Evidence-based neighborhood greening and concomitant improvement of urban heat environment in the context of a world heritage site - Malacca, Malaysia

Saito, Kei; Said, Ismail; Shinozaki, Michihiko

doi:10.1016/j.compenvurbsys.2017.04.003

Cited by 23 publications

(15 citation statements)

References 30 publications

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“…In the past decades, studies on the outdoor environment thermal comfort were mostly concentrated in the temperate region (e.g., Thorsson et al [33]; Hutter et al [34]; Chen and Ng, [35]). There are limited studies conducted in the arid climate region (Mahmoud, [36]; Berkovic et al [37]) and the tropical climate region (Makaremi et al [38]; Saito et al [39]). To date, to the best of our knowledge, most of the thermal comfort studies focus on an urban or city-like setting, using both field measurement and/or modelling approaches, ranging from small areas (i.e., courtyard, street, and square) to large areas (i.e., plaza and neighborhood park).…”

Section: Introductionmentioning

confidence: 99%

“…To date, to the best of our knowledge, most of the thermal comfort studies focus on an urban or city-like setting, using both field measurement and/or modelling approaches, ranging from small areas (i.e., courtyard, street, and square) to large areas (i.e., plaza and neighborhood park). Little efforts have been made to understand HTC in broader and more inclusive outdoor environments, although there are some HTC studies that have been conducted in courtyards [40], street landscapes [39], and the campus environment [38]. Putting it in the context of Malaysia, although many studies have been conducted on UHI (see Zaki et al [41]), they are not specifically directed at investigating how and to what extent urban-rural gradients and different land use land cover (LULC) types are associated with HTC.…”

Section: Introductionmentioning

confidence: 99%

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Interrelationships between Land Use Land Cover (LULC) and Human Thermal Comfort (HTC): A Comparative Analysis of Different Spatial Settings

et al. 2021

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A few studies on outdoor human thermal comfort (HTC) have been conducted in the tropical region in a hot and humid climate; however, there is a paucity of discussions on how exactly different spatial settings influence HTC. Thus, this paper aims to examine how land use land cover (LULC) affects HTC on the basis of the simulation of Predicted Mean Vote (PMV) and Physiologically Equivalent Temperature (PET) indices via ENVI-met and Rayman. The results reveal that people living in the urban area have a higher tendency to experience strong heat stress (25% of the areas with PMV ranging from 3.4 to 3.9 and 2% of the areas, where PMV reached 4.1), followed by the rural area (43% of the areas with PMV ranging from 2.1 to 2.4), and the suburban area (more than 50% of the areas with PMV values less than 2.4). Surprisingly, a concrete LULC in the suburb area exhibits a higher air temperature than an asphalt surface at 4 p.m., due to the large area of high albedo that increases the reflection of solar radiation, subsequently contributing to warming up the airmass. Similarly, sandy, and loamy LULC tend to emit more heat during nighttime, while the heat is absorbed slowly during daytime, and it is then slowly released during nighttime after 6 p.m. Spatial settings that promote heat stress in the urban area are mainly contributed by an LULC of asphalt, concrete, sandy, and loamy areas. Meanwhile, people in the suburban and rural areas are less likely to experience heat stress, due to agricultural plantations and lowland forest that provide shade, except for the barren lands-loamy areas. The result also indicates that tree-covered areas near the river in the suburban area afforded the best thermal experience with PMV of 2.1 and PET of 30.7. From the LULC comparison, it is pivotal to consider tree species (canopy density), surface material (albedo), sky-view factor, wind direction, and speed toward designing a more comfortable and sustainable environment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interrelationships between Land Use Land Cover (LULC) and Human Thermal Comfort (HTC): A Comparative Analysis of Different Spatial Settings

et al. 2021

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“…The overall configuration for simulation was shown in Table 1. The simulation was set for June 21 st , 2018, the summer solstice that represented the longest daytime of a year (Chen & Ng, 2013;Saito et al, 2017). The total simulation time was 24 hours, starting from 18:00 on the previous day (June 20 th ).…”

Section: Scenario Designmentioning

confidence: 99%

Developing climate-led landscapes and greenery in urban design: a case study at Ipoh, Malaysia

Teoh

Shinozaki

Saito

et al. 2021

Journal of Asian Architecture and Building Engineering

Self Cite

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Designing urban landscapes for climate change adaptation and mitigation is highly promoted for contemporary urban development. However, the lack of climate-based design knowledge and techniques in existing urban landscape practice has challenged the implementation. This paper, therefore, introduced climate-led as a practical approach for urban landscape design to overcome such a dilemma. This approach was results-oriented with integrated use of microclimate, thermal comfort, and GIS modelling and simulation tools. Through the computer-based scenarios building and comparison, this paper has analyzed and figured out efficient landscape designs for microclimate and thermal comfort improvement in Ipoh, Malaysia. In this case, shading most determined the level of cooling and pedestrian thermal comfort, leading the effective street tree planting became an essential measure in the tropical climate-led plan. Besides, this study found that wind did not positively influence thermal comfort due to site characteristic at a particular time, in contrast with other hot regions. In conclusion, developing climate-led landscape and greenery in urban design is a functional initiative for urban cooling and sustainable urban development. Furthermore, the application of modelling and simulation methods in urban landscape design can reduce the possibility of failure in practice, thereby promising urban efficiency in response to climate change.

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“…All these situations have led to the increase in the temperature in central urban districts, and the deterioration of ecological environment in cities has become an unstoppable trend [1][2][3]. The urban heat island effect, which has a direct impact on the thermal comfort of human body and the efficiency of industrial production, has become a common problem for large and medium-sized cities in China [4][5][6][7]. Carrying out studies on the monitoring, simulation, and regulation of the thermal environment of cities can effectively alleviate the increasingly serious urban heat island effect, help reduce energy consumption, prevent environmental pollution, and improve living conditions [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Influencing Factors and Quality Evaluation of Urban Thermal Environment Based on Artificial Neural Network

Zhao¹,

Li²,

Chai³

2021

IJHT

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To alleviate the urban heat island effect that is getting increasingly serious these days, the research on the monitoring, simulation, and regulation of the thermal environment of cities has become a necessity. Aiming at figuring out the correlations between influencing factors and giving accurate quality evaluation of urban thermal environment, this study extracted 10 influencing factors of urban thermal environment and gave their influence, and then performed the Land Surface Temperature (LST) retrieval of a target city. After that, this paper constructed a Multiple Linear Regression (MLR) model and explored the law of the numerical changes of the influencing factors of urban thermal environment. At last, this paper also built a BP neural network to predict the quality evaluation of urban thermal environment and used experimental results to prove the effectiveness of the proposed algorithm and model.

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Evidence-based neighborhood greening and concomitant improvement of urban heat environment in the context of a world heritage site - Malacca, Malaysia

Cited by 23 publications

References 30 publications

Interrelationships between Land Use Land Cover (LULC) and Human Thermal Comfort (HTC): A Comparative Analysis of Different Spatial Settings

Interrelationships between Land Use Land Cover (LULC) and Human Thermal Comfort (HTC): A Comparative Analysis of Different Spatial Settings

Developing climate-led landscapes and greenery in urban design: a case study at Ipoh, Malaysia

Influencing Factors and Quality Evaluation of Urban Thermal Environment Based on Artificial Neural Network

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