A semi-automated faulting measurement approach for rigid pavements using high speed inertial profiler data.

Details

• Creators:
  Nazef, Abdenour ; Mraz, Alexander ; Iyer, Shivprakash ; Choubane, Bouzid
• Corporate Creators:
  Florida. Department of Transportation ; Applied Research Associates, Inc.
• Subject/TRT Terms:
  Faulting (Pavements), Profilers Pavement Joints Rigid Pavements
• Resource Type:
  Tech Report
• Geographical Coverage:
  Florida
• Corporate Publisher:
  Florida Department of Transportation
• Abstract:
  Faulting measurements have traditionally been conducted manually using faultmeters. However,
  
  operating any manual device such as a faultmeter close to vehicular traffic is hazardous to the operator
  
  and the traveling public. Automated methods like those associated with high-speed profilers, offer a safer,
  
  more efficient, and cost effective alternative. Therefore, there is a need to develop an automated method
  
  for measuring joint faulting using longitudinal profiles from high-speed profilers.
  
  A study was initiated with a primary objective of determining an appropriate profiler sampling interval to
  
  accurately locate transverse joints. A second objective was to determine how well faulting estimated
  
  from profile elevation compares with faulting measured with a Georgia Faultmeter.
  
  An algorithm was developed which can accurately detect on average 95% of transverse joints from profile
  
  data collected at highway speed using a 0.68 inch (17.3 mm) sampling interval. This algorithm was also
  
  adapted to estimate faulting measured with a Georgia Faultmeter in accordance with the AASHTO R36-
  
  04 Protocol. Although the algorithm results are repeatable it over-estimated the faulting at joints by 0.05
  
  in (1.3 mm) to 0.06 in (1.5 mm) compared to faulting measured with the Georgia Faultmeter.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:3b10209499934f2ce9507913a3f62296f7f066d73f619a18a69f8a0165c7c0dd
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/21024/dot_21024_DS1.pdf
• File Type:
  [PDF - 1.37 MB ]