Queries

Bham Intl P1/P2 long/short overlaps - should there be a way to choose between the two? Currently the only way to force a short overlap is to set another route which blocks the long overlap.

Bham NS Via Button C - what routes actually use this? I've not found any to/from P6/7 that accept via buttons at all.

A couple of queries:

Bham Intl 12->25 (Down Stour -> P4) only clears to a shunt aspect, despite an overlap being shown beyond 25 which could only be used by this route. Is the overlap shown incorrectly, or should there be a main route into P4 from the wrong direction? Additionally, TDs do not step on this route.

Bham Intl P1/P2 long/short overlaps - should there be a way to choose between the two? Currently the only way to force a short overlap is to set another route which blocks the long overlap. Also, in the Up direction, is there any difference between the long/short overlaps? Both seem to be approach control from red, but perhaps the timing is less restrictive on one.

Bham NS Via Button C - what routes actually use this? I've not found any to/from P6/7 that accept via buttons at all.

" said:

Bham Intl 12->25 (Down Stour -> P4) only clears to a shunt aspect, despite an overlap being shown beyond 25 which could only be used by this route. Is the overlap shown incorrectly, or should there be a main route into P4 from the wrong direction? Additionally, TDs do not step on this route.

The route-learning diagrams I've seen for International list NS12 - pf4 as a shunt only route, and the signal only has Feathers 1, 2 and 4 which would imply 3 diverging main aspect routes and 1 main route. The panel photos do show a full overlap for NS25, but there aren't any routes that would use it so I'd put this down as a quirk of the design, not a bug.

" said:

" said:

Bham Intl 12->25 (Down Stour -> P4) only clears to a shunt aspect, despite an overlap being shown beyond 25 which could only be used by this route. Is the overlap shown incorrectly, or should there be a main route into P4 from the wrong direction? Additionally, TDs do not step on this route.

The route-learning diagrams I've seen for International list NS12 - pf4 as a shunt only route, and the signal only has Feathers 1, 2 and 4 which would imply 3 diverging main aspect routes and 1 main route. The panel photos do show a full overlap for NS25, but there aren't any routes that would use it so I'd put this down as a quirk of the design, not a bug.

That overlap marker is for NS31, not NS25. The control tables don't require that track clear so the SimSig display was incorrect [fixed]. I've also fixed the corresponding route in 1970s/1980s mode into platform 3 from NS31.

The short overlaps are suto-selected Reduced Overlaps - Warner Routes without the buttons.

" said:

Also, in the Up direction, is there any difference between the long/short overlaps? Both seem to be approach control from red, but perhaps the timing is less restrictive on one.

The routes into platforms 1 and 2 from NS12 do allow flashing aspects, but only if the full overlap is available. Flashing sequence will be inhibted once the train is withing sighting distance of the single yellow.

" said:

Bham NS Via Button C - what routes actually use this? I've not found any to/from P6/7 that accept via buttons at all.

P6/7 to Down Stour.

" said:

" said:

Also, in the Up direction, is there any difference between the long/short overlaps? Both seem to be approach control from red, but perhaps the timing is less restrictive on one.

The routes into platforms 1 and 2 from NS12 do allow flashing aspects, but only if the full overlap is available. Flashing sequence will be inhibted once the train is withing sighting distance of the single yellow.

I had meant the routes from NS31 with regards to the difference - neither long nor short overlap gives a flashing sequence, even with routes set out of P1/P2 towards NS412.

...a bit of playing around with F11...

" said:

" said:

" said:

Bham Intl 12->25 (Down Stour -> P4) only clears to a shunt aspect, despite an overlap being shown beyond 25 which could only be used by this route. Is the overlap shown incorrectly, or should there be a main route into P4 from the wrong direction? Additionally, TDs do not step on this route.

The route-learning diagrams I've seen for International list NS12 - pf4 as a shunt only route, and the signal only has Feathers 1, 2 and 4 which would imply 3 diverging main aspect routes and 1 main route. The panel photos do show a full overlap for NS25, but there aren't any routes that would use it so I'd put this down as a quirk of the design, not a bug.

That overlap marker is for NS31, not NS25. The control tables don't require that track clear so the SimSig display was incorrect [fixed]. I've also fixed the corresponding route in 1970s/1980s mode into platform 3 from NS31.

I meant the overlap marker beyond NS31's. However, I had completely missed the crossover in advance of NS24 on P3, which can cause NS24's overlap to fall onto the Up Stour, so the overlap marker in advance of NS25 is correct.

Quote:

The short overlaps are suto-selected Reduced Overlaps - Warner Routes without the buttons.

I was just wondering if there should be warner buttons, as it seems like a relatively common occurance to want the short overlap before you set a route out. However, if the NS signallers have to do it the hard way, I'm happy to do so!

A bug this time - signalling a shunt route into P10A lights up the Direction Arrows with both standard locking or platform arrows. However, no other shunt route seems to light up the Direction Arrows with either option!