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Practices to Manage Traffic Sign Retroreflectivity (2012) / Chapter Skim
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Pages 27-28

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From page 27...
... Methods and strategies can be modified to improve operations and to better manage resources. ViSual niGhttime inSPection • FHWA intends for agencies to use one or more of the sign inspection procedures documented in Maintaining Traffic Sign Retroreflectivity (FHWA-SA-07-020)
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From page 28...
... The regional data could then be used to extend service life for signs in the blanket replacement or expected sign life methods.
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Key Terms

  • life period
  • calibration sign
  • engineering study
  • visual nighttime
  • control signs

  • expected sign
  • sign life
  • nighttime inspection
  • service life
  • blanket replacement

  • sign retroreflectivity
  • type iii
  • life method
  • retroreflectivity levels
  • sign replacement

  • ing sign
  • additional sign
  • sign sheeting
  • traffic sign
  • inspection procedure

  • ing signs
  • mutcd minimums


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