London LSOA / Ward / Borough Car Ownership Explorer

Cloudflare Pages + R2 + MapLibre (generated by cf-python skill)

Map above — scroll here for controls, selection details, and chart.

LSOA Mode (single)
Ward Mode (aggregate LSOAs)
Borough Mode

Map impact measure Car count vs average Density (cars/sq mi) vs average Trend vs average Benchmark Median of level Mean of level

Click after editing files if you see stale code / old error messages

Show LTN schemes (ATA data)

Purple = active scheme area (newly filtered streets). Green = removed. Red dots = modal filters. Click an LTN to aggregate car ownership for overlapping LSOAs; click elsewhere for LSOA/Ward.

Click on the map to select an LSOA, Ward, or Borough.

Data: London-only subset (Parquet + PMTiles + JSON attrs).
Center/zoom: ~51.495, -0.08 @ 11.2
Local test: IMPORTANT: cd to the project root. Run a proper server that supports range requests, e.g. npx serve -l 8000 (recommended) or wrangler pages dev frontend. Then open exactly http://localhost:8000/frontend/index.html. Use the yellow “Force fresh reload” button or hard refresh. The JSON test link still works for basic verification.