Traffic Control Safety

• Workers struck by passing vehicles
• Insufficient warning distance for drivers
• Blind spots around work vehicles and equipment
• Changing traffic patterns near crews
• Distracted or aggressive drivers entering work zones
• Reduced visibility during low-light or poor weather conditions

Traffic control is more than placing cones or signs around a work area. Crews working near roadways are exposed to constantly changing traffic conditions, distracted drivers, blind spots, and limited reaction time.

Many roadway incidents occur because drivers do not recognize a work zone early enough to slow down or adjust their path safely. Improper cone spacing, blocked sight lines, parked vehicles, and poor lighting increase exposure for workers on foot.

Traffic control setups should account for vehicle speed, lane width, visibility, weather conditions, hills, curves, intersections, and nearby pedestrian activity. Conditions can change quickly throughout the workday.

Workers should avoid turning their backs to traffic whenever possible and maintain awareness of moving vehicles, backing equipment, and approaching traffic at all times.

Temporary traffic control devices should remain visible, upright, and properly spaced throughout the operation. Wind, traffic, equipment movement, and shifting work areas can quickly reduce the effectiveness of the setup.

Communication between spotters, equipment operators, drivers, and ground crews is critical during roadside operations. Crews should know where workers are positioned before vehicles or equipment move through the work area.

If traffic conditions become unsafe, visibility decreases, or the work zone no longer provides adequate protection, work should stop until conditions can be corrected.

• Inspect traffic control setups throughout the shift.
• Maintain worker visibility near active traffic.
• Watch for distracted or aggressive drivers.
• Adjust work zones for changing conditions and visibility.
• Keep cones, signs, and barriers properly positioned.
• Use spotters and clear communication near moving equipment.
• Stop work if roadway conditions become unsafe.

• Are drivers receiving enough warning before reaching the work area?
• Have weather, lighting, or traffic conditions changed during the operation?
• Can all workers clearly identify traffic flow and escape paths?
• Are parked vehicles or equipment blocking visibility?
• Is the work zone still providing adequate protection for crews?