{
  "schemaVersion": 1,
  "generatedAt": "2026-09-14T13:50:05.211Z",
  "source": {
    "name": "OpenStreetMap",
    "attribution": "© OpenStreetMap contributors",
    "license": "ODbL 1.0",
    "licenseUrl": "https://opendatacommons.org/licenses/odbl/1-0/",
    "graphSnapshotAt": "2026-08-18T16:20:06Z",
    "factsSnapshotAt": "2026-09-14T13:47:09.314Z",
    "factsTimestampBasis": "retrieved_at",
    "factsBounds": [
      13.7345,
      100.5565,
      13.741,
      100.564
    ],
    "factsCoverageLabel": "พื้นที่นำร่องบริเวณอโศก–สุขุมวิท",
    "factsStatus": "available",
    "downloadUrl": "/insight/data/access-license.json"
  },
  "sourceUrl": "https://www.openstreetmap.org/copyright",
  "endpoint": "https://api.openstreetmap.org/api/0.6/map.json",
  "supplementaryQuery": "GET https://api.openstreetmap.org/api/0.6/map.json?bbox=100.5565,13.7345,100.564,13.741",
  "supplementaryFailure": null,
  "files": [
    "/insight/data/access-graph.json",
    "/insight/data/access-facts.json",
    "/insight/data/access-source.json"
  ],
  "counts": {
    "inputWays": 29473,
    "allowedWays": 28151,
    "nodes": 141134,
    "crossings": 2769,
    "footbridges": 4825,
    "parking": 5,
    "entrances": 15
  },
  "method": [
    "ODbL adapted database; source way/node IDs preserved",
    "Only shared original OSM node IDs connect graph edges; coordinate intersections do not create connections",
    "Private, no-access, customer-only, restricted, conditional, opening-hours and area ways excluded",
    "Supplementary node positions and OSM edit dates are map records, not field verification",
    "Only mapped entrance nodes exactly present in the graph can be route destinations; no station-to-entrance association inferred",
    "Maximum start snap 40m; gaps excluded from route geometry and distance; maximum graph route 2500m",
    "Footway extract does not include the complete road/barrier network; known barriers can be excluded but unmapped barriers remain unknown",
    "Parking is only mapped presence; no claim of free spaces, current fee, or permission to park"
  ]
}