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    "season": "",
    "year": 2011
   }
  ],
  "nhm_last_flight_date": "2024-09-19",
  "nhm_flight_season_unknown": [
   "Rollag 2009"
  ],
  "nhm_retrieved_at": "2026-10-03T10:37:46Z",
  "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": {
   "stations": 401,
   "stations_resolved": 401,
   "width_median_m": 4.75,
   "width_p10_m": 3.5,
   "width_min_m": 2.25,
   "width_max_m": 12.0,
   "bounded_share": 0.06,
   "unbounded_share": 0.94,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.25,
   "window_m": [
    2583.0,
    2608.0
   ],
   "width_at_max25_m": 5.0,
   "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",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "stations": 401,
    "stations_resolved": 401,
    "width_median_m": 7.5,
    "width_p10_m": 2.5,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.698,
    "unbounded_share": 0.302,
    "confidence_median": 1.0,
    "width_median_bounded_m": 6.25,
    "window_m": [
     2583.0,
     2608.0
    ],
    "width_at_max25_m": 3.0,
    "window_stations": 7,
    "status": "ok",
    "source": "dsm",
    "station_m": 25.0,
    "window_station_m": 5.0,
    "halfwidth_m": 6.0,
    "step_m": 0.25,
    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Nore og Uvdal",
  "county": "Buskerud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}