The operating speed of a road is the speed at which motor vehicles generally operate on that road.

The precise definition of “operating speed”, however, is open to debate. Some sources, such as the AASHTO, have changed their definitions recently to match the common use of the word. In 1994, the AASHTO Green Book and defined it as “the speed at which drivers are observed operating their vehicles during free-flow conditions.”

See also

  • Speed limit
  • Design speed

References

  1. ^ A Policy on Geometric Design of Highways and Streets: 1994. American Association of State Highway and Transportation Officials. ISBN 978-1560510684. 
  2. ^ “Design Speed, Operating Speed, and Posted Speed Practices (Report 504)” (PDF). National Cooperative Highway Research Program.
  3. ^ A Policy on Geometric Design of Highways and Streets: 2001. American Association of State Highway and Transportation Officials. ISBN 978-1560511567. 


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