| Title | Simplified Techniques for Evaluation and Interpretation of Pavement Deflections for Network-Level Analysis |
|---|---|
| Record ID | 66090 |
| Personal Name Creator |
Carvalho, R.; Stubstad, R.; Briggs, R.; Selezneva, O.; Mustafa, Endri; Ramachandran, A. |
| Personal Name Contributor |
Wiser, Larry |
| Corporate Creator | United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development |
| Corporate Contributor |
Applied Research Associates, Inc.; Turner-Fairbank Highway Research Center |
| Publisher | United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development |
| Publication Date | 20121201 |
| Language | English |
| Abstract | The objective of this study was to develop an approach for incorporating techniques used to interpret and evaluate deflection data for network-level pavement management system (PMS) applications. The first part of this research focused on identifying and evaluating existing techniques by seeking out those that were simple, reliable, and easy to incorporate into current PMS practices, as well as those that produced consistent results. The second part of the research detailed the development of guidelines for the application of recommended techniques, along with procedures for determining optimum falling weight deflectometer (FWD) test spacing and data collection frequency. While there are many viable techniques available for evaluating the structural capacity of pavements that use FWD for project-level analysis, many of these techniques are time consuming and require an experienced analyst. As a result, using pavement deflection testing for network-level analysis has been limited to date. The findings presented in this report suggest that it is possible and, in fact, advantageous to define simplified techniques for the evaluation and interpretation of pavement deflections for network-level analysis. |
| Rosap ID | dot:41682 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/41682 |
| TRT Terms | Pavement performance; Rehabilitation; Maintenance; Deflection tests; Flexible pavements; Rigid pavements |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1469982 |
| Contract Number | DTFH61-02-C-00138 |
| Report Number | FHWA-HRT-12-023 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/66000/66000/66090/FHWA-HRT-12-023.pdf |
| Alternative URL | https://www.fhwa.dot.gov/publications/research/infrastructure/pavements/ltpp/12023/ |
| Format | |
| Database | NTL Digital Repository |