Abstract:  In existing highway tunnel management systems, issues related to confusion among personnel responsibilities, low efficiency, and high false alarm rates are encountered. To address these issues, the "emergency fire protection" and "inspection and maintenance" functions of the tunnel management station are assigned to a small and lightweight onsite comprehensive station and a novel management system is proposed. In addition, the fire safety of the novel system is assessed using a multilevel Monte Carlo sampling algorithm. In particular, five maturity levels of fire safety are formulated. A structural hierarchy analysis diagram for firesafety evaluation is constructed based on four firstlevel safety evaluation indicators, nine secondlevel safety evaluation indicators, and 20 observation variables. Furthermore, the probability and statistical characteristics of the 20 observed variables and Monte Carlo sampling algorithm are analyzed. Finally, the firesafety levels of the novel and traditional systems are compared. The evaluation results show that the firesafety levels of the novel system are more reliable than those of the traditional system, indicating that the proposed system outperforms traditional counterparts.

Key words: highway tunnels, management system, fire safety, Monte Carlo, multilevel sampling