Hình dạng
A yellow diamond warning sign with a black arrow that snakes through several bends to show a series of curves ahead.
Khi nào bạn gặp
You encounter it before a stretch of road with three or more successive curves, typical of mountain passes and country roads.
Bạn phải làm gì
Reduce your speed before entering the section and stay alert through each curve, avoiding sudden steering or braking.
Nguồn: Sổ tay Thiết bị Kiểm soát Giao thông Thống nhất (MUTCD), ấn bản 11 — FHWA.
