Evaluation method of etc lane layout scheme based on traffic conflict analysis

Abstract

The invention discloses a traffic conflict analysis-based ETC lane layout scheme evaluation method. The method comprises the following steps: 1, the factors affecting the traffic safety of a toll station and the level of each factor are determined; 2, the own parameters and the traffic flow parameters of the toll station are gathered; 3, VISSIM software is used to build a toll station simulation model, and the parameters acquired in the second step are used as input parameters of the simulation model; 4, output parameters of the toll station simulation model are determined, and the weights ofthe parameters and a traffic conflict index lambda are calculated; 5, a test scheme for an orthogonal test method is designed; 6, according to the test scheme designed in the fifth step, the input parameters of the toll station simulation model are changed, output parameters are acquired, and each test traffic conflict index lambda is calculated; and 7, a range analysis method is used to determinethe impact degree of each factor on the traffic safety of the toll station, and the best ETC lane layout scheme is determined. The method can directly and accurately evaluate the factors affecting the traffic safety of the toll station, and further, the ETC lane layout scheme is evaluated.

Description

technical field [0001] The invention belongs to the field of evaluation methods for traffic safety of toll stations, in particular to an evaluation method for ETC lane layout schemes based on traffic conflict analysis. Background technique [0002] With the rapid development of my country's economy and the filling of the gap in motor vehicle demand, the number of motor vehicles has continued to grow in recent years. In order to improve the expressway traffic capacity, ETC toll lanes are gradually introduced into the toll station system. However, due to the complexity of vehicle behavior at the tollbooth, its accident rate is much higher than the average level of the entire expressway. With the addition of the ETC lane, special factors such as the non-stop of vehicles in the ETC lane and the lane-changing behavior of erroneous vehicles have caused various accidents such as rear-end collisions, side impacts, collisions with fixed objects, and collisions with people, which hav...

AI Technical Summary

Problems solved by technology

However, due to the complexity of vehicle behavior at the toll booth, its accident rate is much higher than the average level of the entire expressway

With the addition of the ETC lane, special factors such as the non-stop of vehicles in the ETC lane and the lane-changing behavior of erroneous vehicles have caused various accidents such as rear-end collisions, side impacts, collisions with fixed objects, and collisions with people, which have serious impact on the traffic safety of toll stations. certain negative impact

[0003] Traditional research on traffic safety of toll stations mostly analyzes external factors, often ignoring the influence of changes in the nature of toll stations themselves on the safety of toll stations

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