Protecting Road Workers and Stopped Traffic in Work Zones

Recognize the people behind the equipment

A worker’s reflective clothing improves visibility but does not create a physical barrier. Cones identify a boundary; they cannot stop a truck. Give the crew the space provided by the traffic plan, and expect workers or construction vehicles to move within their assigned area.

Pennsylvania’s transportation agencies document vehicle intrusions into work areas and emphasize protection for both workers and road users. 1 Those intrusions explain why a crew needs drivers to remain attentive even when no one appears directly beside the travel lane. The next worker may be hidden by a machine or beyond a temporary barrier.

Approach the queue as a separate hazard

Stopped traffic can begin well before the first visible worker. Scan ahead for brake lights, warning signs, and a developing slowdown. Reduce speed early and maintain extra following distance rather than closing the gap while searching for the cause of the delay. FMCSA specifically highlights rear-end crashes and the need for additional space in work zones. 2

When stopping, leave a useful buffer from the vehicle ahead and monitor approaching traffic behind without losing attention to the front. Use hazard warnings when appropriate under applicable rules and carrier procedures. Do not pick up a phone because the queue has stopped; traffic may move unexpectedly, and temporary traffic stops are still part of driving.

Respect the protected work area

Never use a closed lane, shoulder, or gap between cones to get around the queue. Keep clear of buffer spaces and protective vehicles, including trucks carrying impact attenuators. Their purpose is to reduce exposure to an errant vehicle, not to mark an opening for deliveries or passing.

Follow authorized flagger directions and stop at the designated point. Avoid creeping toward a person holding traffic. Do not honk, gesture angrily, or pressure a worker to release the line early. The flagger may be protecting an equipment movement or a second crew that the driver cannot see.

Handle delivery pressure without transferring the risk

If a customer’s driveway falls inside the work area, arrange access through the appropriate site contact and dispatch. Do not drive into a construction entrance because it appears to be the shortest route. A safe alternative may require delaying the stop or approaching from another direction.

Communicate the delay once safely parked, using factual information about the closure and access problem. Dispatch can then reset expectations without asking the driver to negotiate informally with a moving crew. Protecting workers requires the whole delivery operation to accept that some delays are unavoidable.

Continue cautiously after passing the most visible equipment. A worker walking back to a vehicle or a queue releasing unevenly can create another conflict. The measure of a successful trip through the zone is straightforward: the crew keeps working safely, the people in line remain protected, and the delivery truck leaves without having consumed anyone else’s margin for error.