Urban Design Guidelines to Mitigate Urban Heat Island (UHI) Effects In Hot-Dry Cities

Taslim, Shima; Parapari, Danial Monsefi; Shafaghat, Arezou

doi:10.11113/jt.v74.4619

Cited by 21 publications

(17 citation statements)

References 32 publications

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“…Another significant consequence of UHI is the intensification of energy usage for air-conditioning especially in hot climates. For instance, the UHI imposes residents of Los Angeles to pay approximately US$ 100 million annually for energy (Taslim, Parapari, & Shafaghat, 2015).…”

Section: Emerging Trends To Study Uhimentioning

confidence: 99%

Urban heat island mitigation strategies: A state-of-the-art review on Kuala Lumpur, Singapore and Hong Kong

Aflaki

Mirnezhad

Ghaffarianhoseini

et al. 2017

Cities

285

120

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Observing the rapid urban expansions and numerous infrastructure developments in the East-Asian context, many cities are suffering the urban heat island (UHI) effect and its associated environmental and social challenges. Moreover, the lack of sufficient attention to the application of effective heat mitigation strategies in current urban development in these cities can drastically intensify the eventual impacts of UHI. Therefore, many governmental sectors and policy makers have been implementing operative solutions for cooling cities. Nevertheless, this study argues that in Kuala Lumpur, despite the growing attention to this matter, there is still a need for more rigorous consideration by the architecture, engineering and construction (AEC) professionals as well as more scholarly studies to reflect sustainable solutions to the UHI effect. As a result, today, some of the dense urban areas in Kuala Lumpur are characterized with the use of thermally massive building materials, urban surfaces with low albedo, complex urban morphology, waste heat, and low density of vegetation. On the other hand, recent studies demonstrate that there has been a rapidly increasing interest in studies related to UHI in other East Asian regions such as Singapore and Hong Kong. Hence, this study develops a comparative analysis to provide a state-of-the-art review of the recent attempts towards mitigating the UHI effect in Kuala Lumpur, Singapore, and Hong Kong. Among several available UHI mitigation strategies, this study is limited to the analysis of the environmental impacts of urban vegetation (green roofs, green facades, vertical greeneries and green pavements). Findings reveal that in general, urban greening can significantly mitigate the UHI intensity, both directly and indirectly, resulting in the decrease of global air temperature and mean radiant temperature up to 4 ˚C and 4.5 ˚C respectively. Overall, the study develops new practical guidelines, discusses the public benefits and elaborates on the future directions of UHI studies.

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Section: Emerging Trends To Study Uhimentioning

confidence: 99%

Urban heat island mitigation strategies: A state-of-the-art review on Kuala Lumpur, Singapore and Hong Kong

Aflaki

Mirnezhad

Ghaffarianhoseini

et al. 2017

Cities

285

120

View full text Add to dashboard Cite

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“…It lowers workers' productivity, hereby causing negative economic consequences [11]. The UHI effect seems to raise energy consumption due to a higher usage of air conditioning [12][13][14][15][16][17]. This may result in increased electricity consumption from fossil fuels and hence in a deteriorated air quality and in increased greenhouse gas emissions [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Willingness to Pay for Urban Heat Island Mitigation: A Case Study of Singapore

Borzino

Chng

Mughal

et al. 2020

Climate

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In many countries, urban heat island (UHI) effects come along with urbanization in metropolitan areas. They have relevant adverse effects on the health and wellbeing of citizens. Singapore is strongly affected by UHI. In this study, we assess Singaporeans’ willingness to pay (WTP) for UHI mitigation by implementing a contingent valuation analysis. Specifically, we employ a double-bounded dichotomous survey design on a representative sample of 1822 online respondents. We find that Singaporeans are willing to sacrifice on average 0.43% of their annual income to mitigate UHI. The total WTP for mitigation strategies among Singapore citizens and permanent residents is estimated at SGD$783.08 million per year, the equivalent of USD$563.80 per year. Our findings suggest that there is a positive and significant relationship between the size of UHI effects and the citizens’ WTP. People living in the region with the highest intensity of UHI are willing to pay 3.09 times more than those living in the region with the lowest UHI intensity. Furthermore, demographic and socio-economic characteristics are significant determinants of Singaporeans’ WTP. The WTP increases with income and education but decreases with age. Students, men, and people with children are willing to pay more. Additional analyses show that the level of UHI awareness, positive attitudes towards UHI mitigation strategies as well as preferences for outdoor activities are positively correlated with the WTP. Our findings suggest that citizens are aware of the impacts of UHI and support UHI mitigation measures to be financed by their taxes. Policy interventions to promote UHI-related education and disseminating UHI-related information might increase the support of UHI mitigation policies.

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“…Three types of urban heat islands were recognised by [26]. The Boundary Layer Heat Island (BLHI), Canopy Layer Heat Island (CLHI), and Surface Layer Heat Island (SLHI) were identified.…”

Section: Types Of Urban Heat Islandmentioning

confidence: 99%

A geographical review of urban farming and urban heat island in developing countries

Ladan¹,

Ibrahim

Ali

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Cities in developing countries are heavily involved in urban agricultural activities, and a lot of research has been done to address the challenges in this regard. However, several studies have proposed taking advantage of them in reducing the impact of urban heat islands (UHIs), which are manifested as a consequence of stringent changes in energy use, human settlement patterns, industry, transportation, and population growth. Data for this study were obtained from a literature search of existing academic journals, the domain of agriculturally related organisations, and books; the investigation was mainly based on developing nations. Best practices of scholarly work did the review. Authors stand posited. Urban farming has been employed in cities mainly as a food source while also catering to the changing needs of the urban dweller’s lifestyles. There is an urgent need to investigate the potentials of urban farming not just as food crops but as green infrastructure in ameliorating urban heat island intensities in our cities.

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Urban Design Guidelines to Mitigate Urban Heat Island (UHI) Effects In Hot-Dry Cities

Cited by 21 publications

References 32 publications

Urban heat island mitigation strategies: A state-of-the-art review on Kuala Lumpur, Singapore and Hong Kong

Urban heat island mitigation strategies: A state-of-the-art review on Kuala Lumpur, Singapore and Hong Kong

Willingness to Pay for Urban Heat Island Mitigation: A Case Study of Singapore

A geographical review of urban farming and urban heat island in developing countries

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