Safety management and control measure determination method based on tunnel portal traffic safety simulation research

Abstract

The invention discloses a safety management and control measure determination method based on tunnel portal driving safety simulation research, which comprises the following steps of: constructing a simulation calculation model according to a mechanical response and environmental wind simulation method by determining the mechanical response and environmental wind simulation method of a wind-induced vehicle at a highway tunnel portal; a simulation calculation model is adopted to analyze aerodynamic force and safety state change rules in the process that a single vehicle or double vehicles parallelly drive into a tunnel, safety evaluation systems of various driving working conditions are established according to the aerodynamic force and safety state change rules, and safety management and control measures of the highway tunnel portal are determined according to the safety evaluation systems of various driving working conditions. The safer and more accurate safety control measures can be obtained. The defect that environment wind cannot be input through single driving simulation can be overcome. Meanwhile, systematic improvement countermeasures are provided for construction, management and maintenance based on the whole life cycle thought, and reference and an overall problem solving thought are provided for safety design of a newly-built project and safety operation of a built project.

Description

technical field [0001] The invention relates to the technical field of vehicle aerodynamics, in particular to a method for determining safety management and control measures based on tunnel entrance driving safety simulation research. Background technique [0002] There are obvious differences in vision and environment between the inside and outside of the tunnel and ordinary ground roads and bridge structures. Due to its cylindrical structure, it will have a certain impact on vehicle motion response and driver operation. The research on the statistical analysis of tunnel accidents shows that the proportion of accidents at the entrance and exit of the tunnel is significantly higher than that in the middle of the tunnel. The proportion of traffic accidents at tunnel entrances and exits has reached nearly 90%, and the cause of traffic accidents at tunnel entrances deserves attention. [0003] For some areas with vast territory and rich wind resources, the environment of expre...

AI Technical Summary

Problems solved by technology

In the existing research methods, the aerodynamic response of the vehicle near the tunnel entrance under the action of crosswind has certain defects due to the change of the surrounding environment of the vehicle and the tunnel cannot be modeled according to obstacles, which may easily lead to the accuracy of the determined safety control measures. Low

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