Stale Green, Glare, and a Left-Turning SUV
A rider approaches a signalized intersection at 35 mph in the right lane of a two-lane one-way street. The light has been green since the rider first saw it 12 seconds ago, and the rider is 180 feet from the stop line. A silver SUV waits in the opposing left-turn lane with its wheels straight but its front bumper slightly over the crosswalk line. The sun is low and directly behind the rider, putting the SUV driver’s windshield in glare. A pedestrian stands on the right corner, facing away from the road, wearing headphones. The rider’s lane is clear for 200 feet behind. The speed limit is 35 mph, and the yellow signal is timed for 3 seconds.
1. What is the safest speed and lane-position plan for the next 180 feet?
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Treat the stale green as a signal that may change. At 35 mph the rider is covering about 51 feet per second, so 180 feet is only about 3.5 seconds from the stop line. The rider should reduce speed, cover both brakes, and scan the intersection rather than committing blindly. Lane position should balance two threats: the left-turning SUV and the pedestrian on the right corner. Moving slightly to the right increases space from the SUV’s turn path, but moving too far right reduces space from a pedestrian who might step out. A center-right position, reduced speed, and a planned stop are reasonable. The rider should also check mirrors for the traffic behind before braking hard. Eye contact with the SUV driver is unreliable because of glare, so the rider must plan as if the driver has not seen the motorcycle.
2. At 80 feet from the stop line, the light turns yellow. How does the stop-or-go decision differ at 35 mph versus a reduced 25 mph?
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At 35 mph, reaction distance alone is roughly 38 feet if the rider takes about 0.75 seconds to react. Braking distance on dry pavement is roughly 60 feet, so total stopping distance is close to 98 feet. From 80 feet, a clean stop is not realistic without skidding or locking a wheel. The rider should proceed through the intersection if it is clear, while watching the SUV and pedestrian. At 25 mph, reaction distance is about 27 feet and braking distance about 35 feet, for roughly 62 feet total. From 80 feet, a controlled stop is feasible. This is why slowing early on a stale green matters: it converts a forced go into a available stop. The rider should not grab the brakes suddenly at 35 mph in response to the yellow.
3. How should the sun glare and the SUV’s bumper position change the rider’s escape plan?
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The glare means the SUV driver may be looking into bright light and may not see the motorcycle, so the rider should not rely on being noticed. The bumper over the crosswalk line suggests the SUV may already be creeping or positioned to turn. The rider should cover the brakes, slow enough to stop if the SUV turns, and identify an escape path. A slight right-of-center lane position gives more distance from the SUV’s initial turn path, but the rider must not crowd the pedestrian. If the SUV begins to turn, the rider’s best response is usually to brake firmly in a straight line rather than swerve toward the pedestrian or into oncoming traffic. If stopping is impossible, a controlled swerve behind the SUV may be considered only if the lane and traction allow it.