When an alternate route is established, what should the traffic control worker do?

Answer: C — Familiarize themselves with the route to answer questions from drivers.

When a detour is put in place, traffic control workers must be ready to help drivers with accurate directions and information. The key step is to become familiar with the alternate route—knowing where to point motorists, which signs or barricades are guiding them, the turns and mileages, and any potential hazards along the way. This preparation lets the worker answer driver questions quickly and confidently, reducing hesitation, preventing wrong turns, and keeping traffic moving safely through the work zone. Directing everyone back to the main route ignores the reason for the detour and can overload the primary roadway, creating unsafe conditions. Closing the alternate route abruptly can trap drivers and cause sudden, dangerous back-ups. Ignoring the new route and continuing as before ignores the change altogether, which jeopardizes safety for drivers and workers. Being knowledgeable about the detour is the best way to support safe, efficient traffic flow.