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These animations are rather fascinating and their patterns will probably be of interest to the regulars here. Map of urban growth / footprint of several large cities. The site plans to release animations for 30 cities by the end of the week. Unfortunately, there's no way to gauge if the high land use growth is more from an increase in urban population or lower density development
One thing I notice is it displays as if there are no towns surrounding big cities until they become part of the metro. The patchwork quilt of towns shown at the end of the animation may have existed a bit before with only a bit less population but out of the commute zone. Obviously many of the outer London ones didn't suddenly spring up in the last decade or two.
I would like to see them make one for the Dallas/Fort Worth metroplex. D/FW has two separate anchor cities that are now connected by suburbs, so that would make for a unique animation.
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