{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (45.9877, 8.8418)",
 "slug": "discovered-lane-45-9877-8-8418",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.574651959172343,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 378.0,
   "end_distance_m": 380.0,
   "start_elevation_m": 341.8068904256065,
   "end_elevation_m": 342.25838346479,
   "min_gradient_pct": 2.5159116750160138
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.16843707765861,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 377.0,
   "end_distance_m": 380.0,
   "start_elevation_m": 341.5933303524602,
   "end_elevation_m": 342.25838346479,
   "min_gradient_pct": 3.356708820270645
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.13547648298777,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 385.0,
   "end_distance_m": 390.0,
   "start_elevation_m": 343.2543287958152,
   "end_elevation_m": 344.3111026199646,
   "min_gradient_pct": 3.6332048300801034
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.00250264249098,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 378.0,
   "end_distance_m": 388.0,
   "start_elevation_m": 341.8068904256065,
   "end_elevation_m": 343.9071406898556,
   "min_gradient_pct": 4.44548675113424
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.734986900335173,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 376.0,
   "end_distance_m": 396.0,
   "start_elevation_m": 341.38853548005216,
   "end_elevation_m": 345.5355328601192,
   "min_gradient_pct": 5.997212848731692
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.55149405549537,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 376.0,
   "end_distance_m": 401.0,
   "start_elevation_m": 341.38853548005216,
   "end_elevation_m": 346.526408993926,
   "min_gradient_pct": 6.896922200276322
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.769751547910687,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 352.0,
   "end_distance_m": 402.0,
   "start_elevation_m": 336.8262445532226,
   "end_elevation_m": 346.7111203271779,
   "min_gradient_pct": 9.028497219892074
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.26609950047606,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 296.0,
   "end_distance_m": 396.0,
   "start_elevation_m": 326.26943335964313,
   "end_elevation_m": 345.5355328601192,
   "min_gradient_pct": 10.540001818875169
  }
 ],
 "shape": {
  "ascent_concentration": 0.346,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 243.0,
  "shape_class": "sustained"
 },
 "length_m": 457.39616200314885,
 "start_elevation_m": 289.23114571924305,
 "end_elevation_m": 352.69623482665816,
 "endpoint_gain_m": 63.46508910741511,
 "overall_gradient_pct": 13.875299877784764,
 "accumulated_ascent_m": 63.46508910741511,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.13547648298777,
   "start_distance_m": 385.0,
   "end_distance_m": 390.0,
   "midpoint_distance_m": 387.5,
   "start_elevation_m": 343.2543287958152,
   "end_elevation_m": 344.3111026199646,
   "start_xy": [
    2708683.8055723547,
    1093932.886635882
   ],
   "end_xy": [
    2708682.0553753944,
    1093937.5531122417
   ]
  },
  "max_10m": {
   "gradient_pct": 21.00250264249098,
   "start_distance_m": 378.0,
   "end_distance_m": 388.0,
   "midpoint_distance_m": 383.0,
   "start_elevation_m": 341.8068904256065,
   "end_elevation_m": 343.9071406898556,
   "start_xy": [
    2708686.859812237,
    1093926.5880948808
   ],
   "end_xy": [
    2708682.6258876454,
    1093935.6362095913
   ]
  },
  "max_20m": {
   "gradient_pct": 20.734986900335173,
   "start_distance_m": 376.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 386.0,
   "start_elevation_m": 341.38853548005216,
   "end_elevation_m": 345.5355328601192,
   "start_xy": [
    2708687.7458995394,
    1093924.7975298017
   ],
   "end_xy": [
    2708680.3438386424,
    1093943.3038201935
   ]
  },
  "max_25m": {
   "gradient_pct": 20.55149405549537,
   "start_distance_m": 376.0,
   "end_distance_m": 401.0,
   "midpoint_distance_m": 388.5,
   "start_elevation_m": 341.38853548005216,
   "end_elevation_m": 346.526408993926,
   "start_xy": [
    2708687.7458995394,
    1093924.7975298017
   ],
   "end_xy": [
    2708678.9175580153,
    1093948.0960768198
   ]
  },
  "max_50m": {
   "gradient_pct": 19.769751547910687,
   "start_distance_m": 352.0,
   "end_distance_m": 402.0,
   "midpoint_distance_m": 377.0,
   "start_elevation_m": 336.8262445532226,
   "end_elevation_m": 346.7111203271779,
   "start_xy": [
    2708703.750153273,
    1093906.9127915471
   ],
   "end_xy": [
    2708678.63230189,
    1093949.0545281451
   ]
  },
  "max_100m": {
   "gradient_pct": 19.26609950047606,
   "start_distance_m": 296.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 346.0,
   "start_elevation_m": 326.26943335964313,
   "end_elevation_m": 345.5355328601192,
   "start_xy": [
    2708712.6290295348,
    1093867.7547132163
   ],
   "end_xy": [
    2708680.3438386424,
    1093943.3038201935
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 3.6332048300801034,
   "start_distance_m": 2.0,
   "end_distance_m": 7.0,
   "midpoint_distance_m": 4.5,
   "start_elevation_m": 289.33078561106413,
   "end_elevation_m": 289.51244585256813,
   "start_xy": [
    2708514.115021135,
    1093928.1416915567
   ],
   "end_xy": [
    2708516.417573973,
    1093923.7034204486
   ]
  },
  "min_10m": {
   "gradient_pct": 4.44548675113424,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 289.23114571924305,
   "end_elevation_m": 289.67569439435647,
   "start_xy": [
    2708513.194,
    1093929.917
   ],
   "end_xy": [
    2708517.7991056754,
    1093921.0404577837
   ]
  },
  "min_20m": {
   "gradient_pct": 5.997212848731692,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 289.23114571924305,
   "end_elevation_m": 290.4305882889894,
   "start_xy": [
    2708513.194,
    1093929.917
   ],
   "end_xy": [
    2708522.404211351,
    1093912.1639155673
   ]
  },
  "min_25m": {
   "gradient_pct": 6.896922200276322,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 289.23114571924305,
   "end_elevation_m": 290.9553762693121,
   "start_xy": [
    2708513.194,
    1093929.917
   ],
   "end_xy": [
    2708524.706764189,
    1093907.7256444592
   ]
  },
  "min_50m": {
   "gradient_pct": 9.028497219892074,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 289.23114571924305,
   "end_elevation_m": 293.7453943291891,
   "start_xy": [
    2708513.194,
    1093929.917
   ],
   "end_xy": [
    2708535.9248852297,
    1093885.3894268735
   ]
  },
  "min_100m": {
   "gradient_pct": 10.540001818875169,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 289.23114571924305,
   "end_elevation_m": 299.7711475381182,
   "start_xy": [
    2708513.194,
    1093929.917
   ],
   "end_xy": [
    2708557.0101135615,
    1093840.0527623934
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.574651959172343,
   "start_distance_m": 378.0,
   "end_distance_m": 380.0,
   "midpoint_distance_m": 379.0,
   "start_elevation_m": 341.8068904256065,
   "end_elevation_m": 342.25838346479,
   "start_xy": [
    2708686.859812237,
    1093926.5880948808
   ],
   "end_xy": [
    2708685.9871722707,
    1093928.3876780241
   ]
  },
  "max_3m": {
   "gradient_pct": 22.16843707765861,
   "start_distance_m": 377.0,
   "end_distance_m": 380.0,
   "midpoint_distance_m": 378.5,
   "start_elevation_m": 341.5933303524602,
   "end_elevation_m": 342.25838346479,
   "start_xy": [
    2708687.29613222,
    1093925.6883033093
   ],
   "end_xy": [
    2708685.9871722707,
    1093928.3876780241
   ]
  }
 },
 "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",
   "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_2022_2708-1093_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2708-1094_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:26:49+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": [
   "2708-1093",
   "2708-1094"
  ],
  "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": "Tresa",
  "county": "Ticino",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}