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Traffic congestion index calculation method

A technology of traffic congestion index and calculation method, which is applied to traffic control systems, traffic control systems of road vehicles, instruments, etc., can solve the problems that cannot accurately reflect the actual feeling of traffic congestion, and the large difference cannot truly reflect the public's feelings, etc., reaching the curve The effect of smoothness, low index volatility, and wide application scenarios

Active Publication Date: 2013-09-04
北京交通发展研究院
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Problems solved by technology

The disadvantage is that it cannot accurately reflect the real feelings of traffic congestion. In some special cases such as extreme weather, small areas, and traffic control, the difference between the evaluation results and the actual feelings is large, and it cannot truly reflect the feelings of the public.

Method used

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0029] figure 1 For the traffic congestion psychological feeling index calculation flow chart of the present invention; figure 1 As shown, the traffic congestion index calculation method includes the following steps:

[0030] a. According to the data provided by the road network vehicle detection equipment, the traffic flow and the average driving speed of each road section in the road network are obtained;

[0031] b. Calculate the number of vehicles contained in each road section in the road network according to the traffic flow and average driving speed obtained in the previous step;

[0032] c. Construct a congestion sense intensity function with speed as an independent variable;

[0033] d. Bring the speed of each road section into the congestion feeling intensity function to o...

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Abstract

The invention discloses a traffic congestion index calculation method, which comprises the following steps: a, obtaining the traffic flow and the average running speed of vehicles of each road segment in a road network according to data provided by a road network vehicle detection equipment; b, calculating the number of vehicles contained in each road segment in the road network according to the traffic flow and the average running speed obtained in the step a; c, constructing a congestion intensity function taking the speed as an independent variable; d, substituting the speed of each road segment into the congestion intensity function to obtain the average congestion intensity of the road segment; and e, solving the weighted average of the congestion intensity of the whole road network by taking the number of the vehicles of each road segment as the weight number of the road segment, wherein the weighted average is used as the traffic congestion index of the road network. According to the traffic congestion index calculation method disclosed by the invention, psychological feelings of the publics can be relevantly reflected.

Description

technical field [0001] The invention relates to the technical field of traffic jam evaluation, in particular to a traffic jam index calculation method that can accurately measure the influence of traffic jam on people's psychological feelings. Background technique [0002] Traffic congestion is a concentrated expression of various social contradictions such as uneven population distribution caused by unbalanced economic development, limited urban traffic supply, and mismatch between urban layout and economic development. It is a worldwide problem. In order to comprehensively and deeply understand the nature of traffic congestion, provide support for traffic management, planning, policy introduction and other aspects of work, reasonably guide the public to travel, and effectively alleviate the increasingly serious congestion situation, an evaluation index system that can truly reflect the road congestion situation is needed. Among them is the traffic congestion index. Conges...

Claims

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Application Information

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IPC IPC(8): G08G1/00G08G1/052G08G1/065
Inventor 张彭孙建平郭继孚温慧敏姚青张溪朱丽云高永全宇翔
Owner 北京交通发展研究院
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