A mandatory cycle lane is marked by a solid white line and signed with a blue circle showing a cycle. Motor vehicles must not enter or park in it during its hours of operation.
The advisory version uses a broken white line and a different sign, which is the distinction the theory test focuses on.
What this sign means
The lane is reserved for cyclists. Driving or parking in it during the operational hours is an offence.
Times of operation appear on a plate. Where no times are shown the lane applies at all times.
What to do when you see it
Keep out of the lane and give cyclists room.
- Do not drive in or park in a mandatory cycle lane.
- Leave at least a car width when passing a cyclist in the lane.
- Check the lane before turning left across it.
- Do not stop in it to set down passengers.
How this sign is tested
Questions ask whether you may drive in a cycle lane marked by a solid white line, and the answer is no while it is operating.
Advisory lanes with broken lines may be entered when unavoidable.
Common mistakes
Parking in a cycle lane for a moment, which forces riders into the traffic stream.
Confusing solid and broken lines, which is exactly what the test question checks.
Test yourself on this one
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Practise road sign questionsFrequently asked questions
Can I park in a mandatory cycle lane?
No, not while it is in operation.
What does a broken line cycle lane mean?
It is advisory. You may enter if it is unavoidable but should not do so routinely.
How much room should I give a cyclist?
At least as much as you would give a car, which is around 1.5 metres at lower speeds.