{"version":"1.0","type":"rich","title":"Document","description":"This example analyzes British shipping routes and their environmental impact on major cities. It presents four interactive SVG visualizations: a map of the UK with city pollution levels, an arc chart ranking ship categories by sailing mileage, a line chart showing hourly sailing distances, and a scatter plot relating trip duration to distance. The code loads AIS track data and Emission data, using D3 modules such as `d3.nest`, `d3.sum`, and `d3.scaleBand` for aggregation, plus `d3.arc`, `d3.line`, and `d3.geoPath` for rendering, with transitions animating the arc chart.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/602fb855f2cc4a509a89faae6d31f4cf?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}