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Etymology of railway terminology

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Etymology of railway terminology Today at 09:57 #159415
Anothersignalman
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Flabberdacks suggested branching from my other thread to discuss the comparative etymology of various railway terms worldwide, e.g. the use of the term 'dock', and from my perspective, whether the Victorian Railways were the only place to use "double compound" in lieu of "double slip" (same for singles), and "delta" in lieu of "scissors" crossovers?
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Etymology of railway terminology Today at 12:44 #159417
kbarber
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I have an idea the GWR used 'compound' for slip points. But then the GW was always a law unto themselves. Never come across 'delta'.

South of the Border, dock was - as others have said - usually a siding (most often a short one) where loading/unloading would take place.

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Etymology of railway terminology Today at 13:14 #159419
TUT
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kbarber in post 159417 said:
I have an idea the GWR used 'compound' for slip points. But then the GW was always a law unto themselves. Never come across 'delta'.
I think so as well. Remember, there are two ways of doing things. There's the Great Western way and the wrong way.

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Etymology of railway terminology Today at 15:43 #159421
clive
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Anothersignalman in post 159415 said:
whether the Victorian Railways were the only place to use "double compound" in lieu of "double slip" (same for singles), and "delta" in lieu of "scissors" crossovers?
I've come across "compound points" meaning points interlaced with a diamond crossing; in other words, what's more normally known as "slips". With, of course, "single compound" and "double compound". From the context, I've got the impression that these were the formal names for the constructs, with "slip" being a colloquialism used by those down on the tracks.

To me, "delta" indicates three lines meeting with three or six points so that trains from any direction can head out in either of the other two directions.

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