This bar chart shows the total parking capacity for each city in the Randstad region, with capacities aggregated for cities that appear under multiple names. The visualization uses D3 v6 with SVG rendering, employing `scaleBand` for the x-axis and `scaleLinear` for the y-axis. Data is fetched as JSON from a GitHub gist, then processed through custom functions to filter, clean, and combine city entries before rendering.