This visualization displays a pie chart that uses data from the RDW (Dutch vehicle registration authority) to explore parking usage purposes, though the chart currently renders hardcoded year values (2013–2019) rather than the fetched API data. The code fetches JSON from two RDW Open Data endpoints using the Fetch API, filters location data by the `startdataarea` column, and then builds the chart with d3.pie() and d3.arc(), styled with d3.scaleOrdinal and d3.schemeCategory10. Rendering occurs as SVG elements within a 400x400 viewport.