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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Analysis of the microclimatic and human comfort conditions in an urban park in hot and arid regions
Building and Environment, Volume 46, No. 12, Year 2011
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Description
Urban parks have complex surface structure that produces an environment with specific microclimatic qualities. These qualities affect the balance of energy of the human body and are applicable to an individual's thermal perception. They have impacts on using outdoor spaces especially in hot and arid regions. This study investigates users' thermal comfort in an urban park in Cairo, Egypt. The investigation was carried out during the hot and cold months using subjective surveys and field measurements. The campaign consisted of a subjective survey using questions on the perception of the thermal environmental applying seven-point ASHRAE 55 thermal sensation votes (TSV) in nine different zones in the urban park. At each zone, the thermal environment parameters - air temperature, solar radiation, air relative humidity and wind speed were measured. Through these data, the values of the Physiologically Equivalent Temperature (PET) were calculated in each zone using the RayMan model. The current people clothing and metabolic rate were recorded. The results of the field measurements were compared with judgements about the thermal environment. Results demonstrate that differences in the PET index among these zones due to different sky view factors (SVF) and wind speed. Results revealed an alteration in human comfort sensation between different landscape zones. This paper suggests that the thermal requirements of visitors and qualities of the local climate should be carefully considered when designing landscapes for the future urban parks in the hot and arid regions. © 2011 Elsevier Ltd.
Authors & Co-Authors
Mahmoud, Ayman H.
Egypt, Cairo
Faculty of Engineering
Egypt, El Shorouk
The British University in Egypt
Statistics
Citations: 242
Authors: 1
Affiliations: 2
Identifiers
Doi:
10.1016/j.buildenv.2011.06.025
ISSN:
03601323
Research Areas
Cancer
Environmental
Noncommunicable Diseases
Study Design
Cross Sectional Study
Study Approach
Quantitative
Study Locations
Egypt