Quote Originally Posted by ghettopalmetto View Post
Empirical evidence shows that many of those car trips would simply disappear, as freeways are known to induce driving. Bear in mind that any trips diverted from the freeway to Michigan Avenue [[for example) would be a boon to businesses located along that road.
Of course then there's the community and economic benefit. A few days ago I drove down Grand River, where it runs parallel to I-96. Literally no businesses left except a gas station and a White Castle. Running I-96 traffic down Grand River would make the area hopping again.

If you take a look at the traffic volume map that was provided, Detroit's main roads [[Woodward, Fort, Gratiot, etc.) have traffic volumes pale in comparison to the freeways. You may have to widen a road here or there, but the volumes would stay manageable.