A pre-event safety evaluation method based on traffic conflict

Abstract

The invention discloses a pre-event and post-event safety evaluation method based on traffic conflicts, comprising the following steps: (1) selection of facility groups and control groups; (2) collection of traffic conflict data; (3) construction of traffic conflict models; (4) traffic conflict Calculation and judgment of safety evaluation indicators. The present invention firstly selects the facility group and the control group required for traffic safety evaluation, then collects the traffic conflict data of the facility group and the control group respectively, then builds a traffic conflict model, and finally calculates the traffic safety evaluation index R to judge the safety evaluation result. The invention can realize rapid traffic safety evaluation, improve the reliability of traffic safety evaluation, and has practical engineering application value in traffic safety management.

Description

technical field [0001] The invention relates to the technical field of traffic safety management, in particular to a pre-event and post-event safety evaluation method based on traffic conflicts. Background technique [0002] Traffic safety evaluation is the basic support of road traffic safety audit. Traditional traffic safety evaluation adopts the historical data method based on traffic accidents. However, it is difficult to obtain traffic accident data, the collection time is long and the quality is unstable, which will lead to large deviations in the results of traffic safety evaluation. , especially for some new traffic facilities without traffic accident records, traditional traffic safety evaluation cannot be carried out. On the other hand, the existing accident-based traffic safety evaluation methods cannot eliminate the influence of external factors such as traffic volume changes on the evaluation results, and the obtained results are not reliable. Compared with tra...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a pre-event and post-event safety evaluation method based on traffic conflicts, use the combination of facility groups and control groups to effectively reduce the deviation of traffic safety evaluation, and greatly improve the accuracy of traffic safety evaluation performance and reliability, and can effectively overcome the difficulties in obtaining traffic accident data

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