A Method for Determining Threshold Value of Urban Road Traffic State
A traffic state and road traffic technology, applied in the field of intelligent transportation, can solve the problems of single influencing factor, unable to fully reflect the actual traffic operation situation of the road, and insignificant prevention and induction effects, so as to reduce errors and be beneficial to urban roads. Real and accurate effect of traffic guidance and traffic status
Inactive Publication Date: 2016-04-06
SOUTHEAST UNIV
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Problems solved by technology
Due to the complexity of the road traffic state itself and the nuances of the traffic state discrimination produced by different traffic travelers, the traffic operating environment considered by the threshold method determined by simulation or experience is relatively ideal and the influencing factors are single, and the determined threshold cannot be completely true. The actual traffic operation conditions of the road lead to the inconspicuous effect of prevention and induction
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[0026] The technical solutions of the present invention are described in detail below through examples. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation process is given, but the protection scope of the present invention is not limited to the following embodiments.
[0027] The method of the present invention firstly collects road video surveillance images, and according to a certain time collection degree, adopts the method of watching video surveillance images simultaneously by multiple people, multiple days, and multiple time periods to determine the road traffic state, and takes the arithmetic mean value of the traffic state results judged by multiple people And rounded up as the final actual traffic status. Then collect the average instantaneous vehicle speed in the corresponding time period in the video surveillance image, classify and summarize according to the traffic state, take the maximum...
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The invention discloses an urban road traffic state threshold value determination method. By considering complexity of a traffic state and delicate difference between traffic state discrimination of different traffic travelers, traffic state discrimination accuracy and authenticity are improved by manually viewing a road video monitoring image. Different from a simulation method and an empirical method for discriminating the road traffic state by usually supposing that a vehicle runs in an ideal road environment, the road video monitoring image originally represents historical and real road traffic conditions, so that the discriminated traffic state is more real and accurate. In order to eliminate the delicate difference between traffic state discrimination of the different traffic travelers, the traffic operation condition of the same road is observed by multiple persons in multiple days and multiple time periods, an arithmetic average value reflects the final urban road traffic state, threshold values corresponding to different traffic states are given, and the traffic state threshold values obtained by the method are more reasonable and reliable as compared with those obtained by the simulation method and the empirical method.
Description
technical field [0001] The invention relates to a method for determining an urban road traffic state threshold and belongs to the field of intelligent transportation. Background technique [0002] With the rapid development of social economy, the number of road vehicles continues to increase, the demand for road traffic increases rapidly, and the road traffic situation is becoming increasingly severe. The rapid increase in traffic congestion and vicious traffic accidents not only seriously threatens the safety of people's lives and property, but also seriously affects the operational efficiency of road traffic. In order to improve the safety and operating efficiency of road traffic, developed countries began to study the method of using advanced technology to monitor the road traffic operation status, and a traffic monitoring system using electronic equipment as a means appeared. The original traffic monitoring system mainly used the collected traffic flow information for t...
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IPC IPC(8): G08G1/00
Inventor 宁丹郭建华王静
Owner SOUTHEAST UNIV