Re:Four Million Commutes Reveal New U.S. 'Megaregions'
by amk_ on Sunday December 04, 2016 @12:49PM
(#13100849)
It's designed to identify economic regions. The way they do that is to graph all the connections between cities and cut the least-connected ones until 50 clusters emerge.
It doesn't, as you say, mean that someone on the edge of a graph commutes all the way to center---after all the drive time for some of these routes is more than 8 hours.
You could argue that choosing 50 clusters is arbitrary and it would make more sense to severe connections below some threshold "quality" and see how many clusters meet that criteria.
It doesn't, as you say, mean that someone on the edge of a graph commutes all the way to center---after all the drive time for some of these routes is more than 8 hours.
You could argue that choosing 50 clusters is arbitrary and it would make more sense to severe connections below some threshold "quality" and see how many clusters meet that criteria.