The Slug Line automated

From “The Oil Drum” High-Tech Hitchhiking a proposal to automate what has been called “Casual Carpooling” or “Instant Carpooling”, or Slugging. This is an idea the late Mel Webber at Berkeley had in principle, but now it seems the technologies are in place to execute.
One should also see the book Curb Rights to anticipate the problems this might generate.