Valuation of Green Walls and Green Roofs as Soundscape Measures: Including Monetised Amenity Values Together with Noise-attenuation Values in a Cost-benefit Analysis of a Green Wall Affecting Courtyards
Open Access
- 23 October 2012
- journal article
- research article
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 9 (11), 3770-3788
- https://doi.org/10.3390/ijerph9113770
Abstract
Economic unit values of soundscape/acoustic effects have been based on changes in the number of annoyed persons or on decibel changes. The normal procedure has been the application of these unit values to noise-attenuation measures affecting the noisier façade of a dwelling. Novel modular vegetation-based soundscape measures, so-called green walls, might be relevant for both noisy and quieter areas. Moreover, their benefits will comprise noise attenuation as well as non-acoustic amenity effects. One challenge is to integrate the results of some decades of non-acoustic research on the amenity value of urban greenery into design of the urban sound environment, and incorporate these non-acoustic properties in the overall economic assessment of noise control and overall sound environment improvement measures. Monetised unit values for green walls have been included in two alternative cases, or demonstration projects, of covering the entrances to blocks of flats with a green wall. Since these measures improve the noise environment on the quiet side of the dwellings and courtyards, not the most exposed façade, adjustment factors to the nominal quiet side decibel reductions to arrive at an estimate of the equivalent overall acoustic improvement have been applied. A cost-benefit analysis of the green wall case indicates that this measure is economically promising, when valuing the noise attenuation in the quieter area and adding the amenity/aesthetic value of the green wall.Keywords
This publication has 35 references indexed in Scilit:
- The extended Fourier pseudospectral time-domain method for atmospheric sound propagationThe Journal of the Acoustical Society of America, 2010
- Attractive "Quiet" Courtyards: A Potential Modifier of Urban Residents' Responses to Road Traffic Noise?International Journal of Environmental Research and Public Health, 2010
- What's up? Examining the awareness of green roofs in suburbiaJournal of Soil and Water Conservation, 2009
- Monetary valuation of aircraft noise: A hedonic analysis around Amsterdam airportEcological Economics, 2009
- Property Prices and Exposure to Multiple Noise Sources: Hedonic Regression with Road and Railway NoiseEnvironmental and Resource Economics, 2009
- Provision of urban green spaces: Some insights from economicsLandscape Research, 2008
- Effects of road traffic noise and the benefit of access to quietnessJournal of Sound and Vibration, 2006
- The temporal structure of urban soundscapesJournal of Sound and Vibration, 2005
- Paying for Quietness: The Impact of Noise on Geneva RentsUrban Studies, 2005
- Primary, Secondary, and Meta-Analysis of ResearchEducational Researcher, 1976