How to navigate the ACL Festival - 10/03/13
Any experienced Austin resident knows if you're not going to the ACL Festival, don't go near the Zilker Park area this weekend, and of course next weekend. Barton Springs Rd will be closed the whole weekend from Robert E Lee to Rollingwood Dr. And all the traffic around the area causes just as much traffic trouble as the closures.
So here's what's open... Mopac, Lamar Bvld (but it will be crowded around Barton Springs Rd, and Lady Bird Lake). Cesar Chavez St, 5th, 6th, & 15th Sts will also be open. Just keep in mind there are closures for the shuttle buses picking up and dropping off at Republic Square Park at Guadalupe & 4th St.
If you're heading down there, and you have a bike, I'd take it. It's definitely easier than walking. A day of walking and standing and more walking is exhausting. I've done it and I wanted to cry on the walk home.
The shuttle bus is also a good option. You can catch it at Republic Square Park. But if you live north you can always take the Metro Rail into downtown!
Plan your route through CapMetro here: http://www.capmetro.org/planner/
Here's some info on parking in downtown: http://austintexas.gov/page/parking-spots-downtown
Here's the link for info from ACL on how to get there: http://www.aclfestival.com/travel/