Chiayi County, Taiwan, an area increasingly susceptible to severe, short-duration heavy rains, needed to transform its reactive flood mitigation strategy into a proactive, smart disaster prevention system. Onework 工一科技 addressed this challenge by developing the Chiayi County Stormwater Drainage Real-time Water Monitoring System. The primary technical hurdle was to render a vast network of underground pipelines in 3D, integrate real-time water data, and dynamically visualize predicted flood conditions across the network.

Onework chose CesiumJS for its core 3D visualization and geospatial modeling capabilities. This provided an open, highly programmable environment that effectively integrated the SWMM flood prediction model with real-time monitoring. By using a GeoJSON-based data pipeline and custom shaders, the platform dynamically generates and animates the 3D pipe models. This means pipe color instantly reflects flow rate variations, and realistic flow animations simulate water movement based on a 3-hour flood forecast.

This digital platform delivers immediate life-saving and economic benefits, transforming the region’s approach to Climate Action. Previously, decisions relied on village representatives making hazardous on-site visits to assess flooding. Now, emergency response personnel can safely and instantly grasp disaster situations. The system allows for the proactive deployment of assets—specifically, mobilizing the county’s 228 mobile pumping stations to high-impact areas in advance, greatly enhancing the resilience of this coastal city.