Road and Railway Tunnels the Concrete Solution for Improving Passenger Safety and Emergency Response

Road tunnels and railway tunnels generally, located in sensitive sites, must not be considered simply as an extension of standard open-air sections. For the road tunnels, the thickness of the structure, its future maintenance and the consequences on traffic, as also the effect on lighting of pavement lightness have to be examined closely right from the project phase. In the case of railways tunnels, the long-term criteria (durability of the structure especially) and the access for fire services as quickly as possible mean that technical solutions (cement concrete track bed for example) enabling them to enter using their emergency vehicles and to drive on the track should be preferred