To read the full version of this content please select one of the options below:

Optimization of the shading efficiency in the urban spaces in hot arid climate regions

Wael A. Khudhayer (School of Civil Engineering, Universiti Sains Malaysia Engineering Campus, Nibong Tebal, Malaysia) (Department of Architecture and Interior Design, College of Engineering and Architecture, University of Nizwa, Nizwa, Oman)
Awni K. Shaaban (Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman)
Nur Sabahiah Abdul Sukor (School of Civil Engineering, Universiti Sains Malaysia Engineering Campus, Nibong Tebal, Malaysia)

Archnet-IJAR

ISSN: 2631-6862

Article publication date: 2 May 2019

Issue publication date: 12 July 2019

Abstract

Purpose

The contemporary urban fabrics in hot climate regions have overextended urban spaces that face problems of high heat stress due to intense solar radiation and air temperature and that cause the pedestrians to abandon the urban spaces due to thermal discomfort. This work introduced the shading effects as one of the prime factors that contribute to restore thermal comfort and attract pedestrian activities. The purpose of this paper is to identify the proportional limits of the urban space to maintain feasible shades for pedestrian activities.

Design/methodology/approach

The urban space abstracted into a floor surrounded by four walls was then classified into four typologies. The assessment tool was developed to calculate the shading efficiency at the floor level of urban space. The width and the length of the floor equally was expanded in the range (0.5/0.5 to 4.0/4.0). The average shading efficiency of the expanded typologies was calculated along three intervals (Morning, midday and afternoon). The results were then analyzed, and critical guidelines were established that could be utilized in the design of the futuristic urban space and provide amendments to the existing urban space.

Findings

The paper concluded that the performance of urban spaces was not due to the accumulative performances of all walls but rather due to the combination specific effective walls in response to the interactive variations shading patterns concerning daily pedestrian activities. Any large shallow urban space could be segmented into multiples of the recommended typologies by a vertical landscape.

Originality/value

It is the first study that identified the expansion limit of the urban space that maintains feasible shades for the pedestrian. A further value of this study is establishing guidelines to the urban designers for the effective configurations of the urban space in terms of shading. These guidelines could be utilized in the design of the futuristic urban space and provide amendments to the existing urban space.

Keywords

Acknowledgements

The authors gratefully acknowledge the support of Ministry of Higher Education, Malaysia for supporting the paper under the research grant TRGS 203/PAWAM/67610002. The authors also indebted to the College of Engineering, Sultan Qaboos University and College of engineering and architecture, University of Nizwa, Sultanate of Oman for providing laboratory and computer facility to carry out this work.

Citation

Khudhayer, W.A., Shaaban, A.K. and Abdul Sukor, N.S. (2019), "Optimization of the shading efficiency in the urban spaces in hot arid climate regions", Archnet-IJAR, Vol. 13 No. 2, pp. 444-458. https://doi.org/10.1108/ARCH-12-2018-0038

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited