{
 "ocl_version": "0.1.0",
 "name": "Lane near Storhaug",
 "slug": "discovered-lane-61-5045-7-7897",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.571547739936932,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 132.0,
   "end_distance_m": 134.0,
   "start_elevation_m": 798.0009048501096,
   "end_elevation_m": 798.5923358049083,
   "min_gradient_pct": -0.9996575636478156
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.377754384023472,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 131.0,
   "end_distance_m": 134.0,
   "start_elevation_m": 797.7710031733876,
   "end_elevation_m": 798.5923358049083,
   "min_gradient_pct": -0.3051923941446451
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.18472775360806,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 138.0,
   "end_distance_m": 143.0,
   "start_elevation_m": 799.4351129476469,
   "end_elevation_m": 800.6943493353273,
   "min_gradient_pct": 0.7391038449895859
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.36604301670741,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 132.0,
   "end_distance_m": 142.0,
   "start_elevation_m": 798.0009048501096,
   "end_elevation_m": 800.4375091517803,
   "min_gradient_pct": 1.2206600706042536
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.763062715905562,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 131.0,
   "end_distance_m": 151.0,
   "start_elevation_m": 797.7710031733876,
   "end_elevation_m": 802.3236157165687,
   "min_gradient_pct": 3.2289237833060724
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.580222362100812,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 131.0,
   "end_distance_m": 156.0,
   "start_elevation_m": 797.7710031733876,
   "end_elevation_m": 803.1660587639128,
   "min_gradient_pct": 4.273078055126916
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.637957585292497,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 125.0,
   "end_distance_m": 175.0,
   "start_elevation_m": 797.0541310455847,
   "end_elevation_m": 806.3731098382309,
   "min_gradient_pct": 6.285765746626112
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.592092084339242,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 127.0,
   "end_distance_m": 227.0,
   "start_elevation_m": 797.31859772259,
   "end_elevation_m": 813.9106898069292,
   "min_gradient_pct": 10.470793192980636
  }
 ],
 "shape": {
  "ascent_concentration": 0.342,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 84.0,
  "shape_class": "sustained"
 },
 "length_m": 230.93919896530468,
 "start_elevation_m": 783.0080500732176,
 "end_elevation_m": 814.2420559480045,
 "endpoint_gain_m": 31.234005874786817,
 "overall_gradient_pct": 13.524774492475519,
 "accumulated_ascent_m": 31.253999026059773,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.18472775360806,
   "start_distance_m": 138.0,
   "end_distance_m": 143.0,
   "midpoint_distance_m": 140.5,
   "start_elevation_m": 799.4351129476469,
   "end_elevation_m": 800.6943493353273,
   "start_xy": [
    116784.64397781657,
    6840235.575387318
   ],
   "end_xy": [
    116787.48829552144,
    6840239.675689754
   ]
  },
  "max_10m": {
   "gradient_pct": 24.36604301670741,
   "start_distance_m": 132.0,
   "end_distance_m": 142.0,
   "midpoint_distance_m": 137.0,
   "start_elevation_m": 798.0009048501096,
   "end_elevation_m": 800.4375091517803,
   "start_xy": [
    116781.4002080244,
    6840230.517838659
   ],
   "end_xy": [
    116786.80649101135,
    6840238.947086425
   ]
  },
  "max_20m": {
   "gradient_pct": 22.763062715905562,
   "start_distance_m": 131.0,
   "end_distance_m": 151.0,
   "midpoint_distance_m": 141.0,
   "start_elevation_m": 797.7710031733876,
   "end_elevation_m": 802.3236157165687,
   "start_xy": [
    116780.8595797257,
    6840229.674913882
   ],
   "end_xy": [
    116793.18506837553,
    6840245.308277309
   ]
  },
  "max_25m": {
   "gradient_pct": 21.580222362100812,
   "start_distance_m": 131.0,
   "end_distance_m": 156.0,
   "midpoint_distance_m": 143.5,
   "start_elevation_m": 797.7710031733876,
   "end_elevation_m": 803.1660587639128,
   "start_xy": [
    116780.8595797257,
    6840229.674913882
   ],
   "end_xy": [
    116796.86948267256,
    6840248.687758559
   ]
  },
  "max_50m": {
   "gradient_pct": 18.637957585292497,
   "start_distance_m": 125.0,
   "end_distance_m": 175.0,
   "midpoint_distance_m": 150.0,
   "start_elevation_m": 797.0541310455847,
   "end_elevation_m": 806.3731098382309,
   "start_xy": [
    116778.71350357996,
    6840224.107625126
   ],
   "end_xy": [
    116811.22415944065,
    6840261.141685562
   ]
  },
  "max_100m": {
   "gradient_pct": 16.592092084339242,
   "start_distance_m": 127.0,
   "end_distance_m": 227.0,
   "midpoint_distance_m": 177.0,
   "start_elevation_m": 797.31859772259,
   "end_elevation_m": 813.9106898069292,
   "start_xy": [
    116779.25889518802,
    6840226.021816048
   ],
   "end_xy": [
    116794.50735152145,
    6840286.15653297
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.7391038449895859,
   "start_distance_m": 10.0,
   "end_distance_m": 15.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 783.5649994716157,
   "end_elevation_m": 783.6019546638652,
   "start_xy": [
    116786.19917773885,
    6840142.075689843
   ],
   "end_xy": [
    116791.01722696538,
    6840143.294527813
   ]
  },
  "min_10m": {
   "gradient_pct": 1.2206600706042536,
   "start_distance_m": 9.0,
   "end_distance_m": 19.0,
   "midpoint_distance_m": 14.0,
   "start_elevation_m": 783.5567722747268,
   "end_elevation_m": 783.6788382817872,
   "start_xy": [
    116785.26425434403,
    6840141.716915087
   ],
   "end_xy": [
    116794.9928225241,
    6840143.783869636
   ]
  },
  "min_20m": {
   "gradient_pct": 3.2289237833060724,
   "start_distance_m": 3.0,
   "end_distance_m": 23.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 783.2582253412777,
   "end_elevation_m": 783.9040100979389,
   "start_xy": [
    116780.09264731022,
    6840138.757305941
   ],
   "end_xy": [
    116798.75555360163,
    6840144.993188896
   ]
  },
  "min_25m": {
   "gradient_pct": 4.273078055126916,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 783.0080500732176,
   "end_elevation_m": 784.0763195869994,
   "start_xy": [
    116777.895,
    6840136.709
   ],
   "end_xy": [
    116800.53389262476,
    6840145.904083188
   ]
  },
  "min_50m": {
   "gradient_pct": 6.285765746626112,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 783.0080500732176,
   "end_elevation_m": 786.1509329465307,
   "start_xy": [
    116777.895,
    6840136.709
   ],
   "end_xy": [
    116814.70601365615,
    6840166.1961493
   ]
  },
  "min_100m": {
   "gradient_pct": 10.470793192980636,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 783.0080500732176,
   "end_elevation_m": 793.4788432661983,
   "start_xy": [
    116777.895,
    6840136.709
   ],
   "end_xy": [
    116789.1892755068,
    6840202.244329766
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.571547739936932,
   "start_distance_m": 132.0,
   "end_distance_m": 134.0,
   "midpoint_distance_m": 133.0,
   "start_elevation_m": 798.0009048501096,
   "end_elevation_m": 798.5923358049083,
   "start_xy": [
    116781.4002080244,
    6840230.517838659
   ],
   "end_xy": [
    116782.48146462179,
    6840232.203688212
   ]
  },
  "max_3m": {
   "gradient_pct": 27.377754384023472,
   "start_distance_m": 131.0,
   "end_distance_m": 134.0,
   "midpoint_distance_m": 132.5,
   "start_elevation_m": 797.7710031733876,
   "end_elevation_m": 798.5923358049083,
   "start_xy": [
    116780.8595797257,
    6840229.674913882
   ],
   "end_xy": [
    116782.48146462179,
    6840232.203688212
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.0,
   "obstruction_max_height_m": 0.4,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "f734ae6b8374a5620775f88f78087f4b3f1875d8",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:8c94015b54267da4",
   "python": "3.14.4",
   "numpy": "2.5.3",
   "rasterio": "1.5.2",
   "pyproj": "3.8.0",
   "laspy": "2.7.0",
   "shapely": "2.1.2",
   "pyosmium": "4.3.1",
   "libosmium": "2.23.1",
   "gdal": "3.12.2",
   "proj": "9.8.1",
   "run_id": "no-b06",
   "road_pbf": "no-b06-block-batch-no-b06.osm.pbf",
   "region_key": "norway",
   "crs": "EPSG:25833",
   "elevation_provider_key": "nhm-no",
   "tile_index": "nhm-window",
   "authority": "nvdb",
   "registry_pbf": "norway-2026-10-01.osm.pbf"
  },
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "scale_correction": "point",
  "scale_correction_crs": "EPSG:25833",
  "elevation_crs": "EPSG:25833",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/no/nhm-no_dtm_E116500-N6840000_1m.tif"
  ],
  "calculated_at": "2026-10-03T19:22:39+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b06-block-batch-no-b06.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b06",
  "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",
  "elevation_tile_ids": [
   "E116500-N6840000"
  ],
  "elevation_blocks": [
   "nhm-dtm-1m"
  ],
  "nhm_laser_projects": [
   {
    "last_flight_date": "2014-08-28",
    "name": "Luster-Stryn 2012",
    "points_per_m2": 2,
    "resolution_m": 0.5,
    "season": "",
    "year": 2012
   },
   {
    "last_flight_date": "2007-01-01",
    "name": "Sogn og Fjordane 2007",
    "points_per_m2": 2,
    "resolution_m": 0.5,
    "season": "season-unknown",
    "year": 2007
   }
  ],
  "nhm_last_flight_date": "2014-08-28",
  "nhm_flight_season_unknown": [
   "Sogn og Fjordane 2007"
  ],
  "nhm_retrieved_at": "2026-10-03T16:45:24Z",
  "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": 16,
   "stations_resolved": 16,
   "width_median_m": 5.38,
   "width_p10_m": 4.0,
   "width_min_m": 2.5,
   "width_max_m": 11.25,
   "bounded_share": 0.25,
   "unbounded_share": 0.75,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.25,
   "window_m": [
    131.0,
    156.0
   ],
   "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": 16,
    "stations_resolved": 16,
    "width_median_m": 9.0,
    "width_p10_m": 6.38,
    "width_min_m": 5.0,
    "width_max_m": 12.0,
    "bounded_share": 0.5,
    "unbounded_share": 0.5,
    "confidence_median": 0.447,
    "width_median_bounded_m": 6.75,
    "window_m": [
     131.0,
     156.0
    ],
    "width_at_max25_m": 9.0,
    "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
   }
  },
  "naming_note": "birth-named at adoption (nearest OSM village/hamlet/locality node ('Storhaug'))",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Luster",
  "county": "Vestland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}