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@Useddenim: I got that Metrorail was in red to differentiate it from Metromover, however, afaik red is only used for non-rapid transit heavy rail, thus I believe its use for Metrorail confuses readers more than it helps them differentiate between the two systems, especially given that Metrorail is of course coloured blue in its own rtd. FDMS 4 04:32, 2 January 2018 (UTC)[reply]
It's much clearer in two colours. (Which is why narrow gauge lines are sometimes blue on RDTs, even thought hey shouldn't be.) Useddenim (talk) 04:38, 2 January 2018 (UTC)[reply]