Abstract: A dolly has a frame; a plurality of rolling elements mounted on the frame for rotation about respective rotational axes generally parallel to the ground surface and defining a contact footprint of the dolly on the ground surface. The axes extend in a plane between a load contacting surface of the dolly and the ground surface at a distance between 30% and 50% of a height defined between the load contacting surface of the dolly and the ground surface. A swivel platform defines the load contacting surface extending at an elevation above the frame and mounted on the frame for rotation about a platform axis located within the contact footprint. An actuator unit is drivingly engaged to at least two rolling elements of the plurality of rolling elements, the at least two rolling elements disposed on opposite sides of the swivel platform. An on-board controller unit is operable to actuate the actuator unit.