Ideal for undergraduate and graduate courses in traffic engineering and transportation planning,, Transportation Engineering: An Introduction, Third Edition covers a wide spectrum of topics drawn from such areas as transportation economics, land-use planning, traffic flow, geometric design, highway capacity and facility design, public transportation, energy considerations in urban transportation planning, evaluation of transportation projects, and safety issues. This book provides both students and practitioners with a variety of worked examples illustrating the basic concepts. Material from the latest Highway Capacity Manual (circa 2000) and the AASHTO Publications have been incorporated. The four appendices at the back of the book contain (A) a concise reference on the elements of engineering economics, (B) an introduction to probability and statistics, (C) useful statistical data from the Bureau of Transportation Statistics, and (D) conversion tables for units of measurement.