reprint (by W. Scharnhorst ) The core problem of creating sustainable cities is as well-known as it is tricky. On the one hand, everyone who's thoughtful about urban sustainability admits the environmental, economic, and social problems of sprawl and auto-dependency. On the other hand, everyone who's realistic about the situation must admit that people are crazy about their cars and pretty keen on low-density, single-family homes, too. Most of the modern attempts to reconcile this problem, at least in U.S. metropolitan areas, create more problems of their own. Smart growth initiatives to increase densification, reduce car use are often met with vehement objections — some irrational, some genuine — on the grounds of personal choice. Often these efforts are simply ignored by local government. Meanwhile, promoting livability through public transit can run into financial and political hurdles too tall to overcome. For these reasons and others, Mark Delucchi and Kenneth S. Kuran...
