Development of measures to improve field performance of retroreflective raised pavement markers.

Details

• Alternative Title:
  Project title: Raised pavement marker improvements
• Creators:
  Zhang, Yunlong ; Tong, Jiaxin ; Carlson, Paul ; Hawkins, Gene ; Keating, Peter
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office
• Subject/TRT Terms:
  • Traffic control devices
  • Retroreflectivity
  • Durability tests
  • Electronic traffic controls--Mathematical models
  • Traffic signs and signals--Mathematical models
  • Traffic flow--Mathematical models
  • Live loads--Mathematical models
  • Road markings--Mathematical models.
• Publication/ Report Number:
  FHWA/TX-09/0-5089-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical report; Sept. 2004-Aug. 2007.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  Retroreflective raised pavement markers (RRPMs) are routinely used in Texas to supplement highway ; pavement markings. In recent years, problems of marker failure such as poor retention on pavements, ; physical damage, and loss of retroreflectivity are common. ; All marker models used in Texas meet the requirements set by American Society of Testing and ; Materials (ASTM) specifications. However, their performance varies significantly. The results from existing ; testing methods also do not correlate with field performance. It is therefore critical to identify or develop new ; lab testing methods that can accurately predict marker performance in the field. ; This report presents the research conducted over the three-year period to develop new lab tests that ; can predict marker field performance. Four field test decks were installed and monitored. Retroreflectivity ; and physical condition data were collected on six selected RRPM models at four deck locations that were ; selected based on traffic condition, pavement surface type, geographic and other environmental factors. ; Currently recommended ASTM tests, modified ASTM tests, and other new lab tests were conducted. Finite ; element modeling (FEM) of RRPMs under tire-marker impact and lab setting testing was also conducted. ; The marker performances from the test decks, under lab tests, and in simulation are compared. Based on the ; results of comparisons, a new lab test that best correlates with the field performance of the RRPMs is ; recommended.
  More +
• Format:
  PDF
• Funding:
  0-5089
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16833/dot_16833_DS1.pdf
• File Type:
  [PDF - 6.34 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:5da7be8236b7b32ccfe0b0656841b456d486a2991eaa150d4147899147f81329