Tunnel Fire Tests

This chapter gives a detailed overview of numerous large-scale fire tests carried out in different types of tunnels. Some important model-scale tunnel fire tests are also included. The information given sets the level of knowledge from this type of tunnel fire testing. The reason for doing tests is to obtain new knowledge about different phenomena. Although the focus is on large-scale testing, the fundamental knowledge is obtained both from large-scale and intermediate size tunnel testing as well as laboratory testing (e.g. scale models). The aim is usually to investigate some specific problems such as influence of different ventilation systems on smoke and temperature distribution along the tunnel, the fire development in different type of vehicles and the effect of heat exposure on the integrity and strength of the tunnel construction.