RICHARD GILBERT and DAVID BRAGDON discuss the future of transportation systems as we near the end of cheap oil. What are the solutions? How will we get there? Are we facing the end of the internal combustion engine?

Richard Gilbert is a Toronto-based consultant who focuses on transport and energy issues. He was the first president and CEO of the Canadian Urban Institute. His new book, "Transport Revolutions: Moving People and Freight Without Oil" is a must read for anyone interested in the future of transportation.

David Bragdon is currently President of the Metro Council in Portland, Oregon and has been selected by New York Mayor Bloomberg as NYC's director of long-term planning and sustainability.

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