Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17847
Title: A simple method for designation of urban ventilation corridors and its application to urban heat island analysis
Authors: Wong, MS 
Nichol, JE 
To, PH
Wang, J
Keywords: Frontal area index
Geographic information systems
Remote sensing
Urban heat island
Ventilation path
Issue Date: 2010
Publisher: Pergamon Press
Source: Building and environment, 2010, v. 45, no. 8, p. 1880-1889 How to cite?
Journal: Building and environment 
Abstract: This paper describes urban wind ventilation mapping, using the concept of "building frontal area index", and uses the Kowloon peninsula of Hong Kong as an example of a dense, sub-tropical urban environment where ventilation is critical for human health. The frontal area index is calculated for uniform 100 m grid cells, based on three dimensional buildings in each cell, for eight different wind directions. The frontal area index is then correlated with a land use map, and the results indicate that high density commercial and industrial areas with large building footprints had higher values than other urban land use types. Using the map of frontal area index, the main ventilation pathways across the urban area are located using least cost path analysis in a raster GIS. Field measurements of urban winds confirmed the significance and functionality of these modelled ventilation paths. Comparison of the pathways with a map of the urban heat island suggests that ventilation is a key parameter in mitigating heat island formation in the study area. Planning and environmental authorities may use the derived frontal area index and ventilation maps as objective measures of environmental quality within a city, especially when temperatures in the inner city are a major concern.
URI: http://hdl.handle.net/10397/17847
ISSN: 0360-1323
EISSN: 1873-684X
DOI: 10.1016/j.buildenv.2010.02.019
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

47
Last Week
0
Last month
3
Citations as of Oct 8, 2017

WEB OF SCIENCETM
Citations

42
Last Week
0
Last month
2
Citations as of Oct 15, 2017

Page view(s)

49
Last Week
2
Last month
Checked on Oct 15, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.