The present invention relates to a method of changing the direction of motion of a pallet at an end of a transport conveyor while maintaining the pallet at a substantially constant attitude. The method comprises conveying pallets in a passenger transport direction and at a first level, conveying pallets in a return direction and at a second, different level, positively guiding a trailing end of a first pallet with respect to its direction of motion with a supporting element, and rotating the supporting element with a second pallet located immediately behind the first pallet with respect to the direction of motion, thereby moving the trailing end of the first pallet from one of the first level and the second level to the other of the first level and the second level and changing the direction of motion of the first pallet.