Non-contact deflection measurement at high speed

S Rasmussen, JA Krarup, G Hildebrand

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific


    Traditional stationary or low speed deflection measurements become problematic on roads with high traffic densities. Traffic safety is decreased when survey vehicles like low speed deflectographs or stationary falling weight devices carry out measurements on highway networks. This paper describes how the Greenwood High Speed Deflectograph applies Laser Doppler Technology to provide information about pavement response to traffic load. The information obtained is the deflection velocity, the vertical velocity of the pavement surface due to a wheel load. The results from the tests show that the High Speed Deflectograph provides repeatable data comparable to similar information obtained with the Falling Weight Deftectometer.
    Original languageUndefined/Unknown
    Title of host publicationProceedings of the 6th international conference on the bearing capacity of raods and airfields, held in Lisbon, Portugal on June 24-26 2002
    EditorsAG Correia, FEF Branco
    Place of PublicationLisse
    PublisherSwets & Zeitlinger
    Number of pages8
    ISBN (Print)90-5809-396-4
    Publication statusPublished - 2002

    Publication series

    PublisherSwets & Zeitlinger BV


    • Conf.proc. > 3 pag

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