An evacuation experiment was performed in the Göta tunnel on November 22, 2006 in Göteborg, Sweden. In total twenty-nine participants who were not informed about the experimental conditions evacuated as they were forced to stop in the tunnel due to a simulated car accident where a fire had started. After two and a half minute after the first car stopped an evacuation alarm started but at that time several of the participants had already initiated their evacuation. Green flashing lights were found to be significant for some of the participant’s decision to evacuate and choose an evacuation route. Results also suggest that people were influenced by others during evacuation, i.e., that social influence was important. Social influence was important both for the decision to evacuate and the choice of exit
