The Signalling Record Society

RailRef Line Codes GT

Upper quadrant semaphore signals first appeared in 1911 on the Metropolitan Railway.

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
GT001	Glynceiriog - Chirk Wharf datum Bradshaw (1922) shows down from Glynceiriog to Chirk
GT002	Hendre Branch datum
GT003	Cambrian Quarry Branch datum
GT004	Pre 1888 route at Dolywern datum
GT005	Gledrid Wharf Branch datum