The Signalling Record Society
ELR to RailRef Correlation - ELR Codes U
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Signal Fact 50
The first illuminated signal box diagram was provided at Mill Hill Park on London's underground.
This showed the position of the trains on the diagram instead of using separate track circuit occupied repeaters.
Explanation of column content is here.
| ELR | BR-NR | Line Description | RailRef |
|---|---|---|---|
| UCJ | yes | Carlisle, Upperby Junction - Caldew Junction | NW962 CG001 CG002 |
| UCX | Caldercruix Upper Branch | NB247 | |
| UDS | yes | Doncaster, Up Decoy Sidings + Low Ellers Curve | SY011 |
| UHL | yes | Wembley Central - Willesden High Level | NW014 |
| ULC | yes | Ullcoates Branch | FN073 |
| ULR | yes | Carlisle Upperby Junction - London Road Junction (Through Siding) | NW963 |
| UPG | yes | Upminster - Grays | MR042 |
| UPL | Uphall Branch | ||
| USS | yes | Upside Sidings, Euston | NW002 |
| USY | yes | Westbury Up Sidings | |
| UXB | Uxbridge Branch | GW067 | |
| UXC | yes | Uttoxeter Curve | NS021 |
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