Sökning: "CNOSSOS-EU"

Hittade 3 uppsatser innehållade ordet CNOSSOS-EU.

  1. 1. Road traffic noise simulations based on 3D city models

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Wenjing Liu; [2023]
    Nyckelord :3D city model; 3CIM; CNOSSOS-EU; noise simulation; city noise evaluation; data tailor; FME; SoundPLAN; Geomatics; Earth and Environmental Sciences;

    Sammanfattning : Urban development and densification cause noise problems that can have a negative impact on human health. In 2002, the European Union (EU) stated the European Noise Directive (END) with the purpose to evaluate environmental noise levels (including the sources road, railway, and air traffic) in the member states every 5 years. LÄS MER

  3. 2. Mapping Noise Pollution with Open-source GIS

    Master-uppsats, Högskolan i Gävle/Samhällsbyggnad

    Författare :Faustina Lina Yeboah; [2021]
    Nyckelord :Road traffic noise; CNOSSOS-EU; noise exposure; Lday; Levening; Lnight; Lden;

    Sammanfattning : In a time when urban areas continue to expand, environmental noise pollution especially from road traffic remains a big challenge. This study was aimed at using open-source GIS tools to predict road traffic noise pollution using the mid-sized city of Gävle as a case study. LÄS MER

  4. 3. The Nordic Prediction Method For Railway Traffic Noise : Improvements of the current corrections forrailway bridges, switches and crossings

    Master-uppsats, KTH/Byggnadsmaterial

    Författare :KRISTÍN HELGADÓTTIR; RAGNHEIÐUR BJÖRNSDÓTTIR; [2019]
    Nyckelord :The Nordic Prediction Method; Railway traffic; Railway noise; Noise measurements; Acoustics; Steel bridges; Concrete bridges; Switches; Railway crossings; Correction factor; Correction for track condition;

    Sammanfattning : Railway noise is a very important and growing health hazard in today´s society.Railway systems pass through towns and cities and create noise. When trainsride through or over railway bridges, switches and crossings the noise increasessubstantially, causing great annoyance to the residents in the area. LÄS MER