Sökning: "Road Traffic Noise"

Visar resultat 1 - 5 av 31 avhandlingar innehållade orden Road Traffic Noise.

  1. 1. Background road traffic noise synthesis

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Georgios Zachos; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; background traffic noise synthesis; auralisation; urban sound planning;

    Sammanfattning : As urban planning evolves along with societal life, new requirements that should be met are rising. One of those, is the inclusion of acoustic quality in urban environments, before, during, or after a planning process. To address this for a yet to be built area, metrics are needed that try to quantify acoustic quality. LÄS MER

  2. 2. Road traffic noise reduction by multiple scattering and absorption mechanisms

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Bart van der Aa; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Outdoor sound propagation; Sonic crystals; Road traffic noise; FDTD; Noise barriers; MST; Porous materials; 2.5D MST; Graded index sonic crystals;

    Sammanfattning : Millions of people in Europe, and even more on a global scale, are affected by environ- mental noise. Traffic related noise is estimated to cause a yearly loss of approximately one million healthy life years in Western Europe, which is mostly related to road traffic noise. LÄS MER

  3. 3. Noise in the school environment Memory and Annoyance

    Detta är en avhandling från Stockholm : Byggvetenskap

    Författare :Eva Boman; Högskolan i Gävle.; KTH.; [2004]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Noise; meaningful irrelevant speech; road traffic noise; memory; age group; school environment; pupils; teachers;

    Sammanfattning : Objectives.The general objectives of this dissertationwere to examine the effects of acute exposure to meaningfulirrelevant speech and road traffic noise on memory performance,and to explore annoyance responses to noise exposure in theschool environment for pupils and teachers in different agegroups.Methods. LÄS MER

  4. 4. Contact stiffness in tyre/road noise modelling and speed dependencies of tyre/road noise generation mechanisms

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Julia Winroth; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tyre road noise; Air-pumping; Tyre road contact stiffness; Speed exponent analysis; Tyre road contact modelling;

    Sammanfattning : Tools for simulating tyre/road noise are highly valuable in the efforts to limit the negative consequences of road traffic noise.A numerical tyre/road noise simulation tool was in this study used to investigate how the contact stiffness parameter affects the predicted tyre/road noise. LÄS MER

  5. 5. AURALIZATION, PERCEPTION AND DETECTION OF TYRE–ROAD NOISE

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Alice Hoffmann; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Perception; Psychoacoustics; Rolling Noise; Traffic Detection; Reaction Time; Auralization; Tyre Road Noise;

    Sammanfattning : Due to improvements in combustion engines and electric engines for cars, tyre noise has become the prominent noise source at low and medium speeds. Models exist that simulate the noise produced by a rolling tyre, as do models that auralize specific traffic situations from a basic data set. LÄS MER