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Road Traffic Control Method Based on Traffic Flow State

A road traffic control and traffic flow technology, applied in the traffic field, can solve the problems of low traffic efficiency, low road utilization rate, and no consideration of traffic conditions, so as to alleviate road congestion and ensure traffic efficiency.

Active Publication Date: 2020-04-24
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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Problems solved by technology

[0003] In the prior art, the following methods are generally adopted for traffic control: the first method is to use the method of limiting flow when traffic congestion occurs or is about to congest. Or the corresponding measures will be taken when the congestion is about to occur. At this time, the used road has reached a serious saturation situation, and the traffic efficiency is extremely low. Another way is to directly adopt the speed limit method. However, this control method does not Taking into account the actual traffic conditions, the road utilization rate is low, and even the state of congestion caused by the speed limit

Method used

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  • Road Traffic Control Method Based on Traffic Flow State
  • Road Traffic Control Method Based on Traffic Flow State
  • Road Traffic Control Method Based on Traffic Flow State

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Embodiment Construction

[0028] A kind of road traffic control method based on traffic flow state provided by the invention, comprises the following steps:

[0029] S1. Establish the objective function E of traffic efficiency:

[0030] Among them, Q is the traffic volume of the road, V is the average speed of the road, K is the traffic density of the road, α is the weight of the traffic volume Q in the traffic efficiency, and β 0 is the weight of the average vehicle speed V in the traffic volume, and β=α+β 0 ; where α>0 and β 0 >0; wherein, the traffic efficiency parameters include the traffic volume of the road, the average speed V of the road, the blocking density of the road, and the free flow speed; and, the traffic volume and the average vehicle speed have the following relationship: Q=KV;

[0031] S2. When the traffic efficiency is optimal, determine the weight state between the traffic volume and the average vehicle speed in the traffic flow, and make corresponding traffic control measures ...

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Abstract

The invention provides a road traffic control method based on a traffic flow state. The method comprises steps that S1, a traffic efficiency target function E is established, E=Q<alpha>V<beta0>=K<alpha>V<beta>, the Q is road traffic volume, the V is an average road velocity speed, the K is road traffic density, alpha is weight of the traffic volume Q in traffic efficiency, beta0 is weight of the average velocity speed in the traffic volume, accurate control measures can be made according to the actual traffic flow state of the road traffic, road pass efficiency is effectively guaranteed, perspectiveness is realized, road jam can be effectively alleviated, and accurate control bases can be provided for coordination control of other roads of the road network.

Description

technical field [0001] The invention relates to the traffic field, in particular to a road traffic control method based on traffic flow state. Background technique [0002] In modern society, as the popularity of automobiles becomes more and more widespread, traffic problems become increasingly prominent and become more and more serious. Therefore, how to effectively control traffic has become a technical hotspot and technical difficulty in the field of transportation. [0003] In the prior art, the following methods are generally adopted for traffic control: the first method is to use the method of limiting flow when traffic congestion occurs or is about to congest. Or the corresponding measures will be taken when the congestion is about to occur. At this time, the used road has reached a serious saturation situation, and the traffic efficiency is extremely low. Another way is to directly adopt the speed limit method. However, this control method does not Considering the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/08
CPCG08G1/08
Inventor 韩直岳海亮
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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