Transfer of trains from Yoker IECC -- Banavie SC

Offered and accepted by bell, using the slot you note.

There is also mention of setting the acceptance to Normal (NOR) but I don't understand when, under normal circumstances.

4.1 Stopping trains because of an emergency

4.1.2 Placing a release to normal

You must also place or keep any release, slot or acceptance switch in the normal position.

Related to this, "Leeds" signalling area (actually York IECC) controls as far as Gargrave, after which the Sectional says it's AB to Hellifield. Does that IECC use bell codes as well or is there some kind of special working?

.... it suggests that a train can be shunting on the single line between Craigendoran and Helensburgh (exc) while still allowing the token - though signaller beware!

There is a down signal well before Helensburgh Upper, so providing safe separation / shunt limit.
The screenshot does not show shunt exit arrows, or is that the brand of system ?

Related to this, "Leeds" signalling area (actually York IECC) controls as far as Gargrave, after which the Sectional says it's AB to Hellifield. Does that IECC use bell codes as well or is there some kind of special working?

bill_gensheet in post 129648 said:

There is a down signal well before Helensburgh Upper, so providing safe separation / shunt limit.
The screenshot does not show shunt exit arrows, or is that the brand of system ?

I believe the shunt exit might be from the single line into those sidings just above. And as this is an IECC shunt related exit controls might only be shown on the detail view, and I imagine this linked picture is of the overview screen instead.

I think Bill was referring to a shunt exit arrow for the route onto the Highland (for setting a route like this). It looks like that facility isn't provided here; nor is there necessarily a need to provide it.

GeoffM in post 129642 said:

.... it suggests that a train can be shunting on the single line between Craigendoran and Helensburgh (exc) while still allowing the token - though signaller beware!

There is a down signal well before Helensburgh Upper, so providing safe separation / shunt limit.
The screenshot does not show shunt exit arrows, or is that the brand of system ?

clive in post 129646 said:

Related to this, "Leeds" signalling area (actually York IECC) controls as far as Gargrave, after which the Sectional says it's AB to Hellifield. Does that IECC use bell codes as well or is there some kind of special working?

Whilst Karl's post shows your example location is not one where it applies; I will say that AB working from computer based control systems is not that uncommon. At the least I know for certain that manchester east westcad works full AB (with bells outside the control system, but block controls provided within it) to Dinting (and did to Ashton Moss when that box still existed) (see hereand here )and I imagine other examples exist too.

The Hellifield to Skipton section used to be classed as AB with automatic signalling with its own seperate regulations, simulator to the Steeton to Keighley section, however this was removed once power signalling was installed around 93/94.

jc92 in post 129658 said:

The Hellifield to Skipton section used to be classed as AB with automatic signalling with its own seperate regulations, simulator to the Steeton to Keighley section, however this was removed once power signalling was installed around 93/94.

If I remember rightly, there was a weird set-up where Hellifield controlled an IB signal (think it was at Bell Busk) for the section in rear on the Down. It was a factor in an accident where an express rear-ended a train stopped in the station.

Not quite as scary as one I have recently read about, that trains could shunt onto a single line without the token as long as following a train departure. I assume some local understanding of the shunt limits as there were no advanced signals / remote section signal either.
Obviously not allowed if a train was approaching, but no mention of interlocking against that.

Bill