Publication sheet

Air Velocities Permitted in Road Tunnels, and Other Requirements for a Safe Escape Route in Case of Fire

  • Date : 2018
  • Author(s) : MANTE Donald
  • Domain(s) : Road Tunnel Operations
  • PIARC Ref. : RR378-050
  • Number of pages : 5

In The Netherlands tunnels are usually equipped with an escape gallery between tunnel tubes, to support evacuation in case of a tunnel fire and/or an incident involving dangerous goods. Overpressure ventilation prevents the smoke from entering the gallery, when emergency exit doors are opened. The article deals with the acceptable air velocity in the escape route and shows the results of tests organized with over a hundred test persons in an actual tunnel.

This article has been published in the Routes/Roads magazine

N° 378

Tunnels routiers

3e trimestre 2018 / Octobre

English Version:
Air Velocities Permitted in Road Tunnels, and Other Requirements for a Safe Escape Route in Case of Fire

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French version:
Vitesse de l'air autorisée dans un tunnel et autres exigences concernant le chemin d'évacuation en cas d'incendie

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Spanish version:
Velocidad del aire permitida en un túnel y otros requisitos para contar con una vía de escape segura en caso de incendio

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