Counterpoint: by the time this were to happen *guffaw* the Bottineau LRT line would be up and running. These commuters (because that's exactly to whom you're referencing) who don't want to sit in traffic in the Warehouse District would have the option of taking LRT home to the NW 'burbs.My only problem with your suggestion is that you now will have cars flying thru the warehouse district to reach the entrance to 94. Not much of a residential neighborhood when you have how many cars using it to get to 94. With stoplights you have added air pollution, possible gridlock. Just what I want to live with. Again, what you put up in theory does not always fly in reality.
Or, maybe as a concession someone could figure out how squeeze in ramps directly from 394 to 94 for that particular traffic movement. Obviously that wasn't done from the start because the aforementioned longass ramps were a shortcut for that traffic—and a valid one when the NL was an industrial wasteland. It's not, now; it's an up-and-coming neighborhood that is needlessly cut in two.
Or, drivers could take 7th Street. That's 2 blocks away, wide/fast as hell, and leads directly to the A side of the ABC ramps. In fact, after thinking a little more about this, with access to 94 at Broadway and 7th/Olson/Lyndale these ramps to/from 3rd/4th aren't even necessary. Take them out altogether and hypothetical idling traffic problem: solved.
Or, heaven forbid, the people who are suddenly inconvenienced because their precious mile-long ramps from 94 directly into DT have been removed might consider moving into this hip new neighborhood they're forced to drive through.