Hello Lunatic Fringe, guess what! It's not supposed to, hence the name "Trans-Texas Corridor". The idea is to route all of this "trans-Texas" traffic onto a highway system where it is routed around the major cities to help alleviate metropolitan auto traffic and cut down on smog to boot. You might want to read up on it.
Fine. Then why the commuter and high-speed rail lines??
I'm not going to drive an 1 1/2 hours to get to a high speed train station East of Dallas to travel to Austin, where I then have to rent a car to drive another 45 minutes to get to Austin. I could drive straight through from Dallas faster.
And why is commuter light rail needed in non-metro areas? Who needs commuter rail in Killeen or Tyler?
The whole project is an obscene waste of money.
More....
If this were simply a highway project, I'd be fine with it. But it's not.