限速标志
MUTCD R2-1
行车速度不得超过标示的限速。
标志外观
A vertical white rectangle with black legend reading SPEED LIMIT above the maximum posted number in large black figures.
什么时候会见到
Posted along highways, arterials, and residential streets, especially where the legal maximum speed changes.
该怎么做
You must not drive faster than the number shown, and you should go slower when weather, traffic, or road conditions demand it.
相关标志
来源:《统一交通控制设施手册》(MUTCD)第 11 版 — 美国联邦公路管理局(FHWA)。