Approaching the tunnel
Check you have enough fuel in your vehicle before entering the tunnel.
Remove sunglasses.
Switch on dipped headlights.
If available, tune in to the designated FM radio station as this will let you hear safety instructions during your journey. The station frequency will be displayed on an information sign at the entrance to the tunnel.
Keep a safe distance from the vehicle in front. Remember, you’re
entering a tunnel and tailgating could create an emergency. The recommended minimum safe distance for a car or motorcycle is 50 metres and for all other vehicles 100 metres. Always remember the ‘two second rule’.
When driving in some tunnels you may see electronic overhead signs, along with road markings (chevrons) which, combined, advise you of the minimum distance you should keep between you and the vehicle ahead of you.
Be aware there are restrictions on the use of tunnels by Heavy Goods
Vehicles (HGVs).
• The maximum height will be signposted. You must check this before you enter the tunnel.
• Wide loads may not be allowed. If you are carrying a wide load, you must contact the tunnel operators well in advance to see if the load is allowed.
• Vehicle size – there may be a ban on the use of the right-hand lane in a tunnel by large goods vehicles or other non-passenger vehicles if the number of axles on the vehicle equals or is more than the figure shown on a regulatory sign provided on the approach road to a tunnel.
For detailed information contact the tunnel operator.