This report provides a summary of the results of the various studies completed in the Partnered Pavement Research Program (PPRC) during the period 2000–2004. In addition, preliminary findings of investigations, initiated but not yet implemented during this period, are included. The results are based on the combined results of analytical developments, laboratory testing of pavement materials, an...

Roadway pavement surface distress information is critical for effective pavement asset management, and subsequently, transportation management agencies at all levels (i.e., federal, state, and local) dedicate a large amount of time and money to routinely evaluate pavement surface distress conditions as the core of their asset management programs. However, currently adopted ground-based evaluati...

This paper presents a methodology for identifying potential pavement maintenance schemes based upon machine survey data. Highways authorities make maintenance decisions based on a number of factors; condition data is a common starting point. However there are currently no universally accepted techniques for ranking sub-sections by condition, based on the comparison of data from multiple conditi...

The primary objective of this study was to assess the pavement structural deterioration based on Non-Destructive Test (NDT) data using an Artificial Neural Networks (ANN) based approach. ANN-based prediction models were developed for rapid determination of flexible airfield pavement layer stiffnesses from actual NDT deflection data collected in the field in real time. For training the ANN model...

Evaluating existing flexible pavement condition is a pre-requisite to choose improvement technique that has to be adopted to enhance its quality. To evaluate existing pavements, non-destructive testing methods are desirable. Benkelman Beam and 5th Wheel Bump Integrator are used to conduct non-destructive tests like deflection and roughness surveys on the existing pavement of 4 lane divided carr...

1.0 Introduction ..........................................................................................................................................................2 2.0 Relevant Topics in Sound and Acoustics ............................................................................................................... 2.1 Sound...............................................................

A pavement condition sensor aims to estimate the surface grip, and therefore must detect presence of water, snow, slush or like on pavement. The leading technology for such a is near infrared diffuse reflectance spectroscopy using wavelength range around water absorption peak. In this paper we present based said technique that uses an electro-optic dual optical frequency comb generator as sourc...