Assessment of the durability of wet night visible pavement markings : wet visibility project phase IV.

Details

• Creators:
  Gibbons, Ronald B. ; Williams, Brian M.
• Corporate Creators:
  Virginia Tech Transportation Institute
• Corporate Contributors:
  Virginia. Dept. of Transportation ; United States. Federal Highway Administration
• Subject/TRT Terms:
  Durability Grooved Markings Night Night Visibility Pavement Markings Pavements Raised Road Markings Reflectorized Road Markings Road Marking Materials Road Markings Road Marking Tapes Rumble Stripes Rumble Strips Traffic Control Devices Visibility Visibility Distance Wet Night Retroreflectivity Wet Weather

  More +
• Publication/ Report Number:
  VCTIR 12-R13
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Edition:
  Final contract; Mar. 2009-Feb. 2012.
• Corporate Publisher:
  Virginia Center for Transportation Innovation and Research
• Abstract:
  This project encompassed a research effort to establish the durability of pavement markings in an on-road installation. Six
  
  marking technologies were installed on a portion of Route 460 in Blacksburg, Virginia. A human factors experiment in natural
  
  rain conditions was performed to establish the visibility needs of the driver. The retroreflectivity of the markings was measured
  
  at intervals of 2 to 5 months, with six measurements over the course of 23 months. The numbers of snow plow crossings and
  
  chemical treatments were also measured.
  
  Although all markings lost a considerable amount of retroreflectivity after the first winter, the markings installed in
  
  grooves or in rumble strips were shown to retain more retroreflectivity and receive less damage than markings installed on the
  
  surface of the roadway. Twenty-three months after installation, the retroreflectivity for all markings in active rain conditions
  
  had dropped below the 150 mcd/m2/lx minimum recommended from previous research. The reflective tape was the closest to
  
  maintaining the minimum with a mean retroreflectivity of 137mcd/m2/lx in 1 in/hr rain. Several other markings maintained a
  
  retroreflectivity above 84 mcd/m2/lx; this may still provide a benefit over standard paint.
  
  The study recommends that VDOT’s Traffic Engineering Division install pavement markings in grooves or in rumble
  
  strips. VDOT will determine where the use of grooves or rumble strips is appropriate. Because pavement marking visibility is
  
  more critical for high-speed roadways such as interstate roadways and major arterials, these roads should be the highest priority.
  
  Grooved markings may also be desired for high-volume roadways where markings may be exposed to higher levels of wear
  
  from traffic. The study markings on Route 460 in Blacksburg should be monitored for two more years. The study team should
  
  make the measurements after each winter through 2013 and report the findings to VDOT in a brief report. VDOT staff should
  
  perform additional cost-benefit analyses to address standard VDOT policy, procedures, and practices and possible supplier
  
  warranties
  
  
• Format:
  PDF
• Funding:
  93111
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:cee0d6ff3012f964398386898c94319216e0e03f3e1c2d11c1d94d5c0fec5073
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24476/dot_24476_DS1.pdf
• File Type:
  [PDF - 831.38 KB ]