Tunnels

When approaching a tunnel

• switch on your dipped headlights
• don’t wear sunglasses
• observe the road signs and signals
• keep an appropriate distance from the vehicle in front.

Many tunnels, particularly the longer ones in Europe, are equipped with radio transmitters so that drivers can be warned of any incidents, congestion or roadworks. If this applies to the tunnel you’re approaching, switch on your radio and tune in to the indicated frequency.

When entering a tunnel, your visibility will be suddenly reduced. Be prepared for this change in conditions and make sure that you can stop within the distance you can see to be clear. Increase the distance between you and the car in front if necessary.

If the tunnel is congested

• switch on your warning lights
• keep your distance, even if you’re moving slowly. If you have to stop, leave at least a five-metre gap between you and the vehicle in front 194
• if possible, listen out for messages on the radio
• follow any instructions given by tunnel officials or variable message signs.

For action to take in the event of a breakdown or incident, see section 16.