Reliability Evaluation of Pavement Life-Cycle Assessment Model
Inventory reliability of the life-cycle assessment (LCA) model highly depends on the data quality and normally exhibits significant uncertainty. A rigorous statistical methodology was established to capture and quantify the inherent uncertainties linked to the results of the LCA model. Two sources o...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/4172519 |
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| _version_ | 1832549340476866560 |
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| author | Jiale Huang Fei Xiao Yang Zhang |
| author_facet | Jiale Huang Fei Xiao Yang Zhang |
| author_sort | Jiale Huang |
| collection | DOAJ |
| description | Inventory reliability of the life-cycle assessment (LCA) model highly depends on the data quality and normally exhibits significant uncertainty. A rigorous statistical methodology was established to capture and quantify the inherent uncertainties linked to the results of the LCA model. Two sources of uncertainty, data quality and model, were identified. The former was captured by converting the deterministic value to probability density function using beta distribution according to the evaluation matrix of data quality; the latter was assessed by prescribing variation interval through defining uncertainty factor. The functional equivalent pavement structures were designed, and the corresponding energy consumption and CO2 emission were calculated by the LCA model. A 10% variation was observed for the LCA results and within 30-year analysis span, at the 95% confidence level, and environmental burdens of cement pavement are higher than those of asphalt pavements while the comparison between the two asphalt pavements is not significant statistically. Therefore, the established statistical methodology is capable of capturing the uncertainty of the LCA model and quantifying the reliability the LCA results. |
| format | Article |
| id | doaj-art-e7769ee35ef34881a62ceccda80187fb |
| institution | Kabale University |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-e7769ee35ef34881a62ceccda80187fb2025-02-03T06:11:35ZengWileyModelling and Simulation in Engineering1687-55911687-56052018-01-01201810.1155/2018/41725194172519Reliability Evaluation of Pavement Life-Cycle Assessment ModelJiale Huang0Fei Xiao1Yang Zhang2School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, ChinaJiangsu Research Institute of Building Science Co. Ltd, Nanjing 210008, ChinaJiangsu Research Institute of Building Science Co. Ltd, Nanjing 210008, ChinaInventory reliability of the life-cycle assessment (LCA) model highly depends on the data quality and normally exhibits significant uncertainty. A rigorous statistical methodology was established to capture and quantify the inherent uncertainties linked to the results of the LCA model. Two sources of uncertainty, data quality and model, were identified. The former was captured by converting the deterministic value to probability density function using beta distribution according to the evaluation matrix of data quality; the latter was assessed by prescribing variation interval through defining uncertainty factor. The functional equivalent pavement structures were designed, and the corresponding energy consumption and CO2 emission were calculated by the LCA model. A 10% variation was observed for the LCA results and within 30-year analysis span, at the 95% confidence level, and environmental burdens of cement pavement are higher than those of asphalt pavements while the comparison between the two asphalt pavements is not significant statistically. Therefore, the established statistical methodology is capable of capturing the uncertainty of the LCA model and quantifying the reliability the LCA results.http://dx.doi.org/10.1155/2018/4172519 |
| spellingShingle | Jiale Huang Fei Xiao Yang Zhang Reliability Evaluation of Pavement Life-Cycle Assessment Model Modelling and Simulation in Engineering |
| title | Reliability Evaluation of Pavement Life-Cycle Assessment Model |
| title_full | Reliability Evaluation of Pavement Life-Cycle Assessment Model |
| title_fullStr | Reliability Evaluation of Pavement Life-Cycle Assessment Model |
| title_full_unstemmed | Reliability Evaluation of Pavement Life-Cycle Assessment Model |
| title_short | Reliability Evaluation of Pavement Life-Cycle Assessment Model |
| title_sort | reliability evaluation of pavement life cycle assessment model |
| url | http://dx.doi.org/10.1155/2018/4172519 |
| work_keys_str_mv | AT jialehuang reliabilityevaluationofpavementlifecycleassessmentmodel AT feixiao reliabilityevaluationofpavementlifecycleassessmentmodel AT yangzhang reliabilityevaluationofpavementlifecycleassessmentmodel |