With the development and application of highway-speed nondestructive testing (NDT) devices, a reliable method to evaluate current level deterioration pavements from measured results is necessary provide comprehensive timely maintenance rehabilitation decisions for pavements. The objective this study conditions flexible their deflection profiles under moving loads. due primarily growth microcrac...

Effective highway maintenance depends on several activities, including the understanding of current and the prediction of future pavement conditions and deciding how to best allocate limited resources for maintenance operations. In this paper, a dynamic micro-level simulation model of highway deterioration and renewal processes is presented. This model is calibrated with data from eight road se...

The World Bank USA Lead Highway Engineer Henry Godfrey Rupiny Kerali This paper describes the development of a stochastic model for the strategic assessment of road maintenance funding and policy decisions. The algorithms used for simulating pavement deterioration utilise Markov processes, resulting in a transition probability matrix that defines defect progression as opposed to the more famili...

The new AASHTO Mechanistic-Empirical Pavement Design Guide (MEPDG) provides pavement analysis and performance predictions for various what-if scenarios. MEPDG performance predictions for anticipated climatic and traffic conditions will depend on the values of the input parameters that characterize pavement materials, layers, design features, and condition. A comprehensive global sensitivity ana...

As the Framework Act on Sustainable Infrastructure Management has recently been enacted in Korea, it become mandatory to establish a medium-and long-term plan for managing social infrastructure and evaluating feasibility of maintenance projects. However, road agencies are experiencing problems due lack deterioration models which essential conducting life cycle cost analysis. Thus, this study de...

Municipal engineers are faced with the difficult task of managing the urban roadway network. Maintaining this significantly large and expensive infrastructure requires effective planning and design. However, the majority of currently available design tools were developed originally for analyzing highway pavements. Little attention has been given in the past to urban road related issues. The env...