{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.8505, 6.6471)",
 "slug": "discovered-lane-46-8505-6-6471",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.949412610959598,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 483.0,
   "end_distance_m": 485.0,
   "start_elevation_m": 805.4742216712408,
   "end_elevation_m": 805.97320992346,
   "min_gradient_pct": -1.6101490004984953
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.367802291067164,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 482.0,
   "end_distance_m": 485.0,
   "start_elevation_m": 805.242175854728,
   "end_elevation_m": 805.97320992346,
   "min_gradient_pct": -1.3830265080249167
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.12805686547017,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 483.0,
   "end_distance_m": 488.0,
   "start_elevation_m": 805.4742216712408,
   "end_elevation_m": 806.6806245145143,
   "min_gradient_pct": -0.4825864510326028
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.6278555846568,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 479.0,
   "end_distance_m": 489.0,
   "start_elevation_m": 804.619505052415,
   "end_elevation_m": 806.8822906108807,
   "min_gradient_pct": 0.10645862621231572
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.93714720720243,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 469.0,
   "end_distance_m": 489.0,
   "start_elevation_m": 802.6948611694402,
   "end_elevation_m": 806.8822906108807,
   "min_gradient_pct": 5.621868171792244
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.351075459581807,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 465.0,
   "end_distance_m": 490.0,
   "start_elevation_m": 801.9745719072714,
   "end_elevation_m": 807.0623407721669,
   "min_gradient_pct": 7.047879862806894
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.030491382494347,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 441.0,
   "end_distance_m": 491.0,
   "start_elevation_m": 797.7156713486823,
   "end_elevation_m": 807.2309170399295,
   "min_gradient_pct": 11.851019227907727
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.366585876732984,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 396.0,
   "end_distance_m": 496.0,
   "start_elevation_m": 790.627867232022,
   "end_elevation_m": 807.994453108755,
   "min_gradient_pct": 12.599379040893837
  }
 ],
 "shape": {
  "ascent_concentration": 0.293,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 521.0,
  "shape_class": "sustained"
 },
 "length_m": 532.1270097470026,
 "start_elevation_m": 733.6963232524403,
 "end_elevation_m": 811.1626466406217,
 "endpoint_gain_m": 77.46632338818142,
 "overall_gradient_pct": 14.557863436590532,
 "accumulated_ascent_m": 77.52915166380308,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.12805686547017,
   "start_distance_m": 483.0,
   "end_distance_m": 488.0,
   "midpoint_distance_m": 485.5,
   "start_elevation_m": 805.4742216712408,
   "end_elevation_m": 806.6806245145143,
   "start_xy": [
    2539596.1963261967,
    1189219.5741128738
   ],
   "end_xy": [
    2539596.0962978904,
    1189224.5731107972
   ]
  },
  "max_10m": {
   "gradient_pct": 22.6278555846568,
   "start_distance_m": 479.0,
   "end_distance_m": 489.0,
   "midpoint_distance_m": 484.0,
   "start_elevation_m": 804.619505052415,
   "end_elevation_m": 806.8822906108807,
   "start_xy": [
    2539597.078145796,
    1189215.7045958024
   ],
   "end_xy": [
    2539596.077261341,
    1189225.5729295858
   ]
  },
  "max_20m": {
   "gradient_pct": 20.93714720720243,
   "start_distance_m": 469.0,
   "end_distance_m": 489.0,
   "midpoint_distance_m": 479.0,
   "start_elevation_m": 802.6948611694402,
   "end_elevation_m": 806.8822906108807,
   "start_xy": [
    2539600.0420934875,
    1189206.1539406374
   ],
   "end_xy": [
    2539596.077261341,
    1189225.5729295858
   ]
  },
  "max_25m": {
   "gradient_pct": 20.351075459581807,
   "start_distance_m": 465.0,
   "end_distance_m": 490.0,
   "midpoint_distance_m": 477.5,
   "start_elevation_m": 801.9745719072714,
   "end_elevation_m": 807.0623407721669,
   "start_xy": [
    2539601.2276725643,
    1189202.3336785715
   ],
   "end_xy": [
    2539596.0582247907,
    1189226.5727483742
   ]
  },
  "max_50m": {
   "gradient_pct": 19.030491382494347,
   "start_distance_m": 441.0,
   "end_distance_m": 491.0,
   "midpoint_distance_m": 466.0,
   "start_elevation_m": 797.7156713486823,
   "end_elevation_m": 807.2309170399295,
   "start_xy": [
    2539608.3411470247,
    1189179.4121061754
   ],
   "end_xy": [
    2539596.039188241,
    1189227.5725671628
   ]
  },
  "max_100m": {
   "gradient_pct": 17.366585876732984,
   "start_distance_m": 396.0,
   "end_distance_m": 496.0,
   "midpoint_distance_m": 446.0,
   "start_elevation_m": 790.627867232022,
   "end_elevation_m": 807.994453108755,
   "start_xy": [
    2539624.399586283,
    1189137.4785598842
   ],
   "end_xy": [
    2539598.1858540038,
    1189231.848756026
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.4825864510326028,
   "start_distance_m": 522.0,
   "end_distance_m": 527.0,
   "midpoint_distance_m": 524.5,
   "start_elevation_m": 811.1570396060606,
   "end_elevation_m": 811.132910283509,
   "start_xy": [
    2539615.879193252,
    1189250.7739227472
   ],
   "end_xy": [
    2539619.484801882,
    1189254.2379646648
   ]
  },
  "min_10m": {
   "gradient_pct": 0.10645862621231572,
   "start_distance_m": 522.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 527.0,
   "start_elevation_m": 811.1570396060606,
   "end_elevation_m": 811.1676854686818,
   "start_xy": [
    2539615.879193252,
    1189250.7739227472
   ],
   "end_xy": [
    2539623.090410512,
    1189257.7020065826
   ]
  },
  "min_20m": {
   "gradient_pct": 5.621868171792244,
   "start_distance_m": 512.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 522.0,
   "start_elevation_m": 810.0433118343234,
   "end_elevation_m": 811.1676854686818,
   "start_xy": [
    2539608.59392307,
    1189243.9238881264
   ],
   "end_xy": [
    2539623.090410512,
    1189257.7020065826
   ]
  },
  "min_25m": {
   "gradient_pct": 7.047879862806894,
   "start_distance_m": 507.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 519.5,
   "start_elevation_m": 809.4057155029801,
   "end_elevation_m": 811.1676854686818,
   "start_xy": [
    2539604.9453254165,
    1189240.5051551498
   ],
   "end_xy": [
    2539623.090410512,
    1189257.7020065826
   ]
  },
  "min_50m": {
   "gradient_pct": 11.851019227907727,
   "start_distance_m": 482.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 507.0,
   "start_elevation_m": 805.242175854728,
   "end_elevation_m": 811.1676854686818,
   "start_xy": [
    2539596.2169135483,
    1189218.5743248158
   ],
   "end_xy": [
    2539623.090410512,
    1189257.7020065826
   ]
  },
  "min_100m": {
   "gradient_pct": 12.599379040893837,
   "start_distance_m": 79.0,
   "end_distance_m": 179.0,
   "midpoint_distance_m": 129.0,
   "start_elevation_m": 745.0553341657655,
   "end_elevation_m": 757.6547132066594,
   "start_xy": [
    2539744.3597045518,
    1188849.3098037073
   ],
   "end_xy": [
    2539685.427182193,
    1188929.6853069512
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.949412610959598,
   "start_distance_m": 483.0,
   "end_distance_m": 485.0,
   "midpoint_distance_m": 484.0,
   "start_elevation_m": 805.4742216712408,
   "end_elevation_m": 805.97320992346,
   "start_xy": [
    2539596.1963261967,
    1189219.5741128738
   ],
   "end_xy": [
    2539596.1551514934,
    1189221.5736889897
   ]
  },
  "max_3m": {
   "gradient_pct": 24.367802291067164,
   "start_distance_m": 482.0,
   "end_distance_m": 485.0,
   "midpoint_distance_m": 483.5,
   "start_elevation_m": 805.242175854728,
   "end_elevation_m": 805.97320992346,
   "start_xy": [
    2539596.2169135483,
    1189218.5743248158
   ],
   "end_xy": [
    2539596.1551514934,
    1189221.5736889897
   ]
  }
 },
 "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_2021_2539-1188_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2539-1189_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:36:18+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10-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": [
   "2539-1188",
   "2539-1189"
  ],
  "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": "T\u00e9venon",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}