The invention discloses an atmospheric pollutant concentration calculation method based on urban traffic simulation, and the method comprises the steps: firstly obtaining field road network data, and constructing a two-dimensional map according to the obtained data; acquiring urban motor vehicle data, and deploying the urban motor vehicle data on the generated map for traffic simulation; the method comprises the following steps: acquiring motor vehicle simulation data of traffic simulation and an average emission factor of local urban vehicles, calculating a road emission line source, calculating the pollutant concentration of a road by utilizing a diffusion model, and training by a classification model to obtain a correlation model of the pollutant concentration and urban air quality. And estimating the pollutant concentration of each road in the city by using the model according to the real vehicle data. According to the invention, the concentration of atmospheric pollutants generated by exhaust emission of motor vehicles under specific traffic conditions can be calculated through a traffic simulation system. And the adjustment of a traffic scheme can be guided according to the atmospheric pollutant concentration obtained through simulation, so that the atmospheric pollution degree caused by the exhaust emission of the motor vehicle is reduced to the maximum extent.

    本发明公开了一种基于城市交通仿真的大气污染物浓度计算方法,首先获取实地路网数据,根据获得的数据构建二维地图;获取城市机动车数据,部署在生成的地图上进行交通仿真;获取交通仿真的机动车仿真数据以及当地城市车辆的平均排放因子,计算出道路排放线源,利用扩散模型计算道路的污染物浓度,通过分类模型训练获得污染物浓度与城市空气质量的相关性模型,将真实的车辆数据使用模型估计出城市中各个道路的污染物浓度。本发明可以通过交通仿真系统计算特定交通路况下的由于机动车尾气排放而产生的大气污染物浓度。并且可以根据仿真获得的大气污染物浓度,指导交通方案的调整,以最大化降低机动车尾气排放导致的大气污染程度。


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    Title :

    Atmospheric pollutant concentration calculation method based on urban traffic simulation


    Additional title:

    一种基于城市交通仿真的大气污染物浓度计算方法


    Contributors:
    WANG SHICHAO (author) / CHEN QI (author) / ZHANG ZHUOFAN (author) / QIU YINGJIE (author) / WANG BEI (author) / ZHANG ZIJIAN (author) / CHEN TINGXUAN (author)

    Publication date :

    2022-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06K Erkennen von Daten , RECOGNITION OF DATA / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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