Critical review and methodological issues in integrated life-cycle analysis on road networks
MetadataShow full item record
© 2018 Elsevier Ltd 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 address: inconsistencies in cost attribute selection; adjusting for uncertainties and costs; clarifying system boundaries; data sources; functional units and regional or temporal applicability of life-cycle frameworks. The current study focuses on a critical literature review of life-cycle cost analysis (LCCA) and life-cycle assessment (LCA) research published in the last decade (post 2008) towards identification of research gaps. Accurately analysing all life-cycle stages, feedback loops, future cash and resource flows, and interlinking performance with overall sustainability can aid the decision-making process towards sustainable alternatives for constructing new, or rehabilitating existing roads. This review finds that the use of recycled materials, base/sub-base stabilisers and asphalt binder replacement has the potential of energy saving (=34% or 3.1 TJ), mitigating landfill disposal issues, and greenhouse gas load reduction (=34.5% CDE). Lack of real world LCCA-LCA application and stakeholder prejudice against recycled material usage are addressable by better stakeholder (decision-makers and road users) engagement via a social component. The proposed enhancements identified in this study can increase LCA/LCCA attraction to policy-makers, planners and users and ultimately ensure a more sustainable asset.
Showing items related by title, author, creator and subject.
Malik, Shariful; Whyte, Andrew (2012)Infrastructural development is time consuming and costly, especially for highways in rugged mountainous terrains. Factors known to cause road blockage and damage in mountain regions include: flooding, mountainous debris, ...
Whyte, Andrew; Gayner, L. (2013)Life-cycle cost analysis (LCCA) is an engineering tool to assist design specification decisionmaking, estimate whole-life cost of civil engineering projects and help clarify sustainable choices. This paper investigates ...
Xing, K.; Qian, W.; Zaman, Atiq (2016)© 2016Managing life-cycle information presents a critical challenge for footprint assessment and performance measurement in supply chains. Extant literature and supply chain collaboration models fall short in providing ...