As the lead locomotive nears the midpoint, the gate there opens, and the eastern one is closed.
Two flatcars pushed in front of the lead locomotive carried rails and equipment for track repairs.
This is to be repeated as necessary until the lead locomotive fully occupies the crossing.
The locomotives are often radio controlled from the lead locomotive by the Locotrol system.
The lead locomotive and its "event recorder" or black box were retrieved on Friday.
Then he walked the length of the train and climbed into the locomotive at the other end, switching controls to make it the lead locomotive.
Seven houses immediately next to the tracks were destroyed, as were the lead locomotives and all of the freight cars on the train.
Conflicting evidence was given as to the adequacy of the brakes on the lead locomotive of the Bendigo train.
The driver of the lead locomotive on the Bendigo train had been working for 12 hours and 25 minutes at the time of the accident.
Cromwell, who was on the lead locomotive with Gates, suffered a broken leg in the collision.