Method and system for judging road traffic states

Abstract

The invention discloses a method and a system for judging road traffic states. The method and the system use a plurality of traffic parameters as a basis for judgment, simultaneously establish a functional relation aiming at different road sections and preset the weight so as to improve the accuracy of the traffic state judge. The method comprises the following steps of: (1) selecting a plurality of traffic parameters; (2) through the sampling analysis of the traffic parameters of the road section, setting the functional relation between the plurality of the traffic parameters of the road section and crowding coefficients which correspond to the traffic parameters, and setting weighted values occupied by the plurality of the traffic parameters in the crowding degree judge of the road section; (3) in the end of each state judge period, acquiring the plurality of the traffic parameters of the road section in real time, and according to the set function, calculating the crowding coefficients which correspond to each traffic parameter; (4) carrying out a weighted average operation on the weighted values of each parameter and the crowding coefficients which correspond to the traffic parameters so as to obtain an average crowding coefficient; and (5) comparing the threshold values of the average crowding coefficient and the crowding coefficients so as to judge the road traffic state.

Description

technical field [0001] The invention relates to a traffic management method and system, in particular to a road traffic state judging method and system. Background technique [0002] With the rapid development of urban economy and the rapid increase of car ownership, the demand for urban road traffic has increased significantly, leading to the widespread occurrence of road traffic congestion and traffic jams. For this reason, how to obtain accurate traffic status information through statistical analysis based on traffic data detected by video, coil or microwave detectors has become a common concern of the majority of traffic participants or managers. Because accurate traffic status information is provided to travelers in real time through traffic broadcasts or traffic guidance screens, etc., it can induce them to choose reasonable travel modes, travel routes, etc., and at the same time provide support for traffic decision-making analysis, which can improve traffic management...

AI Technical Summary

Problems solved by technology

Another example is the size of the traffic parameter collection cycle that affects the results of traffic state judgments. If the statistical cycle is too short, it will be greatly affected by the phase of the signal control green or red light, especially during peak hours. Cannot reflect real-time traffic status changes, making information lag and invalid

[0007] The traffic conditions of each section of urban roads are different, and the locations of detectors in each section are also different. The traffic status information obtained by the above method is not accurate.

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