Road signs, Cycle route ahead
What does the cycle route warning sign mean?
A route used by cyclists crosses or joins ahead.

A red triangle with a bicycle.
What you must do
Watch for cyclists and give them plenty of room.
Where you will see it
Where a cycle route meets the road.
Test yourself
The theory test asks you to recognise signs like this one. Try the road and traffic signs quiz (with an easy and a hard set), or read the signs revision notes. Source: Know Your Traffic Signs.
Other common road signs
Meaning based on Know Your Traffic Signs and The Highway Code. The sign image is an official Department for Transport sign (Crown copyright) from Wikimedia Commons, reused under the Open Government Licence or the public domain. Always check the current Highway Code on gov.uk. Not affiliated with or endorsed by the DVSA.