Everything about Engineer's Line Reference
Alpha-numeric code used to uniquely identify UK railway lines
An Engineer's Line Reference (ELR) is a three alpha, or four alpha-numeric, code used to uniquely identify a railway line on the main-line railway of Britain owned, or maintained, by Network Rail but official railway records retain the ELR codes for lifted branch lines and any structures such as bridge abutments, tunnels, viaducts, retaining walls etc., still maintained by the former British Railways Properties Board. Highways England's Historical Railways Estate group succeeded that organisation and further changes recently came about with the National Highways Organisation. Such structures are identified on records by the locational branch mileage and chainage and is repeated on the actual structure and therefore essential for reporting to site for works projects and maintenance, and most important, for any mishaps. In particular, bridge strikes are still prevalent by high-sided vehicles and Network Rail fix a metal plate to bridge abutments giving the bridge name, mileage and chainage, for emergency 'phone contact to Network Rail whether or not the bridge carries track. Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: Engineer's Line ReferenceA 5-minute orientation
- Pick up a classic book: Applied software product line engineeringThe most-reprinted book on the subject
- Read the landmark paper: Dynamic Software Product Line Engineering: A Reference FrameworkCited 28 times
- Go sideways: Portsmouth lineA closely related topic
- Go sideways: Leatherhead railway stationA closely related topic
📖 Definitions
No dictionary entry for this exact phrase.
🗂️ The subject at a glance
No outline available.
🏆 Landmark papers (most cited)
📚 Books worth reading
Applied software product line engineeringKyo C. Kang, Vijayan Sugumaran · 2009
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
🔗 Related topics
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