for current walkable urbanism, there is tremendous upside potential in
urbanizing their suburbs. These metros, which are highlighted in the table,
include New York City, Philadelphia, Minneapolis-St. Paul, and Chicago—all
older metros that share NIMBY (“not in my backyard”) opposition to density
in their suburbs, even around existing rail stations surrounded by surface
parking lots. However, there are signs this opposition is fading,
especially in the suburbs of metro New York City. If this opposition can be
overcome, these metro areas will accrue great economic, social equity, and
environmental benefits."
http://www.smartgrowthamerica.org/foot-traffic-ahead-2016-download/?key=40234078