Evaluation of retroreflectometers.

Details

• Creators:
  Lindly, Jay K. ; Yellapu, Kalyan ; Supriyasilp, Thitipat
• Corporate Creators:
  University Transportation Center for Alabama
• Corporate Contributors:
  Alabama. Department of Transportation
• Subject/TRT Terms:
  • Evaluation
  • Reflectorized materials
  • Roads
  • Pavement markings
  • retroreflectivity
  • retroreflectometers
• Publication/ Report Number:
  UTCA Report 02402
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report: October 18, 2001 - June 30, 2002
• Corporate Publisher:
  University Transportation Center for Alabama
• Abstract:
  This project performed field-testing and analysis of two pavement marking retroreflectometers: the Laserlux and the ; LTL2000. The Laserlux is a vehicle–mounted device that takes readings at driving speed and produces ; computerized output. The LTL2000 is a hand-held device that also provides computerized output. The Federal ; Highway Administration (FHWA) may soon establish standards for pavement marking retroreflectivity, so the ; Alabama Department of Transportation (ALDOT) wished to establish which of the two devices would be most ; useful in complying with future standards. ; The cost analysis of the two retroreflectometers clearly indicated that the Laserlux is the more cost effective ; retroreflectometer when measuring the approximately 11,000-centerline miles of the ALDOT system for an analysis ; period of eight years. The cost to test pavement markings for those circumstances is approximately $5/mile of ; marking per year for the Laserlux and approximately $35/mile of marking per year for the LTL2000. Only one ; Laserlux and one crew would be required to perform the testing. Eight LTL2000s and eight crews would be ; required to perform the same task.
  More +
• Format:
  PDF
• Funding:
  Alabama DOT Research Project No. 930-512
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16153/dot_16153_DS1.pdf
• File Type:
  [PDF - 341.07 KB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:7ad6a4dd71cb3ce99afbfd6ce09f99fbf19aab5ef747b4b0cb1280053bb08544