Following a Gravel Truck on a Two-Lane Highway
A rider is on a two-lane rural highway with one lane in each direction, traveling at 55 mph behind a flatbed truck loaded with loose gravel. The truck has been losing small stones for the last mile. The rider is 1.5 seconds behind. The wind is gusting from the left at 20 mph. The center of the rider's lane has a dark oily strip; the right edge has fresh chip seal and a 4-inch drop-off. Oncoming traffic is intermittent, and a curve 400 feet ahead limits sight distance. The rider wants to pass before the curve and asks where to position the motorcycle, how far back to stay, and when to pass. The motorcycle is a 650 cc adventure bike with knobby tires and a tall windscreen.
1. Evaluate the rider's following distance and lane position.
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A 1.5-second gap is too close behind a truck shedding gravel. Increase to at least 3 seconds, and more if stones are bouncing or visibility is poor. The center oily strip reduces traction, especially when wet, so avoid riding there. The right edge has chip seal and a drop-off, so do not hug the edge. The left portion of the lane gives better forward visibility and room to avoid debris, but the left crosswind will push the bike; the rider should lean slightly into the wind and be ready to correct. Position for escape and sight distance, not a fixed lane stripe.
2. What should the rider consider before passing the truck?
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Before passing, the rider needs a clear view, a legal passing zone, and enough time to complete the pass before the curve. The curve 400 feet ahead limits sight distance, and oncoming traffic is intermittent. Passing before a blind curve is a bad bet even if the dashed line allows it. The rider should wait until the road straightens, check mirrors and blind spot, signal, accelerate decisively, and return to the lane only when the truck is visible in the mirrors. Do not pass if oncoming traffic appears or the curve remains close.
3. How do wind and road surface affect the choice?
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The 20-mph left crosswind pushes the motorcycle right; the rider must lean into the wind and avoid a sudden correction near the truck. The oily center and chip-seal edge both reduce traction, so hard braking or swerving should be avoided unless necessary. Knobby tires help on loose gravel but do not cure poor lane position. The tall windscreen can catch crosswind and make the bike feel unstable. The rider should reduce speed, increase the gap, and keep a stable line until the pass is safe.