Ohio Road Signs Practice study materials
Ohio Road Signs Practice study resources

Flagger, Pilot Car, and the 45 Sign That Isn’t Enough

Ohio Road Signs Practice · Put your knowledge to work in context.

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Flagger, Pilot Car, and the 45 Sign That Isn’t Enough

It is midday and dry. You are on a two-lane rural Ohio road posted 55 mph, towing a small trailer. Orange signs read “ROAD WORK AHEAD” and “ONE LANE ROAD 1,000 FT.” A work-zone speed plaque says 45 mph. Ahead, a flagger holds a STOP/SLOW paddle turned to SLOW and gives a small beckoning wave; a pilot car waits. Orange drums taper into the closed lane, with a buffer before workers on the shoulder. A side road on the right is blocked by a barricade with a “ROAD CLOSED” sign, and a worker with a shovel stands near the edge. The flagger’s wave is not a large arm swing, and the pilot car has not yet moved. Your trailer makes braking and lane changes slower, and you are unsure whether the 45 mph plaque is enforceable.

1. The flagger is displaying SLOW and waving you forward. What does that authorize, and what speed should you choose with the trailer?

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The flagger is an authorized traffic control device in the work zone. SLOW means proceed cautiously into the controlled area, not resume normal speed. The 45 mph plaque is the work-zone maximum, but it is still a maximum; with workers on the shoulder, a narrow buffer, orange drums, and a trailer behind you, a lower speed is reasonable. The small beckoning wave does not mean “hurry.” Release the brake smoothly, keep the trailer aligned, and be ready to stop if the flagger changes the paddle or the pilot car stops. The flagger’s direction controls your movement even though the normal road limit is 55 mph.

2. How closely should you follow the pilot car, and may you pass it or the equipment?

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Follow the pilot car at a safe distance, not tightly. The pilot car is leading you through a one-lane closure and protecting you from oncoming traffic; if you crowd it, you lose stopping room and may force a chain reaction if it brakes for a worker or equipment. With a trailer, your stopping distance is longer, so leave more space than you would in a solo car. Do not pass the pilot car, the drums, or the equipment inside the closure. If the pilot car stops, you stop behind it. Passing in a flagger-controlled work zone is not a judgment call you may make on your own.

3. You want to turn around using the barricaded side road. What do the barricade and ROAD CLOSED sign mean, and what should you do instead?

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The barricade and ROAD CLOSED sign mean the side road is not open to your vehicle; they are not a suggestion to squeeze around. Driving around a barricade can put you into fresh pavement, a trench, or workers on foot, and the worker with the shovel is not standing there to grant permission. Continue through the work zone under the flagger’s control and find a legal turnaround beyond the closure, such as a parking lot or a side street that is actually open. Do not make a U-turn in the travel lane or use the buffer area as a turn lane; those spaces are part of the traffic-control layout.