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    A psychoacoustic based approach to pavement classification

    ProjectPEst-OE/ECI/UI4047/2
    TitleA psychoacoustic based approach to pavement classification
    Publication TypeCommunications in International Conferences
    Year of Publication2015
    AuthorsFreitas, E.F., Cunha C., Lamas J., Mouta S., and Santos J. A.
    Abstract

    The road traffic noise is one of the major contributors to environmental noise, which can cause considerable impact on public health and quality of life of populations. However, road noise raises several questions because, if on one hand is associated with several health problems and welfare, on the other hand its lack affects the detection of the sound sources, and consequently it constitutes a risk to the safety of road users. Thus, it becomes essential to classify road pavements not only based on acoustic indicators but also based on psychoacoustic indicators. Therefore, this work aims to contribute to pavement classification from the point of view of psychoacoustics. An innovative approach leading to important methodological advantages was done by using the Close proximity Method (CPX) method to acquire tyre-road noise. This work presents the acoustic characterization of five different types of pavement by using three acoustic and psychoacoustic indicators (LAmax, LAeq and Loudness) as a function of speed. Each variable was related to the sound intensity and annoyance evaluation responses of twenty six individuals subjected to the acquired noise. As main results, loudness proved to be a more sensitive variable to vehicle speed and type of pavement than LAmax and LAeq and fits better with individual’s responses.

    Conference NameEuronoise
    Pagination2107-2112
    Date Published2015-05-31
    Conference LocationMaastricht
    ISSN2226-5147
    URLhttp://www.conforg.fr/euronoise2015/output_directory/data/articles/000237.pdf
    KeywordsClassification, loudness, Pavement, psychoacoustic
    Citation

    Freitas E., Cunha C., Lamas J., Mouta S., Santos J.Á., A psychoacoustic based approach to pavement classification, Euronoise2015, 31 May - 3 June, Maastricht, Netherlands, 2015.

    RightsopenAccess
    Peer reviewedyes
    Statuspublished
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    About CTAC

    The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.

    Currently CTAC aggregates 25 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more


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