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Title: Evaluation of road infrastructure projects : a life cycle sustainability-based decision-making approach
Authors: Arshad, H 
Thaheem, MJ
Bakhtawar, B 
Shrestha, A
Issue Date: Apr-2021
Source: Sustainability, 1 Apr. 2021, v. 13, no. 7, 3743
Abstract: Economic growth, social wellbeing, and infrastructure are strongly interrelated and jointly contribute to national development. Therefore, evaluation and selection of a road infrastructure project direly need a comprehensive sustainability assessment integrating holistic decision criteria. This study presents an elaborate life cycle sustainability-based project evaluation tool, comprising an assessment framework, an integration model, and a decision framework. In the first phase, a life cycle sustainability assessment (LCSA) framework for road infrastructure is established using mixed methods. In the second phase, interviews are conducted to obtain pairwise comparisons among impact categories and subjective reasoning of their priorities. Analytical hierarchy process (AHP) is adopted to develop the LCSA integration model. The minimum threshold limits of impact categories are evaluated and integrated into the proposed decision framework. Further, thematic and cross-sectional analyses are performed on the interview findings to rationalize the proposed decision framework. The findings include a detailed and customized project assessment framework, an integration model, and a decision framework for the assessment of different project alternatives. This study helps policy- and decision-makers in selecting the project alternative by maximizing sustainability in road infrastructure projects. Insights into environmental and social externalities and their quantitative interpretation throughout the life of the road are also achieved.
Keywords: Life cycle sustainability assessment
Road infrastructure
Project evaluation
Analytical hierarchy process
Publisher: Molecular Diversity Preservation International (MDPI)
Journal: Sustainability 
EISSN: 2071-1050
DOI: 10.3390/su13073743
Rights: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
The following publication Arshad, H.; Thaheem, M.J.; Bakhtawar, B.; Shrestha, A. Evaluation of Road Infrastructure Projects: A Life Cycle Sustainability-Based Decision-Making Approach. Sustainability 2021, 13, 3743 is available at
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