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Review of studies on outdoor thermal comfort in warm humid climates : challenges of informal urban fabric

Baruti, Modest Maurus LU ; Johansson, Erik LU and Åstrand, Johnny LU (2019) In International Journal of Biometeorology 63(10). p.1449-1462
Abstract

In warm humid climate regions where majority of the population spend most of the time outdoors, an adequate outdoor thermal environment is crucial. A number of studies on outdoor thermal comfort in warm humid climates were carried out in the past decade. However, most of these studies focused on the formal urban fabric and left the informal urban fabric, where typically 30 to 85% of the population in developing countries resides, unattended. Theoretically, the informal urban fabric structure of towns/cities poses many outdoor thermal environmental challenges, such as lack of air movement, high thermal stress and discomfort. This paper reviews previous research on outdoor thermal comfort in warm humid climates, and, particularly, it... (More)

In warm humid climate regions where majority of the population spend most of the time outdoors, an adequate outdoor thermal environment is crucial. A number of studies on outdoor thermal comfort in warm humid climates were carried out in the past decade. However, most of these studies focused on the formal urban fabric and left the informal urban fabric, where typically 30 to 85% of the population in developing countries resides, unattended. Theoretically, the informal urban fabric structure of towns/cities poses many outdoor thermal environmental challenges, such as lack of air movement, high thermal stress and discomfort. This paper reviews previous research on outdoor thermal comfort in warm humid climates, and, particularly, it focuses on the relationship between outdoor thermal comfort and urban fabric as well as human thermal perception. Regarding the formal urban fabric, this review asserts that the thermal comfort range is higher in warm humid climates than in temperate climates and that thermal indices alone cannot predict thermal comfort; behavioural and psychological adaptation have proven to have a big impact on thermal perception. As for the informal urban fabric, only few studies have investigated the influence of the urban geometry and none has studied people’s thermal perception of the outdoor thermal environment. To conclude, the article highlights practical challenges posed by the informal urban fabric in contrast to the formal urban fabric in terms of structure (morphology).

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Acceptable index temperature limits, Informal settlements, Informal urban fabric, Outdoor thermal comfort, Thermal indices, Warm humid climates
in
International Journal of Biometeorology
volume
63
issue
10
pages
1449 - 1462
publisher
Springer
external identifiers
  • scopus:85069518872
  • pmid:31324980
ISSN
0020-7128
DOI
10.1007/s00484-019-01757-3
language
English
LU publication?
yes
id
c2945ee1-c195-4956-bd99-267a65da9092
date added to LUP
2019-08-09 14:46:06
date last changed
2024-04-02 15:37:12
@article{c2945ee1-c195-4956-bd99-267a65da9092,
  abstract     = {{<p>In warm humid climate regions where majority of the population spend most of the time outdoors, an adequate outdoor thermal environment is crucial. A number of studies on outdoor thermal comfort in warm humid climates were carried out in the past decade. However, most of these studies focused on the formal urban fabric and left the informal urban fabric, where typically 30 to 85% of the population in developing countries resides, unattended. Theoretically, the informal urban fabric structure of towns/cities poses many outdoor thermal environmental challenges, such as lack of air movement, high thermal stress and discomfort. This paper reviews previous research on outdoor thermal comfort in warm humid climates, and, particularly, it focuses on the relationship between outdoor thermal comfort and urban fabric as well as human thermal perception. Regarding the formal urban fabric, this review asserts that the thermal comfort range is higher in warm humid climates than in temperate climates and that thermal indices alone cannot predict thermal comfort; behavioural and psychological adaptation have proven to have a big impact on thermal perception. As for the informal urban fabric, only few studies have investigated the influence of the urban geometry and none has studied people’s thermal perception of the outdoor thermal environment. To conclude, the article highlights practical challenges posed by the informal urban fabric in contrast to the formal urban fabric in terms of structure (morphology).</p>}},
  author       = {{Baruti, Modest Maurus and Johansson, Erik and Åstrand, Johnny}},
  issn         = {{0020-7128}},
  keywords     = {{Acceptable index temperature limits; Informal settlements; Informal urban fabric; Outdoor thermal comfort; Thermal indices; Warm humid climates}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{10}},
  pages        = {{1449--1462}},
  publisher    = {{Springer}},
  series       = {{International Journal of Biometeorology}},
  title        = {{Review of studies on outdoor thermal comfort in warm humid climates : challenges of informal urban fabric}},
  url          = {{http://dx.doi.org/10.1007/s00484-019-01757-3}},
  doi          = {{10.1007/s00484-019-01757-3}},
  volume       = {{63}},
  year         = {{2019}},
}