{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.5687, 8.9453)",
 "slug": "discovered-lane-47-5687-8-9453",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.114613513287964,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 817.0,
   "end_distance_m": 819.0,
   "start_elevation_m": 497.7359118233143,
   "end_elevation_m": 498.2182040935801,
   "min_gradient_pct": -0.912303318659724
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.887931864941418,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 817.0,
   "end_distance_m": 820.0,
   "start_elevation_m": 497.7359118233143,
   "end_elevation_m": 498.42254977926257,
   "min_gradient_pct": 0.16583205427688577
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.961538840346293,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 900.0,
   "end_distance_m": 905.0,
   "start_elevation_m": 512.6807072352799,
   "end_elevation_m": 513.7787841772972,
   "min_gradient_pct": 0.20925021520270093
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.568550102183508,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 893.0,
   "end_distance_m": 903.0,
   "start_elevation_m": 511.1880875906413,
   "end_elevation_m": 513.3449426008597,
   "min_gradient_pct": 0.7672633081483582
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.026505168380822,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 886.0,
   "end_distance_m": 906.0,
   "start_elevation_m": 509.77331548501104,
   "end_elevation_m": 513.9786165186872,
   "min_gradient_pct": 0.9885785653352741
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.554587108578517,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 883.0,
   "end_distance_m": 908.0,
   "start_elevation_m": 509.226348003473,
   "end_elevation_m": 514.3649947806176,
   "min_gradient_pct": 1.1488858538461955
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.628453946472064,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 857.0,
   "end_distance_m": 907.0,
   "start_elevation_m": 504.36436959657,
   "end_elevation_m": 514.178596569806,
   "min_gradient_pct": 1.7061931480789099
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.107328999229708,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 809.0,
   "end_distance_m": 909.0,
   "start_elevation_m": 496.4296483468104,
   "end_elevation_m": 514.5369773460401,
   "min_gradient_pct": 3.2645814401631696
  }
 ],
 "shape": {
  "ascent_concentration": 0.367,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 563.0,
  "shape_class": "sustained"
 },
 "length_m": 935.9999999999,
 "start_elevation_m": 406.9271031318358,
 "end_elevation_m": 515.8959625551649,
 "endpoint_gain_m": 108.96885942332915,
 "overall_gradient_pct": 11.641972160613333,
 "accumulated_ascent_m": 109.04602501753766,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.961538840346293,
   "start_distance_m": 900.0,
   "end_distance_m": 905.0,
   "midpoint_distance_m": 902.5,
   "start_elevation_m": 512.6807072352799,
   "end_elevation_m": 513.7787841772972,
   "start_xy": [
    2713491.4179303236,
    1269450.514811003
   ],
   "end_xy": [
    2713493.3729135077,
    1269445.9128505697
   ]
  },
  "max_10m": {
   "gradient_pct": 21.568550102183508,
   "start_distance_m": 893.0,
   "end_distance_m": 903.0,
   "midpoint_distance_m": 898.0,
   "start_elevation_m": 511.1880875906413,
   "end_elevation_m": 513.3449426008597,
   "start_xy": [
    2713488.1882666764,
    1269456.712154397
   ],
   "end_xy": [
    2713492.590992236,
    1269447.753665327
   ]
  },
  "max_20m": {
   "gradient_pct": 21.026505168380822,
   "start_distance_m": 886.0,
   "end_distance_m": 906.0,
   "midpoint_distance_m": 896.0,
   "start_elevation_m": 509.77331548501104,
   "end_elevation_m": 513.9786165186872,
   "start_xy": [
    2713484.225214343,
    1269462.4614892374
   ],
   "end_xy": [
    2713493.742268107,
    1269444.984587979
   ]
  },
  "max_25m": {
   "gradient_pct": 20.554587108578517,
   "start_distance_m": 883.0,
   "end_distance_m": 908.0,
   "midpoint_distance_m": 895.5,
   "start_elevation_m": 509.226348003473,
   "end_elevation_m": 514.3649947806176,
   "start_xy": [
    2713482.339821634,
    1269464.7950044018
   ],
   "end_xy": [
    2713494.3165975735,
    1269443.0688433975
   ]
  },
  "max_50m": {
   "gradient_pct": 19.628453946472064,
   "start_distance_m": 857.0,
   "end_distance_m": 907.0,
   "midpoint_distance_m": 882.0,
   "start_elevation_m": 504.36436959657,
   "end_elevation_m": 514.178596569806,
   "start_xy": [
    2713461.388645572,
    1269480.0980245473
   ],
   "end_xy": [
    2713494.032585407,
    1269444.0276640665
   ]
  },
  "max_100m": {
   "gradient_pct": 18.107328999229708,
   "start_distance_m": 809.0,
   "end_distance_m": 909.0,
   "midpoint_distance_m": 859.0,
   "start_elevation_m": 496.4296483468104,
   "end_elevation_m": 514.5369773460401,
   "start_xy": [
    2713422.9276551064,
    1269508.7785714832
   ],
   "end_xy": [
    2713494.600761976,
    1269442.1100678353
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.20925021520270093,
   "start_distance_m": 3.0,
   "end_distance_m": 8.0,
   "midpoint_distance_m": 5.5,
   "start_elevation_m": 406.97239606224184,
   "end_elevation_m": 406.982858573002,
   "start_xy": [
    2713456.659061855,
    1270203.2798542997
   ],
   "end_xy": [
    2713458.6140450966,
    1270198.6778938903
   ]
  },
  "min_10m": {
   "gradient_pct": 0.7672633081483582,
   "start_distance_m": 7.0,
   "end_distance_m": 17.0,
   "midpoint_distance_m": 12.0,
   "start_elevation_m": 407.01647837734106,
   "end_elevation_m": 407.0932047081559,
   "start_xy": [
    2713458.2229045443,
    1270199.5982248462
   ],
   "end_xy": [
    2713462.1328709438,
    1270190.3943039922
   ]
  },
  "min_20m": {
   "gradient_pct": 0.9885785653352741,
   "start_distance_m": 2.0,
   "end_distance_m": 22.0,
   "midpoint_distance_m": 12.0,
   "start_elevation_m": 406.95007270193787,
   "end_elevation_m": 407.1477884150049,
   "start_xy": [
    2713456.2679213444,
    1270204.2001852733
   ],
   "end_xy": [
    2713464.088213821,
    1270185.7924963452
   ]
  },
  "min_25m": {
   "gradient_pct": 1.1488858538461955,
   "start_distance_m": 1.0,
   "end_distance_m": 26.0,
   "midpoint_distance_m": 13.5,
   "start_elevation_m": 406.94484137926446,
   "end_elevation_m": 407.232062842726,
   "start_xy": [
    2713455.877140511,
    1270205.1206690264
   ],
   "end_xy": [
    2713465.6520565613,
    1270182.1108669136
   ]
  },
  "min_50m": {
   "gradient_pct": 1.7061931480789099,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 406.9271031318358,
   "end_elevation_m": 407.78019970587525,
   "start_xy": [
    2713455.486,
    1270206.041
   ],
   "end_xy": [
    2713475.037038659,
    1270160.0219089384
   ]
  },
  "min_100m": {
   "gradient_pct": 3.2645814401631696,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 406.9271031318358,
   "end_elevation_m": 410.19168457199896,
   "start_xy": [
    2713455.486,
    1270206.041
   ],
   "end_xy": [
    2713451.959155351,
    1270122.985100496
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.114613513287964,
   "start_distance_m": 817.0,
   "end_distance_m": 819.0,
   "midpoint_distance_m": 818.0,
   "start_elevation_m": 497.7359118233143,
   "end_elevation_m": 498.2182040935801,
   "start_xy": [
    2713429.1329413936,
    1269503.730868555
   ],
   "end_xy": [
    2713430.720862,
    1269502.5149293502
   ]
  },
  "max_3m": {
   "gradient_pct": 22.887931864941418,
   "start_distance_m": 817.0,
   "end_distance_m": 820.0,
   "midpoint_distance_m": 818.5,
   "start_elevation_m": 497.7359118233143,
   "end_elevation_m": 498.42254977926257,
   "start_xy": [
    2713429.1329413936,
    1269503.730868555
   ],
   "end_xy": [
    2713431.514822303,
    1269501.9069597481
   ]
  }
 },
 "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": []
 },
 "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_2019_2713-1267_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2713-1268_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2713-1269_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2713-1270_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2714-1267_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2019_2714-1268_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-15T04:05:14+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-260914",
  "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": [
   "2713-1267",
   "2713-1268",
   "2713-1269",
   "2713-1270",
   "2714-1267",
   "2714-1268"
  ],
  "route_cut_m": 936.0,
  "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": "Felben-Wellhausen",
  "county": "Thurgau",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}