Abstract
The study on outdoor comfort is becoming popular due to the fact that the thermoregulatory model is seen as inadequate in explaining outdoor thermal comfort conditions. Hot-humid region can be said as experiencing a critical environmental condition because of its constantly high temperature and humidity throughout the year. Thus, this study focus on the assessment of thermal comfort of outdoor urban spaces in Kuala Lumpur, Malaysia (3° 9’N and 101° 44’E). Survey on human response towards outdoor thermal comfort in hot-humid climate of Kuala Lumpur, Malaysia was carried out during day time between 0900h to 1800h along with measurement of environmental parameters such as air temperature (°C), wind velocity (m/s), radiant temperature (°C), relative humidity (%) and solar radiation (lux). A total of 123 samples were involved in this study which took place within four sites around Kuala Lumpur. Survey results were then correlated with the environmental parameters to further develop the comfort zone for hot-humid outdoor environment specifically for Kuala Lumpur and, generally, for hot-humid regions.
Highlights
Interest in research on outdoor thermal comfort has been increasing lately, especially in tropical regions [1],[2],[3],[4],[5],[6]
This study addresses outdoor human thermal comfort within hothumid urban open spaces by analyzing factors influencing thermal comfort, especially environmental parameters, which affect the microclimatic environment of the design itself, and the physiological aspect of the subjects - in terms of their physical activities and clothing
4.1 The Courtyards: C1(5484m2), C2(2500m2), and C3(520m2). These three types of courtyards studied represented the followings, and their images are shown in figure 1: i. paved courtyard : named as Courtyard 1 (C1) – regarded as 100% paved; ii. partially-paved courtyard : named as Courtyard 2 (C2) – refer to Table 5; iii. turfed courtyard : named as Courtyard 3 (C3) – regarded as 100% turfed
Summary
Interest in research on outdoor thermal comfort has been increasing lately, especially in tropical regions [1],[2],[3],[4],[5],[6]. It has been assumed that the indoor thermal comfort theory can be applied to the outdoor. It has been emphasized [7] that due to the dynamic outdoor environment and such, the thermoregulatory model is seen as inadequate in explaining outdoor thermal comfort conditions. This study addresses outdoor human thermal comfort within hothumid urban open spaces by analyzing factors influencing thermal comfort, especially environmental parameters, which affect the microclimatic environment of the design itself, and the physiological aspect of the subjects - in terms of their physical activities and clothing
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