Research and recommendations for a statewide sign retroreflectivity maintenance program.

Details

• Alternative Title:
  Project title: Development of a statewide sign maintenance program
• Creators:
  Carlson, Paul J. ; Higgins, Laura ; Re, Jon
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Traffic control devices
  • Traffic signs
  • Traffic signals
  • Reflectorized materials
  • Retroreflectivity
  • Traffic signs and signals--Texas
  • Reflectors (Safety devices)
• Publication/ Report Number:
  FHWA/TX-12/0-6408-1 ; 0-6408-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical report; Sept. 2009-Aug. 2011.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  This study evaluated TxDOT's current sign retroreflectivity maintenance practices, assessed their ; effectiveness, and recommended statewide sign retroreflectivity maintenance practices that could be easily ; and effectively implemented to ensure that TxDOT would be in compliance with the new MUTCD language ; related to minimum sign retroreflectivity. The researchers measured the retroreflectivity of almost 1400 ; signs across the state to assess the effectiveness of TxDOT's current practices, evaluated a mobile sign ; retroreflectivity measurement technology, visited district and maintenance offices across the state, studied ; the effectiveness of using the calibrated sign and comparison panel procedures of the visual nighttime sign ; inspection maintenance method, developed a standardized form for making and documenting nighttime ; inspection, and made recommendations for changes in TxDOT's current sign retroreflectivity maintenance ; practices. Researchers concluded that TxDOT's current practices are quite effective compared to the ; minimum retroreflectivity levels in the 2011 Texas MUTCD. Three specific recommendations are provided ; that will bring TxDOT's current practices into compliance with the 2011 Texas MUTCD. First, TxDOT ; should provide calibration signs to the maintenance sections. Second, a standardized form should be used to ; conduct inspections and document inspections. Finally, a training program should be implemented to ; educate the inspectors on how to conduct the inspections and the importance of sign retroreflectivity.
  More +
• Format:
  PDF
• Funding:
  0-6408
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24183/dot_24183_DS1.pdf
• File Type:
  [PDF - 1.92 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:62384ffc6451e49bc4aa86a5d8050076d47879b0b57972264e7757ec4e9aa93c25081ffe52e0fdc88f07d908d06cb53b221660957cf6430221bada914e2f0dbf