Great Britain Theory Test Coach
Rules of the roadQuestion 149 of 424

What must you do when a traffic light shows red?

  1. You may cross if the road is clear
  2. You may cross if you slow down
  3. You must stop only if others are present
  4. You must stop behind the white line
Show answer

Correct answer: You must stop behind the white line

On red, stop behind the stop line. Do not move over it.

Source: The Highway Code (Department for Transport, GOV.UK), Using the road (159 to 203), Rule 175

Practice rules of the road

Questions last reviewed: 18 October 2026