{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.8847, 6.7400)",
 "slug": "discovered-lane-46-8847-6-7400",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.123342280960742,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1440.0,
   "end_distance_m": 1442.0,
   "start_elevation_m": 640.6654602994829,
   "end_elevation_m": 641.2879271451021,
   "min_gradient_pct": -91.82348241452587,
   "suppressed_max_gradient_pct": 53.613288342660326,
   "suppressed_location_m": [
    1345.0,
    1347.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.43558952388412,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1416.0,
   "end_distance_m": 1419.0,
   "start_elevation_m": 637.9197558036178,
   "end_elevation_m": 638.7428234893343,
   "min_gradient_pct": -71.11581498944588,
   "suppressed_max_gradient_pct": 51.50459396644086,
   "suppressed_location_m": [
    1345.0,
    1348.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.460056468743915,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1440.0,
   "end_distance_m": 1445.0,
   "start_elevation_m": 640.6654602994829,
   "end_elevation_m": 641.9384631229201,
   "min_gradient_pct": -50.952983343966025,
   "suppressed_max_gradient_pct": 38.626680426996245,
   "suppressed_location_m": [
    1344.0,
    1349.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.775522865043285,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 591.0,
   "end_distance_m": 601.0,
   "start_elevation_m": 604.0871645446033,
   "end_elevation_m": 606.1647168311076,
   "min_gradient_pct": -36.75353605039277,
   "suppressed_max_gradient_pct": 31.804429548036524,
   "suppressed_location_m": [
    1338.0,
    1348.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.266257975688404,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 582.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 602.3158750889565,
   "end_elevation_m": 606.3691266840942,
   "min_gradient_pct": -17.218204103421613,
   "suppressed_max_gradient_pct": 23.749059844494127,
   "suppressed_location_m": [
    1331.0,
    1351.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.14022705962634,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 582.0,
   "end_distance_m": 607.0,
   "start_elevation_m": 602.3158750889565,
   "end_elevation_m": 607.3509318538631,
   "min_gradient_pct": -13.013504975756405,
   "suppressed_max_gradient_pct": 20.45319207997227,
   "suppressed_location_m": [
    1326.0,
    1351.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.274635828756118,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 559.0,
   "end_distance_m": 609.0,
   "start_elevation_m": 598.0532772461354,
   "end_elevation_m": 607.6905951605135,
   "min_gradient_pct": -6.701104495663003
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.304041748599957,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 558.0,
   "end_distance_m": 658.0,
   "start_elevation_m": 597.8852434665124,
   "end_elevation_m": 615.1892852151124,
   "min_gradient_pct": -6.08198804464439
  }
 ],
 "shape": {
  "ascent_concentration": 0.438,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 164.0,
  "shape_class": "sustained"
 },
 "length_m": 1722.1500642677752,
 "start_elevation_m": 552.6315565430184,
 "end_elevation_m": 656.555099083991,
 "endpoint_gain_m": 103.92354254097256,
 "overall_gradient_pct": 6.034523047511474,
 "accumulated_ascent_m": 122.13721093684023,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.460056468743915,
   "start_distance_m": 1440.0,
   "end_distance_m": 1445.0,
   "midpoint_distance_m": 1442.5,
   "start_elevation_m": 640.6654602994829,
   "end_elevation_m": 641.9384631229201,
   "start_xy": [
    2546489.1575231445,
    1192941.8561934056
   ],
   "end_xy": [
    2546486.99442866,
    1192946.3640778596
   ]
  },
  "max_10m": {
   "gradient_pct": 20.775522865043285,
   "start_distance_m": 591.0,
   "end_distance_m": 601.0,
   "midpoint_distance_m": 596.0,
   "start_elevation_m": 604.0871645446033,
   "end_elevation_m": 606.1647168311076,
   "start_xy": [
    2547146.968101101,
    1193022.1141382759
   ],
   "end_xy": [
    2547136.968635754,
    1193022.0107323637
   ]
  },
  "max_20m": {
   "gradient_pct": 20.266257975688404,
   "start_distance_m": 582.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 592.0,
   "start_elevation_m": 602.3158750889565,
   "end_elevation_m": 606.3691266840942,
   "start_xy": [
    2547155.9676199127,
    1193022.2072035968
   ],
   "end_xy": [
    2547135.9686892196,
    1193022.0003917725
   ]
  },
  "max_25m": {
   "gradient_pct": 20.14022705962634,
   "start_distance_m": 582.0,
   "end_distance_m": 607.0,
   "midpoint_distance_m": 594.5,
   "start_elevation_m": 602.3158750889565,
   "end_elevation_m": 607.3509318538631,
   "start_xy": [
    2547155.9676199127,
    1193022.2072035968
   ],
   "end_xy": [
    2547131.2568154577,
    1193020.3980921018
   ]
  },
  "max_50m": {
   "gradient_pct": 19.274635828756118,
   "start_distance_m": 559.0,
   "end_distance_m": 609.0,
   "midpoint_distance_m": 584.0,
   "start_elevation_m": 598.0532772461354,
   "end_elevation_m": 607.6905951605135,
   "start_xy": [
    2547178.9663902097,
    1193022.445037195
   ],
   "end_xy": [
    2547129.500532706,
    1193019.4937267608
   ]
  },
  "max_100m": {
   "gradient_pct": 17.304041748599957,
   "start_distance_m": 558.0,
   "end_distance_m": 658.0,
   "midpoint_distance_m": 608.0,
   "start_elevation_m": 597.8852434665124,
   "end_elevation_m": 615.1892852151124,
   "start_xy": [
    2547179.9584415336,
    1193022.5324953778
   ],
   "end_xy": [
    2547091.63645918,
    1193023.6034606264
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -50.952983343966025,
   "start_distance_m": 1352.0,
   "end_distance_m": 1357.0,
   "midpoint_distance_m": 1354.5,
   "start_elevation_m": 638.507097602658,
   "end_elevation_m": 635.9594484354596,
   "start_xy": [
    2546554.0906460145,
    1192884.5974867146
   ],
   "end_xy": [
    2546549.89511239,
    1192887.3167555649
   ]
  },
  "min_10m": {
   "gradient_pct": -36.75353605039277,
   "start_distance_m": 1351.0,
   "end_distance_m": 1361.0,
   "midpoint_distance_m": 1356.0,
   "start_elevation_m": 638.8041024040508,
   "end_elevation_m": 635.1287487990115,
   "start_xy": [
    2546554.940923064,
    1192884.0711513278
   ],
   "end_xy": [
    2546546.5514150057,
    1192889.5121343029
   ]
  },
  "min_20m": {
   "gradient_pct": -17.218204103421613,
   "start_distance_m": 1351.0,
   "end_distance_m": 1371.0,
   "midpoint_distance_m": 1361.0,
   "start_elevation_m": 638.8041024040508,
   "end_elevation_m": 635.3604615833665,
   "start_xy": [
    2546554.940923064,
    1192884.0711513278
   ],
   "end_xy": [
    2546538.1921715452,
    1192895.0005811474
   ]
  },
  "min_25m": {
   "gradient_pct": -13.013504975756405,
   "start_distance_m": 1351.0,
   "end_distance_m": 1376.0,
   "midpoint_distance_m": 1363.5,
   "start_elevation_m": 638.8041024040508,
   "end_elevation_m": 635.5507261601117,
   "start_xy": [
    2546554.940923064,
    1192884.0711513278
   ],
   "end_xy": [
    2546534.012549815,
    1192897.7448045695
   ]
  },
  "min_50m": {
   "gradient_pct": -6.701104495663003,
   "start_distance_m": 1068.0,
   "end_distance_m": 1118.0,
   "midpoint_distance_m": 1093.0,
   "start_elevation_m": 632.9747169649007,
   "end_elevation_m": 629.6241647170692,
   "start_xy": [
    2546825.4026552774,
    1192860.8027519416
   ],
   "end_xy": [
    2546777.7367888507,
    1192850.1905509122
   ]
  },
  "min_100m": {
   "gradient_pct": -6.08198804464439,
   "start_distance_m": 1024.0,
   "end_distance_m": 1124.0,
   "midpoint_distance_m": 1074.0,
   "start_elevation_m": 635.4587612196931,
   "end_elevation_m": 629.3767731750487,
   "start_xy": [
    2546848.618065187,
    1192896.365092239
   ],
   "end_xy": [
    2546771.9099453655,
    1192851.6059267288
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.123342280960742,
   "start_distance_m": 1440.0,
   "end_distance_m": 1442.0,
   "midpoint_distance_m": 1441.0,
   "start_elevation_m": 640.6654602994829,
   "end_elevation_m": 641.2879271451021,
   "start_xy": [
    2546489.1575231445,
    1192941.8561934056
   ],
   "end_xy": [
    2546488.2922853506,
    1192943.659347187
   ]
  },
  "max_3m": {
   "gradient_pct": 27.43558952388412,
   "start_distance_m": 1416.0,
   "end_distance_m": 1419.0,
   "midpoint_distance_m": 1417.5,
   "start_elevation_m": 637.9197558036178,
   "end_elevation_m": 638.7428234893343,
   "start_xy": [
    2546503.0243394217,
    1192922.558817909
   ],
   "end_xy": [
    2546501.011068982,
    1192924.7829451847
   ]
  }
 },
 "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": 0.018,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "placement_suppression": {
   "masked_fraction": 0.02,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    1330.0,
    1363.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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_2021_2546-1192_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2546-1193_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2547-1192_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2547-1193_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:01:58+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": [
   "2546-1192",
   "2546-1193",
   "2547-1192",
   "2547-1193"
  ],
  "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": "La Grande-B\u00e9roche",
  "county": "Neuch\u00e2tel",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}