I currently commute from Georgetown to a location off I-35 south of the river (38 miles). I am not able to take a bus for this commute. When I lived in Cedar Park and worked right downtown, I used the bus to commute. It was a heavily used bus route; in fact because of its heavy usage I believe the Metro line was initially mirrored to follow that route. Other (political?) complications led to the route being altered. I like to take public transportation, and do when I travel. I think the strength of my argument would be that additional buses could be rapidly deployed. (Small buses could be used for less traveled routes.) The weakness of my argument may be related to human factors -- I don't know if enough people are truly willing to take a bus versus the flexibility of their own transport. Probably correlates to how long they are stuck in traffic each day for their commute!