{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.8911, 8.3191)",
 "slug": "discovered-lane-46-8911-8-3191",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.672814945940445,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3545.0,
   "end_distance_m": 3547.0,
   "start_elevation_m": 1429.2900613094528,
   "end_elevation_m": 1429.7435176083716,
   "min_gradient_pct": -8.445266288617859
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.459021277648088,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3544.0,
   "end_distance_m": 3547.0,
   "start_elevation_m": 1429.0997469700421,
   "end_elevation_m": 1429.7435176083716,
   "min_gradient_pct": -7.983007480872099
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.218338915146887,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3543.0,
   "end_distance_m": 3548.0,
   "start_elevation_m": 1428.908146983992,
   "end_elevation_m": 1429.9190639297494,
   "min_gradient_pct": -6.821939623077924
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 18.039635149827973,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3540.0,
   "end_distance_m": 3550.0,
   "start_elevation_m": 1428.4572120253115,
   "end_elevation_m": 1430.2611755402943,
   "min_gradient_pct": -3.3346883743229228
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 15.642080674232375,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3538.0,
   "end_distance_m": 3558.0,
   "start_elevation_m": 1428.1966580928527,
   "end_elevation_m": 1431.3250742276991,
   "min_gradient_pct": -2.5915173635257815
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 15.033503273439237,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3961.0,
   "end_distance_m": 3986.0,
   "start_elevation_m": 1471.4161590321157,
   "end_elevation_m": 1475.1745348504755,
   "min_gradient_pct": -1.9312016112216952
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.819034276905768,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3972.0,
   "end_distance_m": 4022.0,
   "start_elevation_m": 1472.9939779968017,
   "end_elevation_m": 1480.4034951352546,
   "min_gradient_pct": 1.7518345233415857
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.313234732174351,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3927.0,
   "end_distance_m": 4027.0,
   "start_elevation_m": 1466.8081002130752,
   "end_elevation_m": 1481.1213349452496,
   "min_gradient_pct": 5.209840301148233
  }
 ],
 "shape": {
  "ascent_concentration": 0.287,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 997.0,
  "shape_class": "sustained"
 },
 "length_m": 4144.416127106156,
 "start_elevation_m": 1033.3354412734423,
 "end_elevation_m": 1493.4669872558559,
 "endpoint_gain_m": 460.1315459824136,
 "overall_gradient_pct": 11.10244560079205,
 "accumulated_ascent_m": 461.3967128558181,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.218338915146887,
   "start_distance_m": 3543.0,
   "end_distance_m": 3548.0,
   "midpoint_distance_m": 3545.5,
   "start_elevation_m": 1428.908146983992,
   "end_elevation_m": 1429.9190639297494,
   "start_xy": [
    2667215.689367644,
    1193172.5288455402
   ],
   "end_xy": [
    2667216.986995091,
    1193167.7001642494
   ]
  },
  "max_10m": {
   "gradient_pct": 18.039635149827973,
   "start_distance_m": 3540.0,
   "end_distance_m": 3550.0,
   "midpoint_distance_m": 3545.0,
   "start_elevation_m": 1428.4572120253115,
   "end_elevation_m": 1430.2611755402943,
   "start_xy": [
    2667214.910791176,
    1193175.426054315
   ],
   "end_xy": [
    2667216.990601811,
    1193165.7533636612
   ]
  },
  "max_20m": {
   "gradient_pct": 15.642080674232375,
   "start_distance_m": 3538.0,
   "end_distance_m": 3558.0,
   "midpoint_distance_m": 3548.0,
   "start_elevation_m": 1428.1966580928527,
   "end_elevation_m": 1431.3250742276991,
   "start_xy": [
    2667214.3671816452,
    1193177.3506454236
   ],
   "end_xy": [
    2667215.3771594977,
    1193157.9177523958
   ]
  },
  "max_25m": {
   "gradient_pct": 15.033503273439237,
   "start_distance_m": 3961.0,
   "end_distance_m": 3986.0,
   "midpoint_distance_m": 3973.5,
   "start_elevation_m": 1471.4161590321157,
   "end_elevation_m": 1475.1745348504755,
   "start_xy": [
    2667011.0716565903,
    1192987.319178763
   ],
   "end_xy": [
    2666986.299496211,
    1192984.3922608346
   ]
  },
  "max_50m": {
   "gradient_pct": 14.819034276905768,
   "start_distance_m": 3972.0,
   "end_distance_m": 4022.0,
   "midpoint_distance_m": 3997.0,
   "start_elevation_m": 1472.9939779968017,
   "end_elevation_m": 1480.4034951352546,
   "start_xy": [
    2667000.1048558564,
    1192986.4651988726
   ],
   "end_xy": [
    2666951.5816622567,
    1192974.9871026229
   ]
  },
  "max_100m": {
   "gradient_pct": 14.313234732174351,
   "start_distance_m": 3927.0,
   "end_distance_m": 4027.0,
   "midpoint_distance_m": 3977.0,
   "start_elevation_m": 1466.8081002130752,
   "end_elevation_m": 1481.1213349452496,
   "start_xy": [
    2667044.959613498,
    1192990.0759665584
   ],
   "end_xy": [
    2666946.8239420285,
    1192973.449540193
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.821939623077924,
   "start_distance_m": 1620.0,
   "end_distance_m": 1625.0,
   "midpoint_distance_m": 1622.5,
   "start_elevation_m": 1239.8438073135958,
   "end_elevation_m": 1239.502710332442,
   "start_xy": [
    2667034.304861635,
    1194883.0531128163
   ],
   "end_xy": [
    2667029.47925434,
    1194882.9637588873
   ]
  },
  "min_10m": {
   "gradient_pct": -3.3346883743229228,
   "start_distance_m": 3658.0,
   "end_distance_m": 3668.0,
   "midpoint_distance_m": 3663.0,
   "start_elevation_m": 1440.1747811235002,
   "end_elevation_m": 1439.841312286068,
   "start_xy": [
    2667260.4091849383,
    1193086.8004379768
   ],
   "end_xy": [
    2667269.1367953187,
    1193082.0820453835
   ]
  },
  "min_20m": {
   "gradient_pct": -2.5915173635257815,
   "start_distance_m": 3657.0,
   "end_distance_m": 3677.0,
   "midpoint_distance_m": 3667.0,
   "start_elevation_m": 1440.1842511172665,
   "end_elevation_m": 1439.6659476445614,
   "start_xy": [
    2667259.438210702,
    1193087.0396220752
   ],
   "end_xy": [
    2667270.4650304867,
    1193074.1775535857
   ]
  },
  "min_25m": {
   "gradient_pct": -1.9312016112216952,
   "start_distance_m": 3652.0,
   "end_distance_m": 3677.0,
   "midpoint_distance_m": 3664.5,
   "start_elevation_m": 1440.1487480473668,
   "end_elevation_m": 1439.6659476445614,
   "start_xy": [
    2667254.5833395217,
    1193088.235542566
   ],
   "end_xy": [
    2667270.4650304867,
    1193074.1775535857
   ]
  },
  "min_50m": {
   "gradient_pct": 1.7518345233415857,
   "start_distance_m": 3644.0,
   "end_distance_m": 3694.0,
   "midpoint_distance_m": 3669.0,
   "start_elevation_m": 1439.695658873994,
   "end_elevation_m": 1440.5715761356648,
   "start_xy": [
    2667246.815545633,
    1193090.1490153517
   ],
   "end_xy": [
    2667257.134435745,
    1193064.652037812
   ]
  },
  "min_100m": {
   "gradient_pct": 5.209840301148233,
   "start_distance_m": 3611.0,
   "end_distance_m": 3711.0,
   "midpoint_distance_m": 3661.0,
   "start_elevation_m": 1436.951564691955,
   "end_elevation_m": 1442.1614049931031,
   "start_xy": [
    2667220.978475937,
    1193105.9039233122
   ],
   "end_xy": [
    2667241.1495550782,
    1193058.867907973
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.672814945940445,
   "start_distance_m": 3545.0,
   "end_distance_m": 3547.0,
   "midpoint_distance_m": 3546.0,
   "start_elevation_m": 1429.2900613094528,
   "end_elevation_m": 1429.7435176083716,
   "start_xy": [
    2667216.208418623,
    1193170.597373024
   ],
   "end_xy": [
    2667216.7274696017,
    1193168.6659005077
   ]
  },
  "max_3m": {
   "gradient_pct": 21.459021277648088,
   "start_distance_m": 3544.0,
   "end_distance_m": 3547.0,
   "midpoint_distance_m": 3545.5,
   "start_elevation_m": 1429.0997469700421,
   "end_elevation_m": 1429.7435176083716,
   "start_xy": [
    2667215.9488931336,
    1193171.5631092822
   ],
   "end_xy": [
    2667216.7274696017,
    1193168.6659005077
   ]
  }
 },
 "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_start_earlier"
  ]
 },
 "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_2022_2666-1192_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2666-1193_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2666-1194_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2666-1195_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2667-1192_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2667-1193_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2667-1194_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2667-1195_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T03:03:17+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": [
   "2666-1192",
   "2666-1193",
   "2666-1194",
   "2666-1195",
   "2667-1192",
   "2667-1193",
   "2667-1194",
   "2667-1195"
  ],
  "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": "Kerns",
  "county": "Obwalden",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}