Determination and analysis of tunnel safety requirements from a functional point of view
Published: 19 April, 2010
As stated in the presentation ‘Magic Numbers in Tunnel Fire Safety’ [1] during the ISTSS2008, there is a need for another approach for determining safety requirements and designing safety systems for tunnels. In this article an approach is presented to determine the main safety functions and requirements for a tunnel, in order to analyse and to verify from a functional point of view whether the tunnel can be regarded as safe; both in the design phase and during operation. This approach was used in 2009 to determine a set of high level safety requirements for the development of the N201Waterwolf Road tunnel in the Netherlands. This tunnel is presently under construction and due to open in 2011. These high level requirements were utilised to validate the safety level for this tunnel.







