Day 25 in The Beat Handbook: 100 Days of Kerouactions is titled, "On Hitchhiking," and references the below passage from On The Road.
I've mentioned hitchhiking 6 times in previous posts here on The Daily Beat as follows:
Looks like a pattern to me. That's because hitchhiking was a big part of Jack's journeys, so it has to play a central role in any Kerouac-obsessed writing. In addition, hitchhiking has a certain mystique about it that's easy to have an affinity for if you're interested, like Jack was, in the "mad ones...."
Here's some info for you if you plan to head out across America: Legendary Rob's Hitchhiker's Guide to North America.