{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.5986, 7.9899)",
 "slug": "discovered-lane-46-5986-7-9899",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.193480165300116,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 3618.0,
   "end_distance_m": 3620.0,
   "start_elevation_m": 1711.3445353672594,
   "end_elevation_m": 1712.2684049705654,
   "min_gradient_pct": -41.95725203232996,
   "suppressed_max_gradient_pct": 67.88998596608735,
   "suppressed_location_m": [
    3611.0,
    3613.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.99852044774919,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 3192.0,
   "end_distance_m": 3195.0,
   "start_elevation_m": 1659.8698694451468,
   "end_elevation_m": 1660.9798250585793,
   "min_gradient_pct": -37.36868972421993,
   "suppressed_max_gradient_pct": 62.2883030633678,
   "suppressed_location_m": [
    3610.0,
    3613.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.91593999059296,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 3600.0,
   "end_distance_m": 3605.0,
   "start_elevation_m": 1708.1638511199114,
   "end_elevation_m": 1709.609648119441,
   "min_gradient_pct": -21.19485806807006,
   "suppressed_max_gradient_pct": 40.433376288560794,
   "suppressed_location_m": [
    3610.0,
    3615.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.0593499631118,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 3248.0,
   "end_distance_m": 3258.0,
   "start_elevation_m": 1665.206450330305,
   "end_elevation_m": 1667.5123853266161,
   "min_gradient_pct": -8.607724943947233,
   "suppressed_max_gradient_pct": 31.495605707332288,
   "suppressed_location_m": [
    3301.0,
    3311.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.73578228882411,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 348.0,
   "end_distance_m": 368.0,
   "start_elevation_m": 1359.8541994680288,
   "end_elevation_m": 1364.0013559257936,
   "min_gradient_pct": -4.2667870991647305,
   "suppressed_max_gradient_pct": 25.355623214522893,
   "suppressed_location_m": [
    3302.0,
    3322.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.029009501445216,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 348.0,
   "end_distance_m": 373.0,
   "start_elevation_m": 1359.8541994680288,
   "end_elevation_m": 1364.8614518433901,
   "min_gradient_pct": -3.0713785862508303,
   "suppressed_max_gradient_pct": 23.12331530202937,
   "suppressed_location_m": [
    3297.0,
    3322.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.084198276304505,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 273.0,
   "end_distance_m": 323.0,
   "start_elevation_m": 1347.3164722899407,
   "end_elevation_m": 1356.358571428093,
   "min_gradient_pct": 2.2008255757887127
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.561324320301992,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 274.0,
   "end_distance_m": 374.0,
   "start_elevation_m": 1347.480677118041,
   "end_elevation_m": 1365.042001438343,
   "min_gradient_pct": 3.691875374315032
  }
 ],
 "shape": {
  "ascent_concentration": 0.286,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 229.0,
  "shape_class": "sustained"
 },
 "length_m": 4553.616535615973,
 "start_elevation_m": 1314.1910439697133,
 "end_elevation_m": 1808.7164030009649,
 "endpoint_gain_m": 494.5253590312516,
 "overall_gradient_pct": 10.860057169138784,
 "accumulated_ascent_m": 513.3107442650078,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.91593999059296,
   "start_distance_m": 3600.0,
   "end_distance_m": 3605.0,
   "midpoint_distance_m": 3602.5,
   "start_elevation_m": 1708.1638511199114,
   "end_elevation_m": 1709.609648119441,
   "start_xy": [
    2641989.9521710863,
    1160819.598764284
   ],
   "end_xy": [
    2641986.0658107796,
    1160816.4529420596
   ]
  },
  "max_10m": {
   "gradient_pct": 23.0593499631118,
   "start_distance_m": 3248.0,
   "end_distance_m": 3258.0,
   "midpoint_distance_m": 3253.0,
   "start_elevation_m": 1665.206450330305,
   "end_elevation_m": 1667.5123853266161,
   "start_xy": [
    2642183.7911170786,
    1161063.7611366627
   ],
   "end_xy": [
    2642175.3343050447,
    1161069.098017877
   ]
  },
  "max_20m": {
   "gradient_pct": 20.73578228882411,
   "start_distance_m": 348.0,
   "end_distance_m": 368.0,
   "midpoint_distance_m": 358.0,
   "start_elevation_m": 1359.8541994680288,
   "end_elevation_m": 1364.0013559257936,
   "start_xy": [
    2643697.867677611,
    1162036.9293470136
   ],
   "end_xy": [
    2643689.83485893,
    1162018.790074213
   ]
  },
  "max_25m": {
   "gradient_pct": 20.029009501445216,
   "start_distance_m": 348.0,
   "end_distance_m": 373.0,
   "midpoint_distance_m": 360.5,
   "start_elevation_m": 1359.8541994680288,
   "end_elevation_m": 1364.8614518433901,
   "start_xy": [
    2643697.867677611,
    1162036.9293470136
   ],
   "end_xy": [
    2643688.315941439,
    1162014.0263692427
   ]
  },
  "max_50m": {
   "gradient_pct": 18.084198276304505,
   "start_distance_m": 273.0,
   "end_distance_m": 323.0,
   "midpoint_distance_m": 298.0,
   "start_elevation_m": 1347.3164722899407,
   "end_elevation_m": 1356.358571428093,
   "start_xy": [
    2643740.838435823,
    1162090.2291087199
   ],
   "end_xy": [
    2643718.9027187503,
    1162050.4283095382
   ]
  },
  "max_100m": {
   "gradient_pct": 17.561324320301992,
   "start_distance_m": 274.0,
   "end_distance_m": 374.0,
   "midpoint_distance_m": 324.0,
   "start_elevation_m": 1347.480677118041,
   "end_elevation_m": 1365.042001438343,
   "start_xy": [
    2643740.466347009,
    1162089.3009115933
   ],
   "end_xy": [
    2643688.011757409,
    1162013.0737559565
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -21.19485806807006,
   "start_distance_m": 4015.0,
   "end_distance_m": 4020.0,
   "midpoint_distance_m": 4017.5,
   "start_elevation_m": 1752.3211421522683,
   "end_elevation_m": 1751.2613992488648,
   "start_xy": [
    2641682.929589315,
    1160576.1207731836
   ],
   "end_xy": [
    2641682.2687930046,
    1160571.1700723376
   ]
  },
  "min_10m": {
   "gradient_pct": -8.607724943947233,
   "start_distance_m": 4010.0,
   "end_distance_m": 4020.0,
   "midpoint_distance_m": 4015.0,
   "start_elevation_m": 1752.1221717432595,
   "end_elevation_m": 1751.2613992488648,
   "start_xy": [
    2641686.595759083,
    1160579.3680739484
   ],
   "end_xy": [
    2641682.2687930046,
    1160571.1700723376
   ]
  },
  "min_20m": {
   "gradient_pct": -4.2667870991647305,
   "start_distance_m": 3999.0,
   "end_distance_m": 4019.0,
   "midpoint_distance_m": 4009.0,
   "start_elevation_m": 1752.1079701459935,
   "end_elevation_m": 1751.2546127261605,
   "start_xy": [
    2641695.040173991,
    1160586.3814192086
   ],
   "end_xy": [
    2641682.3827945935,
    1160572.1635529033
   ]
  },
  "min_25m": {
   "gradient_pct": -3.0713785862508303,
   "start_distance_m": 3995.0,
   "end_distance_m": 4020.0,
   "midpoint_distance_m": 4007.5,
   "start_elevation_m": 1752.0292438954275,
   "end_elevation_m": 1751.2613992488648,
   "start_xy": [
    2641697.952327835,
    1160589.1235639658
   ],
   "end_xy": [
    2641682.2687930046,
    1160571.1700723376
   ]
  },
  "min_50m": {
   "gradient_pct": 2.2008255757887127,
   "start_distance_m": 3970.0,
   "end_distance_m": 4020.0,
   "midpoint_distance_m": 3995.0,
   "start_elevation_m": 1750.1609864609704,
   "end_elevation_m": 1751.2613992488648,
   "start_xy": [
    2641714.438637012,
    1160607.7961723348
   ],
   "end_xy": [
    2641682.2687930046,
    1160571.1700723376
   ]
  },
  "min_100m": {
   "gradient_pct": 3.691875374315032,
   "start_distance_m": 2269.0,
   "end_distance_m": 2369.0,
   "midpoint_distance_m": 2319.0,
   "start_elevation_m": 1562.676412202906,
   "end_elevation_m": 1566.368287577221,
   "start_xy": [
    2642643.3862236184,
    1161232.30635952
   ],
   "end_xy": [
    2642621.5114410617,
    1161142.9168936955
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.193480165300116,
   "start_distance_m": 3618.0,
   "end_distance_m": 3620.0,
   "midpoint_distance_m": 3619.0,
   "start_elevation_m": 1711.3445353672594,
   "end_elevation_m": 1712.2684049705654,
   "start_xy": [
    2641975.9624234885,
    1160808.2723881116
   ],
   "end_xy": [
    2641974.4081401643,
    1160807.0137392846
   ]
  },
  "max_3m": {
   "gradient_pct": 36.99852044774919,
   "start_distance_m": 3192.0,
   "end_distance_m": 3195.0,
   "midpoint_distance_m": 3193.5,
   "start_elevation_m": 1659.8698694451468,
   "end_elevation_m": 1660.9798250585793,
   "start_xy": [
    2642214.5021285587,
    1161017.909004175
   ],
   "end_xy": [
    2642213.2200196185,
    1161020.6212348125
   ]
  }
 },
 "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": 0.008,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.038,
   "windows_resited": [
    3.0,
    5.0,
    10.0,
    20.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 3,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 3117.0,
     "end_m": 3142.0,
     "raw_pct": 21.56,
     "reason": "hump+mask-edge"
    },
    {
     "window_m": 20.0,
     "start_m": 1659.0,
     "end_m": 1679.0,
     "raw_pct": 23.93,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 3301.0,
     "end_m": 3311.0,
     "raw_pct": 31.5,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 3302.0,
     "end_m": 3307.0,
     "raw_pct": 39.36,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 2954.0,
     "end_m": 2979.0,
     "raw_pct": 20.17,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 2956.0,
     "end_m": 2976.0,
     "raw_pct": 22.87,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 2966.0,
     "end_m": 2976.0,
     "raw_pct": 29.95,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 2968.0,
     "end_m": 2973.0,
     "raw_pct": 38.21,
     "reason": "hump+short-step"
    },
    {
     "window_m": 20.0,
     "start_m": 2917.0,
     "end_m": 2937.0,
     "raw_pct": 22.46,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 1623.0,
     "end_m": 1633.0,
     "raw_pct": 26.71,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 1623.0,
     "end_m": 1628.0,
     "raw_pct": 34.45,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "excluded_ranges_m": [
   [
    1621.0,
    1635.0
   ],
   [
    1657.0,
    1681.0
   ],
   [
    2915.0,
    2939.0
   ],
   [
    2952.0,
    2981.0
   ],
   [
    3057.0,
    3062.0
   ],
   [
    3111.0,
    3144.0
   ],
   [
    3274.0,
    3279.0
   ],
   [
    3299.0,
    3313.0
   ],
   [
    3319.0,
    3324.0
   ],
   [
    3609.0,
    3615.0
   ],
   [
    4018.0,
    4023.0
   ]
  ],
  "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_2025_2641-1160_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2641-1161_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2642-1160_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2642-1161_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2643-1161_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2643-1162_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-12T01:28:04+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-ch-ch/batch-switzerland-rchunk02.pbf",
  "osm_snapshot": "",
  "run_id": "texture-ch-ch-260912",
  "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": [
   "2641-1160",
   "2641-1161",
   "2642-1160",
   "2642-1161",
   "2643-1161",
   "2643-1162"
  ],
  "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": "Grindelwald",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}