No, you've got it backwards. The interchange at the West Bypass and the Northwest Tollway (Addams) has all possible ramps. The interchange at the West Bypass and the Tri-State does not.
I guess it's a strategy to separate city-to-suburbs traffic on the Elgin-Ohare and NW Tollway/Kennedy from circumferential traffic on the Tri-State.
Unfortunately, this massive new project will not eliminate my biggest pet peeve - you cannot go from the inbound NW Tollway to Rosemont directly. You have to go into O'Hare and loop around the terminals then backtrack, or take a circuitous detour via Mannheim. None of it is signed.
