Great Lakes Megalopolis the Chicago-Rochester corridor, starting at the Detroit River but continuing east beyond Lake Ontario along the St. Lawrence Seaway to Quebec City and the Gulf of St. Lawrence. Several corridors have interstate highways but no comprehensive passenger rail service. These highway routes pass through both core and fringe areas of the Great Lakes megalopolis. The upper Great lakes region has a marine corridor that connects Lakes Superior, Huron, and Michigan. However, this route does not include parallel Amtrak passenger rail or interstate highway service. I-70 follows the southern fringe of the megaregion. It runs from Kansas City MO to just
History of Milwaukee in the Great Lakes "rust belt," Milwaukee saw the loss of blue collar jobs and the phenomenon of "white flight." The construction of Milwaukee's interstate highway system, beginning in 1964 with the completion of its first seven miles of I-94, heralded an age of greater decentralization, as southeastern Wisconsin suburbs continued to proliferate along interstate corridors, providing an alternative to crowded city living. Nevertheless, a backlash against the freeway in the late 1960s and early 1970s virtually ground Milwaukee's freeway construction to a halt, leaving the city with about 50% of the highways recommended by the Southeastern Wisconsin Regional Planning