In this project, we introduce “route-zooming,” a novel technique for seamless spatio-temporal data visualization. It broadens selected routes in a map while minimizing road network distortion. This approach reveals spatial and temporal patterns without occlusion, applied to metro maps and illustrative examples. We demonstrate its usability with real traffic flow data and validate design choices through a user study.

• Data Visualization Techniques
• Spatial and Temporal Analysis
• User Study and Validation