Abstract: Exposure to excessive (road) traffic noise can result in sleep deprivation, increased stress, and even heart diseases. Accordingly, accurately determining the acoustic quality of different pavement types is crucial for implementing noise-reducing measures such as low-noise pavements. In this regard, the ISO 11819-1:1997 standard, which describes the Statistical Pass-By method for assessing the acoustic performance of road pavements, is currently under revision. The proposed changes include combining two vehicles' categories, currently defined as dual-axles (HD) and multiple-axles (HM) heavy vehicles, into a single category: heavy vehicles (H), by adding 2.7 dB to the maximum sound pressure level (LAmax) of HD vehicles. Additionally, a new method is presented to define the noise versus speed relation of this new caterory. In this work, these changes were evaluated based on a large dataset collected by the authors over 8 months, with an abundance of heavy vehicles (2820) while also accounting for passenger cars (2896). The average difference in LAmax between HD and HM vehicles ranged between 2.1 – 2.3 dB, meaning that the draft standard may overestimate this difference. Furthermore, while the draft standard prescribes a coefficient of 25 for the LAmax variation with speed for the road surfaces here investigated, we observed a lower speed dependency, with a coefficient of 20.5 on average. Lastly, we proposed and investigated the introduction of a new vehicle category containing delivery vans. It appears that vans can form a vehicle category with consistent noise behaviour and could thereby aid in describing the pavements' acoustic performance, ultimately contributing to reducing the measurement duration. The noise produced by vans presents a similar spectra shape and coincident noise levels as passager cars at 1000 to 2000 Hz third-octave bands.


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    Titel :

    Assessment of the proposed changes regarding heavy vehicles in the statistical pass-by draft standard ISO/DIS 11819-1 (2021)


    Beteiligte:
    Geluykens, Michiel (Autor:in) / Barros, Ablenya (Autor:in) / Goubert, Luc (Autor:in) / Vuye, Cedric (Autor:in)

    Erscheinungsdatum :

    2022-01-01


    Anmerkungen:

    Proceedings of the Euroregio / BNAM 2022 Conference, 9-11 May, 2022, Aalborg, Denmark ; 978-87-995400-5-1


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    629