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A Calculation Method of Change Rate of Road Network Traffic Efficiency for Traffic Managers

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

Active Publication Date: 2017-04-12
ZHEJIANG UNIV
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  • Application Information

AI Technical Summary

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 status cannot eliminate the impact of different traffic demands, so it cannot be used as an evaluation of traffic efficiency changes under different traffic management measures. in accordance with

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  • A Calculation Method of Change Rate of Road Network Traffic Efficiency for Traffic Managers
  • A Calculation Method of Change Rate of Road Network Traffic Efficiency for Traffic Managers
  • A Calculation Method of Change Rate of Road Network Traffic Efficiency for Traffic Managers

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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 method for calculating the change rate of road network traffic efficiency for traffic managers. The invention includes: selecting and calculating the average travel speed of the road network and the transportation efficiency of the road network per unit time; grouping the average travel speed and the transportation efficiency of the road network according to the number of vehicles traveling on the road network, and defining the mapping between the two and the number of vehicles traveling on the road network. relationship; define the comprehensive change rate of road network traffic efficiency grouping and calculate the value of the weight; calculate the comprehensive change rate of traffic efficiency of the road network before and after the implementation of the control plan based on the average travel speed, road network transportation efficiency and indicator weight, and compare and analyze the traffic efficiency changes Condition. This invention makes up for the shortcoming that the original road network traffic efficiency change rate calculation cannot remove the influence of exchange volume, helps to comprehensively compare and evaluate the traffic efficiency of urban road traffic networks, deeply explores the potential of policies and measures, and improves the level of traffic management and improves road efficiency. Network traffic efficiency provides data support and decision-making basis.

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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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
CPCG06Q50/26G06Q50/40
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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