CROR Rule 409 is Advanced Clear to Stop, and states according to Transport Canada: Proceed, next signal is displaying Clear to Stop, be prepared to stop at second signal.
I was wondering, (on Canadian track of course):
- how frequently is this aspect used?
- what is the typical speed associated with this rule?
- Is it used exclusivly only to indicate a train up ahead? If there are other reasons to use it what are they?
Thanks in advance!! [:)]