Theory Test

Study topic

UK road signs explained

Road signs make up a large portion of the theory test. Understanding the colour and shape system means you can work out the meaning of any sign -- even one you have not seen before.

Key facts to remember

  • Warning signs: triangular with a red border -- alert you to a hazard ahead.
  • Regulatory signs: circular -- tell you what you must or must not do.
  • Red rings or circles tell you what you must NOT do; blue circles give a positive (mandatory) instruction.
  • Information signs: mostly rectangular (blue for motorways, green for primary routes, white for minor roads).
  • Stop sign: red octagon -- you must stop completely. Give way: inverted (downward) triangle.

Road markings work alongside signs. A solid white centre line means no overtaking; a broken line means overtaking is permitted when safe. Yellow lines at the kerb show waiting restrictions.

Get on the road. Start today.

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