A parsimonious framework of evaluating WSUD features in urban flood mitigation
In this study, a parsimonious framework for supporting Water Sensitive Urban Design (WSUD) was proposed to seek a tradeoff between investment of WSUD features and mitigation of urban flood damage. A two-dimensional (2D) hydrological-hydraulic simulation model, PCSWMM, was adopted to simulate the rai...
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| 其他作者: | |
| 格式: | Journal Article |
| 语言: | English |
| 出版: |
2019
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| 主题: | |
| 在线阅读: | https://hdl.handle.net/10356/86097 http://hdl.handle.net/10220/49264 |
| _version_ | 1826113150467964928 |
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| author | Lu, W. Jun, Changhyun Qin, Xiao Sheng |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Lu, W. Jun, Changhyun Qin, Xiao Sheng |
| author_sort | Lu, W. |
| collection | NTU |
| description | In this study, a parsimonious framework for supporting Water Sensitive Urban Design (WSUD) was proposed to seek a tradeoff between investment of WSUD features and mitigation of urban flood damage. A two-dimensional (2D) hydrological-hydraulic simulation model, PCSWMM, was adopted to simulate the rainfall-runoff process and inundation scenarios, and the flood damages was evaluated based on inundated water depths and damage curves. The sensitivity of deploying various design features to flood control effects was also tested, which provided useful information for identifying potential design parameters (like conduit sizes and pond locations). The proposed framework was applied to a hypothetical case adapted from an urban district in the tropical region considering various WSUD features (i.e. rainwater storage pond, rain garden, and conduit upgrading). The results showed that when the gross investment of WSUD features increased from 0 to 1.19 million $, the damage cost would decrease from 4.61 to 3.41 million $; a linear relationship (with a R-square fit at 0.9) was found suitable to represent the relationship between the investment and the damage. The proposed framework is effective in helping assess the balance between mitigation of urban flood damage and adoption of WSUD features, and could be used to support urban water managers for a more science-based decision making towards flood risk management. |
| first_indexed | 2024-10-01T03:18:29Z |
| format | Journal Article |
| id | ntu-10356/86097 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:18:29Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/860972020-03-07T11:43:30Z A parsimonious framework of evaluating WSUD features in urban flood mitigation Lu, W. Jun, Changhyun Qin, Xiao Sheng School of Civil and Environmental Engineering Environmental Process Modeling Centre Nanyang Environment and Water Research Institute Water Sensitivity Urban Design Urban Flood Damage Engineering::Environmental engineering In this study, a parsimonious framework for supporting Water Sensitive Urban Design (WSUD) was proposed to seek a tradeoff between investment of WSUD features and mitigation of urban flood damage. A two-dimensional (2D) hydrological-hydraulic simulation model, PCSWMM, was adopted to simulate the rainfall-runoff process and inundation scenarios, and the flood damages was evaluated based on inundated water depths and damage curves. The sensitivity of deploying various design features to flood control effects was also tested, which provided useful information for identifying potential design parameters (like conduit sizes and pond locations). The proposed framework was applied to a hypothetical case adapted from an urban district in the tropical region considering various WSUD features (i.e. rainwater storage pond, rain garden, and conduit upgrading). The results showed that when the gross investment of WSUD features increased from 0 to 1.19 million $, the damage cost would decrease from 4.61 to 3.41 million $; a linear relationship (with a R-square fit at 0.9) was found suitable to represent the relationship between the investment and the damage. The proposed framework is effective in helping assess the balance between mitigation of urban flood damage and adoption of WSUD features, and could be used to support urban water managers for a more science-based decision making towards flood risk management. MOE (Min. of Education, S’pore) Published version 2019-07-10T08:48:03Z 2019-12-06T16:15:57Z 2019-07-10T08:48:03Z 2019-12-06T16:15:57Z 2017 Journal Article Lu, W., Qin, X. S., & Jun, C. (2019). A parsimonious framework of evaluating WSUD features in urban flood mitigation. Journal of Environmental Informatics, 33(1), 17-27. doi:10.3808/jei.201700373 1726-2135 https://hdl.handle.net/10356/86097 http://hdl.handle.net/10220/49264 10.3808/jei.201700373 en Journal of Environmental Informatics © 2017 ISEIS. All rights reserved. This paper was published in Journal of Environmental Informatics and is made available with permission of ISEIS. 11 p. application/pdf |
| spellingShingle | Water Sensitivity Urban Design Urban Flood Damage Engineering::Environmental engineering Lu, W. Jun, Changhyun Qin, Xiao Sheng A parsimonious framework of evaluating WSUD features in urban flood mitigation |
| title | A parsimonious framework of evaluating WSUD features in urban flood mitigation |
| title_full | A parsimonious framework of evaluating WSUD features in urban flood mitigation |
| title_fullStr | A parsimonious framework of evaluating WSUD features in urban flood mitigation |
| title_full_unstemmed | A parsimonious framework of evaluating WSUD features in urban flood mitigation |
| title_short | A parsimonious framework of evaluating WSUD features in urban flood mitigation |
| title_sort | parsimonious framework of evaluating wsud features in urban flood mitigation |
| topic | Water Sensitivity Urban Design Urban Flood Damage Engineering::Environmental engineering |
| url | https://hdl.handle.net/10356/86097 http://hdl.handle.net/10220/49264 |
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