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Method for evaluating safety of highways by utilizing actual driving speed data of road sections

A technology of actual operation and data evaluation, applied in the field of transportation system safety engineering, can solve the problems of small amount of data, large difference in evaluation results of operating speed, and no actual speed analysis, etc., to achieve good evaluation results

Pending Publication Date: 2018-10-26
WUHAN UNIV OF TECH
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Problems solved by technology

The above-mentioned literature mainly studies the operating speed characteristics of highways, but the shortcoming is that most studies do not analyze the actual vehicle speed, or the amount of selected data is small
[0004] The theoretical vehicle speed model used in the existing safety evaluation methods cannot fully reflect the problem of vehicle speed changes under complex linear conditions, resulting in a large difference between the operating speed evaluation results and the actual data

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  • Method for evaluating safety of highways by utilizing actual driving speed data of road sections
  • Method for evaluating safety of highways by utilizing actual driving speed data of road sections

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Embodiment Construction

[0025] The technical solutions of the present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 with figure 2 As shown, a method for evaluating highway safety using the actual running vehicle speed data of road sections described in the present invention comprises the following steps:

[0027] 1) Use the actual running speed data of vehicles on the road section to analyze the speed of the segmented roads to distinguish it from the theoretical running speed analysis at the current stage. In complex road environments, there are certain differences between the theoretical speed and the actual speed. The data can more truly reflect the operating characteristics of vehicles on different road alignments and further reflect the safety of the road. According to the I HSDM model, the operating speed V 85 It refers to the safe speed that drivers with medium technical level can maintain according to the actual ro...

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Abstract

The invention relates to the field of transportation system safety engineering, and especially relates to a method for evaluating safety of highways by utilizing actual driving speed data of road sections. For the problems that theories of conventional safety evaluation methods cannot fully reflect the driving speed changes of vehicles under complex alignment conditions, the method for evaluatingsafety of highways by utilizing actual driving speed data of road sections is provided. A novel method for evaluating safety of highways by using driving speed characteristics can be provided by adopting massive vehicle monitoring data collected by a vehicle mounted GPS technology to analyze the speed characteristics of different road unit types; and speed change rules can be obtained through analysis when the vehicles with different types drive on different unit types of a highway, and close combination of highway alignment and the actual driving speed of the vehicles has great significance.

Description

technical field [0001] The invention relates to the field of traffic and transportation system safety engineering, in particular to a method for evaluating road safety by using actual running speed data of a road section. Background technique [0002] The traffic safety evaluation of highway is the basis of highway traffic safety management, and it is also an important basis for managers to make decisions. Under the framework of the scientific evaluation system, conduct an objective evaluation of the road traffic safety level, and then formulate strategic opinions and guarantee methods for road traffic safety, so as to improve the safety management level and ensure that the occurrence of traffic accidents can be minimized. Calculation and analysis of operating vehicle speed is the basic work of highway safety research. "Highway Project Safety Evaluation Specification" (JTGB05-2015) proposes to divide road units of different alignments and calculate and analyze the operating ...

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Application Information

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IPC IPC(8): G08G1/01G08G1/052
CPCG08G1/01G08G1/052
Inventor 吕能超徐斌谢练段至诚吴超仲秦羚
Owner WUHAN UNIV OF TECH
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