They have been talking about it here in Texas for over a year now. In Texas it's called the Trans-Texas Corridor. 6 lane north and south with a railroad down the center dividor strip. It will run parallel to I-35, and they hope within about 1/4 mile of the interstate. It is planned to be a toll-road with limited entry-exit points.
The is a lot of opposition for the highway by farmers/ranchers, businesses, and towns along the path.
Farmers/Ranchers don't want to give up land that has been in their families for generations. Businesses feel that construction will hinder access to their businesses, and many towns feel that if they don't have and entry-exit at their town, they will loose much of the revenue going by on the super-highway.
They are also talking about a 10-15 year project to build the road, and there is a lot of grumbling that we don't have enough money to maintain the roads we have now, and too much of the money and resources will be directed to the new TTC.
Right now they claim that they will need to buy the land for a 1/2 mile wide right of way right through the center of Texas, but they still don't even have the exact route nailed down yet.
I don't know if the TTC is the right thing, but they need to do something. Right now I-35 is a nightmare to drive on. They keep widening the road but the taffic continues to get worse. If there is the slightest fender-bender, traffic is tied up for 2-3 hours. If there is a major accident, the interstate is often closed and the traffic is backed up for 30-50 miles or more. The worse part is that this happens way too often. At least onec a month and if there is a holiday, it's almost a guarantee that there will be a mojor incident on I-35 that snarles traffic.
...Rich