Pavement design methods : a literature survey into linear-elastic theory and condition prediction models

Presents the results of a literature survey into design methods for asphaltic pavements, discussing: 1) the applicability of the Linear Elastic Multilayer Theory (LEMT) in the calculation of pavement stresses and strains; and 2) condition prediction models for pavements, emphasizing on cracking and bearing capacity. Written with a view to Dutch pavement design circumstances. Mechanistic design procedures are divided into response models and condition prediction models. The predictions of the LEMT, which is used as the response model in Dutch design methods, are compared to various measurements. After a general review of condition prediction modelling, some models for cracking prediction are reviewed: visual condition index model; power model; sigmoidal model; lognormal probability of survival; Weibull probability of failure; World Bank models for cracking initiation and progression. Two empirical models for bearing capacity are studied: one predicting development of the equivalent layer thickness, and one directly predicting deflection increase.