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1996 Q4 WHOLE LIFE CYCLE COST RAIL v ROAD


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1996 Q4 WHOLE LIFE CYCLE COST RAIL v ROAD
coomerst Offline
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#3
29-09-2009, 03:58 PM
I get the impression that the term '4 aspect' has led to confusion here...
This question has nothing to do with 4-aspect signalling as opposed to 2- or 3-aspect signalling!
-- Perhaps reading the question as "what four characteristics..." would help clarify.
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RE: Do you know what four aspects for the railway's design and operation?? - by coomerst - 29-09-2009, 03:58 PM

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