Abstract: This invention relates to a transportation system comprising vehicles moved on a conveyor, guided and partly supported by wheels rolling on a guiding rail, and provided with at least one braked wheel coming into contact with braking ramps transferring the vehicles from the conveyor to stations, and with launching ramps transferring the vehicles from the station to the conveyor. A load carrying platform is connected at its corners by vertically elastic coupling members to an underframe wherein supporting and guiding members are fastened, transmitting its weight to a center of articulation where it leans on the underframe; and a braking assembly is located straight below the center of articulation in such a manner as to transmit the leaning reaction to braking members liable to come into contact with longitudinal track components.