{
 "ocl_version": "0.1.0",
 "name": "\u00c5kreveien (Tj\u00e5elmie - Tjolmen)",
 "slug": "discovered-lane-65-5349-14-2446",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.91283501850046,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 262.0,
   "end_distance_m": 264.0,
   "start_elevation_m": 496.64199337871145,
   "end_elevation_m": 497.20025007908146,
   "min_gradient_pct": -26.247751106626538
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.568180148261945,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 261.0,
   "end_distance_m": 264.0,
   "start_elevation_m": 496.3732046746336,
   "end_elevation_m": 497.20025007908146,
   "min_gradient_pct": -26.035395848286196
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.434243474064033,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 260.0,
   "end_distance_m": 265.0,
   "start_elevation_m": 496.0968114291275,
   "end_elevation_m": 497.4685236028307,
   "min_gradient_pct": -25.931792414785377
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.683615570269694,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 258.0,
   "end_distance_m": 268.0,
   "start_elevation_m": 495.5823854061062,
   "end_elevation_m": 498.25074696313317,
   "min_gradient_pct": -25.167833665691433
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.40091841844537,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 248.0,
   "end_distance_m": 268.0,
   "start_elevation_m": 492.9705632794441,
   "end_elevation_m": 498.25074696313317,
   "min_gradient_pct": -24.699454285192814
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 25.93615380240385,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 244.0,
   "end_distance_m": 269.0,
   "start_elevation_m": 491.99889333651146,
   "end_elevation_m": 498.4829317871124,
   "min_gradient_pct": -23.817657564530236
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 24.283612994997043,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 220.0,
   "end_distance_m": 270.0,
   "start_elevation_m": 486.56359509631346,
   "end_elevation_m": 498.705401593812,
   "min_gradient_pct": -20.43089141700716
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 22.949202543753245,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 177.0,
   "end_distance_m": 277.0,
   "start_elevation_m": 477.15278231347526,
   "end_elevation_m": 500.1019848572285,
   "min_gradient_pct": -10.57636147777896
  }
 ],
 "shape": {
  "ascent_concentration": 0.446,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 225.0,
  "shape_class": "sustained"
 },
 "length_m": 1066.7873818829926,
 "start_elevation_m": 450.62612495042634,
 "end_elevation_m": 544.0653505078176,
 "endpoint_gain_m": 93.43922555739124,
 "overall_gradient_pct": 8.758936142688633,
 "accumulated_ascent_m": 108.22720276354158,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.434243474064033,
   "start_distance_m": 260.0,
   "end_distance_m": 265.0,
   "midpoint_distance_m": 262.5,
   "start_elevation_m": 496.0968114291275,
   "end_elevation_m": 497.4685236028307,
   "start_xy": [
    465112.0637991208,
    7268027.38911302
   ],
   "end_xy": [
    465116.8909388651,
    7268026.180946444
   ]
  },
  "max_10m": {
   "gradient_pct": 26.683615570269694,
   "start_distance_m": 258.0,
   "end_distance_m": 268.0,
   "midpoint_distance_m": 263.0,
   "start_elevation_m": 495.5823854061062,
   "end_elevation_m": 498.25074696313317,
   "start_xy": [
    465110.1555527754,
    7268027.985364376
   ],
   "end_xy": [
    465119.87705809984,
    7268025.90497297
   ]
  },
  "max_20m": {
   "gradient_pct": 26.40091841844537,
   "start_distance_m": 248.0,
   "end_distance_m": 268.0,
   "midpoint_distance_m": 258.0,
   "start_elevation_m": 492.9705632794441,
   "end_elevation_m": 498.25074696313317,
   "start_xy": [
    465101.6684399202,
    7268033.2032641545
   ],
   "end_xy": [
    465119.87705809984,
    7268025.90497297
   ]
  },
  "max_25m": {
   "gradient_pct": 25.93615380240385,
   "start_distance_m": 244.0,
   "end_distance_m": 269.0,
   "midpoint_distance_m": 256.5,
   "start_elevation_m": 491.99889333651146,
   "end_elevation_m": 498.4829317871124,
   "start_xy": [
    465098.5888253227,
    7268035.752143097
   ],
   "end_xy": [
    465120.87243117805,
    7268025.812981811
   ]
  },
  "max_50m": {
   "gradient_pct": 24.283612994997043,
   "start_distance_m": 220.0,
   "end_distance_m": 270.0,
   "midpoint_distance_m": 245.0,
   "start_elevation_m": 486.56359509631346,
   "end_elevation_m": 498.705401593812,
   "start_xy": [
    465080.45521429693,
    7268051.449095305
   ],
   "end_xy": [
    465121.8470656137,
    7268025.990607959
   ]
  },
  "max_100m": {
   "gradient_pct": 22.949202543753245,
   "start_distance_m": 177.0,
   "end_distance_m": 277.0,
   "midpoint_distance_m": 227.0,
   "start_elevation_m": 477.15278231347526,
   "end_elevation_m": 500.1019848572285,
   "start_xy": [
    465051.31532388064,
    7268082.969452454
   ],
   "end_xy": [
    465127.6818361577,
    7268029.521420774
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -25.931792414785377,
   "start_distance_m": 730.0,
   "end_distance_m": 735.0,
   "midpoint_distance_m": 732.5,
   "start_elevation_m": 521.8137740312707,
   "end_elevation_m": 520.5171844105314,
   "start_xy": [
    465209.5923833758,
    7268417.494892301
   ],
   "end_xy": [
    465214.5645990098,
    7268417.971842107
   ]
  },
  "min_10m": {
   "gradient_pct": -25.167833665691433,
   "start_distance_m": 730.0,
   "end_distance_m": 740.0,
   "midpoint_distance_m": 735.0,
   "start_elevation_m": 521.8137740312707,
   "end_elevation_m": 519.2969906647015,
   "start_xy": [
    465209.5923833758,
    7268417.494892301
   ],
   "end_xy": [
    465219.5426368207,
    7268418.418925877
   ]
  },
  "min_20m": {
   "gradient_pct": -24.699454285192814,
   "start_distance_m": 728.0,
   "end_distance_m": 748.0,
   "midpoint_distance_m": 738.0,
   "start_elevation_m": 522.2683561027345,
   "end_elevation_m": 517.328465245696,
   "start_xy": [
    465207.6797988873,
    7268416.912707008
   ],
   "end_xy": [
    465227.24807673343,
    7268420.555498961
   ]
  },
  "min_25m": {
   "gradient_pct": -23.817657564530236,
   "start_distance_m": 727.0,
   "end_distance_m": 752.0,
   "midpoint_distance_m": 739.5,
   "start_elevation_m": 522.4570397914315,
   "end_elevation_m": 516.5026254002989,
   "start_xy": [
    465206.723506643,
    7268416.621614362
   ],
   "end_xy": [
    465231.03818616277,
    7268421.813987781
   ]
  },
  "min_50m": {
   "gradient_pct": -20.43089141700716,
   "start_distance_m": 711.0,
   "end_distance_m": 761.0,
   "midpoint_distance_m": 736.0,
   "start_elevation_m": 525.0487958254048,
   "end_elevation_m": 514.8333501169012,
   "start_xy": [
    465194.3579791117,
    7268406.784637132
   ],
   "end_xy": [
    465236.77177620545,
    7268428.281760727
   ]
  },
  "min_100m": {
   "gradient_pct": -10.57636147777896,
   "start_distance_m": 681.0,
   "end_distance_m": 781.0,
   "midpoint_distance_m": 731.0,
   "start_elevation_m": 525.40181977758,
   "end_elevation_m": 514.8254582998011,
   "start_xy": [
    465177.3573121824,
    7268382.117780058
   ],
   "end_xy": [
    465239.4049580418,
    7268447.942486563
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.91283501850046,
   "start_distance_m": 262.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 263.0,
   "start_elevation_m": 496.64199337871145,
   "end_elevation_m": 497.20025007908146,
   "start_xy": [
    465113.97204546613,
    7268026.792861666
   ],
   "end_xy": [
    465115.89556578686,
    7268026.272937602
   ]
  },
  "max_3m": {
   "gradient_pct": 27.568180148261945,
   "start_distance_m": 261.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 262.5,
   "start_elevation_m": 496.3732046746336,
   "end_elevation_m": 497.20025007908146,
   "start_xy": [
    465113.01792229345,
    7268027.090987343
   ],
   "end_xy": [
    465115.89556578686,
    7268026.272937602
   ]
  }
 },
 "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": 0.018,
   "obstruction_max_height_m": 10.44,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "368c60c29e47d4b421849c953b172a04f7694146",
   "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-b13",
   "road_pbf": "no-b13-block-batch-no-b13.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_E464500-N7268000_1m.tif",
   "data/cache/no/nhm-no_dtm_E465000-N7268000_1m.tif",
   "data/cache/no/nhm-no_dtm_E465000-N7268500_1m.tif"
  ],
  "calculated_at": "2026-10-04T03:25:02+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b13-block-batch-no-b13.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b13",
  "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": [
   "E464500-N7268000",
   "E465000-N7268000",
   "E465000-N7268500"
  ],
  "elevation_blocks": [
   "nhm-dtm-1m"
  ],
  "nhm_laser_projects": [
   {
    "last_flight_date": "2019-07-31",
    "name": "NDH Hattfjelldal s\u00f8r 2pkt 2019",
    "points_per_m2": 2,
    "resolution_m": 0.5,
    "season": "",
    "year": 2019
   },
   {
    "last_flight_date": "2015-09-22",
    "name": "Nordland S\u00f8r 5pkt 2015",
    "points_per_m2": 5,
    "resolution_m": 0.25,
    "season": "",
    "year": 2015
   }
  ],
  "nhm_last_flight_date": "2019-07-31",
  "nhm_retrieved_at": "2026-10-04T02:51:11Z",
  "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": 49,
   "stations_resolved": 49,
   "width_median_m": 5.0,
   "width_p10_m": 3.75,
   "width_min_m": 2.5,
   "width_max_m": 9.25,
   "bounded_share": 0.367,
   "unbounded_share": 0.633,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.25,
   "window_m": [
    244.0,
    269.0
   ],
   "width_at_max25_m": 6.5,
   "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": 49,
    "stations_resolved": 49,
    "width_median_m": 5.5,
    "width_p10_m": 2.45,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.776,
    "unbounded_share": 0.224,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.62,
    "window_m": [
     244.0,
     269.0
    ],
    "width_at_max25_m": 6.25,
    "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 (named from its own OSM street ('\u00c5kreveien'), anchored to 'Tj\u00e5elmie - Tjolmen' (Peter, 2026-09-30))",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Hattfjelldal",
  "county": "Nordland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}