Half as many people will not support half as many enterprises In a given geographical territory, half as many people will not support half as many such enterprises spaced at twice the distance. When distance inconvenience sets in, the small, the various and the personal wither away. Jane Jacobs, The Death and Life of Great American Cities densitydistancegeographybusinesseconomics
highdensityandovercrowding They hated both equally, in any case, and coupled them like ham and eggs, so that to this day housers and planners pop out the phrase as if it were one word, “highdensityandovercrowding.” Jane Jacobs, The Death and Life of Great American Cities densityurbanism
Putting the streets to use Tad Friend writes, if you build “nine hundred miles of sinuous highway and twenty-one thousand miles of tangled surface streets” in one city alone, then you’re going to find at least a few people who want to put those streets to use. This suggests that every city blooms with the kinds of crime most appropriate to its form. Geoff Manaugh, A Burglar's Guide to the City Burglary's White Whale transportationurbanismcrime