Inundation Risk Index in Hangzhou Center Districts - Haoyu

README.md

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-Add a readme for your dashboard here. Include content overview, data citations, and any relevant technical details.
+# Inundation Risk Index in Hangzhou Central Districts  
+[Live Dashboard](https://haoyu25.github.io/dashboard-project/)
+
+This dashboard helps government officials and urban planners identify high-risk inundation areas in Hangzhou's central districts, allowing authorities to prioritize mitigation actions such as green infrastructure, drainage upgrades, and early-warning systems. The risk index combines inundation probability with impervious surface percentage.
+
+---
+
+## How to Use
+
+### Category Selection
+- Adjust the sliders to filter categories.  
+  - For limited budgets, raise thresholds to focus on the most severe areas.  
+  - For wider coverage, lower thresholds to include more areas.  
+- Click pie chart segments to focus on specific risk categories.
+
+### Location Selection
+- Zoom in or use the search/filter tools to locate amenities or stations that need action.  
+- Click hexagons to select units of interest.
+
+### Export
+- The dashboard shows the number of selected units.  
+- Once your selection is complete, click the **Export** button to download a shapefile of the selected hexagons.
+
+---
+
+## Data Sources
+- **Inundation Risk Index:** From one of the author's projects: [Hangzhou Flooding Risk Detection](https://github.com/haoyu25/Hangzhou-Flooding-Risk-Detect)  
+- **Amenity and Station POIs:** GaoDe Open Platform ([高德开放平台](https://lbs.amap.com/))