Evaluation of Road Infrastructure Projects: A Life Cycle Sustainability-Based Decision-Making Approach

The goals of sustainable development are constantly negatively impacted by infrastructure initiatives. The importance of these projects in advancing the economic, social, and civilizational growth of the country will, however, prevent their construction from being stopped. The overall construction of the project is related to the scientific and unbiased assessment of an infrastructure project’s sustainability throughout the decision-making stage. Based on the references documents, this paper establishes an index system for evaluating an infrastructure project’s sustainability from three aspects: environment, economy, and society. In the assessment process, the cloud model was used to describe the various attribute values of infrastructure project sustainability, which achieved the uncertainty measures for infrastructure project sustainability, and a cloud model-based assessment method for infrastructure project sustainability was proposed by modifying the attribute value by the penalty factor. Finally, an assessment method for infrastructure project sustainability based on the cloud model was proposed after the attribute values were modified by using a continuous interval argument ordered weighted average (C-OWA) operator. The model carries out an overall sustainability assessment by generating a synthesized cloud with the weight to calculate the similarity of assessment factors, which takes the randomness, fuzziness, and uncertainty of expert qualitative assessment into account, and uses the analytic hierarchy process (AHP) method and the C-OWA operator to determine the weight of the sustainable index and the aggregation of the expert scoring interval. A case study was conducted to clarify how this strategy was applied. The study provides a valuable and useful tool for the operational stage to assess the achievability of municipal infrastructure projects.

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“…[38,49] Economy Life cycle profits Profits of the entire life cycle of municipal infrastructure projects. [32,50,51] Payback period…”

Section: Biodiversitymentioning

confidence: 99%

Sustainability Assessment of Municipal Infrastructure Projects Based on Continuous Interval Argumentation Ordered Weighted Average (C-OWA) and Cloud Models

et al. 2023

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“…For the development of methodology, multiple relevant studies surrounding the integration of risk and sustainability were considered [9,12,19,[48][49][50]. In the developed approach, expert opinion has also been taken into account through a rigorous survey of experts, which conforms with the multi-criteria decision-making approach (MCDM) used for triple-bottom-line sustainability assessment in projects [51]. The approach can be used in the early decision stages of the project life of complex projects like P3 which are based on long-term contracts.…”

Section: Integrating Risk and Sustainability For P3 Deliverymentioning

confidence: 99%

“…Notably, the life-cycle cost has a maximum number of risks acting on it but is ranked lower than human health. This is due to the often-predictable nature of cost impacts with well-defined mitigations [51]. For social sustainability, the socio-economic repercussions indicator has the highest value of the risk index.…”

Section: Modeling and Simulationmentioning

confidence: 99%

A Sustainability-Based Risk Assessment for P3 Projects Using a Simulation Approach

et al. 2021

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Integrating sustainability in the risk management process is an emergent problem, especially for efficient infrastructure delivery. For the case of complex projects like public–private partnerships (P3), traditional management practices offer a limited capacity to address long-ranging risk impacts on the social, economic, and environmental fabric within and around the project boundaries. Although P3 projects are objective-based contracts, present risk models rarely delineate risk impacts on focused project objectives. The relevant studies are very scarce creating a limited understanding of available approaches to conducting sustainability-based risk management for P3 projects. As risk and sustainability are two inherently subjective concepts with multiple interpretations, their combined assessment within a single framework demands a pragmatic approach. Therefore, the current study presents a model for conducting a sustainability-based risk assessment of P3 infrastructure projects through global data. Monte Carlo simulation is employed to further define the probabilistic risk ranges and risk ranks over relevant triple-bottom-line-based sustainability indicators for highway sector P3 projects. Findings are further demonstrated through two highway case studies and relevant mitigation strategies are also suggested. In the end, an implementation framework and future recommendations for the application of study findings on actual projects are also suggested. The study has useful implications for practitioners and researchers alike aiming for the delivery of sustainable complex projects.

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“…Janjua et al [8] compared two residential buildings in Australia, based on LCSA, by evaluating six sustainability categories, i.e., greenhouse gases, embodied energy, cost, gross benefit, working conditions and equal opportunity. In integrating the three pillars and trying to select the best option, the multi-attribute decision making (MADM) method has been adopted in the LCSA of buildings and construction [9,10]. Recently, LCSA has also been combined with building information modeling (BIM).…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Sustainability Assessment of Building Construction: A Case Study in China

Dong,

Liu,

Hossain

2023

Sustainability

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Life cycle sustainability assessment (LCSA) has been increasingly implemented in a wide spectrum of products. Considering the vital importance of buildings to human lives, it is surprising that there have been few LCSA case studies of buildings from mainland China, which boasts the largest developing economy in the world. This study aims to implement LCSA in a typical residential building project in China. The three areas of protections (AoPs) are integrated into an overarching LCSA framework by applying the analytic hierarchy process (AHP) method. It is found that the building project has less impacts of climate change, acidification and human toxicity, but greater impacts of ozone depletion and freshwater eutrophication, as compared to benchmarks of buildings. The sustainability single score is estimated to be 71.5/100, with 40.86% caused by the environmental impact, 29.68% by the economic impact and 29.46% by the social impact. The sustainability results of the studied case are further compared with an existing study in Hong Kong. The results would contribute to the knowledge and understanding of the sustainability performance of buildings in China. The methodology presented in this study can contribute to further improvements in LCSA evaluation, both regionally and globally.

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Evaluation of Road Infrastructure Projects: A Life Cycle Sustainability-Based Decision-Making Approach

Cited by 21 publications

References 89 publications

Sustainability Assessment of Municipal Infrastructure Projects Based on Continuous Interval Argumentation Ordered Weighted Average (C-OWA) and Cloud Models

Sustainability Assessment of Municipal Infrastructure Projects Based on Continuous Interval Argumentation Ordered Weighted Average (C-OWA) and Cloud Models

A Sustainability-Based Risk Assessment for P3 Projects Using a Simulation Approach

Life Cycle Sustainability Assessment of Building Construction: A Case Study in China

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