{
 "ocl_version": "0.1.0",
 "name": "Chemin des Bigni\u00e8res",
 "slug": "chemin-des-bignieres",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 30.073764809952763,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 54.0,
   "end_distance_m": 56.0,
   "start_elevation_m": 636.0894031549781,
   "end_elevation_m": 636.6908784511771,
   "min_gradient_pct": -15.54076663776982
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.176032839268373,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 57.0,
   "end_distance_m": 60.0,
   "start_elevation_m": 636.9245375255798,
   "end_elevation_m": 637.7998185107579,
   "min_gradient_pct": -14.834317103278257
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.465499187766454,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 55.0,
   "end_distance_m": 60.0,
   "start_elevation_m": 636.3765435513695,
   "end_elevation_m": 637.7998185107579,
   "min_gradient_pct": -14.705275276483007
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.57450402217046,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 50.0,
   "end_distance_m": 60.0,
   "start_elevation_m": 635.0423681085408,
   "end_elevation_m": 637.7998185107579,
   "min_gradient_pct": -12.822109873900445
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 27.124632677415548,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 43.0,
   "end_distance_m": 63.0,
   "start_elevation_m": 633.1593721921023,
   "end_elevation_m": 638.5842987275854,
   "min_gradient_pct": -3.5472919395448343
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 26.781958340722213,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 42.0,
   "end_distance_m": 67.0,
   "start_elevation_m": 632.906636300453,
   "end_elevation_m": 639.6021258856335,
   "min_gradient_pct": 0.9740698303317004
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 24.6004848025284,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 36.0,
   "end_distance_m": 86.0,
   "start_elevation_m": 631.50384304997,
   "end_elevation_m": 643.8040854512342,
   "min_gradient_pct": 11.93755873609257
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 22.78582624657463,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 22.0,
   "end_distance_m": 122.0,
   "start_elevation_m": 628.7329089995484,
   "end_elevation_m": 651.518735246123,
   "min_gradient_pct": 14.141712937368538
  }
 ],
 "shape": {
  "ascent_concentration": 0.359,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 211.0,
  "shape_class": "sustained"
 },
 "length_m": 230.6901295151936,
 "start_elevation_m": 629.0735887404945,
 "end_elevation_m": 667.0809685927777,
 "endpoint_gain_m": 38.00737985228318,
 "overall_gradient_pct": 16.475511948498845,
 "accumulated_ascent_m": 39.498872892028544,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.465499187766454,
   "start_distance_m": 55.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 57.5,
   "start_elevation_m": 636.3765435513695,
   "end_elevation_m": 637.7998185107579,
   "start_xy": [
    2559893.405090022,
    1143663.6427648219
   ],
   "end_xy": [
    2559898.38034986,
    1143663.1459913205
   ]
  },
  "max_10m": {
   "gradient_pct": 27.57450402217046,
   "start_distance_m": 50.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 55.0,
   "start_elevation_m": 635.0423681085408,
   "end_elevation_m": 637.7998185107579,
   "start_xy": [
    2559888.4153641406,
    1143663.3783062818
   ],
   "end_xy": [
    2559898.38034986,
    1143663.1459913205
   ]
  },
  "max_20m": {
   "gradient_pct": 27.124632677415548,
   "start_distance_m": 43.0,
   "end_distance_m": 63.0,
   "midpoint_distance_m": 53.0,
   "start_elevation_m": 633.1593721921023,
   "end_elevation_m": 638.5842987275854,
   "start_xy": [
    2559881.438452034,
    1143662.8478630935
   ],
   "end_xy": [
    2559901.364572667,
    1143662.8398768725
   ]
  },
  "max_25m": {
   "gradient_pct": 26.781958340722213,
   "start_distance_m": 42.0,
   "end_distance_m": 67.0,
   "midpoint_distance_m": 54.5,
   "start_elevation_m": 632.906636300453,
   "end_elevation_m": 639.6021258856335,
   "start_xy": [
    2559880.451161565,
    1143662.688936932
   ],
   "end_xy": [
    2559905.3021538276,
    1143662.1411094018
   ]
  },
  "max_50m": {
   "gradient_pct": 24.6004848025284,
   "start_distance_m": 36.0,
   "end_distance_m": 86.0,
   "midpoint_distance_m": 61.0,
   "start_elevation_m": 631.50384304997,
   "end_elevation_m": 643.8040854512342,
   "start_xy": [
    2559874.5277761724,
    1143661.73316635
   ],
   "end_xy": [
    2559922.4482048904,
    1143654.388082385
   ]
  },
  "max_100m": {
   "gradient_pct": 22.78582624657463,
   "start_distance_m": 22.0,
   "end_distance_m": 122.0,
   "midpoint_distance_m": 72.0,
   "start_elevation_m": 628.7329089995484,
   "end_elevation_m": 651.518735246123,
   "start_xy": [
    2559860.9015908483,
    1143658.5983482467
   ],
   "end_xy": [
    2559951.3923648163,
    1143633.2801931417
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.705275276483007,
   "start_distance_m": 4.0,
   "end_distance_m": 9.0,
   "midpoint_distance_m": 6.5,
   "start_elevation_m": 628.6915534908286,
   "end_elevation_m": 627.9562897270044,
   "start_xy": [
    2559845.27132624,
    1143662.7711109277
   ],
   "end_xy": [
    2559849.2493078066,
    1143659.7419783215
   ]
  },
  "min_10m": {
   "gradient_pct": -12.822109873900445,
   "start_distance_m": 1.0,
   "end_distance_m": 11.0,
   "midpoint_distance_m": 6.0,
   "start_elevation_m": 628.9871562952809,
   "end_elevation_m": 627.7049453078909,
   "start_xy": [
    2559842.884538342,
    1143664.588593415
   ],
   "end_xy": [
    2559850.8893162245,
    1143658.5990782208
   ]
  },
  "min_20m": {
   "gradient_pct": -3.5472919395448343,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 629.0735887404945,
   "end_elevation_m": 628.3641303525856,
   "start_xy": [
    2559842.0889338,
    1143665.194409695
   ],
   "end_xy": [
    2559858.9966083956,
    1143657.9929481235
   ]
  },
  "min_25m": {
   "gradient_pct": 0.9740698303317004,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 629.0735887404945,
   "end_elevation_m": 629.3171061980775,
   "start_xy": [
    2559842.0889338,
    1143665.194409695
   ],
   "end_xy": [
    2559863.784163921,
    1143659.429475099
   ]
  },
  "min_50m": {
   "gradient_pct": 11.93755873609257,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 629.0735887404945,
   "end_elevation_m": 635.0423681085408,
   "start_xy": [
    2559842.0889338,
    1143665.194409695
   ],
   "end_xy": [
    2559888.4153641406,
    1143663.3783062818
   ]
  },
  "min_100m": {
   "gradient_pct": 14.141712937368538,
   "start_distance_m": 130.0,
   "end_distance_m": 230.0,
   "midpoint_distance_m": 180.0,
   "start_elevation_m": 652.9338585160015,
   "end_elevation_m": 667.07557145337,
   "start_xy": [
    2559956.961916952,
    1143627.5373644086
   ],
   "end_xy": [
    2559967.73628873,
    1143651.7351319487
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 30.073764809952763,
   "start_distance_m": 54.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 55.0,
   "start_elevation_m": 636.0894031549781,
   "end_elevation_m": 636.6908784511771,
   "start_xy": [
    2559892.407113806,
    1143663.6343227667
   ],
   "end_xy": [
    2559894.4001025697,
    1143663.5430159252
   ]
  },
  "max_3m": {
   "gradient_pct": 29.176032839268373,
   "start_distance_m": 57.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 58.5,
   "start_elevation_m": 636.9245375255798,
   "end_elevation_m": 637.7998185107579,
   "start_xy": [
    2559895.395189146,
    1143663.444007311
   ],
   "end_xy": [
    2559898.38034986,
    1143663.1459913205
   ]
  }
 },
 "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_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_2559-1143_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2560-1143_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T06:44:39+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-run7-extent-260911",
  "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": [
   "2559-1143",
   "2560-1143"
  ],
  "route_base_cut_m": 40.1,
  "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": "Montreux",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}