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dc.contributor.authorJiang, R.
dc.contributor.authorWu, Peng
dc.date.accessioned2021-10-06T06:26:32Z
dc.date.available2021-10-06T06:26:32Z
dc.date.issued2019
dc.identifier.citationJiang, R. and Wu, P. 2019. Estimation of environmental impacts of roads through life cycle assessment: A critical review and future directions. Transportation Research Part D: Transport and Environment. 77: pp. 148-163.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/85945
dc.identifier.doi10.1016/j.trd.2019.10.010
dc.description.abstract

Motivated by the lack of a systematic analysis of the use of life cycle assessment (LCA) to estimate the environmental impacts of roads, this study conducts a critical review to examine the methods, common practices, limitations, and underlying reasons, so that future directions can be recommended. In this work, 94 papers that adopt LCA methods to assess the environmental impacts over the whole life cycle of roads were analyzed. The results demonstrate that the process-based LCA remains the most commonly adopted LCA method; however, the hybrid LCA has been gradually recognized. After examining the goal and scope definition, life cycle inventory, life cycle impact assessment, and life cycle interpretation of these studies, it was found that the current LCA applications in roads face limitations owing to the inconsistent and inappropriate selection of the functional unit, limited consideration of the maintenance and repair, use, and end-of-life phases, limited reporting of data sources, lack of standardized impact assessment procedures, and lack of sensitivity and uncertainty analyses. These limitations can be attributed to the lack of a standardized LCA procedure for roads. There is also a lack of LCA studies focusing on network-level analysis, which may restrict the use of LCA to assist policy making in road planning and management. In addition, the time effect is rarely considered to reflect the dynamic changes of environmental impacts over the project life cycle. Therefore, future directions are recommended accordingly. Improvements in these areas are expected to generate more reliable LCA results for informed decision making.

dc.languageEnglish
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.subjectScience & Technology
dc.subjectLife Sciences & Biomedicine
dc.subjectTechnology
dc.subjectEnvironmental Studies
dc.subjectTransportation
dc.subjectTransportation Science & Technology
dc.subjectEnvironmental Sciences & Ecology
dc.subjectLife cycle assessment (LCA)
dc.subjectRoads
dc.subjectSustainable development
dc.subjectGreen infrastructure
dc.subjectGREENHOUSE-GAS EMISSIONS
dc.subjectWARM MIX ASPHALT
dc.subjectRECYCLED MATERIALS
dc.subjectRECLAIMED ASPHALT
dc.subjectCONSTRUCTION MATERIALS
dc.subjectPAVEMENT CONSTRUCTION
dc.subjectBY-PRODUCTS
dc.subjectBOTTOM ASH
dc.subjectLCA
dc.subjectMANAGEMENT
dc.titleEstimation of environmental impacts of roads through life cycle assessment: A critical review and future directions
dc.typeJournal Article
dcterms.source.volume77
dcterms.source.startPage148
dcterms.source.endPage163
dcterms.source.issn1361-9209
dcterms.source.titleTransportation Research Part D: Transport and Environment
dc.date.updated2021-10-06T06:26:31Z
curtin.departmentSchool of Design and the Built Environment
curtin.accessStatusIn process
curtin.facultyFaculty of Humanities
curtin.contributor.orcidWu, Peng [0000-0002-3793-0653]
curtin.contributor.scopusauthoridWu, Peng [55175462200]


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