{
 "ocl_version": "0.1.0",
 "name": "Litlaskar",
 "slug": "litlaskar",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.957259607392103,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 196.0,
   "end_distance_m": 198.0,
   "start_elevation_m": 67.82975003340938,
   "end_elevation_m": 68.36889522555722,
   "min_gradient_pct": -5.620771718115591
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.89169291457078,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 203.0,
   "end_distance_m": 206.0,
   "start_elevation_m": 69.5092072149105,
   "end_elevation_m": 70.28595800234763,
   "min_gradient_pct": -5.369393222562498
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.97219473902817,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 203.0,
   "end_distance_m": 208.0,
   "start_elevation_m": 69.5092072149105,
   "end_elevation_m": 70.75781695186191,
   "min_gradient_pct": -4.8945517946643236
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.562079689382443,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 196.0,
   "end_distance_m": 206.0,
   "start_elevation_m": 67.82975003340938,
   "end_elevation_m": 70.28595800234763,
   "min_gradient_pct": -3.1590330479085793
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.80067904129085,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 195.0,
   "end_distance_m": 215.0,
   "start_elevation_m": 67.62684711711994,
   "end_elevation_m": 72.3869829253781,
   "min_gradient_pct": -0.3209664896368736
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.7046872287456,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 168.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 61.283752020183364,
   "end_elevation_m": 67.20992382736976,
   "min_gradient_pct": 1.1499012813863487
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.432527455356563,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 165.0,
   "end_distance_m": 215.0,
   "start_elevation_m": 60.670719197699825,
   "end_elevation_m": 72.3869829253781,
   "min_gradient_pct": 5.140584346407735
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.733375907587842,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 123.0,
   "end_distance_m": 223.0,
   "start_elevation_m": 54.10564546425192,
   "end_elevation_m": 73.83902137183976,
   "min_gradient_pct": 9.767884750377902
  }
 ],
 "shape": {
  "ascent_concentration": 0.4,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 97.0,
  "shape_class": "sustained"
 },
 "length_m": 247.68184203586185,
 "start_elevation_m": 41.964292895189814,
 "end_elevation_m": 76.58144884852213,
 "endpoint_gain_m": 34.617155953332315,
 "overall_gradient_pct": 13.976460958458189,
 "accumulated_ascent_m": 34.93305925812317,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.97219473902817,
   "start_distance_m": 203.0,
   "end_distance_m": 208.0,
   "midpoint_distance_m": 205.5,
   "start_elevation_m": 69.5092072149105,
   "end_elevation_m": 70.75781695186191,
   "start_xy": [
    -49112.551131768785,
    6625713.417621694
   ],
   "end_xy": [
    -49107.58805112792,
    6625712.687566188
   ]
  },
  "max_10m": {
   "gradient_pct": 24.562079689382443,
   "start_distance_m": 196.0,
   "end_distance_m": 206.0,
   "midpoint_distance_m": 201.0,
   "start_elevation_m": 67.82975003340938,
   "end_elevation_m": 70.28595800234763,
   "start_xy": [
    -49119.499444666,
    6625714.439699401
   ],
   "end_xy": [
    -49109.57328338426,
    6625712.97958839
   ]
  },
  "max_20m": {
   "gradient_pct": 23.80067904129085,
   "start_distance_m": 195.0,
   "end_distance_m": 215.0,
   "midpoint_distance_m": 205.0,
   "start_elevation_m": 67.62684711711994,
   "end_elevation_m": 72.3869829253781,
   "start_xy": [
    -49120.492060794175,
    6625714.585710502
   ],
   "end_xy": [
    -49100.62380952605,
    6625711.837136578
   ]
  },
  "max_25m": {
   "gradient_pct": 23.7046872287456,
   "start_distance_m": 168.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 180.5,
   "start_elevation_m": 61.283752020183364,
   "end_elevation_m": 67.20992382736976,
   "start_xy": [
    -49147.51392760967,
    6625715.448846145
   ],
   "end_xy": [
    -49122.47729305052,
    6625714.877732704
   ]
  },
  "max_50m": {
   "gradient_pct": 23.432527455356563,
   "start_distance_m": 165.0,
   "end_distance_m": 215.0,
   "midpoint_distance_m": 190.0,
   "start_elevation_m": 60.670719197699825,
   "end_elevation_m": 72.3869829253781,
   "start_xy": [
    -49150.523811158935,
    6625715.441004455
   ],
   "end_xy": [
    -49100.62380952605,
    6625711.837136578
   ]
  },
  "max_100m": {
   "gradient_pct": 19.733375907587842,
   "start_distance_m": 123.0,
   "end_distance_m": 223.0,
   "midpoint_distance_m": 173.0,
   "start_elevation_m": 54.10564546425192,
   "end_elevation_m": 73.83902137183976,
   "start_xy": [
    -49192.58781290937,
    6625717.229616894
   ],
   "end_xy": [
    -49092.6666641229,
    6625712.330362919
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.8945517946643236,
   "start_distance_m": 40.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 42.5,
   "start_elevation_m": 44.84153793104846,
   "end_elevation_m": 44.59681034131524,
   "start_xy": [
    -49274.7206494478,
    6625730.374250782
   ],
   "end_xy": [
    -49269.89237677256,
    6625729.012984943
   ]
  },
  "min_10m": {
   "gradient_pct": -3.1590330479085793,
   "start_distance_m": 39.0,
   "end_distance_m": 49.0,
   "midpoint_distance_m": 44.0,
   "start_elevation_m": 44.845841249114486,
   "end_elevation_m": 44.52993794432363,
   "start_xy": [
    -49275.68630398285,
    6625730.64650395
   ],
   "end_xy": [
    -49266.020500002494,
    6625727.966284477
   ]
  },
  "min_20m": {
   "gradient_pct": -0.3209664896368736,
   "start_distance_m": 35.0,
   "end_distance_m": 55.0,
   "midpoint_distance_m": 45.0,
   "start_elevation_m": 44.75853847917972,
   "end_elevation_m": 44.694345181252345,
   "start_xy": [
    -49279.548922123045,
    6625731.735516621
   ],
   "end_xy": [
    -49260.07384639812,
    6625727.0307294885
   ]
  },
  "min_25m": {
   "gradient_pct": 1.1499012813863487,
   "start_distance_m": 33.0,
   "end_distance_m": 58.0,
   "midpoint_distance_m": 45.5,
   "start_elevation_m": 44.623810785213664,
   "end_elevation_m": 44.91128610556025,
   "start_xy": [
    -49281.48023119315,
    6625732.280022956
   ],
   "end_xy": [
    -49257.10051959593,
    6625726.562951994
   ]
  },
  "min_50m": {
   "gradient_pct": 5.140584346407735,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 41.964292895189814,
   "end_elevation_m": 44.53458506839368,
   "start_xy": [
    -49313.744,
    6625739.623
   ],
   "end_xy": [
    -49265.02939106843,
    6625727.810358645
   ]
  },
  "min_100m": {
   "gradient_pct": 9.767884750377902,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 41.964292895189814,
   "end_elevation_m": 51.73217764556772,
   "start_xy": [
    -49313.744,
    6625739.623
   ],
   "end_xy": [
    -49215.53891282957,
    6625719.620938494
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.957259607392103,
   "start_distance_m": 196.0,
   "end_distance_m": 198.0,
   "midpoint_distance_m": 197.0,
   "start_elevation_m": 67.82975003340938,
   "end_elevation_m": 68.36889522555722,
   "start_xy": [
    -49119.499444666,
    6625714.439699401
   ],
   "end_xy": [
    -49117.51421240965,
    6625714.147677199
   ]
  },
  "max_3m": {
   "gradient_pct": 25.89169291457078,
   "start_distance_m": 203.0,
   "end_distance_m": 206.0,
   "midpoint_distance_m": 204.5,
   "start_elevation_m": 69.5092072149105,
   "end_elevation_m": 70.28595800234763,
   "start_xy": [
    -49112.551131768785,
    6625713.417621694
   ],
   "end_xy": [
    -49109.57328338426,
    6625712.97958839
   ]
  }
 },
 "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": 0.064,
   "obstruction_max_height_m": 6.34,
   "flagged_windows_m": [
    2,
    10
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "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-b01",
   "road_pbf": "no-b01-block-batch-no-b01.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_E-49500-N6625500_1m.tif"
  ],
  "calculated_at": "2026-10-03T19:13:15+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b01-block-batch-no-b01.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b01",
  "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": [
   "E-49500-N6625500"
  ],
  "elevation_blocks": [
   "nhm-dtm-1m"
  ],
  "nhm_laser_projects": [
   {
    "last_flight_date": "2017-05-27",
    "name": "NDH Karm\u00f8y-Haugesund 5pkt 2017",
    "points_per_m2": 5,
    "resolution_m": 0.25,
    "season": "",
    "year": 2017
   },
   {
    "last_flight_date": "2007-01-01",
    "name": "Rogaland 2007",
    "points_per_m2": 1,
    "resolution_m": 1,
    "season": "season-unknown",
    "year": 2007
   }
  ],
  "nhm_last_flight_date": "2017-05-27",
  "nhm_flight_season_unknown": [
   "Rogaland 2007"
  ],
  "nhm_retrieved_at": "2026-10-03T06:57:41Z",
  "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": 3.25,
   "width_p10_m": 2.62,
   "width_min_m": 2.5,
   "width_max_m": 11.5,
   "bounded_share": 0.625,
   "unbounded_share": 0.375,
   "confidence_median": 0.556,
   "width_median_bounded_m": 3.0,
   "window_m": [
    168.0,
    193.0
   ],
   "width_at_max25_m": 3.0,
   "window_stations": 7,
   "single_track": true,
   "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": 4.75,
    "width_p10_m": 2.62,
    "width_min_m": 2.25,
    "width_max_m": 12.0,
    "bounded_share": 0.812,
    "unbounded_share": 0.188,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.25,
    "window_m": [
     168.0,
     193.0
    ],
    "width_at_max25_m": 4.25,
    "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
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Haugesund",
  "county": "Rogaland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}