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MOTORWAYS
Drive with confidence on the UK's fastest roads.
Motorways demand higher speeds, greater forward planning and unwavering lane discipline. Our complete guide covers everything from the rules and signs to breakdowns and learner driver access.
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Motorway driving rules
Motorways are the fastest roads in the UK. The national speed limit on a motorway is 70 mph. Keep left unless overtaking — do not stay in the middle or right lane unnecessarily. You must not reverse, cross the central reservation, or drive against the flow of traffic. Red X signs above a lane mean that lane is closed — do not pass through.
Joining and leaving the motorway
Use the slip road to accelerate to motorway speed before merging. Signal right, check your mirrors and blind spot, and merge when there is a safe gap — traffic on the motorway has priority. To leave, signal left in good time, move into the left lane and exit onto the slip road. Decelerate on the slip road, not on the motorway itself.
Keep Left
Always drive in the left lane unless overtaking. After overtaking, return to the left lane as soon as it is safe.
Mirror Checks
Check mirrors frequently at motorway speeds — situations develop quickly. Use MSM before every lane change.
Smart Motorways
On smart motorways, the hard shoulder may be used as a live running lane. Always obey overhead gantry signs and speed limits.
Breakdowns
If you break down, pull onto the hard shoulder (where available), switch on hazard lights and exit from the left. Call for help from an emergency phone.
Variable Speed Limits
Variable speed limits on smart motorways are mandatory. Red X means lane closed. Obey all overhead signs — they override the national limit.
Two-Second Rule
At motorway speeds, maintain at least a two-second gap to the vehicle in front — more in poor weather. Greater speed demands greater thinking distance.
Can learner drivers use motorways?
Since June 2018, learner drivers with a provisional licence can drive on motorways — but only in a dual-controlled car with an approved driving instructor (ADI). Motorway lessons are voluntary and are not assessed as part of the practical driving test, but many learners find them invaluable for building confidence before they pass.
Build motorway confidence with RED
Ask your RED instructor about motorway lessons to prepare you for life as a newly qualified driver.
Motorway Driving FAQs
What is the speed limit on a motorway?
Can I use the hard shoulder to rest on a smart motorway?
What does a red X mean on a motorway?
Can learners drive on motorways?
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