The 20th and 21st joint COTA International Conference of Transportation Professionals (CICTP 2020-21)

Spiral tunnels are usually built in mountainous areas. Due to the high altitude and frequent snowy weather in these areas, the vehicles are prone to occur slippage and other dangers when they exit the tunnel, which has a greater impact on driving stability. In view of this special road condition, this research analyzes the factors affecting vehicle stability from many aspects. According to the spiral tunnel design and the characteristics of the vehicle structure, a simulation scene was constructed. Simulation experiments were carried out under normal weather and low-temperature snowy conditions by adopting the simulation driving simulation experiment method, and the changes of stability and driving instability conditions of the vehicle when driving out of the spiral tunnel exit section under different conditions were obtained. The experimental data is regressed and analyzed to obtain the relationship between vehicle driving stability and various influencing factors, which provides a reference for the follow-up related research work on the exit section of the spiral tunnel.

CICTP