What is dangerous about switchbacks?

Switchbacks can be dangerous due to their sharp turns and steep gradients, which can increase the risk of losing control for vehicles, especially in adverse weather conditions. They often require drivers to navigate tight corners without a clear view of oncoming traffic, leading to potential collisions. Additionally, cyclists and pedestrians may be at risk if they are not visible to drivers approaching a switchback. The combination of limited visibility and sharp angles necessitates heightened caution for all road users.