Derby FAQ

1. When was the mainline between Kingsbury and Burton upgraded to 125mph (HST) running? Had a HST arr BUT 6E, having passed Kingsbury R/T in pre-2000 era.

2. Is the Outside Sdg an Entry/Exit point?

3. Previous version had 2 TD berths for sig D4. Was this in error?

TIA

Soton_Speed in post 151674 said:

2. Is the Outside Sdg an Entry/Exit point?

It's an exit point only, any trains reentering come in via Chaddesden Sidings. The track layout behind the two signals has changed a lot over the years so it's just been left simplified for sim purposes.

Point 1: To be confirmed by dev team.
Point 2: 441 - 388: Mantis 38638
Point 3: St Marys Nth Jn: Will need to be taken up by the TT developer.

1. Outside Sidings and Chaddesden are interchangeable for exiting

Hap in post 151776 said:

1. Outside Sidings and Chaddesden are interchangeable for exiting

While the sim may permit it, strictly speaking not so. While it was possible to enter Chad Sidings loco first and access the neck at the far end from any of those sidings to release a loco, the Outside Road was a stop block road (dead end), so a train stabling in the Outside Road had to set back in (normally off the Up Goods) to be able to release the loco, so was only really of any use for a train coming from the north to stable.

It's an exit point only, any trains reentering come in via Chaddesden Sidings. The track layout behind the two signals has changed a lot over the years so it's just been left simplified for sim purposes.

Phil-jmw in post 151782 said:

Hap in post 151776 said:

1. Outside Sidings and Chaddesden are interchangeable for exiting

While the sim may permit it, strictly speaking not so. While it was possible to enter Chad Sidings loco first and access the neck at the far end from any of those sidings to release a loco, the Outside Road was a stop block road (dead end), so a train stabling in the Outside Road had to set back in (normally off the Up Goods) to be able to release the loco, so was only really of any use for a train coming from the north to stable.

What you are saying is only correct for a certain time period, hence I said :-

headshot119 in post 151675 said:

It's an exit point only, any trains reentering come in via Chaddesden Sidings. The track layout behind the two signals has changed a lot over the years so it's just been left simplified for sim purposes.

The control table I was able to source for the 970 release doesn't indicate any locking between the individual frames, just that all three release levers need to be normal to take it back, so the simulation has been setup to reflect that.

Whether that changed over the years I don't know, it's definitely not the original control table as it's revision 3.

To the best of my knowledge, to which I'll happily stand corrected, the Outside Road remained a stop block road until the 2018 resignalling (I had long since moved on by then) when the sigings were also remodelled and signalling provided from each road, which didn't exist in PSB days, so as we're referring in this thread to Derby PSB and not EMCC (Oct 2018 onwards), my comment is relevant to any era within the sim (certainly in the context of the recent re-release with a 1987 TT). The Outside Road should be an exit and entry point (as various dead end sidings are in other sims), because whatever went onto in there came back out the same way, not via the main Chad Sidings. The shunter would tell the signalman which returning train he wanted stabling on the Outside Road.

That seems odd, as I do recall that if a guard when putting one GF back normal couldn't get the release lever on another frame (+ there would be no reason normally to release more than one frame at a time as the guard couldn't be in two places at once, and there would be the risk of 'interference' by persons unknown if a frame was left unattended (and Sinfin isn't the best of areas), or the signalman couldn't get 970 release back after a guard had normalised a frame , it required a visit from the S&T to sort things out, often delaying a train waiting to come off the Sinfin branch until they got there, which quite neatly leads me to another issue. I was able to clear DY374 Sig off the branch with Sinfin No.1 GF still released (9T09 stood at 374 but with rear still on points after exiting the loop). I don't know what the control tables state, but before I tried to set a route from 374 my gut feeling was "I shouldn't be able to clear 374", but it did indeed clear.

There was a different layout again when the PSB first opened, though I don't have a definite date on when it lasted until, with Chaddesden shunt frame still being present.

headshot119 in post 151791 said:

There was a different layout again when the PSB first opened, though I don't have a definite date on when it lasted until, with Chaddesden shunt frame still being present.

Yes, when the PSB first opened in 1969 much of Chad Sdgs was still in use, with sidings still existing right past the wagon shops (the last of which was only recently demolished after seeing many years use as a fireplace shop) all the way up to the former Spondon Junction. http://www.derby-signalling.org.uk/ has Chaddesden South Junction and Derby South Junction SB's being retained as shunt frames to work Chad Sdgs for some time after the PSB opened, but succombed as traffic there dwindled, but with no closure dates given.

Odd one...

Train coming out from Accordis, I pulled off route 408 to behind 401 and started to lower Spondon barriers. Informed the crossing was blocked by a road vehicle but can't raise the barrier as an off sim single was working behind the scenes (I'm guessing). Talked 6T23 over the crossing hoping this would then allow me to raise the barriers but still no good.

Is there a solution to this I'm missing? Save attached after talking 6T23 through.

Wrong route call - Drakelow East Curve Jn.
Train at sig 126 booked Drakelow PS fails to call wrong route towards Drakelow W Jn / Birmingham curve Jn

Passing Wichnor Jn (towards Lichfield)

Trains passing Wichnor Jn don't register passing the location till well past the junction.

Wrong route - Spondon

Train at sig DY404 booked Spondon Courtaulds+Accordis fails to call wrong route towards Derby (sig 406)

Wrong route call - Stenson Jn

Train at DY308 booked to Willington PS fails to call wrong route towards N Staffs Jn (sig 304).