Use of analytic hierarchy process and fire dynamics simulator to assess the fire protection systems in a tunnel on fire

The road and rail tunnels are increasing in number. Corresponding to this higher number of tunnels, a higher number of accidents related to safety problems occur. The safety of road and rail tunnels is mostly related to fire safety. Our purpose in this paper is to present a new integrated approach to the analysis of fire safety in tunnels. Using different techniques from the decision support tools, such as the analytic hierarchy process, and through the use of a fire dynamics simulator, we suggest a new priority in the classification of the fire‐fighting systems in tunnels. Attention will be paid especially in the analysis of the ventilation systems in tunnels.