Most Integrated Regional Economy (metro, Baltimore, transportation, Philadelphia)

[Asderfut]

Which two cities (or metros) more than 75 miles apart have the most integrated regional economies? Other considerations (cultural, media, transportation, etc.) are fair game.

[kidphilly]

Well if by metros would say the bay and Wash/Baltimore are most integrated

Among your list the NYC and Philly metros really blend together in the middle and have some long bonds and many aspects that differentiate the actual cities as well.

Also the closest point of NYC and Philadelphia is actually 46 miles border to border. The 90 miles would be midtown to Center City, but from Staten Island to Northeast is less than 46 miles as the crow flies

[eastmemphisguy]

Miami-West Palm Beach.

[Carlite]

I'm not quite sure of the point here. Between San Diego and Los Angeles, a lot of people commute partway--e.g. San Diego to Irvine, Orange County to Los Angeles. Very few people seem to commute the whole way, and the cities are distinctly different. Camp Pendleton, the Marine base, provides the open space that separates the San Diego urbanized area from the Los Angeles-Orange County urban area. It would be nice if the schedules for the two commuter trains (Coaster--San Diego to Oceanside; Metrolink--Oceanside to LA) were linked the way they are between Philadelphia and New York.