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Traffic safety evaluation method of road network planning scheme

A technology of traffic safety and planning scheme, applied in the direction of road vehicle traffic control system, traffic control system, traffic flow detection, etc., can solve the problems of high road safety investment and high accident frequency, to ensure safety performance and reduce accidents. Frequency and road network predict the effect of reducing the number of accidents

Inactive Publication Date: 2018-06-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing traffic safety management is mostly based on the evaluation after the accident, which is not organically combined with the road network planning and design, resulting in high frequency of accidents and high investment in subsequent road safety improvement, and proposes a solution to the problem of Method of Traffic Safety Evaluation in Road Network Planning Scheme

Method used

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  • Traffic safety evaluation method of road network planning scheme
  • Traffic safety evaluation method of road network planning scheme
  • Traffic safety evaluation method of road network planning scheme

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specific Embodiment approach 1

[0019] Specific implementation mode one: combine figure 1 Describe this implementation mode, a kind of method for carrying out traffic safety evaluation to road network planning scheme of this implementation mode specific process is:

[0020] Step 1. Carry out type classification to road sections and intersections of the target road network;

[0021] Step 2, respectively predicting the number of traffic accidents of each type of road section and intersection;

[0022] Step 3, based on the number of traffic accidents predicted for each type of road section and intersection, identify potential accident-prone points;

[0023] Step 4, analyzing the inducing factors at the road network planning level for the identified potential accident-prone points;

[0024] Step 5: Based on the predicted number of traffic accidents for each type of road section and intersection, establish a road network unit traffic safety classification evaluation standard, and classify the traffic safety sta...

specific Embodiment approach 2

[0026] Specific implementation mode two: the difference between this implementation mode and specific implementation mode one is: in the described step one, road sections and intersections of the target road network are classified into types; the specific process is:

[0027] Apply the system clustering method to classify the road sections and intersections of the target road network. The road sections are divided into four categories, namely, the first category of road sections, the second category of road sections, the third category of road sections, and the fourth category of road sections; There are two categories, namely the first category of intersections and the second category of intersections;

[0028] The first type of road section includes road section types: one board with 2 lanes, one board with 4 lanes, two boards with 4 lanes and three boards with 4 lanes;

[0029] The second type of road section includes road section types: one board with 6 lanes, two boards w...

specific Embodiment approach 3

[0040] Specific embodiment three: what this embodiment is different from specific embodiment one or two is: in described step 2, respectively predict the number of traffic accidents of each type of road section and intersection; Concrete process is:

[0041] According to the model of predicting the number of accidents Establish an accident prediction model corresponding to each type of road section and intersection:

[0042] The traffic accident prediction model of the first type of road section is Y O =0.0334AADT 0.245 e 0.0293V-0.0624W+0.0757N

[0043] The traffic accident prediction model of the second type of road section is Y T =4.5585AADT 0.094 e 0.256L+0.0419N

[0044] The traffic accident prediction model of the third type of road section is Y TH =232.2931AADT 0.2500 e -0.1610W+0.0952N

[0045] The traffic accident prediction model of the fourth type of road section is Y F =26.7625×e -0.9020L+0.0987N

[0046] The traffic accident prediction model of the ...

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Abstract

A traffic safety evaluation method of a road network planning scheme is provided; the traffic safety evaluation method of the road network planning scheme aims to solve the problems that an existing traffic safety management method mostly performs evaluations after accidents and cannot be organically combined with the road network planning designs, thus causing high accident generation rates and high investments in follow up road safety improvements; the method comprises the following specific steps: 1, dividing types of road segments and intersections of the target road network; 2, respectively predicting the traffic accident frequency of the road segment and intersection of each type; 3, determining latent accident-prone locations based on the step2; 4, analyzing induction factors of thedetermined latent accident-prone locations; 5, building road network unit traffic safety grading evaluation standards based on the step2, and grading traffic safety status of the road network. The method is applied to the traffic safety evaluation fields of the road network planning scheme.

Description

technical field [0001] The invention relates to a method for evaluating traffic safety of a road network planning scheme. Background technique [0002] Among the influences of various factors on traffic accidents, road-related factors account for a considerable proportion, and the rationality of road network planning and design has an important impact on road traffic safety. The occurrence of many traffic accidents is related to the poor consideration of road network planning to a certain extent, and even the direct cause of some accidents is the defect in road design. Although traffic safety issues are considered in the current road network design and planning, most of them are limited to geometrical alignment and road network type, ignoring the comprehensive effects of traffic operation status, traffic environment and other factors. Systemic risk is still high. At present, urban traffic safety management is still focused on post-event processing and analysis, but a large...

Claims

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Application Information

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IPC IPC(8): G08G1/01G06Q10/04G06Q10/06G06Q50/26
CPCG06Q10/04G06Q10/06393G06Q50/265G08G1/0133
Inventor 孟祥海柳昕汝梁心雨吴佩洁刘振博
Owner HARBIN INST OF TECH
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