Review on the impact of urban geometry and pedestrian level greening on outdoor thermal comfort

Jamei, Elmira; Rajagopalan, Priyadarsini; Seyedmahmoudian, Mehdi; Jamei, Yashar

doi:10.1016/j.rser.2015.10.104

Cited by 405 publications

(198 citation statements)

References 185 publications

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“…Spronken and Oke in their study in Vancouver and Sacramento emphasized that, besides the percentage of trees in a park, irrigation requirements and aridity of the place, the vicinity is an important factor determining the cooling extension (Spronken-Smith and Oke 1998). The importance of the adjacent urban fabric around green spaces has been mentioned in different studies (Jamei et al 2016;Oke 1987). One of the effects of the surrounding area on GCI is the shadow it casts.…”

Section: The Adjacent Urban Fabric (Auf)mentioning

confidence: 99%

Heat mitigation by greening the cities, a review study

Venhari¹,

Tenpierik²,

Hakak³

2017

Environ. Earth Ecol.

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In the past decades, many studies have proposed urban greening as a method to mitigate the rising temperatures in cities and urban heat islands. The cooling effect of urban green spaces can be divided into two components; cooling intensity and cooling extension. These two components are affected by different factors. This paper provides a review of research on the impact of urban greening on temperature and on the parameters that have an effect on that. Based on this review, two categories that have an effect on cooling intensity and cooling extension were identified: internal factors and external factors. These play an important role in the effectiveness of urban green spaces. As internal factors or indexes, the following were extracted; Size index, Shape index, Vegetation species and Tree canopy coverage are the most common indexes in most of the studies. The external factors can be divided into climate and surrounding properties. A discussion of the reviewed studies reflects the impact of each index on the cooling intensity and cooling extension. The existing methods and techniques for determining these indexes have also been considered in this paper. As such, this study is helpful for designers and planners for decision-making during the design phase.

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Section: The Adjacent Urban Fabric (Auf)mentioning

confidence: 99%

Heat mitigation by greening the cities, a review study

Venhari¹,

Tenpierik²,

Hakak³

2017

Environ. Earth Ecol.

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“…While a few emphasize urban areas with zero emissions, others promote the enhancement of existing urban areas in order to make them more sustainable. Scholars also focus on the ways urban areas are shaped and their positions within cities with regard to, for instance, water self-sufficiency, food production, building materials and energy, all of which play a major role in reducing negative emissions (Jamei, Rajagopalan, Seyedmahmoudian, & Jamei, 2015).…”

Section: Green Urbanismmentioning

confidence: 99%

Light Rail Transit and Land Use in Qatar: An Integrated Planning Strategy for Al-Qassar’s Tod

Furlan

AL-Mohannadi

2016

ArchNet-IJAR

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“…Several studies have shown that radiation plays the greatest role on thermal comfort [28,[31][32][33][34]. In [35][36][37][38][39][40], the impact of urban morphology and different heat mitigation strategies on urban climate have been reviewed. Due to the significant role of radiation on thermal comfort, in this paper we focus on the heat mitigation strategies that reduce net radiation in urban spaces.…”

Section: Introductionmentioning

confidence: 99%

Outdoor thermal comfort by different heat mitigation strategies- A review

Taleghani

2018

Renewable and Sustainable Energy Reviews

237

115

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Due to the ongoing global warming, heat mitigation strategies are becoming implemented through practice and simulations. These efforts aim to make the cities that are dealing with the urban heat island more livable. The effect of heat mitigation strategies on climate condition and energy consumption have been studied and compared, previously. In this paper, the effect of these strategies on human thermal comfort in urban open spaces is reviewed. Specifically, the review is focused on vegetation (in the form of parks, street trees, green roofs and green walls), and highly reflective materials (on roof and on the ground level) as the most common strategies for improving the thermal conditions in cities. Several studies done by simulation or through field measurement in different countries are described. The most important finding of the review is the fact that although highly reflective materials reduce air temperature in urban open spaces, they increase the re-radiation of sun to the pedestrians. Therefore, vegetation is a better choice for improving thermal comfort in the pedestrian level.

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Review on the impact of urban geometry and pedestrian level greening on outdoor thermal comfort

Cited by 405 publications

References 185 publications

Heat mitigation by greening the cities, a review study

Heat mitigation by greening the cities, a review study

Light Rail Transit and Land Use in Qatar: An Integrated Planning Strategy for Al-Qassar’s Tod

Outdoor thermal comfort by different heat mitigation strategies- A review

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