Temporary Road Closure and Detour Setup Safety

Key Hazards

• Workers struck while installing or removing traffic-control devices
• Drivers entering a closed road because warnings are missing or unclear
• Conflicting routes at intersections, driveways, businesses, or residences
• Emergency vehicles or local access blocked by the closure
• Pedestrians and cyclists diverted into unsafe travel paths
• Devices displaced by weather, traffic, construction activity, or vandalism

2–3 Minute Talk Script

A temporary road closure changes a route that drivers, pedestrians, residents, and emergency responders may use every day. The closure should follow an approved traffic-control plan that identifies advance warning, decision points, closure limits, detour routing, access needs, and removal steps.

Device installation and removal expose workers directly to traffic. Crews should use a planned sequence, appropriate vehicles and warning systems, and work from protected positions whenever possible rather than carrying devices through active lanes without protection.

Advance-warning signs should give road users enough time to choose another route before reaching the closure. Signs and barricades should be visible, stable, correctly oriented, and free from conflicting or outdated messages.

Intersections, side streets, alleys, driveways, businesses, schools, and residences may require additional controls. The crew should understand which local traffic is permitted and how authorized vehicles can enter and leave without defeating the closure.

Emergency access should be coordinated before the road is closed. Gates, barricades, equipment, and material should not be positioned so that police, fire, ambulance, or utility response is delayed unexpectedly.

Pedestrian and bicycle routes should remain usable or be detoured through a safe and accessible path. People should not be directed into moving traffic, heavy equipment areas, open excavations, or surfaces that cannot be used safely.

The closure should be inspected throughout the work. Wind, rain, snow, traffic, deliveries, and unauthorized movement can shift devices or create gaps that allow drivers to enter the work space.

When the closure is removed, devices should be taken down in the approved order while workers remain protected. Covered or turned signs should be restored correctly so road users are not left with confusing or contradictory directions.

Safety Reminders

• Follow the approved closure and detour plan.
• Install and remove devices using a protected sequence.
• Provide clear advance warning before decision points.
• Coordinate local, business, residential, and emergency access.
• Maintain safe pedestrian and bicycle routes.
• Inspect and correct displaced or confusing devices.
• Remove the closure only when the roadway is ready for traffic.

Ask the Crew

• Where must drivers make their last safe detour decision?
• Which local and emergency vehicles require access?
• How will pedestrians and cyclists move around the closure?
• Who will inspect the closure during the work?
• What sequence will protect workers during removal?