AlastairFraser
Established Member
- Joined
- 12 Aug 2018
- Messages
- 3,289
Thanks for the insight into what could be done, this is perhaps useful for a second stage of any Go-Op plans.The line was originally double track (broad gauge), and had triangular junctions both ends (although those at Thingley Junction were a world war 2 addition (there were vast navy gun shells, and D Day invasion ammunition stockpiled in the former underground quarries near Corsham).
I believe Go-Op wants to use part of the Admiralty sidings at Thingley for a servicing depot (a couple of sidings are still there, although rusty) along with small building that used to have track through it.
As it stands there is nowadays a single lead crossing at both ends, so northbound trains (from Trowbridge) block the line towards Bath if they cannot enter the single line section (and there are generally 3-4 passenger trains per hour + one freight through Trowbridge, each way). The signalling on line through Trowbridge is 2 aspect with distants, and with small halts like Avoncliffe effectively has a maximum of one train about every 8 mins (nearer 10 mins if not higher performance, or same type). With 4-5 trains each way per hour though Trowbridge not that much slack with the rather limited 1984 era signalling
South of Trowbridge it is not uncommon for local trains to be delayed waiting for platform at Westbury (only 3 of the 4 platforms are in use, following rationalisation about 40 years ago). And even though Westbury is now busier, the upcoming 4 week closure from Christmas doesn't restore the 4th platform to ease the waiting for platform.
Ideally need a loop just north of Bradford junctions, or double lead junction restored and short bit of double line, so that trains for Melksham line do not block the line to Bath, and then another loop near Melksham (cheaper if near, but not at station as platform was demolished).
Might be appropriate to link photos of Melksham station
And a link to photos of the sidings at Thingley Junction where the proposed depot will be
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Thingley Junction.
In the early 1980s,the overnight Glasgow to Bristol sleeper service has been diverted between Gloucester and Bristol.Having travelled via Swindon,the train is seen here passing Thingley Junction,near Chippenham,as it heads for Bristol behind an unidentified class 45 loco.www.flickr.com
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However, what could be done without any modification of the existing infrastructure (I agree that you'd have to build the maintenance area at the Thingley Jcn sidings, but apart from that?).
Does that mean you could fit 1tph in the hours that the TransWilts service doesn't run, with stops at Melksham?Bradford Jn to Thingley is treated as a single absolute block section in planning terms. If you aren't stopping at Melksham you could probably squeeze 2tph each way but it would be incredibly tight. Hawkeridge to Bradford Jn is a 4 minute headway and 6 minutes on to Bathampton Jn.