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The viability of permeable pavements in the construction of new subdivisions

Curry, Paul (2016). The viability of permeable pavements in the construction of new subdivisions. Bachelor of Engineering (4th Year Project) Thesis, Charles Darwin University.

Document type: Thesis
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Author Curry, Paul
Title The viability of permeable pavements in the construction of new subdivisions
Institution Charles Darwin University
Publication Date 2016-10
Thesis Type Bachelor of Engineering (4th Year Project)
Supervisor Wolff, R.
Prathapan, Sabaratnam
Abstract Typically, the pavement used in today’s world is non-permeable in nature due to the fact that water is seen as detrimental to the long term stability of the pavement. With the ever increasing need to provide sustainable solutions to traditional problems there has been a growing acceptance of the use of permeable pavements as a way of disposing of stormwater at the location it has fallen. Water Sensitive Urban Design (WSUD) has become integrated, and in some locations mandated, into the design of new subdivisions. The popular methods of incorporating WSUD into the new subdivisions in Melbourne, Australia have so far included: - Urban trees, rainwater harvesting, bio-swales, constructed wetlands and raingardens. Up to this point there has not been any use of permeable pavement as a WSUD measure.

This work establishes whether the use of permeable pavement is a viable option in the construction of new subdivisions in the Greater Melbourne area. It concentrates on the installation of the pavement in public car parking areas. The various types of permeable pavement were analysed for their suitability, cost of installation and upkeep and permeable interlocking concrete pavers were selected as the most suitable pavement type for further analysis. A cost benefit analysis was conducted that compared the construction and maintenance of both PICP and a traditional asphalt pavement.

The results of the CBA showed that there were positive financial benefits to installing a PICP system in the place of asphalt. The benefit was however small and due to the variability of the parameters of the study it was concluded that permeable pavement should be considered a cost neutral alternative with the added environmental benefits that are associated with water sustainable urban design. It has been shown that cost is not a barrier to the use of PICP and that greater consideration needs to be given to their inclusion in the design of new subdivisions.
Keyword Cost Benefit Analysis (CBA)
Permeable Interlocking Concrete Pavers (PICP)
Permeable Pavement
Water Sensitive Urban Design (WSUD)

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