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Cathcart Released

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Cathcart Released 10/09/2018 at 21:21 #112050
headshot119
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Cathcart, a simulation of part of the Glasgow Suburban network (Please note this is not a simulation of Glasgow Central), simulating the Cathcart Circle, and Neilston branch. The simulation reflects the OCS nature of the panel, but this option can be turned off and the simulation used in the traditional SimSig sense.

Product page here

Download via "Check for Updates"

"Platform 1 your Maesteg service. Platform 1A your Aberdare. Platform 2 your London!"
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Cathcart Released 10/09/2018 at 22:51 #112061
Ron_J
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Any chance of a screenshot?
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Cathcart Released 11/09/2018 at 00:06 #112066
Muzer
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Looks like an interesting sim; I've always wondered how an OCS sim would play! Don't have time to try it out tonight, but many thanks as ever! I guess, subject to timetable, it would also chain with Motherwell, thus providing a useful one-player add-on to that sim for some circumstances!
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Cathcart Released 11/09/2018 at 01:26 #112069
whatlep
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Oh, now there's a "blast from the past". Not only a panel I worked as part of TCB training, but part of my commute from Patterton in 1981/82. Nice one, chaps!

Regarding the interface with Motherwell, my 1983 Sectional Appendix states "all lines between Newton West Jn (exclusive) and Cathcart West Jn are controlled from Cathcart". That included the reversing crossover at Kirkhill. Cathcart still had control of Kirkhill around 1987, though I think the reversing crossover had gone by then.

A version of the simulation which included Kirkhill crossover would enhance the simulation nicely for 1970s BR days since half the trains on the Kirkhill route terminated there, with the other half continuing on to Newton.

Last edited: 11/09/2018 at 14:12 by whatlep
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Cathcart Released 11/09/2018 at 07:33 #112072
jc92
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Ron_J in post 112061 said:
Any chance of a screenshot?
Theres one on the simsig Facebook group currently but it does have the simsig logo marked over it.

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Cathcart Released 11/09/2018 at 07:52 #112073
vloris
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Sounds like a nice sim!

Forgive me for asking, but what is 'OCS'?
I can only think of "On Course Side", but that's more a sailing-term, probably something totally different here.

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Cathcart Released 11/09/2018 at 08:58 #112075
DriverCurran
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Vloris

OCS is shorthand for One Control Switch. Think the panel equivalent of levers. In a lot of cases, certainly where I am, if there were two or more routes from a traditional semaphore signal you might get one arm with a route indicator underneath. In order to get the signal to clear you would have to set all the points for the route and then the penultimate lever you pulled would be the route lever (So called because it operated the route indicator) and then finally the actual lever to move the arm. With an OCS panel each route from a signal has its own switch rather than a button at the entrance and then a button at the exit of the route.

Paul

You have to get a red before you can get any other colour
Last edited: 11/09/2018 at 09:03 by DriverCurran
Reason: Explanation entered

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Cathcart Released 11/09/2018 at 09:50 #112076
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A picture of the 1951 example at York here https://www.flickr.com/photos/davidh73/24171571365 and you can see it working from 0:21 here https://www.youtube.com/watch?v=tN_lTuJsIaY

Basically, turning one of the switches called all the points in the route (provided the requisite track circuits were clear and no conflicting route set) and cleared a signal to the appropriate indication. As you can see there were a lot of switches and, except on the smallest panels, they had to be located on a separate console, which meant the same kind of learning task as for a lever frame. (St Pancras was even worse, with a couple of signals that had something like 16 routes - shunt and main routes had separate switches even when they went to the same destination. Among the 16 were a couple of alternative routes to the same destination, so 2 main & 2 shunt switches, and if you cleared the wrong route for an incoming train you could pretty much box yourself up for the whole of the peak!) NX is so much easier to learn, and also capable of being contained in a much smaller space; no wonder it swept all before it.

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Cathcart Released 11/09/2018 at 11:14 #112077
Jan
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There's also a nice explanatory document in the British Power Signalling Register archive download that amongst other things also includes an explanation of the various route setting methodologies employed at one time or other in UK signalling.
Two million people attempt to use Birmingham's magnificent rail network every year, with just over a million of them managing to get further than Smethwick.
Last edited: 11/09/2018 at 11:14 by Jan
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Cathcart Released 12/09/2018 at 16:54 #112114
whatlep
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What's the reason that signal 56 never clears to a less restrictive aspect than single yellow?
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Cathcart Released 12/09/2018 at 17:20 #112116
Peter Bennet
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It's an error in the display, but not the function.
I'll do an update over the weekend, just to see if anything else comes up.

Peter

Stereotypes only have themselves to blame
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Cathcart Released 12/09/2018 at 21:22 #112127
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Just for interest/ fun, attached is a copy of the original (1961) signalling plan at the Kirkhill end of Cathcart panel. I'll confess that the existence of Kirkhill Jn, the signalbox Cathcart took over, and the goods-only line thence to Carmyle was unknown to me, though I remember the crossover at Kirkhill and the interface with Newton. I don't recall ever seeing the two sets of sidings, but someone will know better than I when they closed.

The junction signalling shown here only lasted to 1966 when the line to Carmyle closed, but if memory isn't playing tricks, the remaining Newton line signals were retained as shown/ numbered until Newton box closed in 1991 and the new interface between Motherwell PSB and Cathcart as shown in the Simsig simulation came into being.

It would be very cool if a pre-1991 version complete with Kirkhill crossover could be created....

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Cathcart Released 13/09/2018 at 09:13 #112133
jc92
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Question for anyone in the know. Why was the Neilston line truncated?

It seems strange to cut it off from the G&SW so close to the junction at Barrhead rather than retain it as a through route if needed

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Cathcart Released 13/09/2018 at 12:47 #112137
whatlep
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jc92 in post 112133 said:
Question for anyone in the know. Why was the Neilston line truncated?

It seems strange to cut it off from the G&SW so close to the junction at Barrhead rather than retain it as a through route if needed
Your geography is a bit off, I'm afraid. There wasn't a junction at Barrhead, though there were multiple junctions further south around Lugton. Remember that the current Barrhead line was built by one company (eventually the Glasgow & South Western) and the Neilston line was built by a different one (Caledonian Railway). The two companies were in deep competition for the Clyde Coast traffic, with the Caledonian very much the second best option.

The Neilston line wasn't even conceived as a passenger route originally. It was intended as a freight route from the Clyde to the Motherwell area. As first built, at Cathcart there was no connection from the Neilston route to Cathcart station and Glasgow. Instead, the Neilston line joined the Kirkhill route to the east of the junction right at the southwest end of Cathcart station. The current junction arrangements were installed later. See: http://www.scotcities.com/cathcart/intro.htm for maps and a nice view of the former goods yard adjacent to Cathcart station.

The line closed beyond Neilston simply because there was not much reason to keep it. Passenger traffic to the Clyde coast was concentrated on the faster, more direct GSW route after nationalisation while freight traffic declined steeply here, as elsewhere, after the lorry market was deregulated in the mid-1950s. So the line reverted to a purely suburban role, with a long, rather rural tail from Whitecraigs to Neilston. Subsequent building around Patterton (Newton Mearns) has changed the line's passenger potential there out of all recognition, but the Neilston section remains delightfully rural.

Last edited: 13/09/2018 at 12:48 by whatlep
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Cathcart Released 16/09/2018 at 21:37 #112189
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A 1982-83 timetable is now available for the Cathcart simulation. Ten trains per hour during the day rather than 6 and a bonus extra train during the rush hours! A short version focussing on the evening rush hour is also available.

Donwloadable from the timetable section's root folder, pending a dedicated Cathcart sub-folder.

Last edited: 16/09/2018 at 21:37 by whatlep
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Cathcart Released 16/09/2018 at 21:38 #112190
jc92
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Panel signals seems to have no effect on this sim? I still see full aspects for all signals
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Cathcart Released 18/09/2018 at 20:41 #112219
WesternChampion
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Is there a reason why Signal 56 at Pollokshields West does not clear to green?

Chris

Sorry - just read the post above. Please ignore. C

Last edited: 18/09/2018 at 21:13 by WesternChampion
Reason: Point already raised

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Cathcart Released 18/09/2018 at 21:37 #112221
postal
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Further to the Neilston/Barrhead conversation, if anyone is track-bashing it is a 15-minute bus-ride between Neilston and Barrhead to save a long trek back to Glasgow and out again.
"If you aren't fired with enthusiasm, you will be fired with enthusiasm" - Vince Lombardi, 11/06/1913 – 03/09/1970, American Football Player and Coach.
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Cathcart Released Today at 06:59 #112237
Peter Bennet
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jc92 in post 112190 said:
Panel signals seems to have no effect on this sim? I still see full aspects for all signals
It's a side effect of the one button modelling.
Peter

Stereotypes only have themselves to blame
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