This book contains selected papers from the 1995 Asilomar Conference on Sustainable Transportation Energy Strategies. The participants addressed the question "Is Technology Enough?" to achieve substantial and timely reductions of transportation-related air pollution, greenhouse gas emissions, and petroleum dependence in the U.S. In this resulting edition, national experts present analyses of technical opportunities and prospects for realizing them, covering both near-term and long-term prospects for cars, light trucks, freight trucks, rail, and air as well as the use of alternative fuels.