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Identifying Potential Indicators of Neighbourhood Solar Access in Urban Planning

Czachura, Agnieszka LU ; Gentile, Niko LU ; Kanters, Jouri LU and Wall, Maria LU (2022) In Buildings 12(10).
Abstract
Solar access describes the capacity of urban spaces to receive sunlight and daylight. Rapid urbanization and unbridled densification pose a threat to sustainable solar access, reducing the penetration of sunlight and daylight into cities. To effectively assess solar access at such an early design stage, at the urban planning level, it is critical that evaluation metrics are simple and reliable. This paper examines a cross section of solar metrics, from simple to more complex ones, to find potential solar performance indicators for urban planning evaluations. The metric datasets were created based on iterations of homogeneous neighbourhood designs, based on the three commonest typologies in the Swedish context: courtyard, slab, and tower.... (More)
Solar access describes the capacity of urban spaces to receive sunlight and daylight. Rapid urbanization and unbridled densification pose a threat to sustainable solar access, reducing the penetration of sunlight and daylight into cities. To effectively assess solar access at such an early design stage, at the urban planning level, it is critical that evaluation metrics are simple and reliable. This paper examines a cross section of solar metrics, from simple to more complex ones, to find potential solar performance indicators for urban planning evaluations. The metric datasets were created based on iterations of homogeneous neighbourhood designs, based on the three commonest typologies in the Swedish context: courtyard, slab, and tower. The results were validated using case studies sampled from districts of Malmö. The findings indicate that simple geometrical and latitudinal metrics may be suitable for assessing the solar access of urban designs due to high correlation with built density. Potential performance indicators aimed at indoor and outdoor evaluation of daylighting (VSC, SVF) and sunlighting (ASH_F, RD_G) in urban planning stages were suggested. Possible methods of applying the provided metric database into assessments were proposed. Future work should find evidence-based thresholds for the metric values to establish performance benchmarks. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
solar access, daylight, sunlight, Kendall correlation, regression analysis, urban planning, performance indicator, neighbourhood scale
in
Buildings
volume
12
issue
10
article number
1575
publisher
MDPI AG
external identifiers
  • scopus:85140718579
ISSN
2075-5309
DOI
10.3390/buildings12101575
language
English
LU publication?
yes
id
db4f00e2-1d4f-484c-8ac0-e5b070e3c209
date added to LUP
2022-10-04 10:08:18
date last changed
2023-04-05 22:32:45
@article{db4f00e2-1d4f-484c-8ac0-e5b070e3c209,
  abstract     = {{Solar access describes the capacity of urban spaces to receive sunlight and daylight. Rapid urbanization and unbridled densification pose a threat to sustainable solar access, reducing the penetration of sunlight and daylight into cities. To effectively assess solar access at such an early design stage, at the urban planning level, it is critical that evaluation metrics are simple and reliable. This paper examines a cross section of solar metrics, from simple to more complex ones, to find potential solar performance indicators for urban planning evaluations. The metric datasets were created based on iterations of homogeneous neighbourhood designs, based on the three commonest typologies in the Swedish context: courtyard, slab, and tower. The results were validated using case studies sampled from districts of Malmö. The findings indicate that simple geometrical and latitudinal metrics may be suitable for assessing the solar access of urban designs due to high correlation with built density. Potential performance indicators aimed at indoor and outdoor evaluation of daylighting (VSC, SVF) and sunlighting (ASH_F, RD_G) in urban planning stages were suggested. Possible methods of applying the provided metric database into assessments were proposed. Future work should find evidence-based thresholds for the metric values to establish performance benchmarks.}},
  author       = {{Czachura, Agnieszka and Gentile, Niko and Kanters, Jouri and Wall, Maria}},
  issn         = {{2075-5309}},
  keywords     = {{solar access; daylight; sunlight; Kendall correlation; regression analysis; urban planning; performance indicator; neighbourhood scale}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{10}},
  publisher    = {{MDPI AG}},
  series       = {{Buildings}},
  title        = {{Identifying Potential Indicators of Neighbourhood Solar Access in Urban Planning}},
  url          = {{http://dx.doi.org/10.3390/buildings12101575}},
  doi          = {{10.3390/buildings12101575}},
  volume       = {{12}},
  year         = {{2022}},
}