01365573

Component

https://doi.org/10.3141/2304-09

http://scholar.google.com...hrie&publication_year=2012

The objectives of this research were to investigate spatial and temporal falling weight deflectometer (FWD) testing rates employed in network-level pavement management by selected state departments of transportation (DOTs) and to recommend specific methods of FWD analysis that best reflected actual pavement conditions. With funding from the Utah DOT, a literature review and a telephone questionnaire survey were performed. FWD data collected from Legacy Parkway and Long-Term Pavement Performance Program Site 49-1001 were analyzed with models by Noureldin, Hoffman, Jameson, COST (European Cooperation in Science and Technology), Rohde, and AASHTO, as well as with multiple-layer linear elastic analysis (MLLEA), which was assumed to be the most accurate of the methods evaluated in this study. In consideration of (a) the results of two-way comparisons with the MLLEA method, (b) applicability to situations in which pavement layer thicknesses are not known, and (c) simplicity, the COST method is recommended for general implementation. To the extent that the data sets analyzed in this research are representative of the Utah DOT pavement network, the COST model should be modified according to the regression results developed in this research to produce more accurate calculations of structural number. Application of temperature corrections to FWD deflections is recommended for structural pavement monitoring.

01471223

12-2300

English

pp 75–85

2012

Transportation Research Record: Journal of the Transportation Research Board

9780309263030

Print

Figures; References; Tables

Condition surveys; Falling weight deflectometers; Flexible pavements; Pavement management systems; Pavement performance; State departments of transportation; Structural health monitoring

Linear elastic analysis

Utah

Highways; Maintenance and Preservation; Pavements; I23: Properties of Road Surfaces; I61: Equipment and Maintenance Methods

PRP, TRIS, TRB, ATRI

Feb 8 2012 5:09PM

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• Cracking and Rutting Performance of Composite Pavements Under Testing with Heavy Vehicle Simulator: Rubberized Hot-Mix Asphalt with Gap-Graded Aggregates over Portland Cement Concrete
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• Impact of Wide-Base Tires on Pavements: Results from Instrumentation Measurements and Modeling Analysis
• Implementation of Network-Level Falling Weight Deflectometer Survey
• Impulse Response Dynamic Stiffness Decay in Aging General Aviation Airfield Pavements
• Model to Estimate Pavement Structural Number at Network Level with Rolling Wheel Deflectometer Data
• Modeling Pavement Conditions of Multilane Roads with Measured Driving Lane Data
• Probe Vehicles Used to Measure Road Ride Quality: Pilot Demonstration
• Procedure for Optimum Pavement Deflection Test Spacings for Network-Level Applications
• Realistic Life-Cycle Cost Analysis with Typical Sequential Patterns of Pavement Treatment Through Association Analysis
• Relating Ride Quality and Structural Adequacy for Pavement Rehabilitation and Management Decisions
• Rutting of Rubberized Gap-Graded and Polymer-Modified Dense-Graded Asphalt Overlays in Composite Pavements
• Sustainability of Perpetual Pavement Designs: Canadian Perspective
• Wavelet-Based Detection of Roughness Progression in Wavebands for Highways in Victoria, Australia