School, Pedestrian, and Bicycle Signs
These signs protect vulnerable road users and require extra attention to timing and right-of-way. Pentagon-shaped yellow signs mark school zones and school crossings. In Arizona, school zones commonly post reduced speed limits that apply during specified hours or when children are present, and questions test whether you can identify when the limit is active. Flashing beacons, crossing guards, and posted hours all modify the rule.
Pedestrian and bicycle signs include yellow diamond warnings for pedestrian crossings and bicycle crossings, plus regulatory signs such as "STOP FOR PEDESTRIANS" in a crosswalk or shared-path instructions. Watch for signs indicating a trail crossing, where bicyclists and pedestrians may cross a roadway unexpectedly. Also know that a pedestrian in a crosswalk has the right of way, and that passing a vehicle stopped at a crosswalk is dangerous and often illegal.
Traps: assuming a school-zone limit applies all day; ignoring a crossing guard's signal because no children are visible; confusing a bicycle warning sign with a bicycle-lane regulatory sign; and failing to scan for pedestrians when turning at a signal, where the crosswalk conflicts with the turn.
Rule of thumb: when a school or pedestrian sign is present, reduce speed and scan the full crosswalk and sidewalk before proceeding. Worked example: you enter a school zone posted 15 mph "WHEN CHILDREN ARE PRESENT" and see children on the sidewalk near the curb. Treat the limit as active, slow to 15, and be ready to stop. If the sidewalk were empty and no children were visible, the lower limit would not be in force - but caution is still required.