A study of building height and plot ratio restrictions in densifying cities using 3D spatial analysis technology: A case study of the City of Parramatta

Christensen, PH; Guo, J

A study of building height and plot ratio restrictions in densifying cities using 3D spatial analysis technology: A case study of the City of Parramatta

Christensen, PH

Guo, J

Permalink

Publication Type:: Conference Proceeding
Citation:: 2017
Issue Date:: 2017-01-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Microsoft Word XML

Download Accepted Manuscript versionMicrosoft Word XML (2.56 MB)

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Christensen, PH https://orcid.org/0000-0002-1676-8570	en_US
dc.contributor.author	Guo, J	en_US
dc.date	2017-01-15	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	2017	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118917
dc.description.abstract	As urban areas continue to grow globally they face enormous challenges in terms of land supply. The City of Parramatta has been identified as a major growth area for the Sydney Metropolitan area. With a current population forecast for 2016 of 236,272, the City is forecast to grow to 397,339 by 2036, a 68.17% increase over 20 years (Forecast.id, 2016). Over the past 50 years, the City of Parramatta has seen a 72% increase of hot days (over 35 oC), increasing from 7.4 days in 1967 to 12.7 days in 2015. Temperature impacts are therefore a significant planning factor that must be considered when evaluating future redevelopment proposals for the Parramatta CBD area. This study uses 3D GIS to simulate the impacts of various development densities on temperature and to demonstrate how the use of 3D technology can assist planners and developers in making better informed decisions. Three scenarios with different plot ratios and building heights were digitally simulated in the Parramatta Square mixed-use redevelopment area and compared to understand the urban heat implications of each scenario. Because the insolation factor (a measure of the solar radiation that reaches the earth's surface, measured by the amount of solar energy received per square centimetre per minute) can only be calculated using 3D models, this research offers an innovative approach to understanding how various redevelopment scenarios will impact the urban temperature of the area. Preliminary findings indicate that when the plot ratio and building height are increased, less ground area experiences long-hour sunlight exposure. Simultaneously, the percentage of the total area exposed to long-hour sunlight was decreased sharply. For urban areas experiencing severe heat and increased population growth, perhaps a re-evaluation of development patterns may help address some of the associated impacts.	en_US
dc.relation.ispartof	Pacific Rim Real Estate Society Annual Meeting	en_US
dc.title	A study of building height and plot ratio restrictions in densifying cities using 3D spatial analysis technology: A case study of the City of Parramatta	en_US
dc.type	Conference Proceeding
utslib.location.activity	Sydney, Australia	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Design, Architecture and Building
pubs.organisational-group	/University of Technology Sydney/Faculty of Design, Architecture and Building/School of Built Environment
utslib.copyright.status	open_access
pubs.consider-herdc	false	en_US
pubs.finish-date	2017-01-18	en_US
pubs.start-date	2017-01-15	en_US

Abstract:

As urban areas continue to grow globally they face enormous challenges in terms of land supply. The City of Parramatta has been identified as a major growth area for the Sydney Metropolitan area. With a current population forecast for 2016 of 236,272, the City is forecast to grow to 397,339 by 2036, a 68.17% increase over 20 years (Forecast.id, 2016). Over the past 50 years, the City of Parramatta has seen a 72% increase of hot days (over 35 oC), increasing from 7.4 days in 1967 to 12.7 days in 2015. Temperature impacts are therefore a significant planning factor that must be considered when evaluating future redevelopment proposals for the Parramatta CBD area. This study uses 3D GIS to simulate the impacts of various development densities on temperature and to demonstrate how the use of 3D technology can assist planners and developers in making better informed decisions. Three scenarios with different plot ratios and building heights were digitally simulated in the Parramatta Square mixed-use redevelopment area and compared to understand the urban heat implications of each scenario. Because the insolation factor (a measure of the solar radiation that reaches the earth's surface, measured by the amount of solar energy received per square centimetre per minute) can only be calculated using 3D models, this research offers an innovative approach to understanding how various redevelopment scenarios will impact the urban temperature of the area. Preliminary findings indicate that when the plot ratio and building height are increased, less ground area experiences long-hour sunlight exposure. Simultaneously, the percentage of the total area exposed to long-hour sunlight was decreased sharply. For urban areas experiencing severe heat and increased population growth, perhaps a re-evaluation of development patterns may help address some of the associated impacts.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/118917