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Level of Service of Signalized Intersections

  • Daiheng Ni
Chapter
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Abstract

The objective of this chapter is to develop a methodology to determine level of service (LOS) at signalized intersections, which is an overall assessment of intersection performance and the basis of input to Transportation Improvement Program (TIP) and Surface Transportation Program (STP). Intersection LOS can be determined in two ways, one of which is the procedure documented in Highway Capacity Manual (HCM) and the other is an empirical one through direct measurement in the field.

Keywords

Level of service Control delay Signalized intersection Highway capacity manual Volume to capacity ratio Cycle length Effective green time Field measurement 

References

  1. 1.
    TRB. (2016). TRB highway capacity manual (6th ed.). Washington, DC: Transportation Research Board (TRB).Google Scholar
  2. 2.
    The Institute of Transportation Engineers (ITE). (2010). Manual of transportation engineering studies (2nd ed.). Washington, DC: ITE.Google Scholar
  3. 3.
    FHWA. (2004). Signalized intersections: Informational guide. Washington, DC: Federal Highway Administration.Google Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Daiheng Ni
    • 1
  1. 1.University of Massachusetts AmherstAmherstUSA

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