Not sure what areas they are truly considering but I-35 isn’t a race track as it is with all the congestion. Secondly certain counties already have reduced speed limits due to the smog/pollution crap.
The new road should be the only road those damn big trucks can drive on, leave I35 for other traffic. Drove it the other weekend, couldn’t believe the traffic, not helped by 18 wheelers overtaking each other with a 2mph differential.
Oh, and on the new road make the first exit ramp at its proposed first US Customs facility in Kansas City :)