Abstract: An equipment transport rack is mountable on the roof of a vehicle, and provides easy access for loading equipment thereon. The equipment payload is carried on a payload carrier mounted on a movable carriage assembly which has two operational positions. In the transport position, the payload is carried above the roof surface, thus avoiding interference with vehicle doors or windows and preventing safety hazards to passers by.In the loading position, the carriage assembly extends outwardly and pivots downwardly from the roof area to project the payload carrier at least partially below the height of the roof edge and roof surface. In the loading position, the equipment payload may be easily and conveniently loaded and unloaded from the rack by a user of average height standing next to the vehicle. When the loading or unloading is completed, the carriage assembly pivots upwardly and slides inwardly to be returned to the transport position, where it is latched in position prior to vehicle movement.