Pavement condition measurement at high velocity using a TSD

An alternative roughness index to IRI for flexible pavements

“…The subgrade layer is assumed to be infinitely thick with a modulus of 50MPa.A mechanistic-empirical approach, proposed byCollop and Cebon (1995), is used to assess the remaining service life of the pavement. The model has been used extensively in the literature(Bilodeau et al 2017;Goodrum and Cebon 2016;Malekjafarian et al 2017) and validated using real measurements byDe-Pont et al (2004). This method calculates pavement damage in the form of permanent deformation and loss of stiffness through fatigue, although there may be other sources of pavement deterioration e.g.…”