Green Roof Valuation: A Probabilistic Economic Analysis of Environmental Benefits

Clark, Corrie; Adriaens, Peter; Talbot, F. Brian

doi:10.1021/es0706652

Cited by 231 publications

(159 citation statements)

References 22 publications

(27 reference statements)

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“…In addition, there are many advantages for the environment, ranging from increasing the thermal insulation of the building envelope and reduction of urban heat island effects [127][128][129][130][131][132][133][134][135], acting as a buffer for storm water [135][136][137][138][139][140], improving air quality and increased carbon-dioxide uptake [141][142][143], increasing urban biodiversity [144][145][146][147], providing a visually pleasant environment [148], to even crop harvesting. Also from an economical point of view, building greening seems interesting [149][150][151][152].…”

Section: Ground Treatmentmentioning

confidence: 99%

Using natural means to reduce surface transport noise during propagation outdoors

et al. 2015

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a b s t r a c tThis paper reviews ways of reducing surface transport noise by natural means. The noise abatement solutions of interest can be easily (visually) incorporated in the landscape or help with greening the (sub)urban environment. They include vegetated surfaces (applied to faces or tops of noise walls and on buildings' façades and roofs), caged piles of stones (gabions), vegetation belts (tree belts, shrub zones and hedges), earth berms and various ways of exploiting ground-surface-related effects. The ideas presented in this overview have been tested in the laboratory and/or numerically evaluated in order to assess or enhance the noise abatement they could provide. Some in-situ experiments are discussed as well. When well designed, such natural devices have the potential to abate surface transport noise, possibly by complementing and sometimes improving common (non-natural) noise reducing devices or measures. Their applicability strongly depends on the available space reserved for the noise abatement and the receiver position.

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Section: Ground Treatmentmentioning

confidence: 99%

Using natural means to reduce surface transport noise during propagation outdoors

et al. 2015

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“…These measures have many ecological advantages too, ranging from increasing the thermal insulation of the building envelope and reduction of urban heat island effects [1]- [9], acting as a buffer for storm water [9]- [14], improving air quality and increased carbon dioxide uptake [15]- [17], increasing urban biodiversity [18]- [22], providing a visually pleasant environment [23], to even crop harvesting. In addition, also from an economical point of view, building greening seem interesting [24]- [27]. Recently, the noise reducing possibilities of such building envelope greening measures have been identified [28][29] [30][31] [32].…”

Section: Introductionmentioning

confidence: 99%

The potential of building envelope greening to achieve quietness

Renterghem

Hornikx

Forssén

et al. 2013

Building and Environment

158

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Reduction of noise is one of the multiple benefits of building envelope greening measures. The potential of wall vegetation systems, green roofs, vegetated low screens at roof edges, and also combinations of such treatments, have been studied by means of combining 2D and 3D full-wave numerical methodologies. This study is concerned with road traffic noise propagation towards the traffic-free sides of inner-city buildings (courtyards). Preserving quietness at such locations has been shown before to be beneficial for the health and well-being of citizens. The results in this study show that green roofs have the highest potential to enhance quietness in courtyards. Favourable combinations of roof shape and green roofs have been identified. Vegetated façades are most efficient when applied to narrow city canyons with otherwise acoustically hard façade materials. Greening of the upper storey's in the street and (full) façades in the courtyard itself is most efficient to achieve noise reduction. Low-height roof screens were shown to be effective when multiple screens are placed, but only on conditions that their faces are absorbing. The combination of different greening measures results in a lower combined effect than when the separate effects would have been linearly added. The combination of green roofs or wall vegetation with roof screens seems most interesting.Keywords urban sound propagation, green roofs, green walls, noise reduction, numerical simulations, road traffic noise 3 1.IntroductionThe use of vegetation has become an essential aspect in urban planning nowadays. In densely built-up city centers, building envelope greening is often the only possibility to meet this demand. These measures have many ecological advantages too, ranging from increasing the thermal insulation of the building envelope and reduction of urban heat island effects [1]- [9], acting as a buffer for storm water [9]- [14], improving air quality and increased carbon dioxide uptake [15]- [17], increasing urban biodiversity [18]- [22], providing a visually pleasant environment [23], to even crop harvesting. In addition, also from an economical point of view, building greening seem interesting [24]- [27]. Recently, the noise reducing possibilities of such building envelope greening measures have been identified [28][29] [30][31] [32].The presence of mainly acoustically rigid materials in cities (streets, bricks, concrete, glazings, etc.) leads to a strong amplification of the emitted sound from road traffic noise, and large sound pressure levels are observed in city canyons. The noise problem has indeed become one of the major environmental challenges in the urban environment. The WHO report "burden of disease by environmental noise" [33] quantified the many health-related effects by long-term exposure to environmental noise. The positive influence of quiet urban areas, as a possible mitigating measure, has been shown before [34][35] [36] and has become part of European noise policy [37]. As a result, the sound environment in poten...

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“…Green roofs have been proven to reduce stormwater runoff and help in increase the energy efficiency of buildings, with absorption of close to 70% of the rainfall on buildings, also helping to reduce ground level ozone in urban areas (Clark, Adriaens, & Talbot, 2008 Other studies have focused on specific types of GI. For instance Shammaa, Zhuet et al worked to retrofit and enhance the existing dry detention ponds to remove the total suspended solids (TSS) from stormwater.…”

Section: Green Infrastructure (Gi)mentioning

confidence: 99%

Effect of slope and paver characteristics on performance of permeable pavement GI.

Ehsaei¹

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DEDICATIONI dedicate my dissertation to my family and many friends. A special feeling of gratitude to my loving parents, whose words of encouragement and push got me this far. I also dedicate this dissertation to my wife, who stood by me, and I will always appreciate all her support throughout the process. This dissertation is an experimental study based on the findings of two Green Infrastructure (GI) stormwater control measures (SCMs) in Louisville, KY, which focused on the effects of the physical environment on the performance of GI. The GI installed in Louisville are suffering from extensive and rapid surface clogging and in order to optimize current and future GI, an understanding of the factors affecting the performance of the system is required. The study used the current literature to determine the surrounding factors and those of the permeable surface that had not been investigated enough, and used several configurations of GI to determine the effects of these variables on the surface clogging. iv ACKNOWLEDGMENTSThe module used to test these variables was a wooden flume, specifically designed and constructed from plywood so that the variables of the experiment could be incorporated in testing. The flume simulates a permeable pavement system with storage gallery and a bedding layer, and is paved with three different interlocking concrete pavements that provide gaps of three different sizes. The flume's longitudinal slope can be adjusted, and the permeable joint material can be included. The performance of the vi flume was measured using 7 time domain reflectometer (TDRs) instruments, manufactured by Campbell Scientific, which are located inside the storage gallery.After conducting 21 experiments with various configurations, the data was analyzed to reveal meaningful information. As expected, the experiments with permeable joint material show a clear separation for the sediment deposited on the surface, where empty gaps resulted in inorganics being deposited on the up gradient and organics on the down gradient.The Analysis of Variance (ANOVA) of the progression of clogging and progression of infiltration edge on the permeable surface showed that the increase of gap size from 6 mm to 9 mm did not result in a significant change, but the change to 12 mm gaps resulted in a significantly different rate for the progression of the first rate. The presence of #8 aggregate in the gaps resulted in significant changes in both rates and finally the change of slope from 1% to 3% created a significant change in the rate at which surface clogging progressed.vii

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Green Roof Valuation: A Probabilistic Economic Analysis of Environmental Benefits

Cited by 231 publications

References 22 publications

Using natural means to reduce surface transport noise during propagation outdoors

Using natural means to reduce surface transport noise during propagation outdoors

The potential of building envelope greening to achieve quietness

Effect of slope and paver characteristics on performance of permeable pavement GI.

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