This bar chart visualizes the total park-and-ride capacity for each Randstad city in the Netherlands, sourced from an NPR dataset. The chart shows capacity values on a descending y-axis, with city names rotated vertically along the x-axis. Built with D3 v6, the visualization uses `scaleLinear` and `scaleBand` for positioning, with custom data transformation functions cleaning and aggregating city-specific entries. The SVG render includes styled axes, gridlines, and a steelblue title, demonstrating a clean, margin-based layout.