Landscape depressions can create silent zones in noise polluted parks

Autor: Pieter Thomas, Timothy Van Renterghem, Dick Botteldooren
Přispěvatelé: Dare, Tyler, Bolton, Stuart, Davies, Patricia, Xue, Yutong ‘Tony’, Ebbitt, Gordon
Rok vydání: 2021
Předmět:
Zdroj: Proceedings of the 50th International Congress and Exposition of Noise Control Engineering (Inter-Noise 2021)
ISSN: 0736-2935
Popis: Excessive road traffic noise exposure in (sub)urban parks hinders its restorative function and will negatively impact the number of visitors. Especially in such green environments, noise abatements by natural means, well integrated in the landscape, are the most desired solutions. Although dense vegetation bordering the park or raised berms could come first in mind, local landscape depressions are typically underused. In this work, a case-study of a small suburban park, squeezed in between two major arterial roads, is analyzed. The spatially dependent road traffic noise exposure in the park is assessed in detail by mobile sound pressure level measurements. Local reductions of up to 6-7 dBA are found at landscape depressions of only a few meters deep. It can therefore be concluded that this is an efficient measure and should be added to the environmental noise control toolbox for noise polluted parks.
Databáze: OpenAIRE