For background, I read his article [1] on why density, so he argues, doesn't matter. Instead, he proposes a different metric - the ratio of private (i.e. produc

For background, I read his article [1] on why density, so he argues, doesn't matter. Instead, he proposes a different metric - the ratio of private (i.e. productive, main property) investment to public (infrastructure/supporting) investment, which should be high; 20:1 or ideally much higher. However, most arguments for dense development are EXTREMELY relevant to this ratio - the idea being that dense development is cheaper, per unit population/economic activity, to build infrastructure for. Maybe it shouldn't be viewed as an end in itself, but it is a good heuristic. [1] http://www.strongtowns.org/journal/2015/12/16/best-of-2015-density-question http://www.strongtowns.org/journal/2015/12/16/best-of-2015-d...