Road Tunnels Manual
If tunnels are longer than a few hundred metres, specific equipment is required to enhance user safety, both in normal situations and in case of accidents.
To reduce the risks of accidents and limit the possible consequences, but also to provide users with an adequate level of comfort, a large variety of equipment can be installed. Chapter 7 of the report 05.06.B "Reduction of operating costs of road tunnels" discusses road tunnel equipment and Chapter 3 of the report 2008R15 "Urban road tunnels" provides details for the design and refurbishment of equipment.
The equipment of road tunnels is most often gathered in the following groups: