(2)in different application scenarios,the perceived queuing state data has the advantages of high accuracy.Therefore,the method for perceiving queuing status at signalized intersections based on microwave radar data n has very important promotion and application val

关 键 词：城市交通 排队状态 微波雷达 信号控制交叉口 交叉口排队数据 

分 类 号：U491.23[交通运输工程—交通运输规划与管理]