Warning signs
Playground sign
A playground is near the road ahead. Children may run into the street without looking, so slow down and watch the shoulder.
- Diamond
- Fluorescent yellow green
- MUTCD W15-1
Shape and background first
Federal designation W15-1 in the MUTCD, the national standard every state signs to. Mounted near parks, schools with an attached play area, and residential streets bordering a public playground, often paired with a reduced speed plaque.
What the MUTCD specifies
Designation: W15-1
MUTCD Section 2C.56
Conventional road size: 30 x 30 in
Source: Federal Highway Administration, MUTCD 11th Edition (December 2023), Part 2, Table 2C-1, verified 2026-09-26.
How states handle it
A few states pair this sign with its own posted speed limit rather than relying on the general residential limit nearby.
What the test wants you to know
The mistake people make
The fluorescent yellow green background puts this sign in the same attention grabbing family as school and pedestrian signs, and that is the point: small children are the least predictable hazard on the road, so the color is chosen to stand out from an ordinary yellow warning.
