Quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena

Rapid urbanization has led to altered thermal circulations in major cities that are responsible for the increasing occurrence of urban heat islands (UHIs) and events such as tropical nights and heat waves. To effectively mitigate such events, low-impact development (LID) and green infrastructure str...

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Autores principales:	Na Mun-soo, Bae Woo-bin, Kang Hee-man, Kim Yong-gil, Kim Sang-rae
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	climate chamber low-impact development (lid) pavement material tropical night urban heat island (uhi) Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/6775e11da277469db1720c4d3d14b167
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spelling	oai:doaj.org-article:6775e11da277469db1720c4d3d14b1672021-11-06T11:05:32ZQuantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena0273-12231996-973210.2166/wst.2021.118https://doaj.org/article/6775e11da277469db1720c4d3d14b1672021-05-01T00:00:00Zhttp://wst.iwaponline.com/content/83/10/2452https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Rapid urbanization has led to altered thermal circulations in major cities that are responsible for the increasing occurrence of urban heat islands (UHIs) and events such as tropical nights and heat waves. To effectively mitigate such events, low-impact development (LID) and green infrastructure strategies have been developed. In Korea, LID techniques focus mainly on road pavement materials; however, issues regarding the reliability of measurements due to differences in the measurement equipment and studied specimens persist. This study presents the design of a green infrastructure surface temperature measurement (GSTM) instrument and a reliable methodology developed to evaluate the performance of pavement materials under controlled climate conditions. The developed GSTM instrument and methodology were tested by monitoring the surface temperature of materials based on LID practices and dense-graded asphalt and evaluating their ability to mitigate UHI and tropical night phenomena. The experiments were conducted under controlled climate conditions, using summer climate conditions of Seoul's typical meteorological year data. The UHI and tropical night phenomena mitigation performance of the pavement materials was evaluated by analyzing the correlation between the pavement materials' albedo and surface temperature using porous block specimens of different colors and LID-based pavement materials. The greening block recorded the most significant reduction in surface temperature, showing a difference of 22.6 °C, 185 min to the dense-graded asphalt. The white and yellow porous blocks showed surface temperature differences of 10.2 °C and 8.2 °C respectively compared to the dense-graded asphalt. The results revealed that pavement materials with higher albedo, more evaporation, and lower heat capacity have superior performance in mitigating UHI and tropical night events. HIGHLIGHTS Evaluate pavement material performance under controlled climate conditions.; Thermal imaging camera is not recommended for evaluating surface temperature of pavement material.; An experiment is needed to mitigate UHI and tropical night events considering albedo, evaporation, and heat capacity.;Na Mun-sooBae Woo-binKang Hee-manKim Yong-gilKim Sang-raeIWA Publishingarticleclimate chamberlow-impact development (lid)pavement materialtropical nighturban heat island (uhi)Environmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 10, Pp 2452-2462 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	climate chamber low-impact development (lid) pavement material tropical night urban heat island (uhi) Environmental technology. Sanitary engineering TD1-1066
spellingShingle	climate chamber low-impact development (lid) pavement material tropical night urban heat island (uhi) Environmental technology. Sanitary engineering TD1-1066 Na Mun-soo Bae Woo-bin Kang Hee-man Kim Yong-gil Kim Sang-rae Quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena
description	Rapid urbanization has led to altered thermal circulations in major cities that are responsible for the increasing occurrence of urban heat islands (UHIs) and events such as tropical nights and heat waves. To effectively mitigate such events, low-impact development (LID) and green infrastructure strategies have been developed. In Korea, LID techniques focus mainly on road pavement materials; however, issues regarding the reliability of measurements due to differences in the measurement equipment and studied specimens persist. This study presents the design of a green infrastructure surface temperature measurement (GSTM) instrument and a reliable methodology developed to evaluate the performance of pavement materials under controlled climate conditions. The developed GSTM instrument and methodology were tested by monitoring the surface temperature of materials based on LID practices and dense-graded asphalt and evaluating their ability to mitigate UHI and tropical night phenomena. The experiments were conducted under controlled climate conditions, using summer climate conditions of Seoul's typical meteorological year data. The UHI and tropical night phenomena mitigation performance of the pavement materials was evaluated by analyzing the correlation between the pavement materials' albedo and surface temperature using porous block specimens of different colors and LID-based pavement materials. The greening block recorded the most significant reduction in surface temperature, showing a difference of 22.6 °C, 185 min to the dense-graded asphalt. The white and yellow porous blocks showed surface temperature differences of 10.2 °C and 8.2 °C respectively compared to the dense-graded asphalt. The results revealed that pavement materials with higher albedo, more evaporation, and lower heat capacity have superior performance in mitigating UHI and tropical night events. HIGHLIGHTS Evaluate pavement material performance under controlled climate conditions.; Thermal imaging camera is not recommended for evaluating surface temperature of pavement material.; An experiment is needed to mitigate UHI and tropical night events considering albedo, evaporation, and heat capacity.;
format	article
author	Na Mun-soo Bae Woo-bin Kang Hee-man Kim Yong-gil Kim Sang-rae
author_facet	Na Mun-soo Bae Woo-bin Kang Hee-man Kim Yong-gil Kim Sang-rae
author_sort	Na Mun-soo
title	Quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena
title_short	Quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena
title_full	Quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena
title_fullStr	Quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena
title_full_unstemmed	Quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena
title_sort	quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/6775e11da277469db1720c4d3d14b167
work_keys_str_mv	AT namunsoo quantitativeevaluationofthemitigationeffectoflowimpactdevelopmentpavementmaterialsonurbanheatislandandtropicalnightphenomena AT baewoobin quantitativeevaluationofthemitigationeffectoflowimpactdevelopmentpavementmaterialsonurbanheatislandandtropicalnightphenomena AT kangheeman quantitativeevaluationofthemitigationeffectoflowimpactdevelopmentpavementmaterialsonurbanheatislandandtropicalnightphenomena AT kimyonggil quantitativeevaluationofthemitigationeffectoflowimpactdevelopmentpavementmaterialsonurbanheatislandandtropicalnightphenomena AT kimsangrae quantitativeevaluationofthemitigationeffectoflowimpactdevelopmentpavementmaterialsonurbanheatislandandtropicalnightphenomena
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Quantitative evaluation of the mitigation effect of low-impact development pavement materials on urban heat island and tropical night phenomena

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