Kentucky Road Signs Practice study materials
Kentucky Road Signs Practice study resources

Late for a Turn, Stuck Behind a Tractor on KY-80

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

All case studies

Late for a Turn, Stuck Behind a Tractor on KY-80

At 6:40 a.m. on a dry October morning you are southbound on KY-80, a two-lane rural route posted at 55 mph. For the last three miles you have followed a grain tractor running 18 mph, and eleven cars are stacked behind it. At the crest of a hill you pass a yellow 'Reduced Speed Ahead' sign; about 400 feet later a white 'Speed Limit 45' sign stands at the entrance to a small community. Beyond that sign, your lane is bounded by a solid yellow line while the opposing lane has a broken yellow line for roughly a quarter mile, then two solid yellow lines resume. Your turn onto KY-363 is 0.4 mile past the 45 sign, and you are running late. The tractor is still ahead of you, doing 15 mph, and the driver has not signaled any turn.

1. At what point does 45 mph become the enforceable limit, and is there any violation in passing the 'Reduced Speed Ahead' sign at 55?

Read the worked answer

The 45 mph limit becomes enforceable at the white rectangular SPEED LIMIT 45 sign, not at the yellow warning sign. Shape and color carry the legal meaning: a yellow diamond warns of a condition ahead, while a white rectangle with black legend is regulatory and takes effect at the point where it is posted. The 'Reduced Speed Ahead' sign exists to give you braking distance - 400 feet at 55 mph is roughly five seconds - so the intent is that you are already at or below 45 as you pass the regulatory sign, not braking hard after it.

Passing the warning sign at 55 is not itself a speeding violation, because no lower limit yet applies to that segment. But if you are still above 45 at the regulatory sign, you are speeding from that sign forward. A panic stop at the sign is also evidence that your approach speed was unreasonable for the change, which matters if a crash occurs. Practical rule: the yellow sign starts your deceleration, the white sign is the legal line.

2. May you pass the tractor anywhere in this stretch? Explain what each line pattern tells you.

Read the worked answer

No - the marking pattern never gives you a legal passing zone here.

  1. Where your side has a solid yellow and the opposing side has a broken yellow, the broken line authorizes the oncoming direction to pass, not you. It also means an oncoming vehicle may legally be in your lane; hold your position, keep speed steady, and do not drift toward the centerline to 'claim' space.
  2. Where both lines are solid, neither direction may pass.
  3. The tractor's low speed is not an exception. No statute creates a right to cross a solid yellow because the vehicle ahead is slow or because eleven cars are behind you.

What you can do is manage the risk: increase following distance so the queue behind you can see around your vehicle, and stay patient until a broken yellow appears on your side with clear sight distance. If the shoulder is wide and paved and the tractor pulls over, that solves it - but do not pressure the driver by tailgating. A head-on crash while overtaking on a solid line is one of the most lethal outcomes on a two-lane rural route.

3. The tractor driver waves you around, and the oncoming lane looks clear for a quarter mile. Are you permitted to cross the double solid yellow?

Read the worked answer

No. A civilian hand signal conveys no authority to disregard a pavement marking or a sign. Only a uniformed law enforcement officer, or a flagger or other authorized traffic control person directing traffic in a signed work zone, can lawfully order you to cross a solid line or ignore a regulatory device.

Two further problems with accepting the wave:

  • The tractor driver's sight line is not yours. From a high cab at the crest of a hill, that driver may be seeing over the rise that you cannot see past, especially with a turn 0.4 mile ahead where a vehicle could be slowing.
  • If a crash results, the wave is not a defense. The citation and the civil liability fall on the driver who crossed the marking.

Correct response: acknowledge nothing, stay back, and wait for a broken yellow on your side with verified clear distance. If you are late, the delay is a scheduling problem, not a reason to accept a risk you cannot see through.