Wilkinstown wrote:There is also one train working between Waterford West and platform 5 in Waterford, controlled, I believe by axle counters at the entrance.
hussra wrote:Thanks - had missed that one. Though if there's an axle counter at the entrance perhaps that makes it effectively TCB rather than OTW? (The difference being that in OTW the system knows from the sequence of track circuit occupancy that something went into the section, and something came out again, and so we infer that the section is now clear; whereas with the axle counters we count 'em all in and count 'em all out again, with apologies to the late Brian Hanrahan.)
baconandeggs wrote:For a few years I worked at Petone, a box in Wellington New Zealand. The box controlled trains on and off the 3km Melling Branch. The trains operated under OTW although it was not described as such.
Mike Hodgson wrote:I'm a little confused here.
Are we talking about a single axle counter counting a train into a section and also acting as the exit counter counting the same train back out again?
This logic is OK as long as we are talking about fixed formation trains, but clearly causes a problem if we detach vehicles somewhere on the single track branch
Or do we mean axle counters at both ends of the section?
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