Posted Jul 3, 2012, 12:08 AM
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TL;DR
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Join Date: Jun 2006
Location: the city o'wind
Posts: 17,005
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It's interesting to look at Miami, where underground construction wasn't feasible. Harry Weese insisted that the tracks be built on separate, unlinked viaducts so each would be as slender as possible and allow light to the ground. He also insisted on standardizing column spacing to get the greatest savings from prefabrication. A similar approach might have really benefitted in Tysons.
I do not like how the power supply is strapped to the outside of the columns - it looks really vulnerable to sabotage or vandalism, so WMATA will probably insist that the land beneath the tracks be fenced off instead of landscaped and opened for public use like a great city should do.
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