The Signalling Record Society
ELR to RailRef Correlation - ELR Codes Q
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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 |
|---|---|---|---|
| QBL | Sheppey Light Railway | SE128 | |
| QDS | yes | Kirkliston Branch | NB133 |
| QLT | yes | Queen's Park LUL | LE001 |
| QUB | Quarry Branch | GW277 | |
| QYB | Quakers Yard Branch | GW454 | |
| QYZ | yes | Quakers Yard & Merthyr Joint Railway | QY001 |
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