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 "provenance": {
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   "crs": "EPSG:25833",
   "elevation_provider_key": "nhm-no",
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  "elevation_crs": "EPSG:25833",
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  "elevation_tiles": [
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  "calculated_at": "2026-10-04T05:41:22+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b04-block-batch-no-b04.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b04",
  "elevation_provider": "Kartverket NHM DTM 1 m (laser-covered ground only)",
  "elevation_licence": "CC BY 4.0 \u2014 \u00a9 Kartverket (https://www.kartverket.no/api-og-data/vilkar-for-bruk)",
  "elevation_dataset": "Nasjonal h\u00f8ydemodell (NHM) DTM, 1 m, EPSG:25833, NN2000 (Kartverket), served by the hoydedata.no ImageServer; ground without a laser project is a coarser resampled product and is never measured",
  "elevation_vertical_datum": "NN2000",
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  "elevation_blocks": [
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   },
   {
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   {
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    "name": "Viken laser - \u00d8stfold 5pkt del1 2022",
    "points_per_m2": 5,
    "resolution_m": 0.25,
    "season": "",
    "year": 2022
   },
   {
    "last_flight_date": "2011-04-25",
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    "season": "snow-season",
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  "nhm_last_flight_date": "2022-05-28",
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   "\u00d8stfold S\u00f8r 1pkt 2011"
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  "nhm_retrieved_at": "2026-10-03T12:43:26Z",
  "nhm_note": "laser projects overlapping the route's cells; the mosaic draws on them by its own priority and which project supplied which pixel is not recorded",
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 1,
  "tunnel_check": "osm tunnel=* ways on 1 own way(s)",
  "tunnel_ranges_m": [],
  "underground_fraction": 0.0,
  "carriageway": {
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   "stations_resolved": 17,
   "width_median_m": 5.25,
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   "width_min_m": 2.75,
   "width_max_m": 12.0,
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   "width_at_max25_m": 5.25,
   "window_stations": 7,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
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   "hedge_to_hedge": {
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    "stations_resolved": 17,
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    "bounded_share": 0.824,
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    "status": "ok",
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  "naming_note": "birth-named at adoption (named from its own OSM street ('Grastoveien'), anchored to '\u00d8rmen' (Peter, 2026-09-30))",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "R\u00e5de",
  "county": "\u00d8stfold",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}