Sustainability outcomes of infrastructure sustainability rating schemes for road projects

Alam, Shafiqul & Kumar, Arun (2013) Sustainability outcomes of infrastructure sustainability rating schemes for road projects. In Australasian Transport Research Forum 2013 Proceedings, The Department of Infrastructure and Regional Development, Queensland University of Technology, Brisbane, QLD, pp. 1-9.

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The construction and operation of infrastructure assets can have significant impact on society and the region. Using a sustainability assessment framework can be an effective means to build sustainability aspects into the design, construction and operation of infrastructure assets. The conventional evaluation processes and procedures for infrastructure projects do not necessarily measure the qualitative/quantitative effectiveness of all aspects of sustainability: environment, social wellbeing and economy. As a result, a few infrastructure sustainability rating schemes have been developed with a view to assess the level of sustainability attained in the infrastructure projects. These include: Infrastructure Sustainability (Australia); CEEQUAL (UK); and Envision (USA). In addition, road sector specific sustainability rating schemes such as Greenroads (USA) and Invest (Australia) have also been developed. These schemes address several aspects of sustainability with varying emphasis (weightings) on areas such as: use of resources; emission, pollution and waste; ecology; people and place; management and governance; and innovation. The attainment of sustainability of an infrastructure project depends largely on addressing the whole-of-life environmental issues.

This study has analysed the rating schemes’ coverage of different environmental components for the road infrastructure under the five phases of a project: material, construction, use, maintenance and end-of-life. This is based on a comprehensive life cycle assessment (LCA) system boundary. The findings indicate that there is a need for the schemes to consider key (high impact) life cycle environmental components such as traffic congestion during construction, rolling resistance due to surface roughness and structural stiffness of the pavement, albedo, lighting, and end-of-life management (recycling) to deliver sustainable road projects.

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ID Code: 71695
Item Type: Conference Paper
Refereed: Yes
Keywords: Road Infrastructure, Sustainability, Rating Scheme, Environment, Life Cycle Analysis (LCA), Life Cycle Environmental Component (LCEC)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 please consult author(s)
Deposited On: 15 May 2014 22:58
Last Modified: 13 Apr 2015 04:58

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