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Profiles of Roughness
TRR No. 1260 Pavement Design, Management And Performance, pp.106-111 Road roughness is normally characterized by a summary index that applies over a length of road. Summary index measures are obtained most directly by measuring the longitudinal profile and then applying a mathematical analysis to reduce the profile to the roughness statistic. The moving average smoothing filter can be used to …
Comparison of Pavement Deflection Analysis Methods Using Overlay Design
Four pavement deflection analysis methods, in the form of personal computer software programs, were evaluated and compared from the practitioner's perspective on the bais of calculated overlay design thickness, common characteristics, and performance. These programs are ELSDEF, MODCOMP2, MODULUS4, and ISSEM4. Each program applies the concept of backcalculation, which is the determination of in …
