Earlier quoted context omitted.
It is also the entire cause of the "gentrification" problem many are so pissed off about. Nobody wants to move into a poor area, they are forced into it because you can't build skyscraper high rises in the good areas.
No, they are forced to move to these areas because they want to have a bearable commute. Your solution is to jam everyone into a more confined area. Another solution is to make commuting from a "long distance" (e.g. 60-120 miles) more bearable. In NYC, for instance, subways could be built to NJ. Faster trains (low-speed maglevs) could be built like what's being done in China ( http://en.wikipedia.org/wiki/Line_S1,_BC…
That would only be your full commute, though, if you were doing deep SoMa to downtown Mountain View.