Quote:
Originally Posted by hereinaustin
What would it cost to drop all $2.4 Billion on building a totally new line just for commuter rail and not utilizing the UP line at all? If it costs $1.6 Billion to build a new UP line towards the east from scratch and a another $800 million to renovate the existing UP line, why not spend all the funds on creating the most ideal route possible (i.e. no at-grade crossings)? Why does the UP line even matter? It's not all that well-aligned.
Or are the funds dependent on building the UP line?
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Excellent questions which I can't answer, but I can speculate.

The existing UP corridor gets you into downtown Austin and San Antonio, and runs very close to all the other downtowns in all the other cities and towns. A new corridor will not, even if it followed the I-35 corridor.
Note the Texas Central HSR corridor following transmission lines will not either, only reaching downtown Dallas by running through the publicly owned Trinity River Floodway.
But let's look at possible alternate rail corridors the Lone Star Rail could use.
(1) I-35, (2) an electric transmission line, and (3) Tx130 Turnpike.
(1) I-35 median was used to expand the freeway to 6 and 8 lanes, it's not available for a rail line. Although running the rail line between the freeway's main lanes and the service roads is possible, just not sure how affordable that would be.
(2) Electric transmission lines bypass downtowns of cites, that's one reason why Texas Central picked them to decrease costs. Commuter rail trains need higher density around their stations, not relevantly vacant farm and ranch land.
(3) The median of TX130 might be the preferred alternative for the new bypass UP rail corridor. The turnpike bypasses all the towns and cities, which is why the turnpike was built there, to lessen costs. Again, idea for freight trains to bypass congestion, but not ideal for commuter trains. Although it would be idea for a HSR line wishing to minimize stations to maintain higher train speeds.
The UP corridor is ideal for commuter trains because it approaches downtowns and allows placing stations in pockets of higher density all along the route. Any other routing will probably have to run in very low density just to reduce the capital costs so it can be affordable to build.
So I fully understand why they need the UP corridor. What I can't understand is why it is cheaper to build an entirely new bypass corridor for the UP to the east instead of building a second or third track in the existing UP corridor. I believe it would be cheaper to copy what UTA did in Utah, i.e. buy half the UP corridor and lay dedicated passenger tracks in that half. When and where the UP needs to reach industries and sidings across the dedicated passenger track, build a flyover like UTA did; passenger train tracks over the existing freight main or spur tracks. Where the corridor is too narrow to fit all the tracks, it might be necessary to purchase some more land. But I don't expect that much extra land would have to be purchased.
While the EIS is underway, and even assuming the FRA funds half the capital costs, there's still no funding sources identified for the local 50% match. The idea that the State of Texas will start financing commuter rail operations in Austin when it has refused to do so in Dallas and Houston will cause politicians representing half the population of the state to have severe digestion ailments. The lack of state funding also applies for Houston to Dallas slow or high speed intercity train service. I just don't see the state funding any part of commuter or intercity train service between Austin and San Antonio. There's no precedent set by the state funding train services between it two largest metros.