I've seen 3 major highways built around Detroit while I've lived here. There was very little choice among normal citizens who live in the line of "progress". 375 ruined some dynamic neighborhoods because those people lacked the power to force a change in the proposals. 696 spent significant additional money accommodating the citizens who had the power to modify the proposals. Highways make cities very unwalkable as well as taking space that could be better used
@DeprecatedCompatV2@graeghos_714 The assembly plants in Detroit look like train depots. That's the most efficient way to move in materials and move out products. A multi-lane freeway is not necessary, a set of tracks can handle much higher volumes of goods and people.
Unfortunately most rails are owned by those moving freight and they have right of way on their rails over transit trains. Every auto factory has rails connecting it so it is feasible with a little change and many suppliers are near the factories so light rail and bus service could feed those locations.