The Highway Capacity Manual: A Conceptual and Research History: Volume 1: Uninterrupted Flow

Abstract

Used as a standard in the planning, design, analysis and operation of highway traffic facilities in the United States since 1950, the Highway Capacity Manual has also been widely used abroad and has inspired other countries to develop similar manuals. The manual has developed the twin concepts of level of service and capacity, and it has presented methodologies that allow highway traffic facilities to be designed on a common basis, as well as allowed for the analysis of operational quality under different traffic demand scenarios. Pedestrian, bicycle and transit issues are also addressed in this manual. There are two volumes, the first of which (Volume 1) is this book. It focuses on the development of basic principles and their application to uninterrupted flow facilities, such as multilane highways, two-lane highways, and freeways. Also discussed in detail are merging, weaving and diverging segments on multilane highways and freeways. In Volume 2 the focus is on interrupted flow facilities, such as unsignalized and signalized intersections, arterials, and urban streets.