Right Turn, a Box Truck at the Door, and a Tight Curb Return
You are turning right from a four-lane arterial onto a two-lane street with your tractor and two 28-foot pups. The curb return is tight, about 15 feet, and the stop line sits 10 feet back from the corner. A box truck has pulled up in the lane to your left, its front bumper even with your door. A pedestrian is waiting on the corner. To keep the rear pup off the curb you know you need to start the turn from well left in your lane, maybe over the line; without that room, the last pup will cut the corner. There is a light pole 8 feet from the curb on the far corner, and traffic behind you is starting to close up. The light turns green and the box truck does not move.
1. What is your plan for this turn, and what do you do about the box truck?
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You do not have the room this turn requires, so you do not start it. The rear pup tracks inside the tractor's path, and without starting from the left your last unit's right rear wheels cross the curb and can take out the light pole or a pedestrian. The correct move is to hold position and let the truck clear, then re-position left before you commit. If it will not move and traffic builds behind you, the answer is still not to force it - wait, or take another route. A horn behind you is not a reason to clip a curb with a loaded pup: you cannot see your last axle from the seat and you will not feel a curb strike in a 78,000-lb combination. Before the wheels turn, check both mirrors, the crosswalk, and the space you need on the far side.
2. How do you judge whether the last pup will clear the curb and the pole?
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Offtracking is the gap between the path of the front axle and the path of the rear axles. A 28-foot pup's axles cut in less than a 53-foot trailer's would, but you have two trailers and a dolly, so each hinge adds a little more cut and the second pup follows the first rather than the tractor. Practically: set up from the left of your lane, begin the turn later than you would in a car - when your tractor's drive axles reach the corner - and keep a slow, steady speed so the trailers track instead of snapping around. Watch the pup's right tires in the right mirror all the way through, and watch the dolly's front tires, which swing left across the line. If the pup's right side is not visible in the mirror, your mirrors are not set for this turn; fix them before you move.
3. The pedestrian steps into the crosswalk on your right just as you begin to move. What now?
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Stop before the crosswalk. Your rear unit sweeps the crosswalk area even when the tractor has cleared it, so a green light does not make the turn safe. The governing rule is that you do not begin a turn you cannot finish: before the wheels turn, confirm the crosswalk is clear, the stop line gives you room, and the receiving lane has space. Once the pup is already in the intersection, stopping mid-turn creates its own hazard, so the decision point is before the turn, not in it. Hold short, let the pedestrian cross, recheck the box truck and both mirrors, and start over from the left-hand setup. If the light cycles, wait for the next one; nothing about a schedule justifies a pedestrian contact you cannot see from the cab.