Evaluating The Influence of Building Typologies and Attributes on Outdoor Thermal Comfort in Urban Environments
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Abstract
The variation in urban microclimate is closely related to the building's physical attributes, including building height, material composition, building condition, building size, building morphology, and building type. Changes in microclimate due to the continuous expansion of urban buildings have a significant impact on the health and comfort level of urban residents. Thus, it is necessary to understand the influence of built environment factors towards outdoor thermal comfort, particularly in tropical cities like Kuching, Sarawak. This study investigates the interplay between building typologies and microclimatic factors in Kuching, Sarawak, focusing on residential, commercial, office and educational buildings. Field measurements of air temperature, relative humidity, wind speed, and heat index were conducted over more than seven consecutive days in April 2024 using handheld environmental meters. The measurement was recorded every two hours per day at sixteen (16) static points across different types of buildings. The data were collected manually with the sensor positioned at a height of approximately 1.5 m above ground level, taking into account the average breathing zone height of a standing adult. Additional data, including human activities around each study area, were also recorded to account for the influence of these factors on the microclimate. Following the confirmation of non-normality in the dataset through a Kolmogorov-Smirnov test, a Kruskal-Wallis test was performed. The results reveal that wind speed and relative humidity vary significantly among building types (p < 0.05), whereas air temperature and heat index show a consistent statistical pattern. In the analysis, commercial areas showed the highest wind speeds, while residential areas recorded the highest relative humidity. Therefore, the result clearly underscored that the importance of building types, spatial design, materials, and methods influences outdoor thermal comfort.
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References
N. Ramly et al., “Impact of Urban Heat Island on Human Health: A Systematic Review,” Malaysian J. Publ. Health Medic., vol. 24, no. 1, pp. 172–186, 2024.
P. Kumar and A. Sharma, “Study on Importance, Procedure, and Scope of Outdoor Thermal Comfort – A review,” Sustain. Cit. and Soc., vol. 61, pp. 102297, 2020.
R. Aghamolaei, M. M. Azizi, B. Aminzadeh and J. O'Donnell, “A Comprehensive Review of Outdoor Thermal Comfort in Urban Areas: Effective Parameters and Approaches,” Ener. and Environ., vol. 34, no. 6, pp. 2204–2227, 2023.
D. Kolokotsa et al., “Analyzing the Impact of Urban Planning and Building Typologies in Urban Heat Island Mitigation,” Buildings, vol. 12, no. 5, pp. 537, 2022.
N. Wonorahardjo et al., “Effect of Different Building Façade Systems on Thermal Comfort and Urban Heat Island Phenomenon: An Experimental Analysis,” Build. and Environ., vol. 217, pp. 109063, 2022.
L. Brant, “What is an Urban Heat Island?,” Buildings.com, 2024. [Available online]
https://www.buildings.com/resiliency-sustainability/article/55055208/what-is-an-urban-heat-island.
S. Y. Chan, C. K. Chau and T. M. Leung, “On the Study of Thermal Comfort and Perceptions of Environmental Features in Urban Parks: A Structural Equation Modeling Approach,” Build. and Environ., vol. 122, pp. 171–183, 2017.
F. Aljawabra and M. Nikolopoulou, “Influence of Hot Arid Climate on the Use of Outdoor Urban Spaces and Thermal Comfort: Do Cultural and Social Backgrounds Matter?,” Intellig. Build. Int., vol. 2, no.3, pp. 198–217, 2010.
O. Potchter, P. Cohen, T. P. Lin and A. Matzarakis, “Outdoor Human Thermal Perception in Various Climates: A Comprehensive Review of Approaches, Methods and Quantification,” Sci. the Total Environ., vol. 631, pp. 390–406, 2018.
J. Yang, B. Shi, G. Xia, Q. Xue and S. J. Cao, “Impacts of Urban Form on Thermal Environment Near the Surface Region at Pedestrian Height: A Case Study Based on High-Density Built-Up Areas of Nanjing City in China,” Sustainability, vol. 12, no. 5, pp. 1737, 2020.
J. Li, I. Zhao, Z. Peng, Z. Wang and T. Shui, “Study on Outdoor Thermal Comfort in The Transitional Season of Hefei,” E3S Web of Conf., vol. 165, pp. 01026, 2020.
M. Wang and H. Xu, “The Impact of Building Height on Urban Thermal Environment in Summer: A Case Study of Chinese Megacities,” PLoS ONE, vol. 16, no. 4, pp. e0247786, 2021.
Q. Chen et al., “Evaluating The Impact of Sky View Factor and Building Shadow Ratio on Air Temperature in Different Residential and Commercial Building Scenarios: A Case Study of Beijing, China,” Urban Climate, vol. 49, pp. 101509, 2023.
X. Zhang et al., “Review of Land Surface Albedo: Variance Characteristics, Climate Effect and Management Strategy,” Remote Sens., vol. 14, no. 6, pp.1382, 2022.
H. Xu, H. Chen, C. Qian and J. Li, “The Evapotranspiration Characteristics and Evaporative Cooling Effects of Different Vegetation Types on An Intensive Green Roof: Dynamic Performance Under Different Weather Conditions” Sustainability, vol. 16, no. 24, pp. 10812, 2024.
Y. Tan, C. Li, H. Feng and J. Yang, “Exploring The Land Cover Material Interaction of Urban Open Space on The Thermal Comfort of Crowds in High-Temperature Environments and Retrofit Strategies: Two Case Studies in The Nanjing Xinjiekou District,” Land, vol. 13, no. 3, pp. 314, 2024.
Y. S. Liu et al., “Leveraging the Opportunities of Wind for Cities Through Urban Planning and Design: A PRISMA Review,” Sustainability, vol. 14, no. 18, pp. 11665, 2022.
S. Jo, H. Kong, N. Choi, Y. Shin and S. Park., “Comparison of The Thermal Environment by Local Climate Zones in Summer: A Case Study in Suwon, Republic of Korea.” Sustainability, vol. 15, no.3, pp. 2620, 2023.
T. Hong et al., “Urban Microclimate and Its Impact on Building Performance: A Case study of San Francisco,” Urban Climate, vol. 38, pp. 100871, 2021.
Z. Liu et al., “Research on Energy-Saving Factors Adaptability of Exterior Envelopes of University Teaching-Office Buildings Under Different Climates (China) Based on Orthogonal Design and EnergyPlus,” Heliyon, vol. 8, no. 8, pp. e10056, 2022.
A. C. Lazaroiu, C. Panait, G. Seritan, G. Popescu and M. Roscia, “Maximizing Renewable Energy and Storage Integration in University Campuses,” Renew. Ener., vol. 230, pp. 120871, 2024.
Q. Cao, Q. Luan, Y. Liu and R. Wang, “The Effects of 2D and 3D Building Morphology on Urban Environments: A Multi-Scale Analysis in The Beijing Metropolitan Region,” Build. and Environ., vol. 192, pp. 107635, 2021.
N. Li, J. Yang and X. Tang, “Spatiotemporal Scale-Dependent Effects of Urban Morphology on Meteorology: A Case Study in Beijing Using Observations and Simulations,” Build. and Environ., vol. 240, pp. 110383, 2023.