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Speed-Flow-Density Relationships: The Fundamental Basis of Uninterrupted Flow Analysis

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The Highway Capacity Manual: A Conceptual and Research History

Part of the book series: Springer Tracts on Transportation and Traffic ((STTT,volume 5))

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Abstract

Speed-flow-density relationships are commonly calibrated to what are referred to as “ideal” or “base” conditions. The latter term is most commonly used in recent years, as the word “ideal” carries a quality connotation that is not necessarily accurate.

It is, however, important to know what the base conditions are, as highway capacity analysis methodologies most often apply various adjustment factors (Chapter 4) to the characteristics depicted for the defined base conditions.

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Authors and Affiliations

  1. Emeritus, NYU Polytechnic School of Engineering, New York, NY, USA

    Roger P. Roess

  2. Transportation Engineering, NYU Polytechnic School of Engineering, New York, NY, USA

    Elena S. Prassas

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  1. Roger P. Roess
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  2. Elena S. Prassas
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Correspondence to Roger P. Roess .

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Roess, R.P., Prassas, E.S. (2014). Speed-Flow-Density Relationships: The Fundamental Basis of Uninterrupted Flow Analysis. In: The Highway Capacity Manual: A Conceptual and Research History. Springer Tracts on Transportation and Traffic, vol 5. Springer, Cham. https://doi.org/10.1007/978-3-319-05786-6_6

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  • DOI: https://doi.org/10.1007/978-3-319-05786-6_6

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-05785-9

  • Online ISBN: 978-3-319-05786-6

  • eBook Packages: EngineeringEngineering (R0)

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