Work Zone Traffic Control Basics

Why it matters

When your work zone touches a road, every passing car is a hazard doing 45 in a 25. Drivers are distracted, sun-blinded, and annoyed by the cone line, and workers get comfortable stepping past it. OSHA requires signs, signals, and barricades conforming to the MUTCD, the federal traffic control manual. Today: the zone layout, the buffer that saves lives, and never trusting a driver you have not made eye contact with.

Hazards

• ⚠ Intrusions: vehicles entering the work zone through the taper
• ⚠ Workers stepping outside the protected area for tools and material
• ⚠ Equipment backing inside a tight zone with foot workers
• ⚠ Poor visibility at dawn, dusk, and in sun glare
• ⚠ Missing or faded signs giving drivers no warning
• ⚠ Short tapers and no buffer space between traffic and the crew

Controls and safe practices

• ✓ Set up to the traffic control plan and MUTCD: advance warning signs, taper, buffer, work space.
• ✓ Keep the buffer space empty: no workers, no equipment, no material staged in it.
• ✓ High-visibility apparel meeting the class required for the road speed, worn zipped and clean.
• ✓ Face traffic when possible, and never turn your back to the taper without a lookout.
• ✓ Equipment inside the zone uses spotters; the zone does not make backing safe.
• ✓ Check the setup during the shift: cones drift, signs fall, and sun angles change.
• ✓ Night work adds lights and retroreflective everything, per the plan.

Crew discussion questions

1. Who set up our zone today, and does it match the traffic control plan?
2. Where is our buffer space, and what is sitting in it right now?
3. What is the escape path if a car comes through the cones?
4. What time of day is visibility worst at this location?

Applicable OSHA standards

29 CFR 1926.200, 29 CFR 1926.201, 29 CFR 1926.202

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