The Signalling Record Society
ELR to RailRef Correlation - ELR Codes P
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Signal Fact 30
The Norwich & Yarmouth Railway introduced block telegraph working in 1848 using Cooke & Wheatstone 1830s style instruments.
The instruments were used for general messages as well as authorising train movements.
Explanation of column content is here.
| ELR | BR-NR | Line Description | RailRef |
|---|---|---|---|
| PAA | yes | Pirbright Junction - Alton | SW062 SW062a SW062d |
| PAB | Monkton & Annbank Branch | GS064 | |
| PAC | yes | Patchway Curve | GW126 |
| PAD | Parkhead Branch | NB187 | |
| PAG | Panteg Goods Lines. Now PGL. | ||
| PAG | Park Gate Branch | GC312 | |
| PAH | Par Harbour Branch | GW312 | |
| PAL | yes | Palacecraig Branch | NB327 |
| PAM | Palmerston Branch | ||
| PAN | yes | Pallion Branch | |
| PAP | Partick Loop | CA482 | |
| PAR | yes | Par Loop | GW312 |
| PAS | yes | Portsmouth and Southsea Branch | |
| PAT | yes | Caterham Branch | SE071 |
| PAY | Parkgate Colliery Branch | MR840f | |
| PBA | yes | Peebles Branch | NB065 |
| PBB | yes | Biggar & Peebles Branch | CA036 NB067 |
| PBC | yes | Bentinck Colliery Branch | MR735 MR736 |
| PBE | yes | Putney Bridge - East Putney Junction | SW031 |
| PBH | yes | Paisley East Branch | CA323 |
| PBJ | yes | Proof House Junction - Bushbury Junction | NW340 NW341 |
| PBL | yes | Perry Barr Loop | NW364 |
| PBN | yes | Preston - Blackpool North | PY001 |
| PBO | Portobello Junction (for Leith South) to Portobello Coal Depot | ||
| PBS | yes | MR733 MR640 |
|
| PBW | Portobello Bottle Works Siding | ||
| PBY | Portbury Dock Branch | GW157 | |
| PBZ | Pyle Branch. Now PIZ. | ||
| PBZ | Pencoed Branch | GW556 | |
| PCB | yes | Port Carlisle Branches | NB036 CA007 |
| PCG | yes | Preston Connecting Line | LY210 |
| PCH | Pettycur Branch | NB494 | |
| PCL | Parkhouse to Castlehill Line | GS144 | |
| PCM | yes | Prestatyn - Cwm | NW462 |
| PCN | Perceton Branch | GS091 | |
| PCY | Pinxton Colliery Branch | GN207 | |
| PDA | yes | Pool Dam Branch | NS062 |
| PDB | Penarth Dock Branch. Now PDK. | ||
| PDB | yes | Preston Deepdale Branch | PR001 |
| PDC | yes | Plamadoc Branch | GW848 |
| PDK | Penarth Dock Branch | TV055 TV056 |
|
| PDL | Pelaw Down Link Line | NE625 | |
| PDM | Port Dundas Branch | CA483 | |
| PDN | Port Dundas Branch | NB173 | |
| PDQ | Padstow Quay Branch | SW157c | |
| PDZ | Pontrhydyfen Branch | RS004 | |
| PEB | Port Edgar Branch | NB482 | |
| PED | yes | Penistone and Doncaster Line | GC360 GC268 GC270 |
| PEF | yes | Pontefract - Ferrybridge | SK010 |
| PEH | yes | Penistone - Huddersfield | LY310 |
| PEJ | Pontypool Road East Junction to Coedygric Junction | GW436 | |
| PEL | yes | Penrith Loop (LNER) | NE274 |
| PEM | yes | Pembroke & Tenby Line | GW666 |
| PEN | yes | Penar Branch | GW517 |
| PES | Ponders End Sidings | GE020 | |
| PET | yes | Benhar Branch | CA066 |
| PEW | Penshaw Branch | NE380 | |
| PEZ | Penrhos Loop | BY012 | |
| PFK | Pilton Fork | CA121 | |
| PGB | Partick Goods Branch | CA481 | |
| PGL | Panteg Goods Lines | GW432 | |
| PGN | Partick Goods Branch LNER | ||
| PGQ | Parkeston Goods Junction to Parkeston Quay Line | GE255 | |
| PGS | yes | Palace Gates - Seven Sisters | GE032 |
| PGZ | Paddington Goods Lines | GW006 | |
| PHA | Perth Harbour Branch | CA533 | |
| PHB | Penarth Harbour Branch | TV054 | |
| PHC | yes | Priory Yard - Hull Central Goods | NE052 |
| PHL | Crystal Palace High Level Branch | SE115 | |
| PHR | Portsoy Harbour Branch | GO023 | |
| PHS | yes | Peterborough Sidings | |
| PHY | yes | Parsley Hay - Ashbourne | NW776 |
| PIC | Pickburn Branch | HB015 | |
| PIE | yes | Piel Branch | FN030 |
| PIG | yes | Pinxton Branch | GN200 |
| PIL | Pilsley Branches | MR751 MR752 |
|
| PIS | yes | Pickering - Seamer | NE223 |
| PIZ | Pyle Branch | PT031 | |
| PJE | Plough Junction to East Junction/Port Talbot Junction to Plough Junction | RS007 | |
| PJL | yes | Parkside West Curve | NW552 |
| PJM | yes | Patricroft - Clifton | NW630 |
| PJP | yes | Penwortham Junction - Preston West (West Lancs Line) | LY212 |
| PJW | yes | Portobello Loop | NW349 |
| PJZ | Penywern Junction to Ivor Junction | NW275 | |
| PKB | Poplar Dock "B" | NW042 | |
| PLA | yes | Platt Bridge Line | NW571 |
| PLB | Plank Lane Branch | GC543 | |
| PLC | Paisley Canal Line | GS190 | |
| PLF | Plains Branch | NB249 | |
| PLG | yes | Park Lane Junction - Greensfield Junction | NE644 NE645 |
| PLK | Pickets Lock Sidings | GE026c | |
| PLL | Pemberton Loop | LY149 | |
| PLM | Plymouth Millbay Docks Branch | GW287 | |
| PLN | East Plean Branch | CA514 | |
| PLO | yes | Plymouth Loop No 1 | GW280 |
| PLP | Pontefract Loop | SK009 | |
| PLS | Plymstock Branch. Now part of TUR. | ||
| PLY | Pleasley Colliery Branch | GN197 | |
| PLZ | Plymouth Loop No. 2 | GW281 | |
| PMC | yes | Peat Moss Company's Siding | CM001 |
| PME | Polmaise Branch | CA516 | |
| PMJ | yes | Peterborough - Manton Junction | MR101 |
| PMN | Pontypool Road Middle Junction to North Junction | GW434 | |
| PMT | yes | Polmont - Larbert | NB150 |
| PMY | yes | PMY1 Peterborough - South Lynn PMY2 South Lynn - Yarmouth |
MG001 MG010 |
| PMZ | Pontsmill Branch | GW313 GW314 GW314c |
|
| PNB | Pocket Nook Branch | NW698 | |
| PNC | Penclawdd Branch | NW301 | |
| PNK | Pinkston Branch | NB171 | |
| PNL | Pennington New Line | NW643 NW644 |
|
| PNS | yes | Cowlairs Chord Line | NB181 |
| PNZ | New Passage Pier Line | GW143 | |
| POB | Pontop and South Shields Branch | NE390 NE409 |
|
| POC | yes | Billingham Junction - Port Clarence | NE560 |
| POD | yes | Portishead Branch | GW157 |
| POF | Polkemmet Fork | NB210 | |
| POH | yes | Porthywaen Branch | |
| POL | Pontsticill Loop | BM010 | |
| PON | yes | Pontycysyllte Branch | GW850 |
| POP | Pontypridd Loop | TV027 | |
| POR | yes | Porthcawl Branch | GW561 GW571 |
| POU | yes | Poulton Connecting Line (Poulton Curve) | PY016 |
| POW | Portishead West Loop | GW158 | |
| POY | yes | Ponkey Branch | GW849 |
| POZ | yes | Portreath - Carn Brea | GW352 |
| PPA | yes | Philips Park (Miles Platting) and Ashburys Branch | LY036 MR472 GC370 MR470 |
| PPB | Pearsons Pottery Branch | MR772c | |
| PPE | yes | Port Penrhyn Branch | NW501 |
| PPH | yes | Preston Park Spur | LB072 |
| PPK | Portpatrick Branch | PW001 | |
| PPP | yes | Parks Fork | LY030 LY037 |
| PPR | Park Prewett Railway | ||
| PPW | yes | East Putney Line | |
| PRA | yes | Princes Risborough - Aylesbury South | GW055 |
| PRB | SV013 | ||
| PRC | yes | Princes Risborough - Chinnor | GW054 |
| PRD | yes | Princes Dock, Govan | PD001 |
| PRE | yes | Preteign - Titley | GW831 |
| PRF | Park Royal Freight Depot | GW041f | |
| PRG | Park Royal Goods Branch. Now PRF. | ||
| PRG | yes | Padiham - Rose Grove | LY275 |
| PRI | yes | Priescroft Branch | NE542 |
| PRL | yes | Park Royal Goods Line | GW041 |
| PRN | yes | Princes End Branch | NW371 |
| PRO | yes | Provan Branch | NB185 |
| PRS | yes | Penrhos - Tyn-y-Caeau Junction | BY010 |
| PRT | Thame Branch | GW053 | |
| PRY | Park Royal Yard | GW041c | |
| PRZ | yes | Princetown Railway | GW276 |
| PSB | yes | Park Street Branch | MR071 |
| PSC | Polegate - Stone Cross | LB120 | |
| PSE | yes | Pleasley - Shireoaks East Junction | MR640 MR658 |
| PSF | yes | Perry Street Fork | SE026 |
| PSG | Peasmarsh Juction to Shalford Curve | SE074 | |
| PSJ | Pontypool Road South Junction to Coedygric Junction | GW435 | |
| PSL | Pelham Street Loop | GC185 | |
| PSM | yes | Pulborough - Midhurst | LB083 |
| PSR | yes | Preston Strand Road Branch | NU003 |
| PSS | Penyfford Connecting Line. Now MDH1. | ||
| PST | yes | Edinburgh Princes Street Line | CA090 |
| PSZ | Portskewett Branch | GW471 | |
| PTA | yes | Penalltau Branch | RR016 |
| PTB | Tranent Branch | NB010 | |
| PTD | yes | Port Talbot Docks Branch | PT010 |
| PTH | yes | Penarth Branch | TV057 TV058 |
| PTK | Plotcock Branch | CA246 | |
| PTL | Pistill Branch | GW641c | |
| PTM | yes | Petersfield - Midhurst | |
| PTN | Peterston Branch | BY015 | |
| PTP | yes | Port Talbot - Pontyrhyll | PT001 |
| PTZ | Port Wallaroo Dock Line | GW587 SL005 |
|
| PUL | Pelaw Up Link Line | NE626 | |
| PVS | yes | Nuneaton Flyover See NSA |
MR235c |
| PWB | Paisley West - Barrhead Branch | GS193 | |
| PWE | yes | Pontardawe Branch | GW592 GW593 |
| PWG | Plaistow and West Ham Goods Line | GE170f | |
| PWH | yes | Hawkhurst Branch | SE044 |
| PWJ | Pontypool Road West Junction to South Junction | GW433 | |
| PWN | Penllwyn Branch | NW263 | |
| PWS | yes | Maidstone West Branch | SE043 SE020a |
| PWW | yes | Portobello - Wanton Walls | NB013 |
| PYB | Park Yard and Blast Lane Depot | GC364 | |
| PYD | yes | North Union Joint - Preston Coal Yard | NW852 |
| PYE | yes | Pyewipe Branch, Immingham East Dock - Grimsby Docks | GC137 GC137c |
| PYH | Priory Yard Branch Junction to Hessle Road North Junction | ||
| PYW | Pyle West Loop | GW572 | |
| PYZ | Pwllyrhebog Branch | TV032 |
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