{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.4810, 6.9005)",
 "slug": "discovered-lane-46-4810-6-9005",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.98579141613891,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1313.0,
   "end_distance_m": 1315.0,
   "start_elevation_m": 759.2211682751905,
   "end_elevation_m": 759.8608841035133,
   "min_gradient_pct": -19.31957734681191,
   "suppressed_max_gradient_pct": 59.748316762227205,
   "suppressed_location_m": [
    5561.0,
    5563.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.697991655481626,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 5816.0,
   "end_distance_m": 5819.0,
   "start_elevation_m": 1250.732408041441,
   "end_elevation_m": 1251.4733477911054,
   "min_gradient_pct": -16.534149753526133,
   "suppressed_max_gradient_pct": 47.34811545045735,
   "suppressed_location_m": [
    5560.0,
    5563.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.27952210023659,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1498.0,
   "end_distance_m": 1503.0,
   "start_elevation_m": 788.3030747171351,
   "end_elevation_m": 789.417050822147,
   "min_gradient_pct": -14.490307994788054,
   "suppressed_max_gradient_pct": 34.165164251899114,
   "suppressed_location_m": [
    5560.0,
    5565.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.994550091108977,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1493.0,
   "end_distance_m": 1503.0,
   "start_elevation_m": 787.3175958130361,
   "end_elevation_m": 789.417050822147,
   "min_gradient_pct": -12.581505310643024,
   "suppressed_max_gradient_pct": 22.830476815508973,
   "suppressed_location_m": [
    5555.0,
    5565.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.5592664213043,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1483.0,
   "end_distance_m": 1503.0,
   "start_elevation_m": 785.3051975378861,
   "end_elevation_m": 789.417050822147,
   "min_gradient_pct": -9.697348240199517
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.030362025439445,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1478.0,
   "end_distance_m": 1503.0,
   "start_elevation_m": 784.4094603157871,
   "end_elevation_m": 789.417050822147,
   "min_gradient_pct": -8.583321104584684
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.75448317210521,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1453.0,
   "end_distance_m": 1503.0,
   "start_elevation_m": 780.0398092360944,
   "end_elevation_m": 789.417050822147,
   "min_gradient_pct": -6.78493510856606
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.95562593176146,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1403.0,
   "end_distance_m": 1503.0,
   "start_elevation_m": 771.4614248903855,
   "end_elevation_m": 789.417050822147,
   "min_gradient_pct": -5.688025458644233
  }
 ],
 "shape": {
  "ascent_concentration": 0.291,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 532.0,
  "shape_class": "sustained"
 },
 "length_m": 6392.799377649627,
 "start_elevation_m": 633.3965050205054,
 "end_elevation_m": 1292.094695722658,
 "endpoint_gain_m": 658.6981907021525,
 "overall_gradient_pct": 10.303751952627819,
 "accumulated_ascent_m": 673.0069643187297,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.27952210023659,
   "start_distance_m": 1498.0,
   "end_distance_m": 1503.0,
   "midpoint_distance_m": 1500.5,
   "start_elevation_m": 788.3030747171351,
   "end_elevation_m": 789.417050822147,
   "start_xy": [
    2558391.66516689,
    1147651.4036558701
   ],
   "end_xy": [
    2558392.6456293515,
    1147656.30658289
   ]
  },
  "max_10m": {
   "gradient_pct": 20.994550091108977,
   "start_distance_m": 1493.0,
   "end_distance_m": 1503.0,
   "midpoint_distance_m": 1498.0,
   "start_elevation_m": 787.3175958130361,
   "end_elevation_m": 789.417050822147,
   "start_xy": [
    2558390.6847044276,
    1147646.5007288505
   ],
   "end_xy": [
    2558392.6456293515,
    1147656.30658289
   ]
  },
  "max_20m": {
   "gradient_pct": 20.5592664213043,
   "start_distance_m": 1483.0,
   "end_distance_m": 1503.0,
   "midpoint_distance_m": 1493.0,
   "start_elevation_m": 785.3051975378861,
   "end_elevation_m": 789.417050822147,
   "start_xy": [
    2558386.372875642,
    1147637.5789764626
   ],
   "end_xy": [
    2558392.6456293515,
    1147656.30658289
   ]
  },
  "max_25m": {
   "gradient_pct": 20.030362025439445,
   "start_distance_m": 1478.0,
   "end_distance_m": 1503.0,
   "midpoint_distance_m": 1490.5,
   "start_elevation_m": 784.4094603157871,
   "end_elevation_m": 789.417050822147,
   "start_xy": [
    2558383.5327552124,
    1147633.46391681
   ],
   "end_xy": [
    2558392.6456293515,
    1147656.30658289
   ]
  },
  "max_50m": {
   "gradient_pct": 18.75448317210521,
   "start_distance_m": 1453.0,
   "end_distance_m": 1503.0,
   "midpoint_distance_m": 1478.0,
   "start_elevation_m": 780.0398092360944,
   "end_elevation_m": 789.417050822147,
   "start_xy": [
    2558377.4930427503,
    1147609.760095256
   ],
   "end_xy": [
    2558392.6456293515,
    1147656.30658289
   ]
  },
  "max_100m": {
   "gradient_pct": 17.95562593176146,
   "start_distance_m": 1403.0,
   "end_distance_m": 1503.0,
   "midpoint_distance_m": 1453.0,
   "start_elevation_m": 771.4614248903855,
   "end_elevation_m": 789.417050822147,
   "start_xy": [
    2558369.6516905692,
    1147560.4389686934
   ],
   "end_xy": [
    2558392.6456293515,
    1147656.30658289
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.490307994788054,
   "start_distance_m": 6311.0,
   "end_distance_m": 6316.0,
   "midpoint_distance_m": 6313.5,
   "start_elevation_m": 1296.8837124792215,
   "end_elevation_m": 1296.159197079482,
   "start_xy": [
    2559479.0043125693,
    1148822.5242707506
   ],
   "end_xy": [
    2559476.7150180344,
    1148818.0791463954
   ]
  },
  "min_10m": {
   "gradient_pct": -12.581505310643024,
   "start_distance_m": 6309.0,
   "end_distance_m": 6319.0,
   "midpoint_distance_m": 6314.0,
   "start_elevation_m": 1297.0891458191031,
   "end_elevation_m": 1295.8309952880388,
   "start_xy": [
    2559479.920030383,
    1148824.3023204927
   ],
   "end_xy": [
    2559475.3414413137,
    1148815.4120717824
   ]
  },
  "min_20m": {
   "gradient_pct": -9.697348240199517,
   "start_distance_m": 6308.0,
   "end_distance_m": 6328.0,
   "midpoint_distance_m": 6318.0,
   "start_elevation_m": 1297.1321650627503,
   "end_elevation_m": 1295.1926954147104,
   "start_xy": [
    2559480.35400219,
    1148825.200764524
   ],
   "end_xy": [
    2559471.220711151,
    1148807.4108479428
   ]
  },
  "min_25m": {
   "gradient_pct": -8.583321104584684,
   "start_distance_m": 6308.0,
   "end_distance_m": 6333.0,
   "midpoint_distance_m": 6320.5,
   "start_elevation_m": 1297.1321650627503,
   "end_elevation_m": 1294.9863347866042,
   "start_xy": [
    2559480.35400219,
    1148825.200764524
   ],
   "end_xy": [
    2559468.9314166163,
    1148802.9657235877
   ]
  },
  "min_50m": {
   "gradient_pct": -6.78493510856606,
   "start_distance_m": 6308.0,
   "end_distance_m": 6358.0,
   "midpoint_distance_m": 6333.0,
   "start_elevation_m": 1297.1321650627503,
   "end_elevation_m": 1293.7396975084673,
   "start_xy": [
    2559480.35400219,
    1148825.200764524
   ],
   "end_xy": [
    2559457.484943943,
    1148780.7401018115
   ]
  },
  "min_100m": {
   "gradient_pct": -5.688025458644233,
   "start_distance_m": 6257.0,
   "end_distance_m": 6357.0,
   "midpoint_distance_m": 6307.0,
   "start_elevation_m": 1299.4828100708214,
   "end_elevation_m": 1293.7947846121772,
   "start_xy": [
    2559494.2330841073,
    1148874.275922039
   ],
   "end_xy": [
    2559457.94280285,
    1148781.6291266824
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.98579141613891,
   "start_distance_m": 1313.0,
   "end_distance_m": 1315.0,
   "midpoint_distance_m": 1314.0,
   "start_elevation_m": 759.2211682751905,
   "end_elevation_m": 759.8608841035133,
   "start_xy": [
    2558364.9542366127,
    1147475.8872937008
   ],
   "end_xy": [
    2558366.6812701384,
    1147476.8959339748
   ]
  },
  "max_3m": {
   "gradient_pct": 24.697991655481626,
   "start_distance_m": 5816.0,
   "end_distance_m": 5819.0,
   "midpoint_distance_m": 5817.5,
   "start_elevation_m": 1250.732408041441,
   "end_elevation_m": 1251.4733477911054,
   "start_xy": [
    2559516.1682250104,
    1149311.9439788319
   ],
   "end_xy": [
    2559516.0180157265,
    1149308.9477416633
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.001,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    5559.0,
    5564.0
   ]
  ],
  "review": [],
  "extent": [
   "descends_at_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_2021_2557-1146_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2557-1147_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2558-1146_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2558-1147_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2558-1148_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2558-1149_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2559-1147_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2559-1148_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2559-1149_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:43:04+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": [
   "2557-1146",
   "2557-1147",
   "2558-1146",
   "2558-1147",
   "2558-1148",
   "2558-1149",
   "2559-1147",
   "2559-1148",
   "2559-1149"
  ],
  "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": "Blonay - Saint-L\u00e9gier",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}