Freely flowing traffic is a good thing, right? And affordable motoring is good too, isn't it? Most motorists in most cities would surely agree. Maybe you would too? But as citizens and voters I think we need to be careful what we wish for. When political leaders decide that the central goals of urban transport policy are 1) solving traffic congestion and 2) keeping driving affordable, they may make themselves popular with motorists, but they also risk gradually turning their city into a monster. I argued along these lines in a talk I gave on Wednesday to a couple of hundred junior college (high school) students (the presentation is at the end of this post). It was a non-technical talk on basic priorities in urban transport planning. Below is part of my reasoning. The Los Angeles region is not the world's most automobile-dependent city but it is the only mega-city to try so hard to keep driving fast and cheap. When faced with traffic problems it is tempting to ju...