The invention discloses a traffic road condition estimation dynamic iteration method. According to the method, existing charging record data is utilized, the operation state of a road is reproduced through the dynamic iteration method including the step of calculating a shortest path of a vehicle driving in a road net aiming at each OD record; the driving state of the vehicle on each path section of the shortest path is inverted, and the flow and speed of each road section at each moment based on a uniform speed hypothesis are obtained; dynamic iteration inversion is carried out on all vehicle records; when a calculated variance f(x) is larger than or equal to a set variance threshold, the variance is adjusted by means of variance balancing, and dynamic iteration is carried out; and finally an inversion result is obtained. According to the invention, time is continuous, and by means of dynamic iteration, each tracing point in each time of iteration is adjusted in time and space, so that the rationality and the accuracy of the result of road operation state reproduction are ensured, and the road operation condition is monitored in real time.


    Access

    Download


    Export, share and cite



    Title :

    Traffic road condition estimation dynamic iteration method


    Contributors:
    XIE KUNQING (author) / XING XINGXING (author) / XIE CHEN (author) / JIANG HONGTAO (author) / ZHANG JIDONG (author) / XIE KUNLIANG (author)

    Publication date :

    2015-10-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



    System and method for road traffic condition estimation

    OOBA YOSHIKAZU / UENO HIDEKI | European Patent Office | 2018

    Free access

    SYSTEM AND METHOD FOR ROAD TRAFFIC CONDITION ESTIMATION

    OOBA YOSHIKAZU / UENO HIDEKI | European Patent Office | 2018

    Free access

    SYSTEM AND METHOD FOR ROAD TRAFFIC CONDITION ESTIMATION

    OOBA YOSHIKAZU / UENO HIDEKI | European Patent Office | 2018

    Free access

    All-road traffic flow estimation method under limited observation condition

    LI XU / SHI TIANJING / ZUO JINPENG et al. | European Patent Office | 2024

    Free access

    Road condition dynamic monitoring system for intelligent traffic

    XU TIANZHEN / YE HANYUN | European Patent Office | 2022

    Free access