Climbing lane traffic safety benefit calculation method based on inclination value matching

A calculation method and traffic safety technology, applied in the traffic control system, calculation, traffic flow detection of road vehicles, etc., can solve the problems of inaccurate acquisition of the net impact of climbing lanes, sample selection deviation, etc., to reduce the impact of confusion, The effect of improving accuracy
CN110738591APending Publication Date: 2020-01-31HARBIN INST OF TECH AT WEIHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH AT WEIHAI
Publication Date
2020-01-31

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Abstract

The invention discloses a climbing lane traffic safety benefit calculation method based on inclination value matching, and relates to a climbing lane traffic safety benefit calculation method based oninclination value matching. The method aims to solve the problem that when a traditional regression method is used for analyzing the safety benefit of the climbing lane, due to the existence of sample selectivity deviation, the net influence of the climbing lane on traffic safety cannot be accurately obtained. The method comprises the following steps: 1, collecting, processing and organizing data, and determining samples of a control group and a control group; 2, constructing a tendency value model, and predicting tendency values of all samples; 3, sample matching based on the inclination value; 4, checking the balance of the confusion variable, if the confusion variable passes the check, executing the next step, otherwise, returning to the step 2; and 5, calculating the traffic safety benefit of the climbing lane. The method is used in the field of road traffic safety, and is especially suitable for analyzing the influence of a certain specific factor on traffic safety.
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Description

Technical field

[0001] The invention belongs to the field of road traffic safety, and specifically relates to a method for calculating the traffic safety benefit of a hill climbing lane based on matching of inclination values. Background technique

[0002] In the continuous uphill section of the highway in the hilly area, heavy vehicles often run at a significantly lower speed than other vehicles due to insufficient climbing performance, which reduces the capacity of the section and is not conducive to traffic safety. Set up ramp lanes on steep slopes to separate heavy vehicles from the traffic flow, which can reduce the impact of large vehicles on the traffic flow. However, as an engineering measure with relatively large technical difficulty and investment, the benefit-cost ratio of setting up a climbing lane and its contribution to safety need further study.

[0003] At present, the few studies involving ramp lanes use simulation data to analyze the impact of a particular ramp l...

Claims

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