Originally Posted by Starpoint

Thorn, my father worked for Southern Pacific for 45 years and they have remote control switch engines. Like an RC car but bigger. The engine is speed limited to 3 miles an hour and the remote has sensors that would indicate if it was tipped/dropped etc.. Basically if the guy with the remote fell down the engine stops.

The savings for all this is no CAB and less people to assemble or dis-assemble a train.