Abstract: In a system wherein a vehicle can be remotely controlled from any one of a plurality of control devices, each of which can emit operation command signals to the vehicle, each control device can also emit switching signals, each designating one of the other control devices and assigning control to the one designated. Each control device emits its signals in a mode unique to it, and the vehicle has a receiver for each control device, capable of receiving only signals from its control device, and a switching circuit connected with each receiver. Each switching circuit has an enabled and a disabled condition. When enabled, it carries operation signals from its receiver to actuating means whereby commands signified by operating signals are executed.