This paper investigates errors associated with weigh-in-motion (WIM) measurements using data from 15 Department of the Environment, Transport and the Regions (DETR) WIM systems operated on motorways and trunk roads in England. Three sources of error have been identified: calibration errors, random sensor error and dynamic load effect. The 5-95 percentile range and the standard deviation of the calibration errors were found to be 30 and 11 per cent respectively. The average value of the random sensor error plus dynamic load effect was found to be 11 per cent. The effects of these errors on pavement design traffic and subsequent pavement thickness design have been investigated. It is found that, using a fourth power law, the effect of sensor/dynamic and calibration errors is likely to overpredict the traffic by typically between 15 and 20 per cent, which would result in a 5-15 mm overdesign of pavement thickness for typical flexible pavement structures.


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    Titel :

    Effects of weigh-in-motion errors on pavement thickness design


    Beteiligte:
    Collop, A.C. (Autor:in) / Al Hakim, B. (Autor:in) / Thom, N.H. (Autor:in)


    Erscheinungsdatum :

    2002


    Format / Umfang :

    11 Seiten, 19 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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