Runehamar tunnel fire tests

• New data from five large-scale tunnel fire tests are given.
• New analyzes of these data are presented.
• Simple models are developed to estimate and predict the key parameters.
• These correlations can be used by engineers working on tunnel fire safety.

Five large-scale fire tests, including one pool fire test and four HGV mock-up fire tests, were carried out in the Runehamar tunnel in Norway in year 2003. New data and new analyzes are presented in this paper, together with a short summary of previous work on these tests. Heat release rate (HRR), radiation, fire spread, gas production, backside wall temperature, visibility, backlayering, fire growth rate, gas temperature, flame length, ventilation and pulsation are investigated. Simple theoretical models are developed to estimate and predict these parameters. The correlations developed can be used by engineers working on fire safety in tunnels.