What Can Work
Seattle's light rail line just got a rating of "high" from the Feds meaning it's very likely they'll get the maximum possible financial contribution. Why? From the posting:
King County Executive Ron Sims said a big factor in the rating was the travel time savings. A bus from University Hospital near Husky Stadium to downtown takes 25 minutes during the afternoon rush hour compared with a projected 9 minutes for the light rail line. A bus from University Hospital to Capitol Hill takes 22 minutes compared with 3 minutes for light rail. And a bus from downtown to Capitol Hill takes 14 minutes compared with 6 minutes on light rail.
Compare and contrast to the route a rider of Capital Metro's commuter rail route would take to get from one of the northwestern park-and-rides to their office at UT or the Capitol. When you add in the shuttle bus trip through traffic (from the commuter rail station to the campus or capitol), it is doubtful that any time will be saved compared to the existing 183-corridor express buses (which also operate in traffic, but at least don't go out of their way on a dogleg through East Austin, and don't require a transfer to a second, much slower, vehicle).
Of course, Austin's 2000 light rail route would have gone from those park-and-rides straight to UT and the Capitol and then down Congress Avenue. But, sure, this will work just as well, and the Feds will be just as happy. Right.