{"title":"A surrogate machine learning modeling approach for enhancing the efficiency of urban flood modeling at metropolitan scales","authors":"Fatemeh Rezaei Aderyani , Keighobad Jafarzadegan , Hamid Moradkhani","doi":"10.1016/j.scs.2025.106277","DOIUrl":null,"url":null,"abstract":"<div><div>Urban drainage systems in metropolitan areas are highly complex, posing significant challenges for effective stormwater management. Traditional models like Storm Water Management Model (SWMM) are widely used but become inefficient at large scales with intricate drainage networks. This limitation is particularly critical for early warning systems, which require fast and simplified flood modeling methods. This study investigates surrogate machine learning (ML) models for efficient urban flood modeling at a metropolitan scale. Using SWMM as benchmark, the proposed model demonstrates its ability to replicate SWMM results, offering a more efficient alternative. We partition the system into hydrologically connected clusters, reducing 66,482 manholes to 363 manageable units. The approach combines this clustering strategy with ML modeling to predict key surcharge variables (flood duration, peak, and volume) for individual manholes across complex drainage system. Model validation demonstrates robust performance (R² > 0.8 for extreme events) while reducing computational time by 92.6%. Feature importance analysis reveals depth and duration as primary drivers of flood prediction, with model accuracy correlating to infrastructure density. The surrogate models excel particularly at predicting extreme events, with varying performance across different rainfall conditions. This computational efficiency enables real-time prediction updates crucial for emergency response planning and flood management strategies.</div></div>","PeriodicalId":48659,"journal":{"name":"Sustainable Cities and Society","volume":"123 ","pages":"Article 106277"},"PeriodicalIF":10.5000,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sustainable Cities and Society","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2210670725001544","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Urban drainage systems in metropolitan areas are highly complex, posing significant challenges for effective stormwater management. Traditional models like Storm Water Management Model (SWMM) are widely used but become inefficient at large scales with intricate drainage networks. This limitation is particularly critical for early warning systems, which require fast and simplified flood modeling methods. This study investigates surrogate machine learning (ML) models for efficient urban flood modeling at a metropolitan scale. Using SWMM as benchmark, the proposed model demonstrates its ability to replicate SWMM results, offering a more efficient alternative. We partition the system into hydrologically connected clusters, reducing 66,482 manholes to 363 manageable units. The approach combines this clustering strategy with ML modeling to predict key surcharge variables (flood duration, peak, and volume) for individual manholes across complex drainage system. Model validation demonstrates robust performance (R² > 0.8 for extreme events) while reducing computational time by 92.6%. Feature importance analysis reveals depth and duration as primary drivers of flood prediction, with model accuracy correlating to infrastructure density. The surrogate models excel particularly at predicting extreme events, with varying performance across different rainfall conditions. This computational efficiency enables real-time prediction updates crucial for emergency response planning and flood management strategies.
期刊介绍:
Sustainable Cities and Society (SCS) is an international journal that focuses on fundamental and applied research to promote environmentally sustainable and socially resilient cities. The journal welcomes cross-cutting, multi-disciplinary research in various areas, including:
1. Smart cities and resilient environments;
2. Alternative/clean energy sources, energy distribution, distributed energy generation, and energy demand reduction/management;
3. Monitoring and improving air quality in built environment and cities (e.g., healthy built environment and air quality management);
4. Energy efficient, low/zero carbon, and green buildings/communities;
5. Climate change mitigation and adaptation in urban environments;
6. Green infrastructure and BMPs;
7. Environmental Footprint accounting and management;
8. Urban agriculture and forestry;
9. ICT, smart grid and intelligent infrastructure;
10. Urban design/planning, regulations, legislation, certification, economics, and policy;
11. Social aspects, impacts and resiliency of cities;
12. Behavior monitoring, analysis and change within urban communities;
13. Health monitoring and improvement;
14. Nexus issues related to sustainable cities and societies;
15. Smart city governance;
16. Decision Support Systems for trade-off and uncertainty analysis for improved management of cities and society;
17. Big data, machine learning, and artificial intelligence applications and case studies;
18. Critical infrastructure protection, including security, privacy, forensics, and reliability issues of cyber-physical systems.
19. Water footprint reduction and urban water distribution, harvesting, treatment, reuse and management;
20. Waste reduction and recycling;
21. Wastewater collection, treatment and recycling;
22. Smart, clean and healthy transportation systems and infrastructure;