{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.9120, 9.1485)",
 "slug": "discovered-lane-46-9120-9-1485",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.217304482202962,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1035.0,
   "end_distance_m": 1037.0,
   "start_elevation_m": 1229.4464929515698,
   "end_elevation_m": 1229.9508390412138,
   "min_gradient_pct": -5.878268804576692
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.986429044823428,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1043.0,
   "end_distance_m": 1046.0,
   "start_elevation_m": 1231.3846555656382,
   "end_elevation_m": 1232.134248436983,
   "min_gradient_pct": -5.5065417698263746
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.528043100731338,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1043.0,
   "end_distance_m": 1048.0,
   "start_elevation_m": 1231.3846555656382,
   "end_elevation_m": 1232.6110577206748,
   "min_gradient_pct": -4.582128278320852
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.41403934698883,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1036.0,
   "end_distance_m": 1046.0,
   "start_elevation_m": 1229.692844502284,
   "end_elevation_m": 1232.134248436983,
   "min_gradient_pct": -2.686855621275299
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.891253916998494,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1032.0,
   "end_distance_m": 1052.0,
   "start_elevation_m": 1228.750425023239,
   "end_elevation_m": 1233.5286758066386,
   "min_gradient_pct": 2.5011731287179373
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.568519263853887,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1031.0,
   "end_distance_m": 1056.0,
   "start_elevation_m": 1228.526649475584,
   "end_elevation_m": 1234.4187792915475,
   "min_gradient_pct": 2.768914685147138
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.1678652528808,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1026.0,
   "end_distance_m": 1076.0,
   "start_elevation_m": 1227.4360542770146,
   "end_elevation_m": 1238.519986903455,
   "min_gradient_pct": 3.1908137879454443
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.39403403383494,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 982.0,
   "end_distance_m": 1082.0,
   "start_elevation_m": 1218.2144387437897,
   "end_elevation_m": 1239.6084727776247,
   "min_gradient_pct": 3.264108434099853
  }
 ],
 "shape": {
  "ascent_concentration": 0.376,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 234.0,
  "shape_class": "sustained"
 },
 "length_m": 1203.0400106902782,
 "start_elevation_m": 1120.5105139770367,
 "end_elevation_m": 1262.8449393242145,
 "endpoint_gain_m": 142.33442534717778,
 "overall_gradient_pct": 11.83122955865029,
 "accumulated_ascent_m": 142.79447902513402,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.528043100731338,
   "start_distance_m": 1043.0,
   "end_distance_m": 1048.0,
   "midpoint_distance_m": 1045.5,
   "start_elevation_m": 1231.3846555656382,
   "end_elevation_m": 1232.6110577206748,
   "start_xy": [
    2730070.4788690335,
    1197021.7030221776
   ],
   "end_xy": [
    2730065.4936888083,
    1197022.0728509293
   ]
  },
  "max_10m": {
   "gradient_pct": 24.41403934698883,
   "start_distance_m": 1036.0,
   "end_distance_m": 1046.0,
   "midpoint_distance_m": 1041.0,
   "start_elevation_m": 1229.692844502284,
   "end_elevation_m": 1232.134248436983,
   "start_xy": [
    2730077.3966279435,
    1197020.6347095554
   ],
   "end_xy": [
    2730067.489460306,
    1197021.9428658118
   ]
  },
  "max_20m": {
   "gradient_pct": 23.891253916998494,
   "start_distance_m": 1032.0,
   "end_distance_m": 1052.0,
   "midpoint_distance_m": 1042.0,
   "start_elevation_m": 1228.750425023239,
   "end_elevation_m": 1233.5286758066386,
   "start_xy": [
    2730081.331976812,
    1197019.9184920467
   ],
   "end_xy": [
    2730061.5020856815,
    1197022.331890211
   ]
  },
  "max_25m": {
   "gradient_pct": 23.568519263853887,
   "start_distance_m": 1031.0,
   "end_distance_m": 1056.0,
   "midpoint_distance_m": 1043.5,
   "start_elevation_m": 1228.526649475584,
   "end_elevation_m": 1234.4187792915475,
   "start_xy": [
    2730082.3157959064,
    1197019.739327777
   ],
   "end_xy": [
    2730057.5045037633,
    1197022.4431834586
   ]
  },
  "max_50m": {
   "gradient_pct": 22.1678652528808,
   "start_distance_m": 1026.0,
   "end_distance_m": 1076.0,
   "midpoint_distance_m": 1051.0,
   "start_elevation_m": 1227.4360542770146,
   "end_elevation_m": 1238.519986903455,
   "start_xy": [
    2730087.1930855205,
    1197018.651664475
   ],
   "end_xy": [
    2730037.7865731483,
    1197021.5990335322
   ]
  },
  "max_100m": {
   "gradient_pct": 21.39403403383494,
   "start_distance_m": 982.0,
   "end_distance_m": 1082.0,
   "midpoint_distance_m": 1032.0,
   "start_elevation_m": 1218.2144387437897,
   "end_elevation_m": 1239.6084727776247,
   "start_xy": [
    2730130.0143700372,
    1197024.330361489
   ],
   "end_xy": [
    2730037.073199554,
    1197026.9048300555
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.582128278320852,
   "start_distance_m": 7.0,
   "end_distance_m": 12.0,
   "midpoint_distance_m": 9.5,
   "start_elevation_m": 1120.663328495933,
   "end_elevation_m": 1120.434222082017,
   "start_xy": [
    2730141.242595671,
    1196735.5409062786
   ],
   "end_xy": [
    2730136.372161277,
    1196734.4100374214
   ]
  },
  "min_10m": {
   "gradient_pct": -2.686855621275299,
   "start_distance_m": 4.0,
   "end_distance_m": 14.0,
   "midpoint_distance_m": 9.0,
   "start_elevation_m": 1120.6731065731938,
   "end_elevation_m": 1120.4044210110662,
   "start_xy": [
    2730144.164737447,
    1196736.2199390791
   ],
   "end_xy": [
    2730134.4118240406,
    1196734.0149672425
   ]
  },
  "min_20m": {
   "gradient_pct": 2.5011731287179373,
   "start_distance_m": 1.0,
   "end_distance_m": 21.0,
   "midpoint_distance_m": 11.0,
   "start_elevation_m": 1120.5785434107956,
   "end_elevation_m": 1121.0787780365392,
   "start_xy": [
    2730147.086879229,
    1196736.8989718533
   ],
   "end_xy": [
    2730127.650155353,
    1196732.3044729012
   ]
  },
  "min_25m": {
   "gradient_pct": 2.768914685147138,
   "start_distance_m": 156.0,
   "end_distance_m": 181.0,
   "midpoint_distance_m": 168.5,
   "start_elevation_m": 1127.163823128287,
   "end_elevation_m": 1127.8560517995738,
   "start_xy": [
    2730184.7734020823,
    1196793.5595760043
   ],
   "end_xy": [
    2730203.3343086015,
    1196810.3074915942
   ]
  },
  "min_50m": {
   "gradient_pct": 3.1908137879454443,
   "start_distance_m": 129.0,
   "end_distance_m": 179.0,
   "midpoint_distance_m": 154.0,
   "start_elevation_m": 1126.2099898453162,
   "end_elevation_m": 1127.8053967392889,
   "start_xy": [
    2730164.353492339,
    1196775.9418644328
   ],
   "end_xy": [
    2730201.8494617552,
    1196808.967629887
   ]
  },
  "min_100m": {
   "gradient_pct": 3.264108434099853,
   "start_distance_m": 81.0,
   "end_distance_m": 181.0,
   "midpoint_distance_m": 131.0,
   "start_elevation_m": 1124.591943365474,
   "end_elevation_m": 1127.8560517995738,
   "start_xy": [
    2730127.504525261,
    1196745.5718513883
   ],
   "end_xy": [
    2730203.3343086015,
    1196810.3074915942
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.217304482202962,
   "start_distance_m": 1035.0,
   "end_distance_m": 1037.0,
   "midpoint_distance_m": 1036.0,
   "start_elevation_m": 1229.4464929515698,
   "end_elevation_m": 1229.9508390412138,
   "start_xy": [
    2730078.380597909,
    1197020.4564144216
   ],
   "end_xy": [
    2730076.410700894,
    1197020.8016955112
   ]
  },
  "max_3m": {
   "gradient_pct": 24.986429044823428,
   "start_distance_m": 1043.0,
   "end_distance_m": 1046.0,
   "midpoint_distance_m": 1044.5,
   "start_elevation_m": 1231.3846555656382,
   "end_elevation_m": 1232.134248436983,
   "start_xy": [
    2730070.4788690335,
    1197021.7030221776
   ],
   "end_xy": [
    2730067.489460306,
    1197021.9428658118
   ]
  }
 },
 "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_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_2730-1196_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2019_2730-1197_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-15T21:44:18+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10.osm.pbf",
  "osm_snapshot": "2026-09-09T20:21:20Z",
  "run_id": "retro-260915-dogleg-all",
  "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": [
   "2730-1196",
   "2730-1197"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Glarus S\u00fcd",
  "county": "Glarus",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}