Backcalculation of Layer Moduli of LTPP General Pavement Study (GPS) Sites
Primary Topic: Flexible Pavement
Description: This report details the activities and process by which the re-backcalculation of LTPP General Pavement Study (GPS) test sections were completed. These activities were completed under FHWA Contract DTFH61-95-C-00029 as part of Task B - "Backcalculate Resilient Modulus". This report details how the backcalculation program was selected, lists the GPS sections re-backcalculated, presents the results of the revised backcalculations and discusses the problem sections that were encountered. The report is also accompanied by a data base that contains results from the original SHRP backcalculation process and those sections that were re-backcalculated.
FHWA Publication Number: FHWA-RD-97-086
Publication Year: 1997