Method for determining left-turning forbiddance traffic limitation intersection by using floating car data

Abstract

The invention discloses a method for determining a left-turning forbiddance traffic limitation intersection by using floating car data, and belongs to the field of intelligent traffic. The method comprises the following steps of: establishing a road network topology,, generating a candidate left-turning intersection in the road network topology, matching the floating car data to the road network topology, traversing the floating car data of all approach chains of each candidate left-turning intersection in the road network topology to obtain a ratio of the numbers of the floating car data matched with all approach chains of each candidate left-turning intersection, and then determining the left-turning forbiddance traffic limitation intersection according to the ratio. In order to solve the problems in the traditional traffic limitation method, the advantages of a floating car data FCD technology in the traffic information acquisition aspect are utilized to fully mine rich traffic information therein. By a large amount of calculation and analysis of floating trajectories, the urban road intersection traffic limitation information is automatically and accurately extracted.

Description

technical field [0001] The invention relates to the field of intelligent traffic, in particular to a method for determining a no-left crossing by using floating car data. Background technique [0002] Traffic restrictions refer to specific regulations with the nature of guidance, prohibition, restriction or instruction formulated by the traffic management department of the public security organ on the passage of vehicles and pedestrians on the road and other traffic-related activities in accordance with laws and regulations. There are many forms of traffic restrictions, one of which is forbidden left, which is the abbreviation of prohibiting left turns at urban signal intersections. [0003] Floating Car Data (FCD) technology is an emerging traffic information collection method. Compared with fixed-point collection methods such as traditional road detection technology and video surveillance technology, floating vehicle collection has low cost, easy installation, easy mainte...

AI Technical Summary

Problems solved by technology

[0005] At present, it is found that the work of banning left intersections is mainly done through manual means such as actual road testing and listening to the radio. This method inevitably results in a large workload, high time and money costs, and at the same time, the information of banning left cannot be updated correctly in a timely manner.

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