{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.8579, 7.9302)",
 "slug": "discovered-lane-46-8579-7-9302",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 17.723447301250417,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1063.0,
   "end_distance_m": 1065.0,
   "start_elevation_m": 1393.0841551261183,
   "end_elevation_m": 1393.4386240721433,
   "min_gradient_pct": -6.021134648062798
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 17.808977987670005,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1395.0,
   "end_distance_m": 1398.0,
   "start_elevation_m": 1437.6769555706953,
   "end_elevation_m": 1438.2112249103254,
   "min_gradient_pct": -5.872848318631441
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 16.758051890828938,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1456.0,
   "end_distance_m": 1461.0,
   "start_elevation_m": 1446.1084105004109,
   "end_elevation_m": 1446.9463130949523,
   "min_gradient_pct": -5.6322712747169135
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 15.956105374095841,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1454.0,
   "end_distance_m": 1464.0,
   "start_elevation_m": 1445.7932711847595,
   "end_elevation_m": 1447.3888817221691,
   "min_gradient_pct": -5.2643025920679065
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 15.133041683217243,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1642.0,
   "end_distance_m": 1662.0,
   "start_elevation_m": 1469.216465559285,
   "end_elevation_m": 1472.2430738959285,
   "min_gradient_pct": -4.75607758176011
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.987143632986772,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1637.0,
   "end_distance_m": 1662.0,
   "start_elevation_m": 1468.4962879876819,
   "end_elevation_m": 1472.2430738959285,
   "min_gradient_pct": -4.287011270205767
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.650566863253061,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1708.0,
   "end_distance_m": 1758.0,
   "start_elevation_m": 1478.1290060029446,
   "end_elevation_m": 1485.4542894345711,
   "min_gradient_pct": -0.8617819352280094
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.9268288146327,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1337.0,
   "end_distance_m": 1437.0,
   "start_elevation_m": 1429.7329086644177,
   "end_elevation_m": 1443.6597374790504,
   "min_gradient_pct": 2.343373113721782
  }
 ],
 "shape": {
  "ascent_concentration": 0.329,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 554.0,
  "shape_class": "sustained"
 },
 "length_m": 2461.607531485284,
 "start_elevation_m": 1284.3638721435111,
 "end_elevation_m": 1531.4307707001835,
 "endpoint_gain_m": 247.0668985566724,
 "overall_gradient_pct": 10.036811124298001,
 "accumulated_ascent_m": 248.55830616141452,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 16.758051890828938,
   "start_distance_m": 1456.0,
   "end_distance_m": 1461.0,
   "midpoint_distance_m": 1458.5,
   "start_elevation_m": 1446.1084105004109,
   "end_elevation_m": 1446.9463130949523,
   "start_xy": [
    2637742.981520147,
    1189227.220189755
   ],
   "end_xy": [
    2637746.0180992126,
    1189223.3050876546
   ]
  },
  "max_10m": {
   "gradient_pct": 15.956105374095841,
   "start_distance_m": 1454.0,
   "end_distance_m": 1464.0,
   "midpoint_distance_m": 1459.0,
   "start_elevation_m": 1445.7932711847595,
   "end_elevation_m": 1447.3888817221691,
   "start_xy": [
    2637741.543653193,
    1189228.610347524
   ],
   "end_xy": [
    2637747.4804073614,
    1189220.691671124
   ]
  },
  "max_20m": {
   "gradient_pct": 15.133041683217243,
   "start_distance_m": 1642.0,
   "end_distance_m": 1662.0,
   "midpoint_distance_m": 1652.0,
   "start_elevation_m": 1469.216465559285,
   "end_elevation_m": 1472.2430738959285,
   "start_xy": [
    2637832.0570244426,
    1189079.33010444
   ],
   "end_xy": [
    2637842.47353439,
    1189062.3851487064
   ]
  },
  "max_25m": {
   "gradient_pct": 14.987143632986772,
   "start_distance_m": 1637.0,
   "end_distance_m": 1662.0,
   "midpoint_distance_m": 1649.5,
   "start_elevation_m": 1468.4962879876819,
   "end_elevation_m": 1472.2430738959285,
   "start_xy": [
    2637828.3595608897,
    1189082.682251332
   ],
   "end_xy": [
    2637842.47353439,
    1189062.3851487064
   ]
  },
  "max_50m": {
   "gradient_pct": 14.650566863253061,
   "start_distance_m": 1708.0,
   "end_distance_m": 1758.0,
   "midpoint_distance_m": 1733.0,
   "start_elevation_m": 1478.1290060029446,
   "end_elevation_m": 1485.4542894345711,
   "start_xy": [
    2637866.537203406,
    1189023.2501005675
   ],
   "end_xy": [
    2637882.3425655463,
    1188976.5573810607
   ]
  },
  "max_100m": {
   "gradient_pct": 13.9268288146327,
   "start_distance_m": 1337.0,
   "end_distance_m": 1437.0,
   "midpoint_distance_m": 1387.0,
   "start_elevation_m": 1429.7329086644177,
   "end_elevation_m": 1443.6597374790504,
   "start_xy": [
    2637704.44357973,
    1189337.1155239157
   ],
   "end_xy": [
    2637730.3943182263,
    1189241.1772038387
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.6322712747169135,
   "start_distance_m": 1853.0,
   "end_distance_m": 1858.0,
   "midpoint_distance_m": 1855.5,
   "start_elevation_m": 1496.205178935546,
   "end_elevation_m": 1495.9235653718101,
   "start_xy": [
    2637895.9972147653,
    1188890.7007951215
   ],
   "end_xy": [
    2637900.843779111,
    1188889.4716525562
   ]
  },
  "min_10m": {
   "gradient_pct": -5.2643025920679065,
   "start_distance_m": 1853.0,
   "end_distance_m": 1863.0,
   "midpoint_distance_m": 1858.0,
   "start_elevation_m": 1496.205178935546,
   "end_elevation_m": 1495.6787486763392,
   "start_xy": [
    2637895.9972147653,
    1188890.7007951215
   ],
   "end_xy": [
    2637905.6930923755,
    1188888.2533911485
   ]
  },
  "min_20m": {
   "gradient_pct": -4.75607758176011,
   "start_distance_m": 1849.0,
   "end_distance_m": 1869.0,
   "midpoint_distance_m": 1859.0,
   "start_elevation_m": 1496.3808388219627,
   "end_elevation_m": 1495.4296233056107,
   "start_xy": [
    2637892.120546734,
    1188891.686188552
   ],
   "end_xy": [
    2637911.5122682936,
    1188886.7914774595
   ]
  },
  "min_25m": {
   "gradient_pct": -4.287011270205767,
   "start_distance_m": 1848.0,
   "end_distance_m": 1873.0,
   "midpoint_distance_m": 1860.5,
   "start_elevation_m": 1496.400354292058,
   "end_elevation_m": 1495.3286014745065,
   "start_xy": [
    2637891.2206015526,
    1188892.1221916147
   ],
   "end_xy": [
    2637915.391718906,
    1188885.8168683336
   ]
  },
  "min_50m": {
   "gradient_pct": -0.8617819352280094,
   "start_distance_m": 1843.0,
   "end_distance_m": 1893.0,
   "midpoint_distance_m": 1868.0,
   "start_elevation_m": 1496.272671780925,
   "end_elevation_m": 1495.841780813311,
   "start_xy": [
    2637887.02798286,
    1188894.7668244485
   ],
   "end_xy": [
    2637926.9941736353,
    1188870.342006927
   ]
  },
  "min_100m": {
   "gradient_pct": 2.343373113721782,
   "start_distance_m": 2183.0,
   "end_distance_m": 2283.0,
   "midpoint_distance_m": 2233.0,
   "start_elevation_m": 1522.7834356895903,
   "end_elevation_m": 1525.126808803312,
   "start_xy": [
    2638044.9515279494,
    1188612.240599298
   ],
   "end_xy": [
    2638103.612104764,
    1188532.6318359694
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 17.723447301250417,
   "start_distance_m": 1063.0,
   "end_distance_m": 1065.0,
   "midpoint_distance_m": 1064.0,
   "start_elevation_m": 1393.0841551261183,
   "end_elevation_m": 1393.4386240721433,
   "start_xy": [
    2637617.589301023,
    1189567.4697570438
   ],
   "end_xy": [
    2637618.049594212,
    1189565.5234451005
   ]
  },
  "max_3m": {
   "gradient_pct": 17.808977987670005,
   "start_distance_m": 1395.0,
   "end_distance_m": 1398.0,
   "midpoint_distance_m": 1396.5,
   "start_elevation_m": 1437.6769555706953,
   "end_elevation_m": 1438.2112249103254,
   "start_xy": [
    2637715.9271830292,
    1189280.5792943074
   ],
   "end_xy": [
    2637716.7855296014,
    1189277.707931932
   ]
  }
 },
 "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_2637-1188_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2637-1189_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2638-1188_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2638-1189_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:54:43+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": [
   "2637-1188",
   "2637-1189",
   "2638-1188",
   "2638-1189"
  ],
  "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": "Escholzmatt-Marbach",
  "county": "Luzern",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}