Abstract: A path for an autonomous tractor to move a trailer from a start spot to an ending spot has at least one path segment and a variation indicator that indicates a path variant for the autonomous tractor to follow for the path segment. The autonomous tractor follows the path variant to reduce wear caused by repetitive use of the same path by the autonomous tractor. The path variant may be selected as a least frequented path variant or may be selected as having carried the least amount of weight.

Abstract: In embodiments, a method positions and aligns an autonomous tractor coupling with an articulated trailer located in a pick-up spot. A staging path that terminates at a staging point corresponding to the pick-up spot is determined, and the tractor is controlled to follow the staging path to the staging point and then couple with the trailer. In embodiments, a method positions and aligns an autonomous tractor coupled to an articulated trailer in preparation for the tractor to reverse the trailer into a drop-off spot. A staging path having a shape and a staging point is determined, and the autonomous tractor is controlled to follow the staging path to the staging point. The staging path is shaped such that, after following the staging path to the staging point, the tractor and trailer are positioned for reversing into the drop-off spot.