…as we have learned over the last fifty years, living in suburbs has hidden costs that make New York City look like a cozy Swiss hamlet. A hidden but far greater environmental price tag is borne through the driving, emissions, and maintaining and building of new roads.

— J. Sadik-Khan, Streetfight, p. 24.

Due to a mid-word page break, initially read this as “…far greater mental price tag…”

…which I think also works….