Great Britain Theory Test Coach
Rules of the roadQuestion 170 of 424

A works vehicle has a large Keep Left sign on its back. What must you do?

  1. Move over to the left and pass it, and stay out of the closed lane until it is safe
  2. Stay behind it until it stops
  3. Overtake it only on a dual carriageway
  4. Pass it on the right
Show answer

Correct answer: Move over to the left and pass it, and stay out of the closed lane until it is safe

You must pass on the side that the sign shows. Do not go back to the closed lane until it is safe.

Source: The Highway Code (Department for Transport, GOV.UK), Road works, level crossings and tramways (288 to 307), Rule 289

Practice rules of the road

Questions last reviewed: 18 October 2026