A Traffic Safety Analysis Method Based on Information Decay Model and Driven by License Plate Data Mining

A traffic safety and attenuation model technology, which is applied in the direction of road vehicle traffic control system, traffic flow detection, traffic control system, etc., can solve the problems of difficult engineering application, evaluation of urban road traffic safety, and complex comprehensive evaluation methods.

Active Publication Date: 2020-10-16
HANGZHOU YUANTIAO TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above methods are often difficult to evaluate urban road traffic safety in real time and dynamically, and the comprehensive evaluation method is complex and difficult to apply in engineering

Method used

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  • A Traffic Safety Analysis Method Based on Information Decay Model and Driven by License Plate Data Mining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] A traffic safety analysis method based on an information decay model and driven by license plate data mining, comprising the following steps:

[0079] S01. Select meteorological conditions, traffic flow status, traffic incidents, traffic violations and historical traffic accidents to evaluate the characteristic evaluation factors of traffic safety; the traffic flow status includes the following characteristic evaluation factors: sudden change in flow rate, road speed difference, road vehicle type Ratio and headway; traffic events include the following characteristic evaluation factors: traffic accident events and road construction events.

[0080] S02. Calculating the influence coefficients of all the feature evaluation factors selected in step S01 on road traffic safety. See the following respectively:

[0081] Calculation of the impact coefficient of sudden flow rate changes on road traffic safety: Firstly, real-time calculation is carried out in a unit cycle, and th...

Embodiment 2

[0100] In this embodiment, the steps described in Embodiment 1 are applied to specifically analyze traffic safety.

[0101] Such as figure 1 As shown, combined with the impact weight and score of the road traffic safety evaluation index, traffic incidents occurred on the current road section in this cycle, and a certain degree of sudden traffic flow and speed difference occurred on the road section, and the number of violations on the road section in the past month was 7 , the number of accidents is 4, it can be concluded that the road traffic safety score is 0.276, and the safety level of the current cycle is unsafe.

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Abstract

The present invention discloses a traffic safety analysis method based on an information attenuation model and driven by the license plate data mining, in particular relates to the road traffic field.The traffic safety analysis method comprises the following steps of S01 selecting the feature evaluation factors used for evaluating the traffic safety; S02 quantifying each feature evaluation factor, and calculating the influence coefficient of each feature evaluation factor, wherein the influence coefficients of the historical law violation and the accident factors to the traffic safety influence are calculated by the information attenuation model; S03 comprehensively evaluating the traffic safety grades of the urban roads by the influence coefficients of the feature evaluation factors of the plurality of features. The traffic safety analysis method of the present invention has the advantages that the road traffic safety can be evaluated real-timely and dynamically, and the comprehensive evaluation method is simple.

Description

technical field [0001] The invention relates to the field of road traffic, in particular to a traffic safety analysis method based on an information attenuation model and driven by license plate data mining. Background technique [0002] Urban road traffic safety evaluation is aimed at ensuring the safety of urban road users, starting from preventing traffic accidents and reducing accidents, conducting a comprehensive evaluation of urban roads, revealing potential risk factors of urban road accidents and taking corresponding measures , to ensure the safety of urban road traffic. However, it is extremely complicated to evaluate the road traffic safety level in different regions, and different evaluation results may be obtained based on different indicators. Road traffic safety system evaluation is generally divided into macro evaluation and micro evaluation. Macro evaluation includes absolute number method, accident rate method, model method, accident intensity method and re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/017
CPCG08G1/0125G08G1/0129G08G1/017
Inventor 夏莹杰蒋萌青侯培培
Owner HANGZHOU YUANTIAO TECH CO LTD
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