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Acoustic, Visual and Spatial Indicators for the Description of the Soundscape of Waterfront Areas with and without Road Traffic Flow

View Article: PubMed Central - PubMed

ABSTRACT

High flows of road traffic noise in urban agglomerations can negatively affect the livability of squares and parks located at the neighborhood, district and city levels, therefore pushing anyone who wants to enjoy calmer, quieter areas to move to non-urban parks. Due to the distances between these areas, it is not possible to go as regularly as would be necessary to satisfy any needs. Even if cities are densely populated, the presence of a sea or riverfront offers the possibility of large restorative places, or at least with potential features for being the natural core of an urban nucleus after a renewal intervention. This study evaluates the soundscape of the Naples waterfront, presenting an overview of the most significant visual, acoustic and spatial factors related to the pedestrian areas, as well as areas open to road traffic and others where the road traffic is limited. The factors were chosen with feature selection methods and artificial neural networks. The results show how certain factors, such as the perimeter between the water and promenade, the visibility of the sea or the density of green areas, can affect the perception of the soundscape quality in the areas with road traffic. In the pedestrian areas, acoustic factors, such as loudness or the A-weighted sound level exceeded for 10% of the measurement duration (LA10), influence the perceived quality of the soundscape.

No MeSH data available.


Percentage of subjects that recognized a certain sound source as the predominant one within the three types of areas a priori classified as pedestrian areas, open to road traffic areas and limited traffic areas.
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ijerph-13-00934-f004: Percentage of subjects that recognized a certain sound source as the predominant one within the three types of areas a priori classified as pedestrian areas, open to road traffic areas and limited traffic areas.

Mentions: The nature of the perceived sound sources plays an important role on the positive or negative appraisal of the soundscape. To study the responses on the soundscape quality, the sound sources heard, and recognized as predominant, were analysed. Figure 3 and Figure 4 report the percentage of people that perceived a certain sound source in each type of area and the percentage of the most perceived sound sources, respectively.


Acoustic, Visual and Spatial Indicators for the Description of the Soundscape of Waterfront Areas with and without Road Traffic Flow
Percentage of subjects that recognized a certain sound source as the predominant one within the three types of areas a priori classified as pedestrian areas, open to road traffic areas and limited traffic areas.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5036766&req=5

ijerph-13-00934-f004: Percentage of subjects that recognized a certain sound source as the predominant one within the three types of areas a priori classified as pedestrian areas, open to road traffic areas and limited traffic areas.
Mentions: The nature of the perceived sound sources plays an important role on the positive or negative appraisal of the soundscape. To study the responses on the soundscape quality, the sound sources heard, and recognized as predominant, were analysed. Figure 3 and Figure 4 report the percentage of people that perceived a certain sound source in each type of area and the percentage of the most perceived sound sources, respectively.

View Article: PubMed Central - PubMed

ABSTRACT

High flows of road traffic noise in urban agglomerations can negatively affect the livability of squares and parks located at the neighborhood, district and city levels, therefore pushing anyone who wants to enjoy calmer, quieter areas to move to non-urban parks. Due to the distances between these areas, it is not possible to go as regularly as would be necessary to satisfy any needs. Even if cities are densely populated, the presence of a sea or riverfront offers the possibility of large restorative places, or at least with potential features for being the natural core of an urban nucleus after a renewal intervention. This study evaluates the soundscape of the Naples waterfront, presenting an overview of the most significant visual, acoustic and spatial factors related to the pedestrian areas, as well as areas open to road traffic and others where the road traffic is limited. The factors were chosen with feature selection methods and artificial neural networks. The results show how certain factors, such as the perimeter between the water and promenade, the visibility of the sea or the density of green areas, can affect the perception of the soundscape quality in the areas with road traffic. In the pedestrian areas, acoustic factors, such as loudness or the A-weighted sound level exceeded for 10% of the measurement duration (LA10), influence the perceived quality of the soundscape.

No MeSH data available.