What is a switchback?

A switchback, also known as a hairpin turn or zigzag, is a sharp bend in a road or path that allows vehicles or pedestrians to change direction in a steep or mountainous area. Switchbacks are typically constructed to make it easier for vehicles to navigate steep terrain by reducing the steepness of the incline and allowing for a safer descent or ascent.

Switchbacks are commonly found in mountainous regions where the terrain is too steep for a straight road to be constructed. They are often used in hiking trails, biking trails, ski slopes, and mountain roads. Switchbacks are designed with a tighter radius than a typical curve in order to minimize the gradient of the road and make it easier to navigate.

Switchbacks can vary in length and number depending on the terrain and the engineering requirements of the road or trail. They are often marked with warning signs to alert drivers or hikers of the sharp turn ahead. Proper use of switchbacks can help prevent erosion, reduce the impact on the environment, and improve safety for travelers in challenging terrain.