Topic

Motorway rules

Last reviewed against gov.uk on

Motorway rules covers everything specific to motorways — joining via the slip road, lane discipline, the national speed limit, smart-motorway gantries and the red X, and what to do if you break down.

What’s tested

  • National speed limit (70 mph cars/motorcycles; lower when towing)
  • Lane discipline — left-hand lane unless overtaking
  • Smart motorways: variable speed limits, hard shoulder running, red X
  • Joining and leaving via slip roads
  • Breakdown procedure — emergency areas, hazard lights, leaving the vehicle

Key Highway Code rules

Practise real DVSA revision questions

Work through 20 real DVSA car revision questions, each with the correct answer and a full explanation — then get the full bank for every topic in the app, free to get started.

Common mistakes

  • Middle-lane hogging when the left lane is clear (careless driving — police have been able to issue an on-the-spot fixed penalty for it since 2013)
  • Driving in a lane closed by a red X
  • Stopping on the hard shoulder when it is a running lane on a smart motorway
  • Joining a motorway too slowly and forcing traffic behind to brake

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