"Staff at Metro's train control centre could not contact the driver
to tell him he had passed a stop signal because Metro and V/Line
do not share a radio channel."
"It was the second safety breach in less than a month in which a V/Line train
passed through a stop signal and travelled along the wrong track
but could not be readily contacted on radio."
V/Line train went down wrong track
Train Radio Upgrade hits Sidetrack
by Adam Carey
May 9th 2013