생김새
A yellow diamond-shaped warning sign with a black legend reading ROUGH ROAD or a symbol showing a broken, uneven surface.
언제 보게 되나요
On stretches of road with potholes, cracks, or deteriorated pavement, common on older roads and near construction.
무엇을 해야 하나요
Slow down to keep control and reduce the risk of vehicle damage over the uneven surface.
출처: 통일 교통 통제 시설 매뉴얼(MUTCD) 제11판 — 미국 연방도로청(FHWA).