What des the Boston-Washington corridor have in common with the Quebec City–Windsor Corridor?
Quebec City–Windsor Corridor: The Quebec City–Windsor Corridor is the most densely populated and heavily industrialized region of Canada. Quebec City–Windsor Corridor:  In its relative importance to Canada's economic and political infrastructure, it has many similarities to the Northeast megalopolis in the United States. Northeast megalopolis: The Northeast megalopolis (also Boston–Washington Corridor or Bos-Wash Corridor) is the most heavily urbanized region of the United States, running primarily northeast to southwest from the northern suburbs of Boston, Massachusetts, to the southern suburbs of Washington, D.C., in Northern Virginia.
economic and political infrastructure