Samenvatting

This publication contains an overview of the results obtained through a collaborative process of those interested parties, facilitated by the Knowledge Platform for Tunnel Safety (KPT).

On 8 August 2017, the Minister of Infrastructure and Water Management sent a letter to the Dutch House of Representatives concerning the reduced fire resistance of concrete in four tunnels as established following an investigation by Rijkswaterstaat. This received extensive media attention and the findings led to many questions from various interested parties. After feedback in three national meetings, all the knowledge gathered was shared with the tunnel sector and recorded in this publication. This concludes the collaboration in four working groups (discussion tables) that started in 2018. The KPT remains available as a point of contact for questions about the published information on its website which can be found via the links in this document.