road tunnel![click to hear](/images/speaker.jpg)
Underground passage for a road under an obstacle, such as a river or a hill.
emergency truck ![click to hear](/images/speaker.jpg)
Vehicle equipped for freeing accident or fire victims and transporting them to hospital.
vehicle rest area ![click to hear](/images/speaker.jpg)
Area reserved for permanent parking of an emergency vehicle or temporary parking for a vehicle that has broken down or has had an accident.
roadway ![click to hear](/images/speaker.jpg)
Surface upon which vehicles drive.
fresh air duct ![click to hear](/images/speaker.jpg)
Conduit usually connected to a central ventilating station, which supplies the tunnel with fresh air through openings at the side of the roadway.
evacuation route ![click to hear](/images/speaker.jpg)
Fresh-air duct connected to a shelter and equipped to evacuate users in case of fire.
exhaust air duct ![click to hear](/images/speaker.jpg)
Conduit usually connected to a central ventilating station, which evacuates polluted or smoky air through openings along the tunnel.
safety niche ![click to hear](/images/speaker.jpg)
Recess for an emergency telephone and fire extinguishers.
pressurized refuge ![click to hear](/images/speaker.jpg)
Enclosed corridor with two doors; one cannot be opened unless the other one is closed, thus the air pressure prevents the smoke from entering.
stairs ![click to hear](/images/speaker.jpg)
shelter ![click to hear](/images/speaker.jpg)
Enclosed room, ventilated, insulated from fire and connected to the evacuation route, ensuring the users’ safety before evacuation.
emergency station ![click to hear](/images/speaker.jpg)
Office housing on-duty personnel responsible for communications and for first aid and fire-fighting equipment.
connecting gallery ![click to hear](/images/speaker.jpg)
Corridor connecting the vehicle rest area to the emergency station.
technical room ![click to hear](/images/speaker.jpg)
Room housing lighting, ventilation, heating and telecommunications equipment.