The invention relates to an urban road traffic flow calculation method, which comprises the following steps of: firstly, carrying out gridding processing on road network data, dividing grids from an origin of coordinates according to a set longitude interval and a set latitude interval, and displaying the grids of a map area; secondly, according to latitude and longitude coordinates of positioning data, quickly positioning to a corresponding grid, and associating to a road section in the grid through the grid; processing the buffer area of the road section, judging the inclusion relation between the positioning data and the buffer area of the road section, finding the road section containing the positioning data, matching the direction of the positioning data with the direction of the road section, and finally obtaining the road section with the most accurate positioning data; and road condition calculation is carried out according to the instantaneous traffic flow and the vehicle speed in the road section. According to the invention, for concurrent processing of the positioning data, the processing speed and accuracy of the positioning data are improved, and real-time road condition information can be reflected more quickly and more accurately.
本发明涉及一种城市道路车流量计算方法,首先对路网数据网格化处理,根据设置的经度间隔和纬度间隔从坐标原点划分网格,并显示地图区域的网格;其次根据定位数据的经纬度坐标,快速定位到对应的网格,通过网格关联到网格内的路段;再进行路段的缓冲区处理,定位数据与路段的缓冲区做包含关系判断,找到包含定位数据的路段,之后定位数据的方向与路段方向做匹配,最终得出定位数据最准确的路段;最后根据路段内的瞬时车流量及车速进行路况计算。本发明对于定位数据的并发处理,提高了定位数据的处理速度和准确度,可更快、更准确的反应实时的路况信息。
Urban road traffic flow calculation method
一种城市道路车流量计算方法
2024-04-30
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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