The Signalling Record Society
ELR to RailRef Correlation - ELR Codes X
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Signal Fact 33
Somersault sempahore signals, centre balanced, were developed as a response to the Abbots Ripton collision of 1876 when snow had interfered with the correct operation of slotted post signals.
They were adopted by the Great Northern Railway, Belfast & Northern Counties Railway and Midland & Great Northern Joint Railway among a few others, including Australia.
Explanation of column content is here.
| ELR | BR-NR | Line Description | RailRef |
|---|---|---|---|
| XRC | Crossrail Central Section | ||
| XRS | Crossrail South Section | ||
| XTD | yes | Charing Cross - Dover Western Docks | SE001 SE040 |
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