Fire and Smoke Control in Road Tunnels

Among the possible risks, vehicle fires give rise to particular concern because they are not very rare events and their consequences might be far larger underground than in the open if no appropriate measures were taken. Also the important and continuous decrease in vehicle pollutant emissions has led to determine ventilation equipment by smoke control considerations in case of fire. This report provides the complete state-of-the-art prepared by the working group on "Fire and Smoke Control" of [...]

Road Safety in Tunnels

Since 1992 the PIARC Technical Committee on Road Tunnel Operation (C5) (Working Group on Traffic and Geometry) has started a world-wide survey in order to update the data on road safety. In addition to the global information on road safety, the various members of the Group have been requested to produce special studies on various structures, to allow the detailed analysis of problems related to breakdowns, accidents and fires and to draw more valuable information on design and operation of tunnels [...]

Road Tunnels: reduction of Operating Costs

The purpose of the report is to identify the main operational cost factors for road tunnels and to show, with examples and recommendations, how such costs could be reduced without conflicting with an acceptable standard of operational safety. The topic "Operational Costs of Tunnels" was an agenda item of the Brussels Congress in 1987. The publication from that Congress provided an analysis of tunnel cost and the distribution of operational costs for 112 road tunnels. The Committee on Road [...]