{"version":"1.0","type":"rich","title":"On-time performance of the top-5 busiest airports in USA","description":"This radial chart shows the on-time performance of the top-5 busiest US airports by plotting average departure delay across dates in a circular layout. Each airport forms a closed line polygon using `d3.lineRadial` with `curveLinearClosed`, colored by a categorical scale. An interactive color legend highlights one airport at a time, fading others via opacity. The visualization uses React for component structure, D3 v5 scales (`scaleTime`, `scaleLinear`, `scaleOrdinal`), and `pointRadial` for angle axis ticks, with data loaded from a CSV of airline performance metrics.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/40f6502388de4c4d8e985fffbff1d23e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}