Optimizing risk mitigation investment strategies for improving post-earthquake road network resilience
The road network is a major urban lifeline, and its post-earthquake resiliency is crucial to rapid and reliable rescue work. This study aims to optimize risk mitigation investment strategies for improving post-earthquake road network resilience. First, instead of theoretical assumptions on link fail...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2020-12-01
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| Series: | International Journal of Transportation Science and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2046043020300071 |
| _version_ | 1827831528454881280 |
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| author | Jian Li Yi Zhou |
| author_facet | Jian Li Yi Zhou |
| author_sort | Jian Li |
| collection | DOAJ |
| description | The road network is a major urban lifeline, and its post-earthquake resiliency is crucial to rapid and reliable rescue work. This study aims to optimize risk mitigation investment strategies for improving post-earthquake road network resilience. First, instead of theoretical assumptions on link failure probability, an empirical predictive model of debris obstruction of collapsed buildings was used to calculate link connectivity probability. Second, the Monte Carlo simulation method was employed to calculate post-earthquake road network accessibility based on the results of link connectivity reliability. Third, an optimal risk mitigation investment model was used in order to maximize post-earthquake network accessibility with different government budgets. A case study was analyzed by using the proposed method in an Shanghai historical area. Results may help local governments make better decisions of risk mitigation strategies in regard to earthquakes. |
| first_indexed | 2024-03-12T04:49:52Z |
| format | Article |
| id | doaj.art-52a61c0706e74dc396e8941963a86be0 |
| institution | Directory Open Access Journal |
| issn | 2046-0430 |
| language | English |
| last_indexed | 2024-03-12T04:49:52Z |
| publishDate | 2020-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | International Journal of Transportation Science and Technology |
| spelling | doaj.art-52a61c0706e74dc396e8941963a86be02023-09-03T09:25:22ZengKeAi Communications Co., Ltd.International Journal of Transportation Science and Technology2046-04302020-12-0194277286Optimizing risk mitigation investment strategies for improving post-earthquake road network resilienceJian Li0Yi Zhou1Corresponding author.; College of Transportation Engineering, Tongji University, Shanghai 201804, PR ChinaCollege of Transportation Engineering, Tongji University, Shanghai 201804, PR ChinaThe road network is a major urban lifeline, and its post-earthquake resiliency is crucial to rapid and reliable rescue work. This study aims to optimize risk mitigation investment strategies for improving post-earthquake road network resilience. First, instead of theoretical assumptions on link failure probability, an empirical predictive model of debris obstruction of collapsed buildings was used to calculate link connectivity probability. Second, the Monte Carlo simulation method was employed to calculate post-earthquake road network accessibility based on the results of link connectivity reliability. Third, an optimal risk mitigation investment model was used in order to maximize post-earthquake network accessibility with different government budgets. A case study was analyzed by using the proposed method in an Shanghai historical area. Results may help local governments make better decisions of risk mitigation strategies in regard to earthquakes.http://www.sciencedirect.com/science/article/pii/S2046043020300071Road network vulnerabilityEarthquake mitigationInvestment strategyMonte Carlo simulation |
| spellingShingle | Jian Li Yi Zhou Optimizing risk mitigation investment strategies for improving post-earthquake road network resilience International Journal of Transportation Science and Technology Road network vulnerability Earthquake mitigation Investment strategy Monte Carlo simulation |
| title | Optimizing risk mitigation investment strategies for improving post-earthquake road network resilience |
| title_full | Optimizing risk mitigation investment strategies for improving post-earthquake road network resilience |
| title_fullStr | Optimizing risk mitigation investment strategies for improving post-earthquake road network resilience |
| title_full_unstemmed | Optimizing risk mitigation investment strategies for improving post-earthquake road network resilience |
| title_short | Optimizing risk mitigation investment strategies for improving post-earthquake road network resilience |
| title_sort | optimizing risk mitigation investment strategies for improving post earthquake road network resilience |
| topic | Road network vulnerability Earthquake mitigation Investment strategy Monte Carlo simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2046043020300071 |
| work_keys_str_mv | AT jianli optimizingriskmitigationinvestmentstrategiesforimprovingpostearthquakeroadnetworkresilience AT yizhou optimizingriskmitigationinvestmentstrategiesforimprovingpostearthquakeroadnetworkresilience |