The Northeast corridor is America’s busiest rail line. Each day, its trains deliver 800,000 passengers to Boston, New York, Philadelphia, Washington, and points in between. The Northeast corridor is also a name for the place those trains serve: the coastal plain stretching from Virginia to Massachusetts, where over 17 percent of the country’s population lives […] The post How trains linked rival port cities along the East Coast into a cultural and economic megalopolis appeared first on New Hamps