Highway Capacity: Practical Applications of Research

A rational and practical method for the determination of highway capacity is essential for the sound economic and functional design of new highways and in the adaptation of existing roads to present or future needs. The cooperative efforts of the Bureau of Public Roads, the Highway Research Board Committee on Highway Capacity and many state, county, and city engineers, intensively applied in many places and for a number of years, have resulted in a great number of field observations. This report uses the data collected in these field observations to offer a practical guide on highway capacity that can provide engineers designing a new highway or revamping an old one assurance that the resulting actual capacity will be calculated. This issue of Public Roads offers the second of a two-part report on highway capacity. The first part, published in the October 1949 issue, included an introduction to the report, definitions, and sections on maximum observed traffic volumes, fundamentals of highway capacity and roadway capacities for uninterrupted flow. This part addresses signalized intersections, weaving sections and unsignalized cross movements, ramps and their terminals, and relating hourly capacities to annual average volumes and peak flows.


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  • Accession Number: 01148007
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 4 2010 10:53PM