{"version":"1.0","type":"rich","title":"1116东北基础设施堆叠图","description":"This visualization shows the composition of pedestrian, non-motorized vehicle, and motorized vehicle counts for a single road lane, with each category stacked as a colored segment. The chart uses D3 v6’s `d3.stack()` to generate stacked series, rendered as SVG rectangles via a data join. Axes are drawn with `d3.axisLeft` and `d3.axisBottom`, while a categorical color scale from `d3.scaleOrdinal` with `d3.schemeSet3` distinguishes the three transport modes. The fixed SVG size and margins are set explicitly in the markup, and the data is hardcoded rather than loaded from an external file.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a0a9ed188310425c8b578f09059af7b2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}