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- W2969411947 abstract "AbstractThe current state-of-the-practice for pavement design only accounts for traffic load applicationwithout considering the speed and highway geometry as design criterion. This paper investigates theeffect of geometric design elements including horizontal curves, vertical gradients and U-turns onpavement performance at different traffic characteristics and pavement structures. The effects oftheses parameters on Pavement Condition Index (PCI) and International Roughness Index (IRI) wereinvestigated using simple, multiple, and stepwise linear regression to develop prediction models forspecial geometric sections. In this study, field data were collected for surface pavement distresses, forsections with special geometric features, varied traffic characteristics, and different pavementstructures. Comparison between the pavement conditions of sections with special geometric featuresand those of their reference straight road sections was performed. The results showed significantdifference between PCI of special geometric sections and their reference sections. So, the geometryfactor needs to be considered in structural design of pavements. This paper also showed that speed isone of the most important factors influencing pavement deterioration especially at upgrade sectionsand horizontal curves. Prediction models were built to forecast the pavement conditions for sectionswith vertical gradients and horizontal curves." @default.
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- W2969411947 date "2012-05-01" @default.
- W2969411947 modified "2023-09-23" @default.
- W2969411947 title "Predication of Pavement Performance for Highway Sections with Special Geometric Features" @default.
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- W2969411947 doi "https://doi.org/10.21608/iccae.2012.44378" @default.
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