A method for remotely controlling a plurality of vehicles includes receiving at an external control system, under an indexing mode of operation, a first signal from off-board vehicle indexing equipment. The method further includes establishing in the external control system a positioning mode of operation in response to the first signal. Further, under the positioning mode of operation, and in response to actuation of an interface of the external control system, the method includes sending from the external control system a second signal to a first vehicle of the plurality of vehicles, the second signal comprising a first command to adjust a throttle setting of first vehicle and a second command to idle a throttle of at least one second vehicle of the plurality of vehicles.