{
  "scope": "Plano city + 3000 m context",
  "nodes": 98193,
  "edges": 290552,
  "gzip_bytes": 16636765,
  "sha256": "548fd30c275fecadbb7d3169948dff3512caf21d1dc4b0ceff195cae66f3a378",
  "traffic_proximity": "Length fraction within 30 m of mapped TxDOT AADT >=25,000; exposure context, not collision risk.",
  "source_geometry": "Actual OSM graph edge geometry, rounded only for display; routing costs retain full precision."
}