A Pavement Condition Rating System And Its Use

Emphasizing sound, cost-effective management rather than emergency repairs, this comprehensive volume offers practical guidelines on evaluating and managing pavements for airports, roads, and parking lots. The author focuses on the implementation and maintenance of successful management strategies for both network and project levels, with repair techniques also described . Detailed chapters: 1) outline step-by-step procedures for project and network level pavement management 2) illustrate effective cost analysis and budget planning for pavement maintenance 3) guide the reader in the selection and use of non-destructive deflection, roughness measurement, and friction measurement equipment 4) present state-of-the-art pavement rehabilitation and condition prediction techniques 5) demonstrates the Pavement Condition Index (PCI) procedure for airfields and surfaced and unsurfaced roads. Extensive appendices serve as a field manual for identifying all types of pavement distress and their causes, and hundred of photographs facilitate accurate pavement evaluation. Civil and pavement engineers will find complete information on pavement inspection, evaluation, and management in this indispensable reference.

This study was conducted to review the Pavement Condition Rating (PCR) methodology currently used by the Ohio DOT. The results of the literature search conducted in this connection are described ih thereport. An analysis of the PCR data collected by the ODOT in the past 11 years (1985-95) indicated that there were some distresses which were rarely observed in the past. The reasons for such occurrences and the use of this information to enhance the current system are discussed in the report. Statistical method known as: Classification Tree, was used to analyze the PCR data for (Ir)a ting the pavements, and (2) assigning the maintenance and/or rehabilitation (M & R) actions, when the distresses of the individual pavements were known. The results of this analysis indicated that due to non-linear nature of PCR, this model is able to assess the PCR better than the current linear model of estimating the PCR. An expert opinion survey was designed and conducted to collect data for developing new weights of pavement distresses using a combination of statistical methods: "Classification Tree" and "Proportional Odds Model". The PCR values obtained from new and old distress weights were compared and the results of these comparisons are discussed in the report. Statistical analysis of the PCR data for the year 1996 was performed to determine a suitable sample size which can be used to survey the network for collecting the PCR data of the network for Pavement Management purposes and selecting the pavements for inclusion in the annual M & R program of ODOT. This report contains recommendations for revising the list of distresses of each pavement type, developing a non-linear model to assess the pavement condition and M & R needs of a given pavement, a suitable sampling procedure for surveying the network and revising the definitions of some distresses of each pavement type.

Rating of highway pavement surface condition is used by highway system authorities as a measure of the ability of the pavement to continue to provide required service to the public. Ratings are based on riding quality and distress manifestations which currently apply only to those roads surfaced with asphaltic concrete and Portland-cement concrete. There is also a network of bituminous surface-treated roads for smaller and more remote population centres which has, to date, had no scheme designed and developed specifically to address their performance pattern. This manual presents a pavement surface condition rating scheme for such roads, based on the same interrelated measures used on the highway system. The manual describes the scheme, and gives a procedure for evaluation, defines riding quality, and details such distress manifestations as surface defects and deformation and cracking, shoulder distress, and maintenance treatments.

"This new ASTM publication presents the latest information on the practical and developmental aspects of pavement surface evaluation procedures and technologies, including their reliability and relevancy. Seven peer-reviewed papers cover: * Pavement surface characteristics measurement procedures and equipment * Approaches to enhance the reliability and accuracy of pavement surface evaluation systems * Approaches to harmonization between different measurement devices for specific pavement surface condition indicators * Assessment of current pavement condition indicators and their relevancy level for use in asset management * Assessment of factors influencing the interaction of tire/pavement surface characteristics * Assessment of automated distress survey systems * Evaluation of new/promising technologies for pavement condition surveys."--Publisher's website.