Which term includes devices such as signs, barricades, detours, or flagmen used to regulate vehicle movement?

• A. Traffic Control
• B. Traffic Signage
• C. Vehicle Movement Regulation
• D. Roadway Management

Answer: (A)

Traffic control refers to the use of devices and personnel to regulate the flow of vehicles and keep traffic moving safely. It includes signs, barricades, detours, and flaggers, which are all tools used to guide where vehicles can go, when they should stop, or slow down—especially in work zones, around hazards, or during changes in traffic patterns. This makes it the most precise term for describing the whole set of methods that actively manage vehicle movement.

Traffic signage focuses only on the signs themselves, not the broader mix of devices and personnel. Vehicle movement regulation sounds generic and isn’t a standard term used to describe these specific controls. Roadway management covers planning and maintenance of the road network, not the active regulation of traffic with temporary devices and personnel.