A solid red traffic light is a strict legal instruction to stop immediately behind the stop line.
Failing to stop at a red light is dangerous, illegal, and leads to direct penalties on your driving licence.
What this sign means
The illuminated red light indicates that traffic must not proceed past the stop line or enter the junction.
It establishes right of way for cross-traffic or pedestrians controlled by the traffic system.
What to do when you see it
When approaching a red traffic light:
Key actions:
- Bring your vehicle to a complete stop before the thick white stop line.
- Do not cross or overhang the stop line into advanced stop lines reserved for cyclists.
- Wait patiently until the light sequence changes to green before moving off.
How this sign is tested
Theory questions focus on traffic light sequences and stop line positioning.
Questions check whether drivers know if turning right on red is allowed in the UK (it is strictly prohibited unless guided by a green filter arrow).
Common mistakes
Creeping over the stop line while waiting for the light to change.
Stopping inside the advanced stop box designated for cyclists.
Test yourself on this one
Road and traffic signs is the biggest category in the question bank with 102 questions, and signs turn up inside other categories too. Work through them free, no sign-up needed.
Practise road sign questionsFrequently asked questions
Can I turn left or right on a red light in the UK?
No. Unlike some other countries, turning on red is illegal in the UK unless a green filter arrow is active.
What happens if I stop beyond the white stop line?
Stopping past the white line is a traffic violation and can be recorded by red light enforcement cameras.
What light comes immediately after red?
In the UK sequence, red is followed by red and amber together.