생김새
A yellow diamond-shaped warning sign with a black legend reading GROOVED PAVEMENT.
언제 보게 되나요
On road sections that have been ground down or textured, usually ahead of resurfacing work in a construction zone.
무엇을 해야 하나요
Expect a rougher ride and reduced traction; slow down and, if riding a motorcycle, use extra caution over the grooved surface.
출처: 통일 교통 통제 시설 매뉴얼(MUTCD) 제11판 — 미국 연방도로청(FHWA).
