Life-Cycle Cost Analysis: State of the Practice Versus State of the Art

Özbay, Kaan; Jawad, Dima; Parker, Neville; Hussain, Sajjad

doi:10.3141/1864-09

Cited by 57 publications

(49 citation statements)

References 4 publications

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“…A value of time is then applied to that delay, thus generating a user cost estimate. This is the most commonly practiced method of user cost evaluation amongst state DOTs [40]. However, by focusing exclusively on traffic delay, externalities such as noise, safety, standard operation fuel consumption, and vehicle wear are neglected, making this an incomplete assessment of the actual user costs.…”

Section: Pavement Lca Modelsmentioning

confidence: 99%

Life Cycle Assessment of Pavements: A Critical Review of Existing Literature and Research

Santero¹,

Masanet²,

Horvath³

2010

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This report provides a critical review of existing literature and modeling tools related to lifecycle assessment (LCA) applied to pavements. The review finds that pavement LCA is an expanding but still limited research topic in the literature, and that the existing body of work exhibits methodological deficiencies and incompatibilities that serve as barriers to the widespread utilization of LCA by pavement engineers and policy makers. This review identifies five key issues in the current body of work: inconsistent functional units, improper system boundaries, imbalanced data for asphalt and cement, use of limited inventory and impact assessment categories, and poor overall utility. This review also identifies common data and modeling gaps in pavement LCAs that should be addressed in future work. These gaps include: the use phase (rolling resistance, albedo, carbonation, lighting, leachate, and tire wear and emissions), asphalt fumes, feedstock energy of bitumen, traffic delay, the maintenance phase, and the end-of-life phase. This review concludes with a comprehensive list of recommendations for future research, which shed light on where improvements in knowledge can be made that will benefit the accuracy and comprehensiveness of pavement LCAs moving forward.

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Section: Pavement Lca Modelsmentioning

confidence: 99%

Life Cycle Assessment of Pavements: A Critical Review of Existing Literature and Research

Santero¹,

Masanet²,

Horvath³

2010

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“…Second, life cycle cost analysis (LCCA), which is widely used by road agencies, represents a suitable framework for integration of sustainability concerns in pavement management (Ozbay et al 2004). …”

Section: Introductionmentioning

confidence: 99%

Influence of Pavement Condition on Environmental Costs

2014

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Pavement conditions significantly influence the generation of nuisances that influence the environment and induces costs borne by society. This paper presents a new tool designed to monetize and incorporate environmental impacts in decision-making processes. The Pavement Environmental Impact Model (PEIM) is the first attempt to adapt the Impact Pathway Approach (IPA) to assess the emission, dispersion, and impacts of noise, air pollution, and greenhouse gases so that environmental impacts can be included in the economic model of pavement management units. Results of a simulation performed with PEIM for an urban collector road with an annual average daily traffic of 10,000 vehicles per day and a linear density of 240 people per kilometer show that, within the assumptions/limitations of PEIM, environmental costs were expected to range from 876,000 to 1,983,000 Canadian dollars per kilometer per year for pavement roughness ranging from 1 to 4 m/km. Moreover, although noise cost is consistently disregarded in pavement management, it was expected to represent 54% of the total environmental cost when pavement roughness was above 1.75 m/km. Results demonstrate that PEIM is a suitable tool to roughly estimate environmental costs and to help pavement management units choose the optimal alternative of management.

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“…In the Final Policy Statement published in 1996, the stance of FHWA regarding LCCA was further explained, identifying LCCA as a helpful tool for decision makers. Ozbay et al [43] stated that LCCA application would surely increase if the public and policy makers demanded better resource management.…”

Section: Life-cycle Cost Analysis (Lcca)mentioning

confidence: 99%

Sustainable Development Factors in Pavement Life-Cycle: Highway/Airport Review

et al. 2016

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Sustainability has gained as much importance as management in business. Sustainable pavement development as a business practice should involve making evaluations according to the triple bottom line in the pavement life-cycle. Despite the current approaches to evaluating the social as well as economic and environmental feasibility of pavement projects (involving highway and airport infrastructure), there has recently been a lack of consensus on a methodology to guarantee sustainability upon assessment and analysis during the pavement life-cycle. As sustainability is a complex issue, this study intends to further explore sustainability and elaborate on its meaning. The second step involves a general depiction of the major sustainability appraisal tools, namely cost-benefit analysis, life-cycle cost analysis, life-cycle assessment, multi-criteria decision-making, environmental impact assessment and social life-cycle assessment, and an explanation of their cons and pros. Subsequently, the article addresses the application of an organized methodology to highlight the main factors or concepts that should be applied in sustainable pavement development and, more specifically, in sustainable pavement management. In the final step, research recommendations toward sustainability are given. This study is aimed to assist decision-makers in pavement management to plan sustainability frameworks in accordance with probable boundaries and restrictions.

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Life-Cycle Cost Analysis: State of the Practice Versus State of the Art

Cited by 57 publications

References 4 publications

Life Cycle Assessment of Pavements: A Critical Review of Existing Literature and Research

Life Cycle Assessment of Pavements: A Critical Review of Existing Literature and Research

Influence of Pavement Condition on Environmental Costs

Sustainable Development Factors in Pavement Life-Cycle: Highway/Airport Review

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