In a tunnel, goods vehicles cannot use right-hand
lane (by reference to number of axles)
The regulation does not apply when: a red X is displayed over the left-hand lane, which means the lane must not be used; a green arrow is displayed over the right-hand lane, which directs all vehicles to use the right-hand lane; or the left-hand lane is blocked.
There are two forms of speed limit signs in tunnels.
A standard speed limit sign applies where there is a fixed speed limit in a tunnel. You must obey the speed limit and remember this is the maximum permitted speed, not the required speed.
30km/h 50km/h 60km/h 80km/h 40km/h
Where the speed limit can vary in a tunnel, you will see a variable
message sign, which is a black square with a red circle and numbers in white or yellow. The speed limit is shown by the numbers and will vary according to traffic conditions and road safety considerations. You must obey the speed limit and remember this is the maximum permitted speed, not the required speed. km/h km/h km/h km/h km/h
60km/h 80km/h
50km/h
30km/h
40km/h
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. These signs should be obeyed.