Which term refers to the control of traffic through a project site to ensure safety for vehicles and construction personnel?

• A. Maintenance of Traffic
• B. Military Loading
• C. Modular Joint
• D. Movable Bridge

Answer: (A)

Maintaining safe, orderly traffic through a project site is addressed by maintenance of traffic. This concept covers planning and implementing traffic control measures so vehicles and construction personnel are protected while work is underway. It involves a traffic control plan with signs, barriers, channelizing devices, and lighting as needed, plus detours, lane closures, speed reductions, and work-zone phasing to keep at least a workable flow of traffic and clearly guide road users around the active area. The goal is to minimize risk and disruption, coordinating with workers and changing conditions as the project progresses.

The other terms refer to different aspects of bridge work. Military loading is about design loads for structures under specific conditions, not about managing traffic in a work zone. A modular joint is a physical joint between bridge deck segments, not a traffic control concept. A movable bridge is a type of bridge that can be opened or shifted to allow vessel passage, which is a structural feature rather than a method for directing traffic through a site.