{"version":"1.0","type":"rich","title":"Monthly Passenger Count for Year 2019","description":"This grouped bar chart shows monthly air passenger counts for 2019, split by domestic and international flights. The visualization uses d3.nest to aggregate the CSV data by date and geography, then renders two bars per month with d3.scaleBand and d3.scaleLinear. Axes are formatted with d3.axisBottom and d3.axisLeft, while a d3.scaleOrdinal color scale distinguishes the two categories. Data comes from DataSF’s Air Traffic Passenger Statistics dataset.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d5128b20ae33406ba81106fdfb7ef877?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}