The Signalling Record Society

RailRef Line Codes NG

In 1858 the London & North Western Railway introduced a system of working single lines in which coloured flags were used as the train staff.

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.

The revived Welsh Highland Railway uses the Caernarvonshire Railway (LNWR) trackbed north of Dinas.

RailRef	Line Detail	SBR	ELR
NG001	Main Line datum Dinas NW Dinas Junction Tryfan Junction station Tryfan Junction NG002 Waenfawr Bettws Garmon Salem Plas-y-Nant Quellyn Quellyn Lake (1) Snowdon (2) Pitt's Head Hafod Ruffydd Beddgelert Nantmor (3) Hafod-y-Llyn Hafod Garregog Croesor Junction PC001 Ynysfor Pont Croesor Porthmadog WHR (2nd) Croesor Crossing Porthmadog WHR (1st) FF007 (1) Snowdon until 1881, then Snowdon Ranger until 1893 (2) Rhyd-ddu until 1893; South Snowdon from 1922 (3) Aberglaslyn from 1934
NG002	Bryngwyn Branch datum Tryfan Junction NG001 Rhostryfan Bryngwyn