Automatic fire-fighting systems in tunnels

A fire can occur in many areas of a transport system. Detecting fires at an early stage and rapid automated fire-fighting can significantly minimize or completely prevent damage to rolling stock and infrastructure. In addition to effective fire-fighting, people should be safeguarded, the systems should be economical, and activation should cause a minimum of damage. Despite the positive effects of using automatic fire-fighting systems in terms of building protection and reducing the fire load, there may be negative effects on escaping persons during the escape phase. Different systems such as the high-pressure water mist system and the deluge system are investigated by CFD simulation and evaluated with regard to their use during the escape and external rescue phases. © 2019, Ernst und Sohn. All rights reserved.