The Signalling Record Society

RailRef Line Codes NH

The first semaphore signal for the direct control of trains was erected at New Cross on the London & Croydon Railway in late 1841.

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	ELR
NH001	Brecon - Neath & Brecon Junction GWR datum 33m05c N&B / B&M boundary BM001 32m53c Mount Street Sidings 32m44c Ely Place Depot 30m46c Cradoc 28m26c Aberbran 27m43c Penpont Halt 27m27c Abercamlais Halt 24m42c Devynock & Senny Bridge 20m79c Cray 16m75c Bwlch Sidings 16m71c Bwlch Summit 14m23c Craigynos (Penwyllt) (1) 11m22c Colbren Junction NH002 11m06c Colbren Junction station (2) 10m30c Onllwyn Junction NH003 10m23c Onllwyn 9m29c Pantyffordd 8m53c Seven Sisters 8m10c Ynysdawley 7m43c Dillwyn & Brynteg (3) Nant-y-Cafn Siding 6m50c Crynant New Colliery Halt 5m40c Crynant 4m31c Cefn Coed Colliery Halt 3m76c Blaenant Dylais Merthyr Colliery 2m04c Cilfrew 1m29c Penscynor Halt 0m78c Cadoxton Terrace Halt 0m59c Cadoxton Sidings 0m29c Neath Yard 0m06c Neath Yard Junction NH004 0m00c Neath & Brecon Junction (4) GW610 (1) Penwyllt until 1907 (2) Capel Colbren Junction until 1874 (3) Nantycafyn Colliery Halt until ?? (4) Cadoxton Junction until ??	NAB
NH002	Colbren Junction - Ynysygeinon Junction MR datum 0m00c Colbren Junction NH001 0m11c Colbren Junction station 2m06c Abercrave 4m63c Ystradgynlais 7m21c Ynysygeinon Junction (1) MR400 (1) aka Ynisygeinon Junction	YSG
NH003	Onllwyn - Maes-y-Marchog Colliery datum 0m00c Onllwyn Junction NH001 1m59c Maes-y-Marchog Colliery boundary	MMZ
NH004	Neath Yard Line (Old Station) datum 0m29c Neath Station 0m26c Neath Yard Junction NH001	NYZ