Dwelling on NYC commuter rail esp Metro North...I wanna endorse subway interoperations but seems very impractical here...
#TrainTwitterpic.twitter.com/aCfVkJA2Nt
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London also has this pattern--and I think it's pretty typical in Germany and some other European countries
Which pattern? New York's? Or Boston's?
Boston's pattern; using former or current mainline alignments for subway service
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