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    Life-Cycle Cost Analysis for Infrastructure/Pavement Design

    Access Status
    Fulltext not available
    Authors
    Whyte, Andrew
    Pham, Anna
    Date
    2012
    Type
    Conference Paper
    
    Metadata
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    Citation
    Whyte, Andrew and Pham, Anna. 2012. Life-Cycle Cost Analysis for Infrastructure/Pavement Design, in The Australasian Structural Engineering Conference 2012 (ASEC 2012), Jul 11-13 2012. Perth, Western Australia: Engineers Australia.
    Source Title
    Proceedings of the Australasian Structural Engineering Conference 2012 (ASEC 2012)
    Source Conference
    The Australasian Structural Engineering Conference 2012 (ASEC 2012)
    URI
    http://hdl.handle.net/20.500.11937/10553
    Collection
    • Curtin Research Publications
    Abstract

    Asset management and decision-support tools at the planning phase and throughout the life-cycle ofcivil infrastructure projects are essential for stakeholders charged with the determination of costeffectivedesign-solutions over an asset’s useful life. The need for a life-cycle cost analysis (LCCA) to guide economic decision-making when comparing competing alternatives is explored by casestudy that juxtaposes the pavement design options of: concrete; and, asphalt. Discussion below outlines briefly the processes involved in developing a new infrastructure LCCA model. Specific design alternatives of: continually reinforced concrete pavement (CRCP); and, thin asphalt surfaced unbound granular pavement (AC) were input for direct whole-life cost comparison. Using life-span periods of 30, 60 and 100 years, with a discount rate calculated at 8%, (incorporating sensitivity analyses) the findings suggest that the asphalt pavement alternative is the cheapest in all cases, with a clearance of up to 34%. Overall, the outcomes of this project validate and vindicate the need for an LCCA for infrastructure projects, while specifically recommending that an asphalt pavement is a cheaper alternative than a concrete pavement in this particular environments locally.

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      Life-cycle management of road network projects traditionally emphasise material production and construction stages, with less attention given to usage stage and functionality improvement. Increasingly there is a need to ...
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