Every year, thousands of road workers direct traffic through construction and maintenance zones. Flaggers are often the first and last line of protection between moving vehicles and the work area. They face serious risks from distracted drivers, heavy equipment, and poor visibility. A moment of distraction, an unsafe position, or low visibility can quickly turn dangerous.
The Occupational Safety and Health Administration (OSHA) requires employers to follow the Federal Highway Administration’s (FHWA) Manual on Uniform Traffic Control Devices (MUTCD), which sets national standards for flagging and temporary traffic control operations. When flaggers stay trained, visible, and alert, they protect themselves, their coworkers, and the traveling public.
These tips help flaggers stay safe on Texas roads:
1 Use trained and certified flaggers.
Ensure every flagger completes a recognized training and certification program that meets OSHA and MUTCD requirements, such as courses approved by the Texas Department of Transportation. Ensure training covers a minimum of traffic control procedures, hand signals, hazards, and emergency actions.
2 Require high-visibility apparel at all times.
Flaggers must wear orange, yellow, or yellow-green retroreflective clothing that’s visible from at least 1,000 feet, day or night. Provide proper lighting at night so drivers clearly see the flagger’s position and signals.
3 Position flaggers in safe, visible locations.
Place flaggers on the shoulder or in a protected area — never in an open traffic lane. Remind flaggers to keep a clear line of sight and a safe escape path at all times.
4 Provide approved STOP/SLOW paddles.
Supply MUTCD-compliant paddles at least 18 inches wide with six-inch-high letters. Use flags only during emergencies or equipment failure.
5 Keep flaggers alert and focused on traffic.
Assign flaggers to traffic control only. Prohibit phones, food, and side tasks. Instruct flaggers to face oncoming vehicles and maintain awareness at all times.
6 Maintain communication between flaggers and the crew.
Provide radios and use a shared set of hand signals so flaggers and the crew can quickly report changing or unsafe traffic conditions.
7 Set up warning signs and devices before flagging.
Post advance warning signs such as “FLAGGER AHEAD” far enough in advance for drivers to slow down safely. Place cones, barricades, and guide signs according to MUTCD spacing guidelines for the road type and speed.
8 Remove or cover warning signs when work stops.
Cover or remove warning signs when flagging operations are inactive to prevent driver confusion.
9 Plan and practice emergency escape routes.
Keep each flagger station clear of obstacles. Ensure flaggers know exactly where to move if a vehicle fails to stop or loses control.
For more information on flagger or work zone safety, view:
- OSHA’s Highway Work Zones and Signs, Signals, and Barricades
- FHWA’s Work Zone Safety
- DWC’s Driving in Work Zones Fact Sheet (English/Spanish).
Or contact a DWC safety training specialist at SafetyTraining@tdi.texas.gov or 512-804-4610.