{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.7927, 7.4616)",
 "slug": "discovered-lane-46-7927-7-4616",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.71150999357724,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 4134.0,
   "end_distance_m": 4136.0,
   "start_elevation_m": 1080.9371212453718,
   "end_elevation_m": 1081.6113514452434,
   "min_gradient_pct": -12.625490948460083
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.013918222693672,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 4133.0,
   "end_distance_m": 4136.0,
   "start_elevation_m": 1080.8009338985626,
   "end_elevation_m": 1081.6113514452434,
   "min_gradient_pct": -9.667626506992141
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.20382719624331,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2195.0,
   "end_distance_m": 2200.0,
   "start_elevation_m": 925.6821506123715,
   "end_elevation_m": 926.7423419721837,
   "min_gradient_pct": -8.74671869951726
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.6197945830786,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2183.0,
   "end_distance_m": 2193.0,
   "start_elevation_m": 923.2236299052093,
   "end_elevation_m": 925.2856093635172,
   "min_gradient_pct": -4.918167922471639
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.520008783527146,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2180.0,
   "end_distance_m": 2200.0,
   "start_elevation_m": 922.6383402154783,
   "end_elevation_m": 926.7423419721837,
   "min_gradient_pct": -3.3895679796967215
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.229158472829567,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2175.0,
   "end_distance_m": 2200.0,
   "start_elevation_m": 921.6850523539763,
   "end_elevation_m": 926.7423419721837,
   "min_gradient_pct": -2.4483736863003287
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.044477808591182,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2166.0,
   "end_distance_m": 2216.0,
   "start_elevation_m": 920.1111463277111,
   "end_elevation_m": 929.6333852320067,
   "min_gradient_pct": -0.38069350682553704
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.337146622086948,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2136.0,
   "end_distance_m": 2236.0,
   "start_elevation_m": 914.8821655343622,
   "end_elevation_m": 933.2193121564492,
   "min_gradient_pct": 0.895754653498102
  }
 ],
 "shape": {
  "ascent_concentration": 0.331,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 231.0,
  "shape_class": "sustained"
 },
 "length_m": 4208.860073194443,
 "start_elevation_m": 774.0524541992195,
 "end_elevation_m": 1081.9593872246137,
 "endpoint_gain_m": 307.9069330253942,
 "overall_gradient_pct": 7.315684714405314,
 "accumulated_ascent_m": 311.5770647318037,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.20382719624331,
   "start_distance_m": 2195.0,
   "end_distance_m": 2200.0,
   "midpoint_distance_m": 2197.5,
   "start_elevation_m": 925.6821506123715,
   "end_elevation_m": 926.7423419721837,
   "start_xy": [
    2602511.406387032,
    1182062.872744313
   ],
   "end_xy": [
    2602510.684598661,
    1182067.8187608733
   ]
  },
  "max_10m": {
   "gradient_pct": 20.6197945830786,
   "start_distance_m": 2183.0,
   "end_distance_m": 2193.0,
   "midpoint_distance_m": 2188.0,
   "start_elevation_m": 923.2236299052093,
   "end_elevation_m": 925.2856093635172,
   "start_xy": [
    2602512.2575274645,
    1182050.9212851746
   ],
   "end_xy": [
    2602511.689821984,
    1182060.8929300215
   ]
  },
  "max_20m": {
   "gradient_pct": 20.520008783527146,
   "start_distance_m": 2180.0,
   "end_distance_m": 2200.0,
   "midpoint_distance_m": 2190.0,
   "start_elevation_m": 922.6383402154783,
   "end_elevation_m": 926.7423419721837,
   "start_xy": [
    2602512.342288719,
    1182047.9224828251
   ],
   "end_xy": [
    2602510.684598661,
    1182067.8187608733
   ]
  },
  "max_25m": {
   "gradient_pct": 20.229158472829567,
   "start_distance_m": 2175.0,
   "end_distance_m": 2200.0,
   "midpoint_distance_m": 2187.5,
   "start_elevation_m": 921.6850523539763,
   "end_elevation_m": 926.7423419721837,
   "start_xy": [
    2602512.483557476,
    1182042.92447891
   ],
   "end_xy": [
    2602510.684598661,
    1182067.8187608733
   ]
  },
  "max_50m": {
   "gradient_pct": 19.044477808591182,
   "start_distance_m": 2166.0,
   "end_distance_m": 2216.0,
   "midpoint_distance_m": 2191.0,
   "start_elevation_m": 920.1111463277111,
   "end_elevation_m": 929.6333852320067,
   "start_xy": [
    2602512.7378412397,
    1182033.928071862
   ],
   "end_xy": [
    2602504.0748304627,
    1182082.3585828252
   ]
  },
  "max_100m": {
   "gradient_pct": 18.337146622086948,
   "start_distance_m": 2136.0,
   "end_distance_m": 2236.0,
   "midpoint_distance_m": 2186.0,
   "start_elevation_m": 914.8821655343622,
   "end_elevation_m": 933.2193121564492,
   "start_xy": [
    2602513.597887278,
    1182003.9408018715
   ],
   "end_xy": [
    2602495.0460707587,
    1182100.1490785922
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.74671869951726,
   "start_distance_m": 4136.0,
   "end_distance_m": 4141.0,
   "midpoint_distance_m": 4138.5,
   "start_elevation_m": 1081.6113514452434,
   "end_elevation_m": 1081.1740155102675,
   "start_xy": [
    2600979.2736319806,
    1182392.6194647038
   ],
   "end_xy": [
    2600974.428751137,
    1182393.8552355624
   ]
  },
  "min_10m": {
   "gradient_pct": -4.918167922471639,
   "start_distance_m": 4020.0,
   "end_distance_m": 4030.0,
   "midpoint_distance_m": 4025.0,
   "start_elevation_m": 1077.7092581459763,
   "end_elevation_m": 1077.217441353729,
   "start_xy": [
    2601085.79042761,
    1182375.6480654334
   ],
   "end_xy": [
    2601084.827766864,
    1182385.5003741672
   ]
  },
  "min_20m": {
   "gradient_pct": -3.3895679796967215,
   "start_distance_m": 4164.0,
   "end_distance_m": 4184.0,
   "midpoint_distance_m": 4174.0,
   "start_elevation_m": 1082.2241327162621,
   "end_elevation_m": 1081.5462191203228,
   "start_xy": [
    2600952.334368724,
    1182400.1875904703
   ],
   "end_xy": [
    2600933.3924080217,
    1182406.6064785952
   ]
  },
  "min_25m": {
   "gradient_pct": -2.4483736863003287,
   "start_distance_m": 4164.0,
   "end_distance_m": 4189.0,
   "midpoint_distance_m": 4176.5,
   "start_elevation_m": 1082.2241327162621,
   "end_elevation_m": 1081.612039294687,
   "start_xy": [
    2600952.334368724,
    1182400.1875904703
   ],
   "end_xy": [
    2600928.6569178463,
    1182408.2112006263
   ]
  },
  "min_50m": {
   "gradient_pct": -0.38069350682553704,
   "start_distance_m": 4155.0,
   "end_distance_m": 4205.0,
   "midpoint_distance_m": 4180.0,
   "start_elevation_m": 1082.1094391030222,
   "end_elevation_m": 1081.9190923496094,
   "start_xy": [
    2600960.8630847763,
    1182397.3153939662
   ],
   "end_xy": [
    2600914.435073853,
    1182415.4332970346
   ]
  },
  "min_100m": {
   "gradient_pct": 0.895754653498102,
   "start_distance_m": 3267.0,
   "end_distance_m": 3367.0,
   "midpoint_distance_m": 3317.0,
   "start_elevation_m": 1023.289216599591,
   "end_elevation_m": 1024.184971253089,
   "start_xy": [
    2601794.471416759,
    1182417.248500582
   ],
   "end_xy": [
    2601705.9342098543,
    1182370.8386217998
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.71150999357724,
   "start_distance_m": 4134.0,
   "end_distance_m": 4136.0,
   "midpoint_distance_m": 4135.0,
   "start_elevation_m": 1080.9371212453718,
   "end_elevation_m": 1081.6113514452434,
   "start_xy": [
    2600981.2115843175,
    1182392.1251563604
   ],
   "end_xy": [
    2600979.2736319806,
    1182392.6194647038
   ]
  },
  "max_3m": {
   "gradient_pct": 27.013918222693672,
   "start_distance_m": 4133.0,
   "end_distance_m": 4136.0,
   "midpoint_distance_m": 4134.5,
   "start_elevation_m": 1080.8009338985626,
   "end_elevation_m": 1081.6113514452434,
   "start_xy": [
    2600982.1805604864,
    1182391.8780021886
   ],
   "end_xy": [
    2600979.2736319806,
    1182392.6194647038
   ]
  }
 },
 "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": {
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "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
  ],
  "elevation_crs": "EPSG:2056",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/ch/swissalti3d_2025_2600-1182_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2601-1182_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2602-1181_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2602-1182_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2603-1181_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2603-1182_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T04:22:13+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10-batch.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ch-run7-260911",
  "elevation_provider": "swisstopo swissALTI3D",
  "elevation_licence": "swisstopo open government data (OGD): free use, attribution '\u00a9 swisstopo' \u2014 https://www.swisstopo.admin.ch/en/terms-and-conditions",
  "elevation_dataset": "swissALTI3D 0.5 m DTM (Federal Office of Topography swisstopo)",
  "elevation_tile_ids": [
   "2600-1182",
   "2601-1182",
   "2602-1181",
   "2602-1182",
   "2603-1181",
   "2603-1182"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Burgistein",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}