Evaluation of solar-powered raised pavement markers.

Details

• Creators:
  Ross, June H. ; Brooks, Eric W. ; Andersen, Carl K.
• Corporate Creators:
  Oregon. Dept. of Transportation. Research Unit
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Road markings
  • Reflectorized materials
  • Evaluation
  • Road markings--Evaluation
  • Reflectors (Safety devices)--Evaluation
• Publication/ Report Number:
  FHWA-OR-RD-08-07
• Resource Type:
  Tech Report
• Geographical Coverage:
  Oregon
• Edition:
  Final report.
• Corporate Publisher:
  Oregon. Dept. of Transportation. Research Unit
• Abstract:
  An evaluation of a limited number of solar-powered raised pavement markers (SRPMs) was conducted to ; determine if this type of marker would be more visible than retroreflective markers in some situations on ; Oregon highways. SRPMs typically use Light Emitting Diodes (LEDs) that are powered by solar cells. Some ; markers have retroreflective surfaces as well. The Oregon Department of Transportation, Research Unit, ; performed preliminary tests which included environmental tests (extreme temperatures, immersion), optical ; performance tests, and observation tests. Selected markers were sent to the Federal Highway Administration’s ; Photometric and Visibility Laboratory (PVL) at the Turner-Fairbank Highway Research Center in McLean, ; Virginia for additional evaluation. A series of tests was performed to measure both the LED signal and the ; retroreflected light. It was found that each type of marker had significant shortcomings, so the project was ; terminated prior to field trials being performed.
• Format:
  PDF
• Funding:
  SPR 304-441
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/21839/dot_21839_DS1.pdf
• File Type:
  [PDF - 2.96 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:308e9cd81a144d5886f6d178a6620b1bcb7454d234b54a8ad88ddee154dbb47384786df8cbab7e0f9200b8c3e4d53d29fceb89092a12e7913fedab043d494acf