MUTCD W11-1 · Warning signs
Bicycle crossing or bicycle activity ahead
What it means
Warns of bicycle crossing or bicycle activity ahead.
What to do about it
It is a warning sign: the yellow diamond warns of a condition ahead so you can slow down and be ready before you reach it. (MUTCD W11-1.)
Practice this on the real test format
Signs are the part of the DMV written test people fail on, because reading them is a skill rather than a fact to memorize. Aprobify drills all 1034 of them, and tells you why each answer is what it is.
Get the appSign designations follow the MUTCD and the California MUTCD published by Caltrans; meanings are checked against the California Driver's Handbook (DL 600, rev. 6/2025). Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.
Signs in the same family
These sit next to it in the warning signs series — the ones most easily mixed up with it.
- W10-15P Supplemental plaque warning of rough railroad crossing
- W10-16 Activated blank-out sign warning of another train approaching
- W10-21 Busway crossing ahead
- W10-21aP Supplemental plaque indicating signal ahead at busway crossing
- W11-2 Pedestrian crossing or pedestrian activity ahead
- W11-3 Deer crossing area ahead
