Slow Tractor, Double Yellow, and a School Bus
A driver is eastbound on a two-lane rural highway near Roswell at 8:10 a.m. The speed limit is 55 mph. Ahead, a farm tractor pulling a wide implement travels at 18 mph. The centerline is double solid yellow, and the road crests a hill about 400 feet ahead. The driver has followed the tractor for half a mile and is late for work. Oncoming traffic is light, but a white sedan is visible near the crest. Beyond the tractor, a school bus has stopped in the eastbound lane with its red lights flashing and stop arm extended; children are waiting on the shoulder. A tow truck with amber lights is parked on the opposite shoulder. The driver wonders whether the double yellow can be crossed to pass a slow vehicle, and what to do about the bus and the tow truck.
1. May she cross the double solid yellow to pass the 18 mph tractor?
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No. Double solid yellow means passing is prohibited for traffic in both directions. The tractor's low speed does not create an exception, and impatience is not a legal justification.
The physical facts make the answer even clearer: she is approaching a hill crest with limited sight distance, and a white sedan is already visible near the crest. Even where a passing zone exists, a driver may pass only when there is enough clear roadway to complete the maneuver safely. Here she cannot see what is coming over the crest, so she must stay behind the tractor and wait for a broken line and a genuinely clear stretch. Passing on a double yellow into a blind hill is the kind of decision that turns a delay into a head-on crash.
2. What must she do about the school bus with red lights and the extended stop arm?
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She must stop and stay stopped until the red lights stop flashing and the stop arm retracts. On an undivided two-lane road, traffic in both directions must stop for a school bus displaying red lights, not just the traffic behind it.
This applies even though the tractor is between her and the bus. The bus is in her direction of travel, children are on the shoulder, and the hazard is not limited to the lane the bus occupies. A child can move unpredictably, and the stop arm exists precisely to create a protected window. She should stop well back, leave room, and watch the children rather than the bus driver. Proceeding because the tractor is in front, or because she is late, is a violation and a serious safety risk.
3. How should she handle the tow truck with amber lights on the opposite shoulder?
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New Mexico's move-over law applies to stationary emergency and utility vehicles displaying flashing lights. On a multi-lane road, drivers should move over a lane if it is safe; if they cannot, they must slow down and proceed with caution.
Here the tow truck is on the opposite shoulder of a two-lane road, so there is no lane to move into. The practical response is to reduce speed, stay in her lane, and watch for a worker who might step into the roadway. The same logic that protects a police officer on the shoulder applies to a tow operator: the flashing amber lights signal a work zone, and the driver's job is to create a margin of error. She should not swerve into the oncoming lane to create distance, especially with the sedan near the crest.