{
 "ocl_version": "0.1.0",
 "name": "Route des Serpenteys",
 "slug": "route-des-serpenteys",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.021549111183504,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 585.0,
   "end_distance_m": 587.0,
   "start_elevation_m": 1045.6485224341507,
   "end_elevation_m": 1046.1089534163743,
   "min_gradient_pct": -11.760409826445084,
   "suppressed_max_gradient_pct": 41.08182964790785,
   "suppressed_location_m": [
    460.0,
    462.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.11252263202732,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 584.0,
   "end_distance_m": 587.0,
   "start_elevation_m": 1045.4155777374135,
   "end_elevation_m": 1046.1089534163743,
   "min_gradient_pct": -6.142234845704782,
   "suppressed_max_gradient_pct": 32.94392504223348,
   "suppressed_location_m": [
    460.0,
    463.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.533464742214164,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 583.0,
   "end_distance_m": 588.0,
   "start_elevation_m": 1045.1966440875344,
   "end_elevation_m": 1046.3233173246451,
   "min_gradient_pct": -5.542000102045677,
   "suppressed_max_gradient_pct": 25.21300590899955,
   "suppressed_location_m": [
    460.0,
    465.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.24164513552978,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 580.0,
   "end_distance_m": 590.0,
   "start_elevation_m": 1044.5346397462336,
   "end_elevation_m": 1046.7588042597865,
   "min_gradient_pct": -5.365825735314047
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.682548303558633,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 575.0,
   "end_distance_m": 595.0,
   "start_elevation_m": 1043.4744276472481,
   "end_elevation_m": 1047.8109373079599,
   "min_gradient_pct": -4.651916133904024
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.386112012484773,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 572.0,
   "end_distance_m": 597.0,
   "start_elevation_m": 1042.8558865409987,
   "end_elevation_m": 1048.2024145441198,
   "min_gradient_pct": -4.433304326746111
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.99479352859862,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 563.0,
   "end_distance_m": 613.0,
   "start_elevation_m": 1041.2353214412494,
   "end_elevation_m": 1051.2327182055487,
   "min_gradient_pct": -3.5712170636493283
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.49067205661663,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 513.0,
   "end_distance_m": 613.0,
   "start_elevation_m": 1032.742046148932,
   "end_elevation_m": 1051.2327182055487,
   "min_gradient_pct": -1.3869362095281303
  }
 ],
 "shape": {
  "ascent_concentration": 0.42,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 194.0,
  "shape_class": "sustained"
 },
 "length_m": 1097.1585699130765,
 "start_elevation_m": 990.5069396777311,
 "end_elevation_m": 1083.4073953701131,
 "endpoint_gain_m": 92.90045569238202,
 "overall_gradient_pct": 8.46736818541573,
 "accumulated_ascent_m": 96.77614105716862,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.533464742214164,
   "start_distance_m": 583.0,
   "end_distance_m": 588.0,
   "midpoint_distance_m": 585.5,
   "start_elevation_m": 1045.1966440875344,
   "end_elevation_m": 1046.3233173246451,
   "start_xy": [
    2579417.6251109857,
    1147603.170267613
   ],
   "end_xy": [
    2579419.0914887628,
    1147607.9491817376
   ]
  },
  "max_10m": {
   "gradient_pct": 22.24164513552978,
   "start_distance_m": 580.0,
   "end_distance_m": 590.0,
   "midpoint_distance_m": 585.0,
   "start_elevation_m": 1044.5346397462336,
   "end_elevation_m": 1046.7588042597865,
   "start_xy": [
    2579416.780441111,
    1147600.2916337696
   ],
   "end_xy": [
    2579419.750548481,
    1147609.8374720458
   ]
  },
  "max_20m": {
   "gradient_pct": 21.682548303558633,
   "start_distance_m": 575.0,
   "end_distance_m": 595.0,
   "midpoint_distance_m": 585.0,
   "start_elevation_m": 1043.4744276472481,
   "end_elevation_m": 1047.8109373079599,
   "start_xy": [
    2579415.372657987,
    1147595.4939106978
   ],
   "end_xy": [
    2579421.398197776,
    1147614.5581978164
   ]
  },
  "max_25m": {
   "gradient_pct": 21.386112012484773,
   "start_distance_m": 572.0,
   "end_distance_m": 597.0,
   "midpoint_distance_m": 584.5,
   "start_elevation_m": 1042.8558865409987,
   "end_elevation_m": 1048.2024145441198,
   "start_xy": [
    2579414.527988112,
    1147592.6152768547
   ],
   "end_xy": [
    2579422.057257494,
    1147616.4464881246
   ]
  },
  "max_50m": {
   "gradient_pct": 19.99479352859862,
   "start_distance_m": 563.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 588.0,
   "start_elevation_m": 1041.2353214412494,
   "end_elevation_m": 1051.2327182055487,
   "start_xy": [
    2579412.3559052073,
    1147583.9133713923
   ],
   "end_xy": [
    2579428.5599792153,
    1147631.0001911193
   ]
  },
  "max_100m": {
   "gradient_pct": 18.49067205661663,
   "start_distance_m": 513.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 563.0,
   "start_elevation_m": 1032.742046148932,
   "end_elevation_m": 1051.2327182055487,
   "start_xy": [
    2579409.0438636565,
    1147534.223794296
   ],
   "end_xy": [
    2579428.5599792153,
    1147631.0001911193
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.542000102045677,
   "start_distance_m": 1030.0,
   "end_distance_m": 1035.0,
   "midpoint_distance_m": 1032.5,
   "start_elevation_m": 1085.3945906509925,
   "end_elevation_m": 1085.1174906458903,
   "start_xy": [
    2579662.8618744975,
    1147971.1792963957
   ],
   "end_xy": [
    2579667.042883509,
    1147973.921405738
   ]
  },
  "min_10m": {
   "gradient_pct": -5.365825735314047,
   "start_distance_m": 1030.0,
   "end_distance_m": 1040.0,
   "midpoint_distance_m": 1035.0,
   "start_elevation_m": 1085.3945906509925,
   "end_elevation_m": 1084.8580080774611,
   "start_xy": [
    2579662.8618744975,
    1147971.1792963957
   ],
   "end_xy": [
    2579671.2374043376,
    1147976.6408179551
   ]
  },
  "min_20m": {
   "gradient_pct": -4.651916133904024,
   "start_distance_m": 1025.0,
   "end_distance_m": 1045.0,
   "midpoint_distance_m": 1035.0,
   "start_elevation_m": 1085.62109649221,
   "end_elevation_m": 1084.6907132654292,
   "start_xy": [
    2579658.8492021575,
    1147968.1980312616
   ],
   "end_xy": [
    2579675.640921003,
    1147979.0091593526
   ]
  },
  "min_25m": {
   "gradient_pct": -4.433304326746111,
   "start_distance_m": 1025.0,
   "end_distance_m": 1050.0,
   "midpoint_distance_m": 1037.5,
   "start_elevation_m": 1085.62109649221,
   "end_elevation_m": 1084.5127704105234,
   "start_xy": [
    2579658.8492021575,
    1147968.1980312616
   ],
   "end_xy": [
    2579680.047121788,
    1147981.3724773
   ]
  },
  "min_50m": {
   "gradient_pct": -3.5712170636493283,
   "start_distance_m": 1025.0,
   "end_distance_m": 1075.0,
   "midpoint_distance_m": 1050.0,
   "start_elevation_m": 1085.62109649221,
   "end_elevation_m": 1083.8354879603853,
   "start_xy": [
    2579658.8492021575,
    1147968.1980312616
   ],
   "end_xy": [
    2579702.125086618,
    1147993.1004809416
   ]
  },
  "min_100m": {
   "gradient_pct": -1.3869362095281303,
   "start_distance_m": 997.0,
   "end_distance_m": 1097.0,
   "midpoint_distance_m": 1047.0,
   "start_elevation_m": 1084.7963317665312,
   "end_elevation_m": 1083.409395557003,
   "start_xy": [
    2579637.1405697754,
    1147950.5359652378
   ],
   "end_xy": [
    2579722.0766488183,
    1148002.3309610866
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.021549111183504,
   "start_distance_m": 585.0,
   "end_distance_m": 587.0,
   "midpoint_distance_m": 586.0,
   "start_elevation_m": 1045.6485224341507,
   "end_elevation_m": 1046.1089534163743,
   "start_xy": [
    2579418.1882242355,
    1147605.0893568415
   ],
   "end_xy": [
    2579418.761958904,
    1147607.0050365834
   ]
  },
  "max_3m": {
   "gradient_pct": 23.11252263202732,
   "start_distance_m": 584.0,
   "end_distance_m": 587.0,
   "midpoint_distance_m": 585.5,
   "start_elevation_m": 1045.4155777374135,
   "end_elevation_m": 1046.1089534163743,
   "start_xy": [
    2579417.9066676106,
    1147604.1298122273
   ],
   "end_xy": [
    2579418.761958904,
    1147607.0050365834
   ]
  }
 },
 "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": 0.005,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    458.0,
    463.0
   ]
  ],
  "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_2021_2579-1147_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2579-1148_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:03:36+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": [
   "2579-1147",
   "2579-1148"
  ],
  "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": "Ch\u00e2teau-d'Oex",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}