This paper explores multiple dimensions of complexity in a U.S. transportation-policy context, discusses the implications of these dimensions for policy change, and to the degree appropriate, suggests strategies that might be pursued to overcome, or at least better "manageʺ, complexity. Three...

The urban transportation sector's environmental, economic, and social footprint is immense and expanding. Many of the world's most vexing and pressing problems - fossil fuel dependency, global warming, poverty, and social exclusion - are inextricably tied to the transportation sector. Much of...

In this paper, we take a political economy approach to study the introduction of urban congestion tolls, using a simple majority voting model. Making users pay for external congestion costs is for an economist an obvious reform, but successful introductions of externality pricing in transport...