The Mechanistic-Empirical Pavement Design Guide addresses climate effects on pavement design in a comprehensive way, which allows for investigating the effect of climate on pavement performance. However, it requires detailed climate inputs, which might not be readily available for most of the state departments of transportation. The AASHTOWare Pavement Mechanistic-Empirical Design (PMED) version 2.3 (v2.3) climate database encompasses 12 weather stations in the state of Tennessee, which does not satisfactorily represent all climatic regions in the state. The terrain in Tennessee varies from flat in the west to mountainous in the east. To evaluate the effectiveness of the updated AASHTOWare PMED v2.3 climate data input, this study analyses the performance of selected pavements in the state of Tennessee using the Modern-Era Retrospective Analysis for Research and Applications (MERRA) and the AASHTOWare PMED v2.3 databases as sources of PMED climate data inputs. A comparative analysis of the two climate data sources is conducted using eight long-term pavement performance (LTPP) sites in the state of Tennessee. The study revealed that MERRA as a climate data source for the state of Tennessee offers better geographic coverage, and therefore provides more precise distress predictions than the AASHTOWare PMED v2.3 climate database.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Comparative Analysis between Modern-Era Retrospective Analysis for Research and Applications and Updated Mechanistic-Empirical Pavement Design Guide Climate Database in the State of Tennessee


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:
    Ziedan, Abubakr (Autor:in) / Onyango, Mbakisya (Autor:in) / Wu, Weidong (Autor:in) / Udeh, Sampson (Autor:in) / Owino, Joseph (Autor:in) / Fomunung, Ignatius (Autor:in)


    Erscheinungsdatum :

    2019-05-05




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Database Support for the New Mechanistic-Empirical Pavement Design Guide

    Wang, Kelvin C. P. / Li, Qiang / Hall, Kevin D. et al. | Transportation Research Record | 2008



    Local calibration of the fatigue cracking models in the Mechanistic-Empirical Pavement Design Guide for Tennessee

    Gong, Hongren / Huang, Baoshan / Shu, Xiang et al. | British Library Online Contents | 2017


    Calibration of Flexible Pavement in Mechanistic–Empirical Pavement Design Guide for Washington State

    Li, Jianhua / Pierce, Linda M. / Uhlmeyer, Jeff | Transportation Research Record | 2009