Night Work Zone: SLOW Paddle, a Pilot Car, and a Live Trench
You are northbound at 9:20 PM on a Thursday on a two-lane state route. A rectangular orange sign reads ROAD WORK AHEAD. About 1,000 feet later another reads ONE LANE ROAD 1,000 FT. Then a black-on-orange sign reads WORK ZONE SPEED LIMIT 35, although the permanent limit here is 45. A flagger in a high-visibility jacket stands beside your lane holding a STOP/SLOW paddle turned to show the SLOW face, with its orange light flashing. Beyond the flagger a pilot car waits, displaying FOLLOW ME. The temporary yellow center line has been shifted so your lane now runs along what used to be the shoulder, and there are no cones between your right tires and an excavated trench about 4 feet deep. A radar speed display beside the lane reads 41. Two cars behind you are tailgating.
1. The flagger's paddle shows SLOW and the light is flashing. What exactly do you do, and how does a flagger's authority compare with the posted signs?
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SLOW means proceed, but cautiously and prepared to stop - it does not mean stop and wait for a wave.
Your actions: reduce speed immediately to a crawl, keep both hands on the wheel, stay precisely in the shifted lane, and watch the flagger for a change to the STOP face or a hand signal. Do not stop dead in the lane unless the flagger turns the paddle or raises a hand; stopping when waved through creates a rear-end hazard with the two tailgaters behind you.
If the paddle were STOP: stop at the flagger and remain stopped until the paddle is turned to SLOW. Do not creep forward to "get a look."
Authority: a flagger directing traffic outranks the posted signs and the pavement markings. If the flagger waves you through a red or past a sign, the flagger's direction governs, because only the flagger knows what is happening around the corner.
2. Your speed display reads 41 in a posted 35 work zone, with workers present. Is 41 a problem, and what else in this setup should drive your speed choice besides the number on the orange sign?
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Yes, 41 is a problem on two independent grounds.
The 35 is regulatory. A black-on-orange WORK ZONE SPEED LIMIT sign sets an enforceable limit, not a suggestion like an advisory plaque. At 41 you are 6 over in a zone where New Hampshire enhances penalties for moving violations when workers are present - the fine exposure is higher than the same speed outside the zone.
The radar display is feedback, not authority. It is an advisory device telling you what the zone already posted; it does not create or relax the limit.
Basic speed law still applies on top of the 35. At night, with an unguarded 4-foot trench four feet from your right tires and a lane shifted onto old shoulder pavement, 35 may itself be too fast. Something in the high 20s, hugging the left side of your lane without crossing the temporary yellow line, is the defensible choice. The number sets the ceiling, not the target.
3. The pilot car is waiting ahead of you with FOLLOW ME displayed. Explain how to travel behind it, and what to do if you fall behind or the tailgaters behind you try to pass.
Read the worked answer
Follow at a real interval. Keep a few car lengths back - enough to stop if the pilot car brakes for a worker or equipment. Tailgating the pilot car defeats the protection it provides.
Stay in your lane and do not pass. The pilot car exists because the corridor is too narrow or too compromised for two-way traffic. Passing it puts you head-on into whatever the pilot car was shielding you from.
Do not stop to wave opposing traffic through. You do not control the corridor; the flagger and pilot car do. Improvised courtesy here is how head-on crashes happen.
If you lose the pilot car or it pulls away: stop in a safe spot and wait for it to return or for a flagger's direction. Do not continue on your own assumption that the road is clear.
Ignore the tailgaters. If they pass you and the pilot car, that is their violation. Do not follow them into an uncontrolled lane just because someone behind you is impatient.