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Evaluation Method of Road Traffic State Based on Road Traffic Density

A technology of traffic density and road traffic, which is applied in the traffic control system of road vehicles, traffic flow detection, traffic control system, etc., can solve the problems of poor accuracy and achieve the effect of improving effectiveness and scientificity

Active Publication Date: 2020-02-14
ANHUI KELI INFORMATION IND
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Problems solved by technology

[0004] The purpose of the present invention is to provide a road traffic state evaluation method based on road traffic density, to solve the problem of poor accuracy of the existing road traffic operation state evaluation method

Method used

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  • Evaluation Method of Road Traffic State Based on Road Traffic Density
  • Evaluation Method of Road Traffic State Based on Road Traffic Density
  • Evaluation Method of Road Traffic State Based on Road Traffic Density

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Embodiment Construction

[0015] Combine below Figure 1 to Figure 2 Shown, the present invention is described in further detail.

[0016] Such as figure 1 As shown, this embodiment discloses a road traffic state evaluation method based on road traffic density, the method includes the following steps S1 to S3:

[0017] S1. Obtain the traffic density value s of the current road section;

[0018] S2. Calculate the traffic operation index of the current road section based on the preset road traffic operation index calculation model according to the traffic flow density value s of the current road section;

[0019] S3. Match the traffic operation index of the current road section with the preset traffic operation state classification table, and evaluate the traffic state of the current road section;

[0020] Wherein, the described road traffic operation index calculation model is:

[0021]

[0022] In the formula, x=ks, s is the traffic density value of the current road section, α, β and k are prese...

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Abstract

The invention discloses a road traffic state evaluation method based on road traffic flow density and belongs to the technical field of intelligent transportation systems. The road traffic state evaluation method comprises the steps that a traffic flow density value s of a current road section is obtained; according to the traffic flow density value s of the current road section and based on a preset road traffic operation index calculation model, traffic operation indexes of the current road section are calculated; the traffic operation indexes of the current road section are matched with a preset traffic operation state grading list to evaluate a traffic state of the current road section. When the traffic flow density value reaches a certain value, the road traffic operation index calculation model beings to change. In addition, when the traffic flow density value is lower, the change of road traffic operation indexes with the traffic flow density value is slower; when the traffic flow density value is larger, the change of the road traffic operation indexes with the traffic flow density value is rapider. The effectiveness and scientificity of road traffic operation state evaluation results are improved.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic control, in particular to a road traffic state evaluation method based on road traffic density. Background technique [0002] The road traffic density is an important evaluation index of the real-time operation index of urban road section traffic, that is, the congestion state. The road traffic density can be calculated from the road traffic flow and speed detected by the fixed detector and the floating vehicle detector. However, only based on the size of the road traffic density, it is impossible to bring an intuitive sense of congestion to decision makers and travellers. [0003] For how to evaluate the congestion situation of the current road section according to the traffic flow density, technicians have carried out a lot of research, but there are relatively serious defects in the existing evaluation methods: first, the existing evaluation method is only based on the traffic flow ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/065
CPCG08G1/0133G08G1/065
Inventor 宋志洪聂昌成江金凤吕红振王琳茹渑博石勇
Owner ANHUI KELI INFORMATION IND
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