{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.9677, 9.5289)",
 "slug": "discovered-lane-46-9677-9-5289",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.53645952612351,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 319.0,
   "end_distance_m": 321.0,
   "start_elevation_m": 848.2332428516993,
   "end_elevation_m": 849.1639720422218,
   "min_gradient_pct": -16.79675930768667,
   "suppressed_max_gradient_pct": 59.53538775141851,
   "suppressed_location_m": [
    20.0,
    22.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 44.8498306493093,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 318.0,
   "end_distance_m": 321.0,
   "start_elevation_m": 847.8184771227425,
   "end_elevation_m": 849.1639720422218,
   "min_gradient_pct": -16.063111012495785,
   "suppressed_max_gradient_pct": 57.14470205001968,
   "suppressed_location_m": [
    20.0,
    23.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 44.19075410903133,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 316.0,
   "end_distance_m": 321.0,
   "start_elevation_m": 846.9544343367702,
   "end_elevation_m": 849.1639720422218,
   "min_gradient_pct": -15.035255608406715,
   "suppressed_max_gradient_pct": 50.8303961843535,
   "suppressed_location_m": [
    19.0,
    24.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 42.02010586083361,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 315.0,
   "end_distance_m": 325.0,
   "start_elevation_m": 846.5905489915706,
   "end_elevation_m": 850.792559577654,
   "min_gradient_pct": -13.969798428611284
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 37.91000616895076,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 316.0,
   "end_distance_m": 336.0,
   "start_elevation_m": 846.9544343367702,
   "end_elevation_m": 854.5364355705603,
   "min_gradient_pct": -11.338369013693068
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 36.83339298594865,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 315.0,
   "end_distance_m": 340.0,
   "start_elevation_m": 846.5905489915706,
   "end_elevation_m": 855.7988972380577,
   "min_gradient_pct": -9.586026430127276,
   "lateral_min_pct": 33.97,
   "lateral_max_pct": 38.96
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 29.838362446980454,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 310.0,
   "end_distance_m": 360.0,
   "start_elevation_m": 845.5493870079125,
   "end_elevation_m": 860.4685682314027,
   "min_gradient_pct": -4.34889185641623
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 24.771082782226813,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 169.0,
   "end_distance_m": 269.0,
   "start_elevation_m": 815.5070840103142,
   "end_elevation_m": 840.278166792541,
   "min_gradient_pct": 1.3464979811035391
  }
 ],
 "shape": {
  "ascent_concentration": 0.307,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 491.0,
  "shape_class": "sustained"
 },
 "length_m": 2489.626601130902,
 "start_elevation_m": 798.1635605317385,
 "end_elevation_m": 1132.3910567968812,
 "endpoint_gain_m": 334.2274962651427,
 "overall_gradient_pct": 13.424804190046865,
 "accumulated_ascent_m": 338.1234508263458,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 44.19075410903133,
   "start_distance_m": 316.0,
   "end_distance_m": 321.0,
   "midpoint_distance_m": 318.5,
   "start_elevation_m": 846.9544343367702,
   "end_elevation_m": 849.1639720422218,
   "start_xy": [
    2759575.6233796384,
    1203874.1505092173
   ],
   "end_xy": [
    2759571.0889271297,
    1203872.3018814065
   ]
  },
  "max_10m": {
   "gradient_pct": 42.02010586083361,
   "start_distance_m": 315.0,
   "end_distance_m": 325.0,
   "midpoint_distance_m": 320.0,
   "start_elevation_m": 846.5905489915706,
   "end_elevation_m": 850.792559577654,
   "start_xy": [
    2759576.477375018,
    1203874.6707898064
   ],
   "end_xy": [
    2759567.1219299342,
    1203871.7891112359
   ]
  },
  "max_20m": {
   "gradient_pct": 37.91000616895076,
   "start_distance_m": 316.0,
   "end_distance_m": 336.0,
   "midpoint_distance_m": 326.0,
   "start_elevation_m": 846.9544343367702,
   "end_elevation_m": 854.5364355705603,
   "start_xy": [
    2759575.6233796384,
    1203874.1505092173
   ],
   "end_xy": [
    2759556.2126876456,
    1203870.378993267
   ]
  },
  "max_25m": {
   "gradient_pct": 36.83339298594865,
   "start_distance_m": 315.0,
   "end_distance_m": 340.0,
   "midpoint_distance_m": 327.5,
   "start_elevation_m": 846.5905489915706,
   "end_elevation_m": 855.7988972380577,
   "start_xy": [
    2759576.477375018,
    1203874.6707898064
   ],
   "end_xy": [
    2759552.2456904496,
    1203869.8662230966
   ]
  },
  "max_50m": {
   "gradient_pct": 29.838362446980454,
   "start_distance_m": 310.0,
   "end_distance_m": 360.0,
   "midpoint_distance_m": 335.0,
   "start_elevation_m": 845.5493870079125,
   "end_elevation_m": 860.4685682314027,
   "start_xy": [
    2759580.747351917,
    1203877.2721927515
   ],
   "end_xy": [
    2759532.3212432247,
    1203868.3001290017
   ]
  },
  "max_100m": {
   "gradient_pct": 24.771082782226813,
   "start_distance_m": 169.0,
   "end_distance_m": 269.0,
   "midpoint_distance_m": 219.0,
   "start_elevation_m": 815.5070840103142,
   "end_elevation_m": 840.278166792541,
   "start_xy": [
    2759669.0864294055,
    1203976.37835542
   ],
   "end_xy": [
    2759609.1483236835,
    1203906.7521931604
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -15.035255608406715,
   "start_distance_m": 422.0,
   "end_distance_m": 427.0,
   "midpoint_distance_m": 424.5,
   "start_elevation_m": 866.5130626250051,
   "end_elevation_m": 865.7612998445848,
   "start_xy": [
    2759474.7482678844,
    1203847.5557887587
   ],
   "end_xy": [
    2759470.1674586325,
    1203845.551746194
   ]
  },
  "min_10m": {
   "gradient_pct": -13.969798428611284,
   "start_distance_m": 417.0,
   "end_distance_m": 427.0,
   "midpoint_distance_m": 422.0,
   "start_elevation_m": 867.1582796874459,
   "end_elevation_m": 865.7612998445848,
   "start_xy": [
    2759479.329077136,
    1203849.5598313236
   ],
   "end_xy": [
    2759470.1674586325,
    1203845.551746194
   ]
  },
  "min_20m": {
   "gradient_pct": -11.338369013693068,
   "start_distance_m": 415.0,
   "end_distance_m": 435.0,
   "midpoint_distance_m": 425.0,
   "start_elevation_m": 867.3348110152668,
   "end_elevation_m": 865.0671372125282,
   "start_xy": [
    2759481.1614008364,
    1203850.3614483494
   ],
   "end_xy": [
    2759462.9140795334,
    1203842.178102764
   ]
  },
  "min_25m": {
   "gradient_pct": -9.586026430127276,
   "start_distance_m": 414.0,
   "end_distance_m": 439.0,
   "midpoint_distance_m": 426.5,
   "start_elevation_m": 867.3634167856362,
   "end_elevation_m": 864.9669101781044,
   "start_xy": [
    2759482.0775626865,
    1203850.7622568624
   ],
   "end_xy": [
    2759459.2952962597,
    1203840.4738704974
   ]
  },
  "min_50m": {
   "gradient_pct": -4.34889185641623,
   "start_distance_m": 404.0,
   "end_distance_m": 454.0,
   "midpoint_distance_m": 429.0,
   "start_elevation_m": 867.2109993635793,
   "end_elevation_m": 865.0365534353712,
   "start_xy": [
    2759491.2391811893,
    1203854.770341992
   ],
   "end_xy": [
    2759444.9162493963,
    1203836.2576400274
   ]
  },
  "min_100m": {
   "gradient_pct": 1.3464979811035391,
   "start_distance_m": 404.0,
   "end_distance_m": 504.0,
   "midpoint_distance_m": 454.0,
   "start_elevation_m": 867.2109993635793,
   "end_elevation_m": 868.5574973446828,
   "start_xy": [
    2759491.2391811893,
    1203854.770341992
   ],
   "end_xy": [
    2759397.735461705,
    1203820.0775299016
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.53645952612351,
   "start_distance_m": 319.0,
   "end_distance_m": 321.0,
   "midpoint_distance_m": 320.0,
   "start_elevation_m": 848.2332428516993,
   "end_elevation_m": 849.1639720422218,
   "start_xy": [
    2759573.061393499,
    1203872.5896674502
   ],
   "end_xy": [
    2759571.0889271297,
    1203872.3018814065
   ]
  },
  "max_3m": {
   "gradient_pct": 44.8498306493093,
   "start_distance_m": 318.0,
   "end_distance_m": 321.0,
   "midpoint_distance_m": 319.5,
   "start_elevation_m": 847.8184771227425,
   "end_elevation_m": 849.1639720422218,
   "start_xy": [
    2759573.915388879,
    1203873.1099480393
   ],
   "end_xy": [
    2759571.0889271297,
    1203872.3018814065
   ]
  }
 },
 "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": 0.002,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    18.0,
    23.0
   ]
  ],
  "review": [
   "max10_over_40"
  ],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ],
  "lateral_stability": {
   "offsets_m": [
    -1.0,
    -0.5,
    0.0,
    0.5,
    1.0
   ],
   "windows": [
    {
     "window_m": 25,
     "min_pct": 33.97,
     "max_pct": 38.96
    },
    {
     "window_m": 10,
     "min_pct": 39.71,
     "max_pct": 46.96
    },
    {
     "window_m": 5,
     "min_pct": 44.77,
     "max_pct": 65.05
    }
   ]
  }
 },
 "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_2023_2758-1203_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2758-1204_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2759-1203_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2759-1204_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:33:07+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": [
   "2758-1203",
   "2758-1204",
   "2759-1203",
   "2759-1204"
  ],
  "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": "Landquart",
  "county": "Graub\u00fcnden/Grischun/Grigioni",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}