{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.7811, 7.6787)",
 "slug": "discovered-lane-46-7811-7-6787",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.630421372931323,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1181.0,
   "end_distance_m": 1183.0,
   "start_elevation_m": 906.2354159370516,
   "end_elevation_m": 906.7680243645102,
   "min_gradient_pct": -37.35030717284076,
   "suppressed_max_gradient_pct": 165.27178475275264,
   "suppressed_location_m": [
    6.0,
    8.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.681187475967665,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1156.0,
   "end_distance_m": 1159.0,
   "start_elevation_m": 901.0190736178314,
   "end_elevation_m": 901.7595092421104,
   "min_gradient_pct": -24.183035665801828,
   "suppressed_max_gradient_pct": 149.93489076175214,
   "suppressed_location_m": [
    6.0,
    9.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.443224781326535,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1149.0,
   "end_distance_m": 1154.0,
   "start_elevation_m": 899.4533324095685,
   "end_elevation_m": 900.6254936486348,
   "min_gradient_pct": -13.369704996789551,
   "suppressed_max_gradient_pct": 99.07135624109742,
   "suppressed_location_m": [
    5.0,
    10.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.061768325419507,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1149.0,
   "end_distance_m": 1159.0,
   "start_elevation_m": 899.4533324095685,
   "end_elevation_m": 901.7595092421104,
   "min_gradient_pct": -3.0341697918652244,
   "suppressed_max_gradient_pct": 56.61268851252089,
   "suppressed_location_m": [
    5.0,
    15.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.833350383190805,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 314.0,
   "end_distance_m": 334.0,
   "start_elevation_m": 804.2880148077109,
   "end_elevation_m": 808.854684884349,
   "min_gradient_pct": -2.315887878447711,
   "suppressed_max_gradient_pct": 34.04297654072366,
   "suppressed_location_m": [
    5.0,
    25.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.60108066220755,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 309.0,
   "end_distance_m": 334.0,
   "start_elevation_m": 803.2044147187971,
   "end_elevation_m": 808.854684884349,
   "min_gradient_pct": -2.2276271279852153,
   "suppressed_max_gradient_pct": 29.439590381271046,
   "suppressed_location_m": [
    5.0,
    30.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.594407296469626,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1133.0,
   "end_distance_m": 1183.0,
   "start_elevation_m": 895.9708207162754,
   "end_elevation_m": 906.7680243645102,
   "min_gradient_pct": -1.7347727951430443
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.96890576081637,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1100.0,
   "end_distance_m": 1200.0,
   "start_elevation_m": 889.212339419077,
   "end_elevation_m": 910.1812451798934,
   "min_gradient_pct": -0.3619753870701743
  }
 ],
 "shape": {
  "ascent_concentration": 0.338,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 278.0,
  "shape_class": "sustained"
 },
 "length_m": 1695.7327898709646,
 "start_elevation_m": 754.0972572224957,
 "end_elevation_m": 951.2645388330069,
 "endpoint_gain_m": 197.16728161051117,
 "overall_gradient_pct": 11.627261251786873,
 "accumulated_ascent_m": 200.95698889095706,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.443224781326535,
   "start_distance_m": 1149.0,
   "end_distance_m": 1154.0,
   "midpoint_distance_m": 1151.5,
   "start_elevation_m": 899.4533324095685,
   "end_elevation_m": 900.6254936486348,
   "start_xy": [
    2618673.1644293624,
    1180795.8910993205
   ],
   "end_xy": [
    2618677.577332722,
    1180793.540294365
   ]
  },
  "max_10m": {
   "gradient_pct": 23.061768325419507,
   "start_distance_m": 1149.0,
   "end_distance_m": 1159.0,
   "midpoint_distance_m": 1154.0,
   "start_elevation_m": 899.4533324095685,
   "end_elevation_m": 901.7595092421104,
   "start_xy": [
    2618673.1644293624,
    1180795.8910993205
   ],
   "end_xy": [
    2618681.9902360816,
    1180791.1894894096
   ]
  },
  "max_20m": {
   "gradient_pct": 22.833350383190805,
   "start_distance_m": 314.0,
   "end_distance_m": 334.0,
   "midpoint_distance_m": 324.0,
   "start_elevation_m": 804.2880148077109,
   "end_elevation_m": 808.854684884349,
   "start_xy": [
    2618156.742110614,
    1181296.081994711
   ],
   "end_xy": [
    2618176.7017154014,
    1181297.3524972668
   ]
  },
  "max_25m": {
   "gradient_pct": 22.60108066220755,
   "start_distance_m": 309.0,
   "end_distance_m": 334.0,
   "midpoint_distance_m": 321.5,
   "start_elevation_m": 803.2044147187971,
   "end_elevation_m": 808.854684884349,
   "start_xy": [
    2618151.7522094175,
    1181295.764369072
   ],
   "end_xy": [
    2618176.7017154014,
    1181297.3524972668
   ]
  },
  "max_50m": {
   "gradient_pct": 21.594407296469626,
   "start_distance_m": 1133.0,
   "end_distance_m": 1183.0,
   "midpoint_distance_m": 1158.0,
   "start_elevation_m": 895.9708207162754,
   "end_elevation_m": 906.7680243645102,
   "start_xy": [
    2618658.8881630544,
    1180803.1088835655
   ],
   "end_xy": [
    2618703.172172208,
    1180779.9056256234
   ]
  },
  "max_100m": {
   "gradient_pct": 20.96890576081637,
   "start_distance_m": 1100.0,
   "end_distance_m": 1200.0,
   "midpoint_distance_m": 1150.0,
   "start_elevation_m": 889.212339419077,
   "end_elevation_m": 910.1812451798934,
   "start_xy": [
    2618629.931395591,
    1180818.8604383261
   ],
   "end_xy": [
    2618718.153614262,
    1180771.8715113369
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.369704996789551,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 754.0972572224957,
   "end_elevation_m": 753.4287719726562,
   "start_xy": [
    2617876.546,
    1181189.289
   ],
   "end_xy": [
    2617880.3435407416,
    1181192.5414889418
   ]
  },
  "min_10m": {
   "gradient_pct": -3.0341697918652244,
   "start_distance_m": 1305.0,
   "end_distance_m": 1315.0,
   "midpoint_distance_m": 1310.0,
   "start_elevation_m": 917.5061440161626,
   "end_elevation_m": 917.2027270369761,
   "start_xy": [
    2618749.3554490358,
    1180677.9558174238
   ],
   "end_xy": [
    2618749.9210265633,
    1180667.999971397
   ]
  },
  "min_20m": {
   "gradient_pct": -2.315887878447711,
   "start_distance_m": 1301.0,
   "end_distance_m": 1321.0,
   "midpoint_distance_m": 1311.0,
   "start_elevation_m": 917.5865012936868,
   "end_elevation_m": 917.1233237179972,
   "start_xy": [
    2618748.4889424485,
    1180681.86083552
   ],
   "end_xy": [
    2618749.4178866935,
    1180662.0301680479
   ]
  },
  "min_25m": {
   "gradient_pct": -2.2276271279852153,
   "start_distance_m": 1299.0,
   "end_distance_m": 1324.0,
   "midpoint_distance_m": 1311.5,
   "start_elevation_m": 917.6135841823477,
   "end_elevation_m": 917.0566774003514,
   "start_xy": [
    2618748.013206404,
    1180683.8033456039
   ],
   "end_xy": [
    2618748.910181999,
    1180659.0734408128
   ]
  },
  "min_50m": {
   "gradient_pct": -1.7347727951430443,
   "start_distance_m": 1265.0,
   "end_distance_m": 1315.0,
   "midpoint_distance_m": 1290.0,
   "start_elevation_m": 918.0701134345476,
   "end_elevation_m": 917.2027270369761,
   "start_xy": [
    2618735.983694863,
    1180715.5550403586
   ],
   "end_xy": [
    2618749.9210265633,
    1180667.999971397
   ]
  },
  "min_100m": {
   "gradient_pct": -0.3619753870701743,
   "start_distance_m": 1249.0,
   "end_distance_m": 1349.0,
   "midpoint_distance_m": 1299.0,
   "start_elevation_m": 917.9681921286284,
   "end_elevation_m": 917.6062167415582,
   "start_xy": [
    2618732.0014668754,
    1180731.0201097643
   ],
   "end_xy": [
    2618734.5419563297,
    1180639.318665078
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.630421372931323,
   "start_distance_m": 1181.0,
   "end_distance_m": 1183.0,
   "midpoint_distance_m": 1182.0,
   "start_elevation_m": 906.2354159370516,
   "end_elevation_m": 906.7680243645102,
   "start_xy": [
    2618701.407010864,
    1180780.8459476056
   ],
   "end_xy": [
    2618703.172172208,
    1180779.9056256234
   ]
  },
  "max_3m": {
   "gradient_pct": 24.681187475967665,
   "start_distance_m": 1156.0,
   "end_distance_m": 1159.0,
   "midpoint_distance_m": 1157.5,
   "start_elevation_m": 901.0190736178314,
   "end_elevation_m": 901.7595092421104,
   "start_xy": [
    2618679.342494066,
    1180792.599972383
   ],
   "end_xy": [
    2618681.9902360816,
    1180791.1894894096
   ]
  }
 },
 "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": 0.007,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    11.0
   ]
  ],
  "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_2025_2617-1180_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2617-1181_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2618-1180_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2618-1181_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T02:43:47+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": [
   "2617-1180",
   "2617-1181",
   "2618-1180",
   "2618-1181"
  ],
  "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": "Homberg",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}