Transportation in 2054 seen from 2002: Minority Report

A scene from Minority Report:



What's interesting is that it wasn't some writer imagining this future but a collection of future experts that Steven Spielberg consulted with (from the IMDb trivia page):

"Three years before production began, Steven Spielberg assembled a team of sixteen future experts in Santa Monica to brainstorm out the year 2054 for him. This team included 'Neil Gershenfeld' , professor at the Media Lab at MIT; Shaun Jones, director of biomedical research at DARPA (Defense Advanced Research Projects Agency); William Mitchell, dean of the school of architecture at MIT; Peter Calthorpe, the New Urbanism evangelist; Jaron Lanier, one of the inventors of virtual reality technology; Douglas Coupland, author and commentator; Stewart Brand, author, scientist and co-creator of The Well on-line community; Kevin Kelly, founder of Wired Magazine; Harald Belker, car designer; and 'John Underkoffler' , the science and technology advisor for the movie."

Can't help it but think, is this semi-private transportation? individual cars automated in a constant flow throughout the highway?