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Urban Geometry, SVF and Insolation of Open Spaces: the case of London and Paris

Chatzipoulka, Christina, Nikolopoulou, Marialena (2018) Urban Geometry, SVF and Insolation of Open Spaces: the case of London and Paris. Building Research & Information, 46 (8). pp. 881-898. ISSN 0961-3218. E-ISSN 1466-4321. (doi:10.1080/09613218.2018.1463015)

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https://doi.org/10.1080/09613218.2018.1463015

Abstract

The radiant environment in open spaces is very sensitive to the surrounding built form, which determines their openness to the sky and exposure to the sun. This paper presents the analysis of 132 urban forms in London and Paris, two cities at similar geographical latitude, but of different urban geometry, focusing on the relationship between urban geometry and insolation of open spaces at neighbourhood scale. The method consists of three stages: (1) the geometric analysis of the urban forms, (2) their solar access analysis and (3) the statistical exploration of the results. Special emphasis is on the sky view factor (SVF), which is employed as an integrated geometry variable and environmental performance indicator. The comparative analysis of the two cities underlines the significance of urban layout for modifying the outdoor radiant environment, and reveals temporal characteristics of the relation between urban geometry and insolation of urban forms, induced by the varying solar geometry. Indicatively, the average mean ground SVF (mSVF) was found to be primarily affected by the quantitative characteristics of the open space, and able to predict average daytime insolation on March 21 and June 21 (R2?>?0.8), in both cities.

Item Type: Article
DOI/Identification number: 10.1080/09613218.2018.1463015
Uncontrolled keywords: density, microclimates, Sky View Factor (SVF), solar absorption, urban design, urban fabric, urban form, urban geometry, urban heat island
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions: Faculties > Humanities > Architecture
Depositing User: Marialena Nikolopoulou
Date Deposited: 16 Apr 2018 22:59 UTC
Last Modified: 29 May 2019 20:28 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/66738 (The current URI for this page, for reference purposes)
Chatzipoulka, Christina: https://orcid.org/0000-0003-4373-6918
Nikolopoulou, Marialena: https://orcid.org/0000-0002-0528-2145
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