Speed Limit Sign
regulatory sign · rectangle v · white
The maximum legal speed under ideal conditions. You must drive slower when conditions are poor.
- Visual breakdown
- Vertical white rectangle with black text: SPEED LIMIT above a large number.
- Shape recognition
- Vertical rectangle = regulatory rule you must obey, not a suggestion.
- Color recognition
- White with black text = the law. Yellow speed signs, by contrast, are advisory.
- Memory trick
- White = the law in black and white. Yellow = friendly advice.
- Real-world example
- A 55 mph limit in heavy rain doesn't mean 55 is legal — the basic speed law still requires a safe speed for conditions.
- Common mistakes
- Believing the posted limit is always legal regardless of weather, or confusing advisory (yellow) curve speeds with enforceable limits.
- Quick recall method
- White rectangle = enforceable maximum, ideal conditions only.
Practice this sign
1 practice question cover this sign.
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