{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.2144, 9.2396)",
 "slug": "discovered-lane-47-2144-9-2396",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.227504137071264,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 3289.0,
   "end_distance_m": 3291.0,
   "start_elevation_m": 1521.8047025773785,
   "end_elevation_m": 1522.26925266012,
   "min_gradient_pct": -37.21542397993289,
   "suppressed_max_gradient_pct": 55.85712417965851,
   "suppressed_location_m": [
    870.0,
    872.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 20.01780804756284,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 3289.0,
   "end_distance_m": 3292.0,
   "start_elevation_m": 1521.8047025773785,
   "end_elevation_m": 1522.4052368188054,
   "min_gradient_pct": -20.172906026906883,
   "suppressed_max_gradient_pct": 40.53694682396175,
   "suppressed_location_m": [
    870.0,
    873.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 18.02392096632957,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2411.0,
   "end_distance_m": 2416.0,
   "start_elevation_m": 1452.017748619769,
   "end_elevation_m": 1452.9189446680855,
   "min_gradient_pct": -7.20573417905598,
   "suppressed_max_gradient_pct": 28.61386832878452,
   "suppressed_location_m": [
    870.0,
    875.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 17.08815461303402,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2407.0,
   "end_distance_m": 2417.0,
   "start_elevation_m": 1451.3727906694753,
   "end_elevation_m": 1453.0816061307787,
   "min_gradient_pct": -6.663502005746977,
   "suppressed_max_gradient_pct": 19.797963023900138,
   "suppressed_location_m": [
    870.0,
    880.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 16.856785959847684,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2399.0,
   "end_distance_m": 2419.0,
   "start_elevation_m": 1450.026596127829,
   "end_elevation_m": 1453.3979533197985,
   "min_gradient_pct": -6.3673242513220885
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 16.75671486338615,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2391.0,
   "end_distance_m": 2416.0,
   "start_elevation_m": 1448.729765952239,
   "end_elevation_m": 1452.9189446680855,
   "min_gradient_pct": -6.165622755557706
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.859128149568278,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2375.0,
   "end_distance_m": 2425.0,
   "start_elevation_m": 1446.3028211864548,
   "end_elevation_m": 1454.232385261239,
   "min_gradient_pct": -5.216831950890992
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.01722814589948,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2378.0,
   "end_distance_m": 2478.0,
   "start_elevation_m": 1446.6932863502311,
   "end_elevation_m": 1461.7105144961306,
   "min_gradient_pct": -3.23847989499518
  }
 ],
 "shape": {
  "ascent_concentration": 0.288,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 492.0,
  "shape_class": "sustained"
 },
 "length_m": 3435.1748635284757,
 "start_elevation_m": 1179.519805810557,
 "end_elevation_m": 1541.061142605477,
 "endpoint_gain_m": 361.54133679491997,
 "overall_gradient_pct": 10.524685093426628,
 "accumulated_ascent_m": 366.3101045954577,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 18.02392096632957,
   "start_distance_m": 2411.0,
   "end_distance_m": 2416.0,
   "midpoint_distance_m": 2413.5,
   "start_elevation_m": 1452.017748619769,
   "end_elevation_m": 1452.9189446680855,
   "start_xy": [
    2737075.3081136816,
    1231407.7293394757
   ],
   "end_xy": [
    2737078.351513798,
    1231411.696418468
   ]
  },
  "max_10m": {
   "gradient_pct": 17.08815461303402,
   "start_distance_m": 2407.0,
   "end_distance_m": 2417.0,
   "midpoint_distance_m": 2412.0,
   "start_elevation_m": 1451.3727906694753,
   "end_elevation_m": 1453.0816061307787,
   "start_xy": [
    2737072.8165283776,
    1231404.6031074035
   ],
   "end_xy": [
    2737078.960193821,
    1231412.4898342662
   ]
  },
  "max_20m": {
   "gradient_pct": 16.856785959847684,
   "start_distance_m": 2399.0,
   "end_distance_m": 2419.0,
   "midpoint_distance_m": 2409.0,
   "start_elevation_m": 1450.026596127829,
   "end_elevation_m": 1453.3979533197985,
   "start_xy": [
    2737067.4460050766,
    1231398.6737331129
   ],
   "end_xy": [
    2737080.177553868,
    1231414.0766658632
   ]
  },
  "max_25m": {
   "gradient_pct": 16.75671486338615,
   "start_distance_m": 2391.0,
   "end_distance_m": 2416.0,
   "midpoint_distance_m": 2403.5,
   "start_elevation_m": 1448.729765952239,
   "end_elevation_m": 1452.9189446680855,
   "start_xy": [
    2737061.4423989286,
    1231393.4262473441
   ],
   "end_xy": [
    2737078.351513798,
    1231411.696418468
   ]
  },
  "max_50m": {
   "gradient_pct": 15.859128149568278,
   "start_distance_m": 2375.0,
   "end_distance_m": 2425.0,
   "midpoint_distance_m": 2400.0,
   "start_elevation_m": 1446.3028211864548,
   "end_elevation_m": 1454.232385261239,
   "start_xy": [
    2737049.724816001,
    1231382.589647736
   ],
   "end_xy": [
    2737083.829634008,
    1231418.8371606537
   ]
  },
  "max_100m": {
   "gradient_pct": 15.01722814589948,
   "start_distance_m": 2378.0,
   "end_distance_m": 2478.0,
   "midpoint_distance_m": 2428.0,
   "start_elevation_m": 1446.6932863502311,
   "end_elevation_m": 1461.7105144961306,
   "start_xy": [
    2737051.8042752356,
    1231384.7520189558
   ],
   "end_xy": [
    2737097.0568640274,
    1231469.1979841033
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.20573417905598,
   "start_distance_m": 865.0,
   "end_distance_m": 870.0,
   "midpoint_distance_m": 867.5,
   "start_elevation_m": 1279.3990057543194,
   "end_elevation_m": 1279.0387190453666,
   "start_xy": [
    2736420.4531868137,
    1230849.7433086203
   ],
   "end_xy": [
    2736422.241391446,
    1230854.3897703213
   ]
  },
  "min_10m": {
   "gradient_pct": -6.663502005746977,
   "start_distance_m": 2860.0,
   "end_distance_m": 2870.0,
   "midpoint_distance_m": 2865.0,
   "start_elevation_m": 1500.4123739849108,
   "end_elevation_m": 1499.746023784336,
   "start_xy": [
    2737031.7182487748,
    1231756.4427635754
   ],
   "end_xy": [
    2737033.6320152353,
    1231766.257930305
   ]
  },
  "min_20m": {
   "gradient_pct": -6.3673242513220885,
   "start_distance_m": 2854.0,
   "end_distance_m": 2874.0,
   "midpoint_distance_m": 2864.0,
   "start_elevation_m": 1500.7657155457102,
   "end_elevation_m": 1499.4922506954458,
   "start_xy": [
    2737030.569988898,
    1231750.5536635374
   ],
   "end_xy": [
    2737034.39752182,
    1231770.183996997
   ]
  },
  "min_25m": {
   "gradient_pct": -6.165622755557706,
   "start_distance_m": 2850.0,
   "end_distance_m": 2875.0,
   "midpoint_distance_m": 2862.5,
   "start_elevation_m": 1500.9726574795204,
   "end_elevation_m": 1499.431251790631,
   "start_xy": [
    2737029.804482314,
    1231746.6275968456
   ],
   "end_xy": [
    2737034.588898466,
    1231771.16551367
   ]
  },
  "min_50m": {
   "gradient_pct": -5.216831950890992,
   "start_distance_m": 2838.0,
   "end_distance_m": 2888.0,
   "midpoint_distance_m": 2863.0,
   "start_elevation_m": 1501.4675015405046,
   "end_elevation_m": 1498.859085565059,
   "start_xy": [
    2737027.7181223556,
    1231734.8119622453
   ],
   "end_xy": [
    2737037.076794865,
    1231783.9252304188
   ]
  },
  "min_100m": {
   "gradient_pct": -3.23847989499518,
   "start_distance_m": 2823.0,
   "end_distance_m": 2923.0,
   "midpoint_distance_m": 2873.0,
   "start_elevation_m": 1501.6182433958998,
   "end_elevation_m": 1498.3797635009046,
   "start_xy": [
    2737025.3285549115,
    1231720.0035198075
   ],
   "end_xy": [
    2737035.9182873513,
    1231818.3378579668
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.227504137071264,
   "start_distance_m": 3289.0,
   "end_distance_m": 3291.0,
   "midpoint_distance_m": 3290.0,
   "start_elevation_m": 1521.8047025773785,
   "end_elevation_m": 1522.26925266012,
   "start_xy": [
    2736753.479429392,
    1231916.5294570052
   ],
   "end_xy": [
    2736754.0231217053,
    1231918.4541384513
   ]
  },
  "max_3m": {
   "gradient_pct": 20.01780804756284,
   "start_distance_m": 3289.0,
   "end_distance_m": 3292.0,
   "midpoint_distance_m": 3290.5,
   "start_elevation_m": 1521.8047025773785,
   "end_elevation_m": 1522.4052368188054,
   "start_xy": [
    2736753.479429392,
    1231916.5294570052
   ],
   "end_xy": [
    2736754.294967862,
    1231919.4164791743
   ]
  }
 },
 "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": 0.004,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    867.0,
    873.0
   ],
   [
    1441.0,
    1446.0
   ]
  ],
  "review": [],
  "extent": [
   "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_2020_2736-1230_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2736-1231_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2736-1232_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2737-1231_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2019_2737-1232_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:33:01+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": [
   "2736-1230",
   "2736-1231",
   "2736-1232",
   "2737-1231",
   "2737-1232"
  ],
  "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": "Nesslau",
  "county": "St. Gallen",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}