Development of Pavement Structural Criteria Using Data from Traffic Speed Deflectometer Pilot Study

Currently, Virginia Department of Transportation (VDOT) can only assess the functional condition of its pavement network based on what is observable at the surface. This process neglects the underlying structural capacity which influences the rate of deterioration of a pavement. Since the underlying structural condition is unknown, VDOT is unable to accurately allocate pavement rehabilitation funding. This study proposes to conduct testing using the Traffic Speed Deflectometer (TSD) - a tractor-trailer mounted system that uses a series of Doppler laser sensors to measure the pavement deflection velocity which is then converted to a deflection measurement - on an approximately 4,000 mile portion of the highway network and to develop criteria that VDOTs Maintenance Division can use to assign rehabilitation treatments using the structural capacity of the pavement.

Language

• English

Project

• Status: Active
• Funding: $1383308
• Contract Numbers:

  111810

• Sponsor Organizations:

  Virginia Transportation Research Council

  530 Edgemont Road
  Charlottesville, VA  United States  22903
• Performing Organizations:

  Virginia Transportation Research Council

  530 Edgemont Road
  Charlottesville, VA  United States  22903
• Principal Investigators:

  Bowers, Ben

  Diefenderfer, Brian

• Start Date: 20170701
• Expected Completion Date: 20200331
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Deflectometers; Deterioration; Pavement maintenance; Pavement performance; Structural health monitoring; Traffic speed; Truck mounted attenuators
• Identifier Terms: Virginia Department of Transportation
• Subject Areas: Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 01640291
• Record Type: Research project
• Source Agency: Virginia Department of Transportation
• Contract Numbers: 111810
• Files: RiP, STATEDOT
• Created Date: Jul 5 2017 9:54AM