The role of urban morphology on outdoor thermal comfort: The case of Al-Sharq City – Az Zarqa

Othman, Hanin Abdel Salam; Alshboul, Abdulsalam A.

doi:10.1016/j.uclim.2020.100706

Cited by 33 publications

(8 citation statements)

References 9 publications

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“…As per the analysis, the average increase in RH in the daytime is 0.26% as compared to the average increase of RH of 2.64% in the nighttime. FSI vs PET(Figure11): The urban form has a noticeable impact on PET (Othman &Alshboul, 2020). From the analysis, it is seen that as the FSI increases from scenario SCN1 to SCN4, the comfort condition improves which is demonstrated by lower mean values of PET.…”

Section: Resultsmentioning

confidence: 94%

Microclimate analysis of high-density urban residential open enclosures: A case of Thane, India

Srivastava

Sharma

Jadon³

2023

ECJ

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Urban heat island produces a significant impact by modifying the microclimate in urban areas. To ensure good quality of life with a safe and healthy built environment, the floor space index (FSI) can be an effective tool. It helps to control the urban densities and shape the morphology of the built environment. Taking the case of typical residential development in a densely populated Indian city, an attempt has been made to explore the relationship between FSI and the microclimate of such open spaces that perform like an open enclosure (OE). Adopting the simulation pathway in ENVI-met, a mathematical relationship is established between an important tool used by urban planners and the variables of the microclimate in a typical urban enclosure. The observations indicate that FSI has a strong negative correlation with air temperature and mean radiant temperature. Evaluation of physiological equivalent temperature reveals a similar relationship with FSI, demonstrating a temporal transposition of the trend for a particular FSI range of 2.5-3.5 in the late evening and early morning hours due to high humidity levels and reduced wind speeds. The study will help the planners to prognosticate the microclimatic variables while working out the data-based, logical and well-evaluated future development control regulations.

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Section: Resultsmentioning

confidence: 94%

Microclimate analysis of high-density urban residential open enclosures: A case of Thane, India

Srivastava

Sharma

Jadon³

2023

ECJ

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“…BN5 (12 buildings) was the optimal level of building number in both winter and summer. Increasing the number of buildings helped to improve thermal comfort in both winter and summer, possibly because more buildings provided more shades in the summer [ 30 , 40 ] and effectively protected from cold winds in the winter. There was no significant regularity in BN at 09:00 in the winter, and this may be caused by ground warming and building shadow cooling.…”

Section: Resultsmentioning

confidence: 99%

“…In terms of model selection, ENVI-met [ 36 ] was used to model the Linpan and simulate the outdoor microclimate and thermal comfort. ENVI-met software is often used to simulate the influence of trees [ 26 , 27 ], water [ 37 ], surface materials [ 38 ], building layout [ 39 , 40 ], etc., and it has been verified by researchers from different countries in multiple climate regions around the world [ 41 ].…”

Section: Methodsmentioning

confidence: 99%

Impacts of Spatial Components on Outdoor Thermal Comfort in Traditional Linpan Settlements

Zhang

Liu

Wei

et al. 2022

IJERPH

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Traditional settlements have received increasing attention because of China’s rural revitalization. Traditional settlements with excellent thermal comfort in rural areas can attract urban residents, so it is vital to explore the thermal comfort of traditional settlements. For this paper, we studied Linpan settlements, which are scattered traditional settlements that are mainly composed of buildings and trees. Firstly, we visually interpreted Linpan settlements by ArcGIS. A total of 1194 Linpan settlements were classified to obtain the spatial components. The statistical results of Linpan were used in the subsequent experimental design. Then ENVI-met was used to simulate 25 different spatial forms of Linpan obtained by statistical results and orthogonal experiment to explore the most comfortable Linpan layout. The results showed the following: (1) Linpan could improve thermal comfort in both winter and summer. Adjusting the spatial arrangement could maximally increase the mean physiological equivalent temperature (PET) of the whole Linpan area by 1.03 °C in winter and reduce it by 3.02 °C in the summer. (2) At different time points, the influence of different space factors on thermal comfort was also different. The overall significance of each factor on thermal comfort was addressed as follows: vegetation coverage (highly significant) > building number (highly significant) > building form (highly significant) > vegetation distribution (significant), but the building distribution was not significant. (3) The best spatial arrangement scheme was high vegetation coverage, a large number of buildings, tri-courtyard buildings, surrounding vegetation distribution, and surrounding building distribution. The innovation of this paper lies in introduced thermal comfort into the traditional Linpan settlement, extracted spatial features of buildings and vegetation by visual interpretation combined with GIS software, and the fact that we conducted the experimental design of microclimate and thermal comfort based on spatial features. The research results can guide the outdoor thermal environment renewal design of Linpan and other traditional settlements.

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“…To follow an evidence-based design process more effectively in complex old city regeneration processes, it is often necessary for several different performance simulation software tools to work together in the process. More studies used Rhinoceros-Grasshopper as the system platform; Ladybug, Honeybee, Butterfly, and Energy plus as the tools to simulate an urban microclimate, building energy consumption, and outdoor thermal comfort; and an interrelationship between Galapagos, Octopus, and other plug-ins for the design of the initial optimization of the program to indicate the direction to achieve "numerical simulation-manual evaluation-manual optimization" [29][30][31][32][33]. Similar discussions were held regarding the optimization of traditional neighborhood regeneration programmed in the cities of Catania (Italy) [34], Laluz (Spain) [35,36], Cairo (Egypt) [37,38], etc.…”

Section: Microclimate Performative Simulation Methodsmentioning

confidence: 99%

Research on Microclimate Performance Simulation Application and Scheme Optimization in Traditional Neighborhood Renewal—A Case Study of Donghuali District, Foshan City

Zheng,

Zhang,

Liu

et al. 2024

Sustainability

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With global warming and rapid urbanization, the microclimate in the Lingnan region is prone to health problems, such as pyrexia and infectious diseases, and the average annual number of heatwave-related deaths is rising rapidly. The large-scale regeneration of traditional neighborhoods in Lingnan under high-quality development is underway, which has implications for the thermal comfort of microclimatic environments. This study focused on the impact of different building unit types and spatial patterns on thermal comfort in the Donghuali traditional neighborhood of Foshan City as an example. We extracted eight basic morphological units and designed a prototype block of 400 m × 400 m. In the Rhinoceros & Grasshopper parametric software 6.7, a variety of plug-ins were integrated to establish a platform with parametric modeling, microclimate simulation and evaluation, and optimal design for thermal comfort. Through experiments, the effects of new single-type and new composite building units on thermal comfort were investigated, and the correlation equations between spatial morphology and microclimate comfort in Lingnan traditional neighborhoods were established. Finally, the multi-objective genetic optimization of thermal comfort was carried out as an example of real block renewal, which provides a practical reference for the planning and design of traditional blocks.

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The role of urban morphology on outdoor thermal comfort: The case of Al-Sharq City – Az Zarqa

Cited by 33 publications

References 9 publications

Microclimate analysis of high-density urban residential open enclosures: A case of Thane, India

Microclimate analysis of high-density urban residential open enclosures: A case of Thane, India

Impacts of Spatial Components on Outdoor Thermal Comfort in Traditional Linpan Settlements

Research on Microclimate Performance Simulation Application and Scheme Optimization in Traditional Neighborhood Renewal—A Case Study of Donghuali District, Foshan City

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