Sequence of Factors Affecting Stability of Tunnel Exit Section in Low Temperature Rain and Snow Weather

When the vehicle is only affected by road conditions and its own speed, in the low temperature rain and snow weather. In order to clarify the order of the importance of each influencing factor at the exit section of the tunnel on the driving stability, this article uses the analytic hierarchy process to sort them. The results show that the order of importance is: Friction coefficient μ_s > driving speed ν (m/s)> circular curve radius R (m), longitudinal slope i (%). According to the sorting results, targeted safeguard measures can be provided for the tunnel design, operation and use process.

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