You're in the left-hand lane at traffic lights, waiting to turn left. Which signal means you must wait?
- A
- B
- C
- D
Why this is the answer
At some junctions, there may be separate signals for different lanes. These are called ‘filter’ lights. They’re designed to help traffic flow at major junctions. Make sure that you’re in the correct lane and proceed if the way is clear and the green light shows for your lane.
Why the other answers don't fit
- B
- — The green light is showing, so traffic may go. Green is never the signal that tells you to wait.
- C
- — Ahead is held on red, but the green arrow is lit for the left turn — which is the turn you want.
- D
- — Both the green light and the green left arrow are lit, so your turn is open.
Where this comes from
- Driving: the essential skills — section 6
- The Highway Code — page 122
- Know Your Traffic Signs — page 140
Rule numbers link to The Highway Code on gov.uk.
Where this question comes from
The question, its options and the explanation are reproduced word for word from the DVSA revision question bank under licence. The licence requires them to appear unaltered, so we cannot reword them and neither can anyone else — that is why you will meet the same wording on other sites. Everything else on this page is written by Theory Hub: the explanation of why each wrong answer is wrong, the topic guide and the revision notes.
Asked in: Car , Motorcycle
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