The invention belongs to the field of traffic flow estimation, and relates to a floating car data-based full-region road section traffic flow estimation method. The method comprises the following steps: firstly, based on road section information investigation, classifying all-region road sections, and determining reference road sections and non-reference road sections; collecting the flow of a reference road section by using a radar, and collecting the free flow speed and the real-time average speed of the whole-region road section by using a floating car method; and finally, selecting each reference road section, calibrating the blocking density on a single lane of the road section based on the acquired flow data and the floating vehicle data, and estimating the flow of other non-reference road sections by using the blocking density and the floating vehicle data. According to the method, the flow data acquisition cost is reduced, the manual workload and the data storage amount are reduced, the road sections in the research area are classified according to the urban built environment, the road section flow of the whole area is classified and estimated according to the classification result, and the flow estimation accuracy is remarkably improved.
本发明属于交通流量估计领域,涉及一种基于浮动车数据的全区域路段交通流量估计方法。本发明首先基于路段信息调查,对全区域路段进行分类,并确定参考路段与非参考路段;然后使用雷达采集参考路段的流量,使用浮动车法采集全区域路段的自由流速度以及实时平均速度;最后选取各参考路段,基于上述采集到的流量数据和浮动车数据,标定该类路段单一车道上的阻塞密度,并使用上述阻塞密度和浮动车数据,估计其余非参考路段流量。本发明降低了流量数据获取的成本,减少了人工的工作量和数据存储量,依据城市建成环境对研究区域内路段进行了分类,并依据分类结果对全区域路段流量进行了分类估计,显著提高了流量估计的准确性。
Full-region road section traffic flow estimation method based on floating car data
一种基于浮动车数据的全区域路段交通流量估计方法
2024-01-02
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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