Development of a laser-based sensor to measure true road surface deflection.

Details

• Creators:
  Prozzi, Jorge Alberto ; Claudel, Christian ; Pasupathy, Praveen ; Verma, Ambika ; Hernandez, Joaquin B.
• Corporate Creators:
  University of Texas at Austin. Center for Transportation Research
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Deflectometers
  • Deflection
  • Deflection tests
  • Load tests
  • Lasers Deflection
  • laser system
  • network-level study
  • laser scanner
• Publication/ Report Number:
  FHWA/TX-16/0-6873-1;Technical report 0-6873-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Texas
• Corporate Publisher:
  University of Texas at Austin. Center for Transportation Research
• Abstract:
  The high-speed measurement of accurate pavement surface deflections under a moving wheel at a networklevel ; still remains a challenge in pavement engineering. This goal cannot be accomplished with stationary deflectionmeasuring ; devices. Engineers recognize the usefulness of pavement deflection data to evaluate and monitor pavement ; response and existing pavement structural conditions. Network-level studies of pavement structure are being ; performed but have major limitations such as lack of accurate measurements, no true deflection is measured at any ; point, complexity, and safety concerns. The purpose of this project is to develop a laser measuring system for networklevel ; studies that continuously moves along the pavement at speed above 10 mph.
• Format:
  PDF
• Funding:
  TxDOT project number 0-6873
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32186/dot_32186_DS1.pdf
• File Type:
  [PDF - 8.07 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:f784d06be8e11df89487b6b058c2c9720bc23df773d6fc6c79b77d6fd828a64f94cc487fcc3a8d71792c47b32f9e24a1ff94e50443bcdf36eb04f88290c3cbea