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Isle of Man Railway

Signal Fact 59

The Great Western Railway started developing its automatic train control (ATC) system with a trial in 1906.

The system was installed across the Great Western Railway between 1910 and 1930.

This page should be regarded as “Work in Progress”. The webmaster will welcome additional information for this page.

In the list below the information is set out in tabular form, spread over four columns. The column entries are -

RailRef	The Line Code used in RailRef system.
Line Detail	The principal locations included within the Line Code. They are arranged in 'down' direction order. Locations shown are primarily stations and junctions to allow easy cross check against published atlases. Signal box names appear in italics where these are 'intermediate' to stations or have been shown to facilitate links from other pages on this web site. The inclusion of a station or junction name does not imply that there was always a signal box of that same name!
SBR	The section reference used in the relevant Signal Box Register published by the Society.
ELR	The corresponding Engineer's Line Reference(s). This will be blank for railways that never came within British Railways terms of reference. It will also be blank where British Railways had no surviving responsibility for infrastructure at the time the ELR system came into use.

RailRef	Line Detail	SBR	ELR
IM001	Douglas - Ramsey 0m00c Douglas Douglas Junction IM002 0m60c Pulrose 1m10c Quarter Bridge Halt 1m40c Braddan Bridge 2m40c Union Mills 3m10c Crosby 8m00c Ballacraine 8m40c St John's St John's East Junction IM003 St John's West Junction IM004 11m08c Poortown St Germain's Gob-y-Deigan 13m20c West Berk Crossing 15m20c Kirk Michael 18m10c Ballaugh 20m12c Sulby Glen 21m20c Sulby Bridge 23m08c Lezayre 25m00c Ramsey
IM002	Douglas - Port Erin datum Douglas Douglas Junction IM001 3m10c Port Soderick 4m10c Ballacostain 5m52c Santon 6m24c Ballalonna LC 6m37c Ballastrang LC 7m45c Ballawoods LC 8m11c Ballahick LC 8m30c Ballasalla Ballasalla LC 9m16c Ronaldsway Halt 9m74c Castletown 10m09c Mill Road LC 11m39c Ballabeg 12m57c Colby LC 12m60c Colby 13m22c Kentraugh LC 13m41c Corby Level Halt Corby Level LC 13m41c Ballagawne (1) 13m79c Ballagawne LC 14m32c Four Roads LC 14m57c Port St Mary LC 14m60c Port St Mary 15m21c Port Erin LC 15m33c Port Erin (1) Colby Level from 1928
IM003	Foxdale Branch datum Foxdale Waterfall St John's St John's East Junction Junction IM001
IM004	Peel Branch datum Douglas St John's West Junction Junction IM001 Raggatt Junction IM005 11m40c Peel
IM005	Knockaloe Branch datum Peel 2m06c Knockaloe Camp Raggatt Junction IM004

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Page last modified Thursday, 21st January, 2021, 19:51 hours.
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