The role of sky view factor and urban street greenery in human thermal comfort and heat stress in a desert climate

Armaghan Ahmadi Venhari; Martin Tenpierik; Mohammad Taleghani

doi:10.1016/j.jaridenv.2019.04.009

The role of sky view factor and urban street greenery in human thermal comfort and heat stress in a desert climate

Armaghan Ahmadi Venhari, Martin Tenpierik, Mohammad Taleghani

Building Physics

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Abstract

The aim of this study was to understand the effect of urban street greenery type and arrangements on thermal comfort and heat stress in summer. Field measurements and computer simulations were carried out on East-West (E-W) and North-South (N-S) oriented streets in Isfahan, Iran. Through the field measurements in July 2014, 17 different streets were studied, followed by 15 perturbation scenarios (urban design alternatives) simulated by ENVI-met. The study showed that there is a significant and positive relationship between the Sky View Factor (SVF) and the Physiological Equivalent Temperature (PET) values. Comparison of the meteorological parameters within different street orientations showed that the effect of the SVF on the E-W streets was more significant than in N-S streets. Furthermore, greenery arrangement and building heights showed different impacts on the outdoor thermal comfort streets with different orientations.

Original language	English
Pages (from-to)	68-76
Number of pages	9
Journal	Journal of Arid Environments
Volume	166
DOIs	https://doi.org/10.1016/j.jaridenv.2019.04.009
Publication status	Published - 2019

Bibliographical note

Accepted Author Manuscript

Keywords

Desert climate
Heat stress
Sky view factor
Thermal comfort
Urban greenery
Urban streets

Access to Document

10.1016/j.jaridenv.2019.04.009

2nd_Revision_Manuscript_Clean_CopyAccepted author manuscript, 1.8 MBLicence: CC BY-NC-ND

Cite this

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title = "The role of sky view factor and urban street greenery in human thermal comfort and heat stress in a desert climate",

abstract = "The aim of this study was to understand the effect of urban street greenery type and arrangements on thermal comfort and heat stress in summer. Field measurements and computer simulations were carried out on East-West (E-W) and North-South (N-S) oriented streets in Isfahan, Iran. Through the field measurements in July 2014, 17 different streets were studied, followed by 15 perturbation scenarios (urban design alternatives) simulated by ENVI-met. The study showed that there is a significant and positive relationship between the Sky View Factor (SVF) and the Physiological Equivalent Temperature (PET) values. Comparison of the meteorological parameters within different street orientations showed that the effect of the SVF on the E-W streets was more significant than in N-S streets. Furthermore, greenery arrangement and building heights showed different impacts on the outdoor thermal comfort streets with different orientations.",

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AU - Ahmadi Venhari, Armaghan

AU - Tenpierik, Martin

AU - Taleghani, Mohammad

N1 - Accepted Author Manuscript

PY - 2019

Y1 - 2019

N2 - The aim of this study was to understand the effect of urban street greenery type and arrangements on thermal comfort and heat stress in summer. Field measurements and computer simulations were carried out on East-West (E-W) and North-South (N-S) oriented streets in Isfahan, Iran. Through the field measurements in July 2014, 17 different streets were studied, followed by 15 perturbation scenarios (urban design alternatives) simulated by ENVI-met. The study showed that there is a significant and positive relationship between the Sky View Factor (SVF) and the Physiological Equivalent Temperature (PET) values. Comparison of the meteorological parameters within different street orientations showed that the effect of the SVF on the E-W streets was more significant than in N-S streets. Furthermore, greenery arrangement and building heights showed different impacts on the outdoor thermal comfort streets with different orientations.

AB - The aim of this study was to understand the effect of urban street greenery type and arrangements on thermal comfort and heat stress in summer. Field measurements and computer simulations were carried out on East-West (E-W) and North-South (N-S) oriented streets in Isfahan, Iran. Through the field measurements in July 2014, 17 different streets were studied, followed by 15 perturbation scenarios (urban design alternatives) simulated by ENVI-met. The study showed that there is a significant and positive relationship between the Sky View Factor (SVF) and the Physiological Equivalent Temperature (PET) values. Comparison of the meteorological parameters within different street orientations showed that the effect of the SVF on the E-W streets was more significant than in N-S streets. Furthermore, greenery arrangement and building heights showed different impacts on the outdoor thermal comfort streets with different orientations.

KW - Desert climate

KW - Heat stress

KW - Sky view factor

KW - Thermal comfort

KW - Urban greenery

KW - Urban streets

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JO - Journal of Arid Environments

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The role of sky view factor and urban street greenery in human thermal comfort and heat stress in a desert climate

Abstract

Bibliographical note

Keywords

Access to Document

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