FWD Calibration Centers Ensure States Get Quality Data: States Use Falling-Weight Deflectometer (FWD) Data to Develop More Cost-Effective Rehabilitation Strategies

Details

• Corporate Creators:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Resurfacing
  • Rehabilitation (Maintenance)
  • Pavement maintenance
  • Calibration
  • Falling weight deflectometers
  • State departments of transportation
  • Cost effectiveness
  • FWD
  • Roadway rehabilitation
• Publication/ Report Number:
  FHWA-RD-02-067
• Resource Type:
  Brief
• Geographical Coverage:
  United States
• Corporate Publisher:
  Turner-Fairbank Highway Research Center
• Description:
  In 1999, $5.5 billion in Federal highway funds were spent on pavement
  
  rehabilitation and resurfacing. To make the best possible decisions
  
  about where and when to conduct pavement rehabilitation work, State departments of transportation (DOTs) need extensive data on the structural condition of pavement. To measure the structural condition of pavement, most pavement engineers rely on falling-weight deflectometer (FWD) technology. FWDs "thump" the pavement and record information about its structure and integrity. But like all sophisticated tools, the FWD must be properly calibrated. If it is not, measurements will be inaccurate. Inaccuracy wastes precious budget dollars.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/4874/dot_4874_DS1.pdf
• File Type:
  [PDF - 103.16 KB]
• Collection(s):
  US Transportation Collection ; Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:74965ff24db41a91435c0b236bb275c9edeef7b9ffb089e988d74f2f718c7f268e77379d99fb0504d1e854d68c2531917459b07109702ba9c881f492bfc28f77