{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.5919, 7.1468)",
 "slug": "discovered-lane-46-5919-7-1468",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 41.390624153723365,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 398.0,
   "end_distance_m": 400.0,
   "start_elevation_m": 1034.1242901172895,
   "end_elevation_m": 1034.952102600364,
   "min_gradient_pct": -20.436741632602207
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 31.45615796865968,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 397.0,
   "end_distance_m": 400.0,
   "start_elevation_m": 1034.0084178613042,
   "end_elevation_m": 1034.952102600364,
   "min_gradient_pct": -10.128804377874681
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.071149918726405,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 344.0,
   "end_distance_m": 349.0,
   "start_elevation_m": 1027.482509321292,
   "end_elevation_m": 1028.7360668172282,
   "min_gradient_pct": -1.1100148345940397
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.523448893296973,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3622.0,
   "end_distance_m": 3632.0,
   "start_elevation_m": 1437.546045970069,
   "end_elevation_m": 1439.6983908593986,
   "min_gradient_pct": 0.01607142796046901
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.007547780508958,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3619.0,
   "end_distance_m": 3639.0,
   "start_elevation_m": 1436.9454790511581,
   "end_elevation_m": 1440.74698860726,
   "min_gradient_pct": 0.9734743387963363
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.166110026304523,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3619.0,
   "end_distance_m": 3644.0,
   "start_elevation_m": 1436.9454790511581,
   "end_elevation_m": 1441.4870065577343,
   "min_gradient_pct": 1.2935146198419716
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.047113206262566,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3619.0,
   "end_distance_m": 3669.0,
   "start_elevation_m": 1436.9454790511581,
   "end_elevation_m": 1444.9690356542894,
   "min_gradient_pct": 2.947636810879658
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.59361855227462,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2988.0,
   "end_distance_m": 3088.0,
   "start_elevation_m": 1354.7177979473415,
   "end_elevation_m": 1370.3114164996161,
   "min_gradient_pct": 4.036692945919981
  }
 ],
 "shape": {
  "ascent_concentration": 0.266,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 462.0,
  "shape_class": "sustained"
 },
 "length_m": 3831.5808317632063,
 "start_elevation_m": 995.6006396751859,
 "end_elevation_m": 1462.5508683398436,
 "endpoint_gain_m": 466.95022866465774,
 "overall_gradient_pct": 12.186881842442506,
 "accumulated_ascent_m": 468.31255683472716,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.071149918726405,
   "start_distance_m": 344.0,
   "end_distance_m": 349.0,
   "midpoint_distance_m": 346.5,
   "start_elevation_m": 1027.482509321292,
   "end_elevation_m": 1028.7360668172282,
   "start_xy": [
    2578739.7090389486,
    1159972.1815133858
   ],
   "end_xy": [
    2578737.774596753,
    1159976.7856384292
   ]
  },
  "max_10m": {
   "gradient_pct": 21.523448893296973,
   "start_distance_m": 3622.0,
   "end_distance_m": 3632.0,
   "midpoint_distance_m": 3627.0,
   "start_elevation_m": 1437.546045970069,
   "end_elevation_m": 1439.6983908593986,
   "start_xy": [
    2577046.976015012,
    1159712.1829074838
   ],
   "end_xy": [
    2577042.520395135,
    1159721.0311083265
   ]
  },
  "max_20m": {
   "gradient_pct": 19.007547780508958,
   "start_distance_m": 3619.0,
   "end_distance_m": 3639.0,
   "midpoint_distance_m": 3629.0,
   "start_elevation_m": 1436.9454790511581,
   "end_elevation_m": 1440.74698860726,
   "start_xy": [
    2577047.745418353,
    1159709.283249142
   ],
   "end_xy": [
    2577038.3432214693,
    1159726.6465686385
   ]
  },
  "max_25m": {
   "gradient_pct": 18.166110026304523,
   "start_distance_m": 3619.0,
   "end_distance_m": 3644.0,
   "midpoint_distance_m": 3631.5,
   "start_elevation_m": 1436.9454790511581,
   "end_elevation_m": 1441.4870065577343,
   "start_xy": [
    2577047.745418353,
    1159709.283249142
   ],
   "end_xy": [
    2577035.493732393,
    1159730.7551464948
   ]
  },
  "max_50m": {
   "gradient_pct": 16.047113206262566,
   "start_distance_m": 3619.0,
   "end_distance_m": 3669.0,
   "midpoint_distance_m": 3644.0,
   "start_elevation_m": 1436.9454790511581,
   "end_elevation_m": 1444.9690356542894,
   "start_xy": [
    2577047.745418353,
    1159709.283249142
   ],
   "end_xy": [
    2577025.984879263,
    1159753.6346532549
   ]
  },
  "max_100m": {
   "gradient_pct": 15.59361855227462,
   "start_distance_m": 2988.0,
   "end_distance_m": 3088.0,
   "midpoint_distance_m": 3038.0,
   "start_elevation_m": 1354.7177979473415,
   "end_elevation_m": 1370.3114164996161,
   "start_xy": [
    2577295.6550509706,
    1159891.5278817627
   ],
   "end_xy": [
    2577279.9619919504,
    1159800.737540936
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.1100148345940397,
   "start_distance_m": 3497.0,
   "end_distance_m": 3502.0,
   "midpoint_distance_m": 3499.5,
   "start_elevation_m": 1422.9960353949555,
   "end_elevation_m": 1422.9405346532258,
   "start_xy": [
    2577102.147820178,
    1159709.9745818044
   ],
   "end_xy": [
    2577102.2255259664,
    1159704.9751856597
   ]
  },
  "min_10m": {
   "gradient_pct": 0.01607142796046901,
   "start_distance_m": 100.0,
   "end_distance_m": 110.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 1000.6476063207379,
   "end_elevation_m": 1000.6492134635339,
   "start_xy": [
    2578746.081241305,
    1159737.1354617837
   ],
   "end_xy": [
    2578744.472454132,
    1159741.3777028506
   ]
  },
  "min_20m": {
   "gradient_pct": 0.9734743387963363,
   "start_distance_m": 92.0,
   "end_distance_m": 112.0,
   "midpoint_distance_m": 102.0,
   "start_elevation_m": 1000.4980446683309,
   "end_elevation_m": 1000.6927395360901,
   "start_xy": [
    2578749.534614377,
    1159744.3517083444
   ],
   "end_xy": [
    2578744.3854322312,
    1159743.3758087507
   ]
  },
  "min_25m": {
   "gradient_pct": 1.2935146198419716,
   "start_distance_m": 89.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 101.5,
   "start_elevation_m": 1000.4153192335621,
   "end_elevation_m": 1000.7386978885226,
   "start_xy": [
    2578751.00757349,
    1159746.9625503023
   ],
   "end_xy": [
    2578744.2984103304,
    1159745.373914651
   ]
  },
  "min_50m": {
   "gradient_pct": 2.947636810879658,
   "start_distance_m": 68.0,
   "end_distance_m": 118.0,
   "midpoint_distance_m": 93.0,
   "start_elevation_m": 999.4802947155284,
   "end_elevation_m": 1000.9541131209683,
   "start_xy": [
    2578762.1837470066,
    1159764.7099270057
   ],
   "end_xy": [
    2578744.1243665284,
    1159749.3701264516
   ]
  },
  "min_100m": {
   "gradient_pct": 4.036692945919981,
   "start_distance_m": 14.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 64.0,
   "start_elevation_m": 996.7020049426026,
   "end_elevation_m": 1000.7386978885226,
   "start_xy": [
    2578784.4572967635,
    1159812.7338748116
   ],
   "end_xy": [
    2578744.2984103304,
    1159745.373914651
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 41.390624153723365,
   "start_distance_m": 398.0,
   "end_distance_m": 400.0,
   "midpoint_distance_m": 399.0,
   "start_elevation_m": 1034.1242901172895,
   "end_elevation_m": 1034.952102600364,
   "start_xy": [
    2578701.9523842162,
    1160007.099974522
   ],
   "end_xy": [
    2578700.0110894344,
    1160007.5809886272
   ]
  },
  "max_3m": {
   "gradient_pct": 31.45615796865968,
   "start_distance_m": 397.0,
   "end_distance_m": 400.0,
   "midpoint_distance_m": 398.5,
   "start_elevation_m": 1034.0084178613042,
   "end_elevation_m": 1034.952102600364,
   "start_xy": [
    2578702.923031607,
    1160006.8594674692
   ],
   "end_xy": [
    2578700.0110894344,
    1160007.5809886272
   ]
  }
 },
 "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": 0.001,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    3.0
   ]
  ],
  "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_2021_2576-1159_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2576-1160_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2577-1159_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2577-1160_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2578-1159_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2578-1160_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:06:34+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": [
   "2576-1159",
   "2576-1160",
   "2577-1159",
   "2577-1160",
   "2578-1159",
   "2578-1160"
  ],
  "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": "Bas-Intyamon",
  "county": "Fribourg/Freiburg",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}