基于车牌识别数据的行驶轨迹重构和排放测算

1)深圳大学土木与交通工程学院,广东深圳 518060; 2)深圳市都市交通规划设计研究院有限公司,广东深圳 518060; 3)深圳大学未来地下城市研究院,广东深圳 518060; 4)深圳职业技术学院汽车与交通学院,广东深圳 518055

交通运输系统工程; 柴油车; 轨迹重构; 车牌自动识别数据; 导航API; 排放测算; MOVES排放模型

Vehicle trajectory reconstruction and emission estimation based on license plate recognition data
HU Mingwei1, 3, WANG Shoufeng2, HUANG Wenke1, SHI Xiaolong1, HUANG Wenwei4, and WANG Tuo1

1)College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, P.R.China2)Shenzhen Urban Transport Planning & Design Institute, Shenzhen 518060, Guangdong Province, P.R.China3)Underground Polis Academy, Shenzhen University, Shenzhen 518060, Guangdong Province, P.R.China4)School of Automotive and Transportation Engineering, Shenzhen Polytechnic, Shenzhen 518055, Guangdong Province, P.R.China

transport system engineering; diesel vehicle; trajectory reconstruction; license plate automatic recognition; navigation application programming interfaces(API); emission estimation; motor vehicle emission simulator(MOVES)emission model

DOI: 10.3724/SP.J.1249.2020.02111

备注

随着特大城市的发展,柴油车等高排放车辆成为城市的主要移动污染源之一,对大气环境质量控制造成越来越大的压力.基于道路交通车辆的车牌自动识别数据集,从识别断面的车辆通过时空数据推算车辆的行驶轨迹,获取城市级别高排放车辆的热点行驶路径、出行特征及活动规律,为制定车辆减排政策(如高排放车辆的管控及低排放区划定等)提供定量方法和科学依据.提出基于地图应用程序开发接口(application programming interfaces, API)导航的车辆行驶轨迹重构方法,较为真实地还原车辆行驶路径,并结合移动源排放测算(motor vehicle emission simulator, MOVES)模型对行驶车辆的多种污染物排放进行估算.以中国深圳市运行的柴油车为研究对象,分析验证该方法的可行性及可靠性.结果表明,该方法可完整重构柴油车在深圳市的运行轨迹,并实现对排放的估算,为机动车污染物减排提供辅助决策支持.

With the rapid development of megacities, high emission vehicles such as diesel vehicles have become one of the main sources of mobile pollution in cities, which causes more and more pressure on the atmospheric environment. By exploiting automatic license plate recognition data set of road traffic vehicles, we propose a methodology to the vehicle trajectory reconstruction based on the map's real-time navigation application programming interfaces(API). Firstly, we establish the vehicle trajectory from the spatio-temporal data of vehicles in the recognition section. Then we obtain the hot routes, travel characteristics and activity rules of high emission vehicles in the city level. Finally, we combine the trajectory reconstruction results with the emission model of motor vehicle emission simulator(MOVES)to estimate the diesel vehicle emission. In the case study of Shenzhen, we analyze and verify the feasibility and reliability of this method. The experimental results show that the proposed method can reconstruct the trajectory of diesel vehicles in Shenzhen and achieve the estimation of emission, which can provide decision support for vehicle emission reduction.

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