British Rail GPS and limit of shunt signals 1988

[bootneckbob]

Apologies for not searching in here but I'm going straight for someone seeing this who was probably working on the railway at the time and give me a straight answer.

I'm modelling Exeter St Davids 1988 and wanting to confirm if the limit of shunt signals were fixed double red in a GPS type enclosure, or red white (fixed again). I thought the GPS would be red white and double white (for proceed) or were they also dual lights by then so double red then double white to proceed? 

 

Any help for the local answers for the time period much appreciated.

[coronach]

I can’t confirm what was provided at Exeter but many locations provided a square illuminated limit of shunt indicator. Double red GPS are a more recent development. I would doubt very much that a red/white GPS would be used. 

[coronach]

http://www.railsigns.uk/sect5page1.html
 

this is a useful website

Edited September 9, 2023 by coronach

[keefer]

Page about L.O.S. signals/indicators says 1985 for double-red GPL.

https://www.railsigns.uk/sect5page1.html

The whole point of a Limit Of Shunt is that it's controlling a movement in the wrong direction and you cannot pass it, so would not use a standard GPL which could clear to double-white.

[bootneckbob]

That's great but the housing for the GPS / limit of shunt has 3 cowls even today although they only can show double red. 

I'm just going to have a read through the links.

[bootneckbob]

Wiki has this down as pre 1996 shunt signal on stop:

 

This ties in with what I was thinking for the layout. GPS will be like this that (above), and limit of shunt like this (below):

 

Thanks for the replies.

 

[Rivercider]

The Signalling Record Society lists the notices for the Exeter MAS, stage 1A and 1B March April May 1985.

I am not a member so do not know if the notices they hold show all the signalling arrangements,

 

cheers

Edited September 10, 2023 by Rivercider
spelling

[Mike_Walker]

The only Limit Of Shunt in the St. Davids area is on the Up Main in the rear of E35 signal and has been a double red GPL since the Panel related resignalling in the early 1980s.  All the GPLs would have been showing red/white when "on" when first installed but, like the rest of the country, were changed to double red in the late 1990s.

[The Stationmaster]

On 10/09/2023 at 12:23, Mike_Walker said:

The only Limit Of Shunt in the St. Davids area is on the Up Main in the rear of E35 signal and has been a double red GPL since the Panel related resignalling in the early 1980s.  All the GPLs would have been showing red/white when "on" when first installed but, like the rest of the country, were changed to double red in the late 1990s.

Is there no longer one on the Up Main at the other end?

[Mike_Walker]

6 minutes ago, The Stationmaster said:

Is there no longer one on the Up Main at the other end?

Nope, apparently not.  There is a GPL (E661) on the DM up at Cowley Bridge but that's for up direction shunt moves to the UM and/or Down North Devon.  I've just checked my pics of the Panel to make sure I haven't missed something - I haven't!  🙂 

 

Err, but why would there be a LOS on the Up Main at the London end?

[The Stationmaster]

23 minutes ago, Mike_Walker said:

Nope, apparently not.  There is a GPL (E661) on the DM up at Cowley Bridge but that's for up direction shunt moves to the UM and/or Down North Devon.  I've just checked my pics of the Panel to make sure I haven't missed something - I haven't!  🙂 

 

Err, but why would there be a LOS on the Up Main at the London end?

Ah, me getting confused over my Ups & Downs and signal numbers - probably an age thing!.  661 is the one is effectively the one I meant although I thought there was something closer in (and there isn't!).  Time to go back to sleep.. 

[Mike_Walker]

Easy done at EXD with that "foreign" railway confusing things!