Method for estimating traffic state parameter based on confidence of speed of float car
A traffic state and parameter estimation technology, which is applied in the direction of traffic flow detection, etc., can solve the problems of traffic state parameter estimation, which cannot fully reflect the road traffic state, and the traffic state cannot be started.
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[0033] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0034] The core idea of the present invention is to provide a method for estimating traffic state parameters (vehicle speed) based on confidence optimization. By introducing confidence factors, it focuses on the number of floating car speed data samples, the speed of the vehicle, and the continuity of traffic state in time. To overcome the problem that the existing estimation methods of traffic state parameters cannot fully reflect the real traffic state parameters.
[0035] When judging the traffic status of urban roads, usually all the roads in the city are divided into multiple road sections, and the traffic status of each road section is judged separately, and the traffic status of all road sections is summarized to obtain the entire urban ...
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