{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.0356, 7.6795)",
 "slug": "discovered-lane-47-0356-7-6795",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 43.1188611816026,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 303.0,
   "end_distance_m": 305.0,
   "start_elevation_m": 676.4364079168138,
   "end_elevation_m": 677.2987851404458,
   "min_gradient_pct": -13.840047759350682
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.47200859764037,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 302.0,
   "end_distance_m": 305.0,
   "start_elevation_m": 676.3846248825166,
   "end_elevation_m": 677.2987851404458,
   "min_gradient_pct": -8.85979944423525
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.385659676082014,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 45.0,
   "end_distance_m": 50.0,
   "start_elevation_m": 641.7854019984699,
   "end_elevation_m": 642.854684982274,
   "min_gradient_pct": -6.332923186782864
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.069239485985918,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 42.0,
   "end_distance_m": 52.0,
   "start_elevation_m": 641.1563999006406,
   "end_elevation_m": 643.2633238492392,
   "min_gradient_pct": -5.109624042518135
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.696924416471347,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 42.0,
   "end_distance_m": 62.0,
   "start_elevation_m": 641.1563999006406,
   "end_elevation_m": 645.2957847839349,
   "min_gradient_pct": -4.039385617975881
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.637115881682348,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 41.0,
   "end_distance_m": 66.0,
   "start_elevation_m": 640.9672389500497,
   "end_elevation_m": 646.1265179204703,
   "min_gradient_pct": -3.9931917021090158
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.476449320908387,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 42.0,
   "end_distance_m": 92.0,
   "start_elevation_m": 641.1563999006406,
   "end_elevation_m": 651.3946245610948,
   "min_gradient_pct": -3.3779352372873745
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.69517777544843,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 9.0,
   "end_distance_m": 109.0,
   "start_elevation_m": 634.879980276576,
   "end_elevation_m": 654.5751580520244,
   "min_gradient_pct": -1.476726634221336
  }
 ],
 "shape": {
  "ascent_concentration": 0.337,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 444.0,
  "shape_class": "sustained"
 },
 "length_m": 2237.2000000001467,
 "start_elevation_m": 633.6846839192033,
 "end_elevation_m": 849.2391808447985,
 "endpoint_gain_m": 215.55449692559523,
 "overall_gradient_pct": 9.635012378221933,
 "accumulated_ascent_m": 221.07344231399554,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.385659676082014,
   "start_distance_m": 45.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 47.5,
   "start_elevation_m": 641.7854019984699,
   "end_elevation_m": 642.854684982274,
   "start_xy": [
    2618833.1074336227,
    1209404.2433483354
   ],
   "end_xy": [
    2618828.848730216,
    1209406.8631659234
   ]
  },
  "max_10m": {
   "gradient_pct": 21.069239485985918,
   "start_distance_m": 42.0,
   "end_distance_m": 52.0,
   "midpoint_distance_m": 47.0,
   "start_elevation_m": 641.1563999006406,
   "end_elevation_m": 643.2633238492392,
   "start_xy": [
    2618835.6629921473,
    1209402.6720048299
   ],
   "end_xy": [
    2618827.145139029,
    1209407.910914494
   ]
  },
  "max_20m": {
   "gradient_pct": 20.696924416471347,
   "start_distance_m": 42.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 641.1563999006406,
   "end_elevation_m": 645.2957847839349,
   "start_xy": [
    2618835.6629921473,
    1209402.6720048299
   ],
   "end_xy": [
    2618818.6272859103,
    1209413.149824158
   ]
  },
  "max_25m": {
   "gradient_pct": 20.637115881682348,
   "start_distance_m": 41.0,
   "end_distance_m": 66.0,
   "midpoint_distance_m": 53.5,
   "start_elevation_m": 640.9672389500497,
   "end_elevation_m": 646.1265179204703,
   "start_xy": [
    2618836.514787741,
    1209402.1481305445
   ],
   "end_xy": [
    2618815.2203780976,
    1209415.2457674614
   ]
  },
  "max_50m": {
   "gradient_pct": 20.476449320908387,
   "start_distance_m": 42.0,
   "end_distance_m": 92.0,
   "midpoint_distance_m": 67.0,
   "start_elevation_m": 641.1563999006406,
   "end_elevation_m": 651.3946245610948,
   "start_xy": [
    2618835.6629921473,
    1209402.6720048299
   ],
   "end_xy": [
    2618793.0744481822,
    1209428.8677243574
   ]
  },
  "max_100m": {
   "gradient_pct": 19.69517777544843,
   "start_distance_m": 9.0,
   "end_distance_m": 109.0,
   "midpoint_distance_m": 59.0,
   "start_elevation_m": 634.879980276576,
   "end_elevation_m": 654.5751580520244,
   "start_xy": [
    2618863.770942475,
    1209385.382035379
   ],
   "end_xy": [
    2618778.6493926514,
    1209437.8627529123
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.332923186782864,
   "start_distance_m": 1851.0,
   "end_distance_m": 1856.0,
   "midpoint_distance_m": 1853.5,
   "start_elevation_m": 823.5121611748582,
   "end_elevation_m": 823.195515015519,
   "start_xy": [
    2617684.855803465,
    1209806.7139407168
   ],
   "end_xy": [
    2617679.857243658,
    1209806.8339400922
   ]
  },
  "min_10m": {
   "gradient_pct": -5.109624042518135,
   "start_distance_m": 1845.0,
   "end_distance_m": 1855.0,
   "midpoint_distance_m": 1850.0,
   "start_elevation_m": 823.7470672627747,
   "end_elevation_m": 823.2361048585229,
   "start_xy": [
    2617690.8483531075,
    1209806.7345246256
   ],
   "end_xy": [
    2617680.8569555436,
    1209806.809937067
   ]
  },
  "min_20m": {
   "gradient_pct": -4.039385617975881,
   "start_distance_m": 1747.0,
   "end_distance_m": 1767.0,
   "midpoint_distance_m": 1757.0,
   "start_elevation_m": 824.8908711627004,
   "end_elevation_m": 824.0829940391052,
   "start_xy": [
    2617786.588809257,
    1209805.7357843218
   ],
   "end_xy": [
    2617768.160018196,
    1209813.116382969
   ]
  },
  "min_25m": {
   "gradient_pct": -3.9931917021090158,
   "start_distance_m": 1739.0,
   "end_distance_m": 1764.0,
   "midpoint_distance_m": 1751.5,
   "start_elevation_m": 825.1732422620242,
   "end_elevation_m": 824.174944336497,
   "start_xy": [
    2617792.7872012826,
    1209800.7256609031
   ],
   "end_xy": [
    2617771.092688141,
    1209812.484365851
   ]
  },
  "min_50m": {
   "gradient_pct": -3.3779352372873745,
   "start_distance_m": 1735.0,
   "end_distance_m": 1785.0,
   "midpoint_distance_m": 1760.0,
   "start_elevation_m": 825.3026880052162,
   "end_elevation_m": 823.6137203865725,
   "start_xy": [
    2617795.6700909766,
    1209797.952766925
   ],
   "end_xy": [
    2617750.2861625417,
    1209814.4235901625
   ]
  },
  "min_100m": {
   "gradient_pct": -1.476726634221336,
   "start_distance_m": 1735.0,
   "end_distance_m": 1835.0,
   "midpoint_distance_m": 1785.0,
   "start_elevation_m": 825.3026880052162,
   "end_elevation_m": 823.8259613709948,
   "start_xy": [
    2617795.6700909766,
    1209797.952766925
   ],
   "end_xy": [
    2617700.7629639893,
    1209808.0384950894
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 43.1188611816026,
   "start_distance_m": 303.0,
   "end_distance_m": 305.0,
   "midpoint_distance_m": 304.0,
   "start_elevation_m": 676.4364079168138,
   "end_elevation_m": 677.2987851404458,
   "start_xy": [
    2618619.2149021244,
    1209547.387653102
   ],
   "end_xy": [
    2618617.4957829304,
    1209548.4097240076
   ]
  },
  "max_3m": {
   "gradient_pct": 30.47200859764037,
   "start_distance_m": 302.0,
   "end_distance_m": 305.0,
   "midpoint_distance_m": 303.5,
   "start_elevation_m": 676.3846248825166,
   "end_elevation_m": 677.2987851404458,
   "start_xy": [
    2618620.074591928,
    1209546.8768366566
   ],
   "end_xy": [
    2618617.4957829304,
    1209548.4097240076
   ]
  }
 },
 "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",
   "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_2025_2617-1209_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2617-1210_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2618-1209_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-15T21:45:51+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": [
   "2617-1209",
   "2617-1210",
   "2618-1209"
  ],
  "route_cut_m": 2237.2,
  "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": "R\u00fcegsau",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}