Freeway and Interchange Geometric Design Handbook

The primary objective of this handbook is to present the fundamental concepts and practices related to the state-of-the-art freeway and interchange geometric design. While it is recognized that geometric design procedures for freeways and interchanges may vary among different agencies, this handbook sets forth techniques and procedures that have been successfully applied to several constructed or reconstructed projects. This handbook focuses on geometric and operational characteristics of freeways and interchanges, including toll facilities and high occupancy vehicle (HOV) managed lanes. Nearly every chapter of the handbook describes geometric design and operational analysis procedures with examples and an array of figures, tables, and photographs. A systems planning and engineering approach is applied in the geometric design process. The process considers all roadway facilities (freeway, interchanges and crossroads), while incorporating other transportation modes and the accommodation of pedestrians and bicycles. The handbook is intended to be used by planners and engineers with a background in the fundamentals of geometric design and traffic engineering. Although not specifically developed as a textbook, it should be a useful reference for educators and students in the interrelated fields of geometric design and traffic planning and engineering. By using the results of current research and experience in the planning, geometric design and operation of constructed or reconstructed freeway and interchange projects, this hand should prove to be a valuable tool for skilled planners and engineers as a supplement to the American Association of State Highway and Transportation Official’s (AASHTO) A Policy on Geometric Design of Highways and Streets, 5th Edition (Greenbook) and other design publications. It is also intended to compliment the Greenbook, the Manual on Uniform Traffic Control Devices (MUTCD) and other design publications.