Abstract: The present disclosure relates to an apparatus for moving a dolly longitudinally along its base. The apparatus comprises a first motorized drive that transmits a drive from a motorized unit to a first rotating axle mounted on the apparatus. A second motorized drive transmits the drive from the first rotating axle to the dolly, thereby moving the dolly longitudinally along the base. The apparatus is environmentally friendly and may be operated in a wide range of temperatures, including in sub-freezing climates.

Abstract: The present disclosure relates to a structure, a safety apparatus and a kit for safeguarding workers located atop a freight vehicle. The structure comprises a base and a top rail supported by the base. The top rail is in overhanging placement relative to the base so that the vehicle may be positioned adjacent to the structure and underneath the top rail. Safety equipment may be attached to a moveable attachment point supported by the top rail so that workers may wear the safety equipment and walk along a length of the vehicle while being protected from an eventual fall.