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Road section traffic congestion index evaluation method based on spot speed

A technology of traffic congestion index and evaluation method, which is applied in the traffic control system of road vehicles, traffic flow detection, traffic control system, etc. Intuitive congestion experience and other issues to achieve the effect of ensuring diversity and sample size, reducing speed value calculation errors, reducing blindness and workload

Active Publication Date: 2015-08-19
安徽畅通行交通信息服务有限公司
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AI Technical Summary

Problems solved by technology

However, the size of the speed value cannot give decision makers and travelers an intuitive sense of congestion, so it is necessary to calculate a congestion index to evaluate the congestion situation of the current road section.
The existing congestion index calculation method has a strong subjective awareness in the classification strategy, and cannot achieve accurate classification from a quantitative perspective; in addition, the calculation model has too few parameters to adapt to the actual conditions of traffic operations in different cities, and the portability is not strong

Method used

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  • Road section traffic congestion index evaluation method based on spot speed
  • Road section traffic congestion index evaluation method based on spot speed
  • Road section traffic congestion index evaluation method based on spot speed

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] Such as figure 1 As shown, a traffic congestion index evaluation method based on the speed of the location, including the following steps:

[0038] S1. Constructing the calculation model of road section traffic congestion index:

[0039] RCI = 0 ( x ≤ 0 ) x α * 2 ( 0 x ≤ α ) ...

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Abstract

The invention provides a road section traffic congestion index evaluation method based on spot speed. The method comprises the steps that a road section traffic congestion index calculation model is constructed; model parameter values meeting the traffic characteristics of a road section to be tested are confirmed; time collection degree of the road section to be tested is confirmed; multi-source heterogeneous data fusion is performed so that representative spot speed of the road section to be tested is obtained; the traffic congestion index of the road section to be tested is calculated; and the traffic congestion level of the road section to be tested is confirmed. The method meets the traffic characteristics of specific cities and specific road sections and can be suitable for the actual situations of traffic operation of different cities so that real-time and accurate evaluation can be performed on the traffic congestion state of the city road sections, and thus transplantability is high.

Description

technical field [0001] The invention relates to the technical field of road traffic operation state evaluation, in particular to a method for evaluating traffic congestion index of a road section based on vehicle speed at a location. Background technique [0002] The speed of the vehicle at the location is the instantaneous speed of the vehicle passing through a specified location on the road. The arithmetic mean of a group of site speed observations is the average site speed. Site speed is widely used in traffic engineering. It is to formulate road design speed, set up traffic control facilities, determine traffic management methods, take traffic improvement measures and its economic analysis, explore the development trend of various types of vehicle speeds, evaluate road traffic facilities, traffic management and Evidence of traffic effects of improvement measures, etc. [0003] The vehicle speed detected by the road section fixed detector and the floating car detector i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
CPCG08G1/0133G08G1/052
Inventor 宋志洪江金凤吕红振梁子君
Owner 安徽畅通行交通信息服务有限公司
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