The new edition of Garber and Hoel's best-selling text focuses on giving students insight into all facets of traffic and highway engineering. Students generally come to this course with little knowledge or understanding of the importance of transportation, much less of the extensive career opportunities in the field. Transportation is an extremely broad field, and courses must either cover all transportation modes or focus on specifics. While many topics can be covered with a survey approach, this often lacks sufficient depth and students leave the course without a full understanding of any of the fields. Garber and Hoel's text focuses exclusively on traffic and highway engineering. They begin with a discussion of the pivotal role transportation plays in our society, including employment opportunities, historical impact, and the impact of transportation on our daily lives. This approach gives students a sense of what the field is about and an opportunity to consider some of its challenges. Later chapters focus on specific issues facing transportation engineers. Using a pedagogical tools such as worked problems, diagrams and tables, reference material, and realistic examples demonstrate how the material is applied. The new edition has been updated to reflect recent changes in guidelines set forth by HCM 2000 and AASHTO. Professional engineers have also found this material helpful, making it a great reference for practicing engineers in the field.