{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.2647, 7.4302)",
 "slug": "discovered-lane-47-2647-7-4302",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.62758172644658,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 966.0,
   "end_distance_m": 968.0,
   "start_elevation_m": 980.6972153986716,
   "end_elevation_m": 981.4297670332005,
   "min_gradient_pct": -11.539461309064336
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 35.01762965028471,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1285.0,
   "end_distance_m": 1288.0,
   "start_elevation_m": 1054.1626764942405,
   "end_elevation_m": 1055.213205383749,
   "min_gradient_pct": -11.104592195192708
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 34.17051231600908,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1282.0,
   "end_distance_m": 1287.0,
   "start_elevation_m": 1053.1751488092457,
   "end_elevation_m": 1054.8836744250461,
   "min_gradient_pct": -10.517194017820657
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 32.69155285193733,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 962.0,
   "end_distance_m": 972.0,
   "start_elevation_m": 979.394082567831,
   "end_elevation_m": 982.6632378530247,
   "min_gradient_pct": -10.088776644458903
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 30.957808234953177,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 955.0,
   "end_distance_m": 975.0,
   "start_elevation_m": 977.3859856783797,
   "end_elevation_m": 983.5775473253703,
   "min_gradient_pct": -9.530143102007855
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 30.393305580481865,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 955.0,
   "end_distance_m": 980.0,
   "start_elevation_m": 977.3859856783797,
   "end_elevation_m": 984.9843120735002,
   "min_gradient_pct": -9.216549711978587
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 29.679503028067757,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 954.0,
   "end_distance_m": 1004.0,
   "start_elevation_m": 977.0925765115037,
   "end_elevation_m": 991.9323280255376,
   "min_gradient_pct": -8.173905444085904
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 26.112289787579357,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 946.0,
   "end_distance_m": 1046.0,
   "start_elevation_m": 975.1556123114524,
   "end_elevation_m": 1001.2679020990317,
   "min_gradient_pct": -7.237837522235168
  }
 ],
 "shape": {
  "ascent_concentration": 0.468,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 559.0,
  "shape_class": "stepped"
 },
 "length_m": 1619.8154262580688,
 "start_elevation_m": 934.0595940263581,
 "end_elevation_m": 1115.5070399062358,
 "endpoint_gain_m": 181.4474458798777,
 "overall_gradient_pct": 11.20173588536806,
 "accumulated_ascent_m": 200.78321773009293,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 34.17051231600908,
   "start_distance_m": 1282.0,
   "end_distance_m": 1287.0,
   "midpoint_distance_m": 1284.5,
   "start_elevation_m": 1053.1751488092457,
   "end_elevation_m": 1054.8836744250461,
   "start_xy": [
    2599363.4537853417,
    1234590.1860168905
   ],
   "end_xy": [
    2599361.2306840797,
    1234585.710232659
   ]
  },
  "max_10m": {
   "gradient_pct": 32.69155285193733,
   "start_distance_m": 962.0,
   "end_distance_m": 972.0,
   "midpoint_distance_m": 967.0,
   "start_elevation_m": 979.394082567831,
   "end_elevation_m": 982.6632378530247,
   "start_xy": [
    2599157.455457316,
    1234746.0558598717
   ],
   "end_xy": [
    2599167.2549236794,
    1234744.066159066
   ]
  },
  "max_20m": {
   "gradient_pct": 30.957808234953177,
   "start_distance_m": 955.0,
   "end_distance_m": 975.0,
   "midpoint_distance_m": 965.0,
   "start_elevation_m": 977.3859856783797,
   "end_elevation_m": 983.5775473253703,
   "start_xy": [
    2599152.9314491265,
    1234750.7725789251
   ],
   "end_xy": [
    2599170.190397027,
    1234743.4472921772
   ]
  },
  "max_25m": {
   "gradient_pct": 30.393305580481865,
   "start_distance_m": 955.0,
   "end_distance_m": 980.0,
   "midpoint_distance_m": 967.5,
   "start_elevation_m": 977.3859856783797,
   "end_elevation_m": 984.9843120735002,
   "start_xy": [
    2599152.9314491265,
    1234750.7725789251
   ],
   "end_xy": [
    2599175.082852606,
    1234742.415847363
   ]
  },
  "max_50m": {
   "gradient_pct": 29.679503028067757,
   "start_distance_m": 954.0,
   "end_distance_m": 1004.0,
   "midpoint_distance_m": 979.0,
   "start_elevation_m": 977.0925765115037,
   "end_elevation_m": 991.9323280255376,
   "start_xy": [
    2599152.5806759647,
    1234751.7021919508
   ],
   "end_xy": [
    2599198.553531071,
    1234737.414445365
   ]
  },
  "max_100m": {
   "gradient_pct": 26.112289787579357,
   "start_distance_m": 946.0,
   "end_distance_m": 1046.0,
   "midpoint_distance_m": 996.0,
   "start_elevation_m": 975.1556123114524,
   "end_elevation_m": 1001.2679020990317,
   "start_xy": [
    2599152.1909354725,
    1234759.6622648868
   ],
   "end_xy": [
    2599238.082003393,
    1234723.3175560113
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -10.517194017820657,
   "start_distance_m": 122.0,
   "end_distance_m": 127.0,
   "midpoint_distance_m": 124.5,
   "start_elevation_m": 928.0727261344152,
   "end_elevation_m": 927.5468664335242,
   "start_xy": [
    2599585.1547243632,
    1235257.2496299879
   ],
   "end_xy": [
    2599587.5572125386,
    1235252.8646498774
   ]
  },
  "min_10m": {
   "gradient_pct": -10.088776644458903,
   "start_distance_m": 122.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 127.0,
   "start_elevation_m": 928.0727261344152,
   "end_elevation_m": 927.0638484699693,
   "start_xy": [
    2599585.1547243632,
    1235257.2496299879
   ],
   "end_xy": [
    2599589.959700714,
    1235248.4796697672
   ]
  },
  "min_20m": {
   "gradient_pct": -9.530143102007855,
   "start_distance_m": 112.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 122.0,
   "start_elevation_m": 928.9698770903709,
   "end_elevation_m": 927.0638484699693,
   "start_xy": [
    2599580.349748013,
    1235266.0195902083
   ],
   "end_xy": [
    2599589.959700714,
    1235248.4796697672
   ]
  },
  "min_25m": {
   "gradient_pct": -9.216549711978587,
   "start_distance_m": 109.0,
   "end_distance_m": 134.0,
   "midpoint_distance_m": 121.5,
   "start_elevation_m": 929.2181121144089,
   "end_elevation_m": 926.9139746864142,
   "start_xy": [
    2599578.9082551077,
    1235268.6505782746
   ],
   "end_xy": [
    2599590.920695984,
    1235246.725677723
   ]
  },
  "min_50m": {
   "gradient_pct": -8.173905444085904,
   "start_distance_m": 94.0,
   "end_distance_m": 144.0,
   "midpoint_distance_m": 119.0,
   "start_elevation_m": 930.3665366288578,
   "end_elevation_m": 926.2795839068149,
   "start_xy": [
    2599571.7007905818,
    1235281.8055186055
   ],
   "end_xy": [
    2599595.7256723344,
    1235237.9557175024
   ]
  },
  "min_100m": {
   "gradient_pct": -7.237837522235168,
   "start_distance_m": 76.0,
   "end_distance_m": 176.0,
   "midpoint_distance_m": 126.0,
   "start_elevation_m": 931.5237204882226,
   "end_elevation_m": 924.2858829659874,
   "start_xy": [
    2599563.051833151,
    1235297.5914470027
   ],
   "end_xy": [
    2599609.520376988,
    1235209.158465661
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.62758172644658,
   "start_distance_m": 966.0,
   "end_distance_m": 968.0,
   "midpoint_distance_m": 967.0,
   "start_elevation_m": 980.6972153986716,
   "end_elevation_m": 981.4297670332005,
   "start_xy": [
    2599161.3839769843,
    1234745.3038928432
   ],
   "end_xy": [
    2599163.340959216,
    1234744.8913149175
   ]
  },
  "max_3m": {
   "gradient_pct": 35.01762965028471,
   "start_distance_m": 1285.0,
   "end_distance_m": 1288.0,
   "midpoint_distance_m": 1286.5,
   "start_elevation_m": 1054.1626764942405,
   "end_elevation_m": 1055.213205383749,
   "start_xy": [
    2599362.162415877,
    1234587.4799433297
   ],
   "end_xy": [
    2599360.764818181,
    1234584.8253773237
   ]
  }
 },
 "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": [
   "may_continue_beyond_end"
  ]
 },
 "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_2599-1234_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2599-1235_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:46:49+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-run6-260910",
  "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": [
   "2599-1234",
   "2599-1235"
  ],
  "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": "Grandval",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}