This area chart displays the number of traffic accidents for each weather condition, with a smooth blue area and black outline. The visualization is built with D3 v5, using `scalePoint` for the categorical weather axis, `scaleLinear` for the count axis, and `curveBasis` to smooth both the `line` and `area` generators. Data is loaded from a CSV file hosted on GitHub and aggregated client-side by counting occurrences per weather type. The SVG output includes labeled axes with grid lines, though the x-axis labels for the longest weather condition names may be truncated.