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:
  Reflectorized Materials Reflectors (Safety Devices) Retroreflectivity Traffic Control Devices Traffic Signals Traffic Signs Traffic Signs And Signals--Texas
• 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.
  
  
• Format:
  PDF
• Funding:
  0-6408
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:62384ffc6451e49bc4aa86a5d8050076d47879b0b57972264e7757ec4e9aa93c25081ffe52e0fdc88f07d908d06cb53b221660957cf6430221bada914e2f0dbf
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24183/dot_24183_DS1.pdf
• File Type:
  [PDF - 1.92 MB ]