What does a “detour” sign inform drivers?

A "detour" sign is used to inform drivers that they need to change their route due to obstructions that prevent them from proceeding on the original path. This could occur due to construction, road closures, or other hazards that make the current route unsafe or inaccessible. The sign directs drivers to an alternative route that will safely lead them to their destination, ensuring they can continue their journey without unnecessary delays or hazards.

This sign plays a critical role in traffic management, helping to maintain the flow of traffic and reduce confusion caused by unexpected road conditions. It serves not only to communicate the obstruction but also provides a sense of direction, allowing drivers to navigate through work zones efficiently. Understanding the function of a detour sign is essential for both drivers and those involved in traffic management, as it underscores the importance of clear communication regarding road conditions.