Road network passing efficiency change rate calculation method facing traffic manager

A technology of traffic efficiency and calculation methods, applied in the field of intelligent transportation research, can solve problems that cannot be used as traffic efficiency changes, cannot be eliminated, and evaluation basis

Active Publication Date: 2016-06-08
ZHEJIANG UNIV
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Problems solved by technology

However, the road network traffic efficiency under a specific road network is the result of the joint action of traffic demand and traffic management. Only the evaluation of road network statu

Method used

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  • Road network passing efficiency change rate calculation method facing traffic manager
  • Road network passing efficiency change rate calculation method facing traffic manager
  • Road network passing efficiency change rate calculation method facing traffic manager

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Embodiment Construction

[0120] The present invention will be further described below in conjunction with accompanying drawing

[0121] Taking the data before and after the implementation of signal adjustment and optimization measures in a city's traffic road network as an example, calculate the change rate of road network traffic efficiency before and after the implementation of signal adjustment measures, see figure 1 .

[0122] 1. Calculate the comprehensive transport efficiency of the road network and the average speed of the road network before and after the signal optimization measures.

[0123] (1), collect data

[0124] Collect and calculate the average speed of the road network and the traffic flow data required for the comprehensive transportation efficiency of the road network: the length of the i-th road segment in the road network l i , Capacity C i and the free stream velocity v fi , each sampling interval represents the average velocity v of the traffic flow at the detection section...

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Abstract

The invention discloses a road network passing efficiency change rate calculation method facing a traffic manager. The method comprises the steps of: selecting and calculating a road network average travel speed and road network transportation efficiency in unit time; carrying out grouped processing the average travel speed and the road network transportation efficiency according to the number of road network running vehicles, and determining a mapping relation of both the average travel speed and the road network transportation efficiency with the road network running vehicle number; defining a road network passing efficiency grouping comprehensive change rate and calculating a weight value; calculating the road network passing efficiency comprehensive change rate before and after implementing a control scheme according to the averaged travel speed, the road network transportation efficiency and an index weight, and performing contrastive analysis on the change of the passing efficiency. According to the invention, the defect that the influence of the alternating quantity cannot be eliminated in the original calculation of the road network passing efficiency change rate is overcome, comprehensive comparison and evaluation of the urban road traffic road network passing efficiency are facilitated, the potential of the policy and measures is excavated deeply, and the data support and decision basis for improving the traffic management level and the road network passing efficiency are provided.

Description

technical field [0001] The invention relates to a method for calculating the change rate of road network traffic efficiency for traffic managers, which is used for urban road traffic management and control, and belongs to the field of intelligent traffic research. Background technique [0002] A scientific and reasonable evaluation of the traffic efficiency of urban road networks under different management measures will help traffic managers fully understand the pros and cons of various road traffic measures, provide decision-making information support, and promote the improvement of urban traffic management. [0003] The evaluation and analysis of the traffic efficiency of urban road network is the basis for characterizing the effect of urban traffic management measures. Since the 1980s, the evaluation of urban road traffic efficiency has made a lot of progress. Scholars at home and abroad have proposed a large number of characterization indicators, description models and c...

Claims

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Application Information

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IPC IPC(8): G06Q50/26G06Q50/30
CPCG06Q50/26G06Q50/30
Inventor 蔡正义王殿海马东方熊满初朱慧陈梦微章伟金盛
Owner ZHEJIANG UNIV
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