{"version":"1.0","type":"rich","title":"v7 - Boston Crash Map","description":"This map shows the geographic distribution of traffic crashes in Boston, colored by mode type: motor vehicle (red), pedestrian (blue), and bicycle (green). Interactive checkboxes let viewers filter crash points by type. The visualization renders Boston’s neighborhood boundaries as GeoJSON paths using `d3.geoPath` with a `geoMercator` projection, and overlays individual crash locations from the city’s 911 dispatch dataset as SVG circles. Crash data is loaded directly from a CSV file.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/21cdfe1783344b249af855efc302e835?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}