There was a pretty informative article in the Mountain Express about it, check it out
here.
After considering it, I think I've come to the conclusion that the Alternative 4b, as is, is inferior to the NCDOT design. To copy and paste my comments from a different Mountain X article:
1. The interchange of Patton Avenue and I-26 sucks in the ADC alternative 4b. High speed offramps from both directions of Patton Avenue completely negate any attempts at making Patton a more people/pedestrian/bike friendly road. This is the deal breaker. There’s no point to putting sidewalks and bike paths on Patton if you’re just going to have high speed offramps at the other end. Fix it so Patton has no high-speed ramps, and I could go with either NCDOT or ADC.
The other deficienceis of alternative 4b:
2. I-26 goes under Patton. With the ADC alternative, we wind up with an enormous viaduct. NCDOT doesn’t have the budget to do something really distinctive, so it will not look good.
3. Alternative 4b involves a weave between the I-240W onramp and the Patton Avenue onramp. There are no weaves in the NCDOT alternative 4. If this weave were necessary to yield a significant improvement in character or design then I’d say it’s worth it, but the ADC design really isn’t much of an improvement, if it’s even an improvement at all.
In contrast, I would say that the only deficiency of the NCDOT alternative 4 is that the routing of I-240 is a bit (maybe a quarter mile) longer. The problem of how much land it takes up is an “issue” but then again, land along the west bank of the French Broad is pretty much inaccessible, and besides, how many people will miss a couple holes on the Crowne Plaza golf course and a trailer park?
The improvements ADC should push for are: 1. Better design near Downtown. 2. Better design of the I-26 / Patton interchange. The plan has the ramps pushed really far apart which seems awkward. Find a way to make it more compact. A SPUI might be nice.