Single-Lane Roundabout With a Pedestrian and a Long Truck
You approach a single-lane roundabout on a two-lane road. At the entry there is a yield sign and, just before it, a yellow diamond sign showing a pedestrian. A car is already circulating and will cross your entry path from the left. A pedestrian is walking toward the crosswalk on your right, about 20 feet from the curb. A box truck ahead of you has just entered and is straddling both the left and right portions of the circulating lane because of its length. Your destination is the second exit, straight ahead. Traffic behind you is moderate and closing.
1. What does the yield sign require of you at the entry, and where do you aim the car?
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A yield sign means slow down, look left, and give way - it does not require a stop when the circle is clear, and it does not give you a turn to "merge boldly." The circulating car coming from your left has the right of way; you enter only into a gap that does not make it change speed or direction.
Aim: enter to the right and travel counterclockwise around the central island, staying in the single circulating lane. Pressure from the traffic behind you does not convert a yield into a merge - a rear-end bump is cheaper than a side impact in the circle.
2. How does the pedestrian change your approach - before you enter and after you are in the circle?
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The yellow diamond is a warning sign, not a control: it tells you a crosswalk is there and to expect people in it. The legal duty comes from the crosswalk itself.
Before entering: if the pedestrian is at or stepping into the crosswalk across your entry, stop before the crosswalk and let them clear. Do not roll forward to "claim" the entry.
After entering: you owe the same yield at the crosswalk on your exit leg. If someone is waiting there, stop before the crosswalk rather than in the circulating lane - stopping mid-circle to wave someone across blocks the circulating car behind you and creates a rear-end risk. Pedestrians in a marked crosswalk have the right of way in both spots.
3. The box truck is straddling both sides of the lane. Can you slip past it inside the circle?
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No. In a single-lane roundabout there is no second lane to pass in, and a long truck straddling the lane is not being sloppy - its rear wheels track inside the front wheels, so it needs the full width to keep its trailer or box off the curb and the island.
Hanging alongside puts you in the driver's blind spot and in the space the rear of the truck is about to occupy. The correct move is to hang back, give the truck room to complete its arc, and accept the delay. A few seconds of patience is the entire cost of the decision; the alternative is being squeezed against the curb or the island by a vehicle that cannot see you.