Agreed. US cities generally have way less population densities than European cities. Basically, the New York City metro and perhaps Chicago (mostly within the E

Agreed. US cities generally have way less population densities than European cities. Basically, the New York City metro and perhaps Chicago (mostly within the El, but perhaps more broadly if we include the commuter rail lines) are the main cities I can think of where public transit makes good economic sense. Most other cities are heavily subsidized and still underused. Hence school buses rather thank kids taking transit to school.