What does a reverse curve look like?

[McDominic]

A reverse curve involves a sharp left turn followed immediately by a sharp right turn (forming an "S" shape). Here is more information about reverse curves: 1. Location: The reverse curve traffic warning sign is placed at an appropriate position before two adjacent curves with opposite directions; the continuous curve traffic warning sign is placed before a road with three or more consecutive curves. Continuous curves are extremely dangerous, and improper driving or excessive speed can easily lead to severe accidents, including fatalities. 2. Purpose: The reverse curve traffic warning sign is used to alert drivers to reduce speed and drive safely, with a recommended speed not exceeding 60 km/h. These signs are commonly found in mountainous areas.