{
 "ocl_version": "0.1.0",
 "name": "Votlavegen (Rivenes)",
 "slug": "discovered-lane-60-4626-5-4735",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.860645487522447,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 176.0,
   "end_distance_m": 178.0,
   "start_elevation_m": 51.113919489436256,
   "end_elevation_m": 51.591132399186705,
   "min_gradient_pct": 5.007583116067238
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.24673485965268,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 175.0,
   "end_distance_m": 178.0,
   "start_elevation_m": 50.893730353397125,
   "end_elevation_m": 51.591132399186705,
   "min_gradient_pct": 6.373040393020683
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.988366199840442,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 173.0,
   "end_distance_m": 178.0,
   "start_elevation_m": 50.44171408919468,
   "end_elevation_m": 51.591132399186705,
   "min_gradient_pct": 9.117650694516257
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.386897845274873,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 172.0,
   "end_distance_m": 182.0,
   "start_elevation_m": 50.21623921767672,
   "end_elevation_m": 52.45492900220421,
   "min_gradient_pct": 10.249550655909019
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.324898656219702,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 10.0,
   "end_distance_m": 30.0,
   "start_elevation_m": 22.54923955319682,
   "end_elevation_m": 26.81421928444076,
   "min_gradient_pct": 10.91904535089931
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.519451947425576,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 6.0,
   "end_distance_m": 31.0,
   "start_elevation_m": 21.87368355821671,
   "end_elevation_m": 27.003546545073107,
   "min_gradient_pct": 11.029674849311592
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.764713529271987,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 135.0,
   "end_distance_m": 185.0,
   "start_elevation_m": 43.673497533063525,
   "end_elevation_m": 53.05585429769952,
   "min_gradient_pct": 12.61032496411954
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.246280011578897,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 8.0,
   "end_distance_m": 108.0,
   "start_elevation_m": 22.188899795015907,
   "end_elevation_m": 39.4351798065948,
   "min_gradient_pct": 13.632179364864342
  }
 ],
 "shape": {
  "ascent_concentration": 0.282,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 326.0,
  "shape_class": "sustained"
 },
 "length_m": 326.6749710000466,
 "start_elevation_m": 21.276124339274112,
 "end_elevation_m": 73.5409678592645,
 "endpoint_gain_m": 52.264843519990386,
 "overall_gradient_pct": 15.999035175542398,
 "accumulated_ascent_m": 52.264843519990386,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.988366199840442,
   "start_distance_m": 173.0,
   "end_distance_m": 178.0,
   "midpoint_distance_m": 175.5,
   "start_elevation_m": 50.44171408919468,
   "end_elevation_m": 51.591132399186705,
   "start_xy": [
    -22699.844545883047,
    6740856.887511761
   ],
   "end_xy": [
    -22698.854231724494,
    6740861.803283083
   ]
  },
  "max_10m": {
   "gradient_pct": 22.386897845274873,
   "start_distance_m": 172.0,
   "end_distance_m": 182.0,
   "midpoint_distance_m": 177.0,
   "start_elevation_m": 50.21623921767672,
   "end_elevation_m": 52.45492900220421,
   "start_xy": [
    -22700.03422085335,
    6740855.902660954
   ],
   "end_xy": [
    -22698.022355147205,
    6740865.727885473
   ]
  },
  "max_20m": {
   "gradient_pct": 21.324898656219702,
   "start_distance_m": 10.0,
   "end_distance_m": 30.0,
   "midpoint_distance_m": 20.0,
   "start_elevation_m": 22.54923955319682,
   "end_elevation_m": 26.81421928444076,
   "start_xy": [
    -22743.651160613736,
    6740738.961764856
   ],
   "end_xy": [
    -22733.565967612292,
    6740722.095214325
   ]
  },
  "max_25m": {
   "gradient_pct": 20.519451947425576,
   "start_distance_m": 6.0,
   "end_distance_m": 31.0,
   "midpoint_distance_m": 18.5,
   "start_elevation_m": 21.87368355821671,
   "end_elevation_m": 27.003546545073107,
   "start_xy": [
    -22745.31851439244,
    6740742.610664967
   ],
   "end_xy": [
    -22732.66712640618,
    6740721.65025022
   ]
  },
  "max_50m": {
   "gradient_pct": 18.764713529271987,
   "start_distance_m": 135.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 160.0,
   "start_elevation_m": 43.673497533063525,
   "end_elevation_m": 53.05585429769952,
   "start_xy": [
    -22706.67659977226,
    6740819.394754317
   ],
   "end_xy": [
    -22697.24088053875,
    6740868.632325976
   ]
  },
  "max_100m": {
   "gradient_pct": 17.246280011578897,
   "start_distance_m": 8.0,
   "end_distance_m": 108.0,
   "midpoint_distance_m": 58.0,
   "start_elevation_m": 22.188899795015907,
   "end_elevation_m": 39.4351798065948,
   "start_xy": [
    -22744.48483750309,
    6740740.786214911
   ],
   "end_xy": [
    -22712.20861872496,
    6740792.895966931
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 9.117650694516257,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 21.276124339274112,
   "end_elevation_m": 21.732006873999925,
   "start_xy": [
    -22749.577,
    6740746.391
   ],
   "end_xy": [
    -22745.762660406464,
    6740743.506508352
   ]
  },
  "min_10m": {
   "gradient_pct": 10.249550655909019,
   "start_distance_m": 269.0,
   "end_distance_m": 279.0,
   "midpoint_distance_m": 274.0,
   "start_elevation_m": 65.00232998632637,
   "end_elevation_m": 66.02728505191727,
   "start_xy": [
    -22660.697253275615,
    6740804.041789432
   ],
   "end_xy": [
    -22659.206951533775,
    6740794.123641103
   ]
  },
  "min_20m": {
   "gradient_pct": 10.91904535089931,
   "start_distance_m": 260.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 270.0,
   "start_elevation_m": 63.954323633814894,
   "end_elevation_m": 66.13813270399476,
   "start_xy": [
    -22662.996571421903,
    6740812.770208424
   ],
   "end_xy": [
    -22659.057921359592,
    6740793.13182627
   ]
  },
  "min_25m": {
   "gradient_pct": 11.029674849311592,
   "start_distance_m": 255.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 267.5,
   "start_elevation_m": 63.38071399166686,
   "end_elevation_m": 66.13813270399476,
   "start_xy": [
    -22664.318650481902,
    6740817.6075268295
   ],
   "end_xy": [
    -22659.057921359592,
    6740793.13182627
   ]
  },
  "min_50m": {
   "gradient_pct": 12.61032496411954,
   "start_distance_m": 240.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 265.0,
   "start_elevation_m": 61.18636662780929,
   "end_elevation_m": 67.49152910986906,
   "start_xy": [
    -22669.71166462075,
    6740831.639351458
   ],
   "end_xy": [
    -22657.49497088075,
    6740783.225085377
   ]
  },
  "min_100m": {
   "gradient_pct": 13.632179364864342,
   "start_distance_m": 188.0,
   "end_distance_m": 288.0,
   "midpoint_distance_m": 238.0,
   "start_elevation_m": 53.56725145651923,
   "end_elevation_m": 67.19943082138357,
   "start_xy": [
    -22695.739830404156,
    6740871.0264315065
   ],
   "end_xy": [
    -22657.81920263507,
    6740785.204605562
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.860645487522447,
   "start_distance_m": 176.0,
   "end_distance_m": 178.0,
   "midpoint_distance_m": 177.0,
   "start_elevation_m": 51.113919489436256,
   "end_elevation_m": 51.591132399186705,
   "start_xy": [
    -22699.270170013137,
    6740859.840981889
   ],
   "end_xy": [
    -22698.854231724494,
    6740861.803283083
   ]
  },
  "max_3m": {
   "gradient_pct": 23.24673485965268,
   "start_distance_m": 175.0,
   "end_distance_m": 178.0,
   "midpoint_distance_m": 176.5,
   "start_elevation_m": 50.893730353397125,
   "end_elevation_m": 51.591132399186705,
   "start_xy": [
    -22699.465195942445,
    6740858.857213375
   ],
   "end_xy": [
    -22698.854231724494,
    6740861.803283083
   ]
  }
 },
 "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": 0.14,
   "flagged_windows_m": []
  },
  "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-b03",
   "road_pbf": "no-b03-block-batch-no-b03.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-23000-N6740500_1m.tif"
  ],
  "calculated_at": "2026-10-03T21:46:07+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b03-block-batch-no-b03.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b03",
  "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-23000-N6740500"
  ],
  "elevation_blocks": [
   "nhm-dtm-1m"
  ],
  "nhm_laser_projects": [
   {
    "last_flight_date": "2025-08-17",
    "name": "Nordhordland Gulen 10pkt del2 2025",
    "points_per_m2": 10,
    "resolution_m": 0.25,
    "season": "",
    "year": 2025
   },
   {
    "last_flight_date": "2011-09-16",
    "name": "Oster\u00f8y 2011",
    "points_per_m2": 2,
    "resolution_m": 0.5,
    "season": "",
    "year": 2011
   }
  ],
  "nhm_last_flight_date": "2025-08-17",
  "nhm_retrieved_at": "2026-10-03T17:54:28Z",
  "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": 2,
  "tunnel_check": "osm tunnel=* ways on 2 own way(s)",
  "tunnel_ranges_m": [],
  "underground_fraction": 0.0,
  "carriageway": {
   "stations": 20,
   "stations_resolved": 20,
   "width_median_m": 3.75,
   "width_p10_m": 2.95,
   "width_min_m": 2.5,
   "width_max_m": 12.0,
   "bounded_share": 0.7,
   "unbounded_share": 0.3,
   "confidence_median": 0.921,
   "width_median_bounded_m": 3.38,
   "window_m": [
    6.0,
    31.0
   ],
   "width_at_max25_m": 3.25,
   "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": 20,
    "stations_resolved": 20,
    "width_median_m": 5.5,
    "width_p10_m": 3.98,
    "width_min_m": 3.5,
    "width_max_m": 12.0,
    "bounded_share": 0.85,
    "unbounded_share": 0.15,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.75,
    "window_m": [
     6.0,
     31.0
    ],
    "width_at_max25_m": 4.5,
    "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 ('Votlavegen'), anchored to 'Rivenes' (Peter, 2026-09-30))",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Oster\u00f8y",
  "county": "Vestland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}