Automated urban waterlogging assessment and early warning through a mixture of foundation models

• URL: http://arxiv.org/abs/2510.18425v1
• Date: Tue, 21 Oct 2025 08:59:30 GMT
• Title: Automated urban waterlogging assessment and early warning through a mixture of foundation models
• Authors: Chenxu Zhang, Fuxiang Huang, Lei Zhang,
• Abstract summary: Urban waterlogging poses an increasingly severe threat to global public safety and infrastructure.<n>Existing monitoring approaches rely heavily on manual reporting and fail to provide timely and comprehensive assessments.<n>We present Urban Waterlogging Assessment (UWAssess), a foundation model-driven framework that automatically identifies waterlogged areas in surveillance images and generates structured assessment reports.
• Score: 17.44149264525115
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: With climate change intensifying, urban waterlogging poses an increasingly severe threat to global public safety and infrastructure. However, existing monitoring approaches rely heavily on manual reporting and fail to provide timely and comprehensive assessments. In this study, we present Urban Waterlogging Assessment (UWAssess), a foundation model-driven framework that automatically identifies waterlogged areas in surveillance images and generates structured assessment reports. To address the scarcity of labeled data, we design a semi-supervised fine-tuning strategy and a chain-of-thought (CoT) prompting strategy to unleash the potential of the foundation model for data-scarce downstream tasks. Evaluations on challenging visual benchmarks demonstrate substantial improvements in perception performance. GPT-based evaluations confirm the ability of UWAssess to generate reliable textual reports that accurately describe waterlogging extent, depth, risk and impact. This dual capability enables a shift of waterlogging monitoring from perception to generation, while the collaborative framework of multiple foundation models lays the groundwork for intelligent and scalable systems, supporting urban management, disaster response and climate resilience.

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