Which factors must be evaluated regarding traffic when setting up a work area?

• A. The color of road signs.
• B. Volume and speed of vehicular, bus, and bicycle traffic.
• C. Employee shift schedules.
• D. The proximity to a grocery store.

Answer: (B)

Evaluating traffic conditions around a proposed work zone is essential for choosing the right safety controls and protecting both workers and the traveling public. The best factor to consider is the volume and speed of traffic, including cars, buses, and bicycles. Knowing how many vehicles are moving and how fast they travel helps determine the level of traffic control needed—such as the number and placement of barriers, signs, and flaggers—and how much buffer space to give workers.

Accounting for buses and bicycles is important because they have different movement patterns and stopping distances. A work zone near bus routes or bike paths may require wider buffers, clearer lane guidance, or detours to accommodate vulnerable road users and reduce the risk of conflicts.

Other options don’t directly inform how to set up the work area’s traffic controls. The color of road signs affects visibility but not the overall traffic conditions you must adapt to. Employee shift schedules influence staffing, not the traffic hazards themselves. Proximity to a grocery store doesn’t affect traffic dynamics relevant to the work zone setup.

So, prioritizing the analysis of how many vehicles travel through the area and how fast they’re moving (and including buses and bicycles) leads to the most appropriate, safer arrangement for the work zone.