Tunnel entrance and exit dynamic vehicle speed induction method for minimizing traffic accident risks

Abstract

The invention discloses a tunnel entrance and exit dynamic vehicle speed induction method for minimizing traffic accident risks. The tunnel entrance and exit dynamic speed induction method for minimizing traffic accident risks can realize vehicle behavior information collection and control order issuance through arranging continuous and multiple sets of video traffic flow detection devices and electronic information boards on key fault surfaces of road segments on the upstream and the downstram of the tunnel entrance and the tunnel exit in order to maximally improve a traffic safety level of the tunnel entrance and the tunnel exit in a time-space range. The tunnel entrance and exit dynamic vehicle speed induction method for minimizing traffic accidents overcomes a defect that the prior artdoes not take into account continuous spatial fault surface accident risks and cannot minimize the accident risks in tunnel entrance and exit traffic control, and a core algorithm of the invention isaimed to minimize traffic accident risks in a controlled area so as to maximally improve a traffic safety level of the areas at the tunnel entrance and tunnel exist. The tunnel entrance and exit dynamic speed induction method for minimizing traffic accident risks has a good engineering application value and a wide application prospect in handling of black spots near the tunnel entrance and tunnelexit and traffic accident prevention in China.

Description

technical field [0001] The invention relates to the field of intelligent traffic management. Based on the driver's visual characteristics and the temporal and spatial evolution of traffic flow motion waves, a real-time traffic accident risk monitoring model is implanted in a continuous space section to provide a dynamic vehicle speed induction at tunnel entrances and exits that minimizes the risk of traffic accidents. method. Background technique [0002] As a special road component, tunnels have certain particularities compared with ordinary road sections, which are mainly reflected in the characteristics of the traffic environment and the visual environment of drivers. According to relevant research, the human eye needs dark adaptation or light adaptation physiological process when the light changes rapidly, which will reduce visual function and visual comfort, and cannot accurately judge the distance from the vehicle in front. Once the vehicle in front is congested and d...

AI Technical Summary

Problems solved by technology

[0004] The present invention is aimed at the previous research on the variable speed limit control of the tunnel entrance and exit, only considering the traffic accident risk of the road section, lacking in thinking about the collision risk between vehicles, and not considering the accident risk of the continuous space section of the tunnel entrance and exit, and cannot realize the minimization of the accident risk , lack of coordinated control of multiple variable speed limit values, the present invention proposes a dynamic vehicle speed induction method at tunnel entrances and exits that minimizes the risk of traffic accidents, taking into account the blind period and traffic flow fluctuations of the driver's visual experience of dark adaptation or light adaptation The evolution law, based on the real-time calculation of the risk of inter-vehicle accidents at the tunnel entrance and exit within the space-time range, judges whether to activate the dynamic vehicle speed induction technology, which overcomes the shortcomings of not considering the accident risk of continuous space sections in the safety improvement of the tunnel entrance and exit in the past, and cannot minimize the accident risk

Images