{
 "ocl_version": "0.1.0",
 "name": "Chemin des Vioz",
 "slug": "chemin-des-vioz",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.889947049256534,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 648.0,
   "end_distance_m": 650.0,
   "start_elevation_m": 1217.7274171228014,
   "end_elevation_m": 1218.2452160637865,
   "min_gradient_pct": -0.5694981503779672
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.8339324072352,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 647.0,
   "end_distance_m": 650.0,
   "start_elevation_m": 1217.5001980915695,
   "end_elevation_m": 1218.2452160637865,
   "min_gradient_pct": -0.48532294319253805
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.028884174936138,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 647.0,
   "end_distance_m": 652.0,
   "start_elevation_m": 1217.5001980915695,
   "end_elevation_m": 1218.7016423003163,
   "min_gradient_pct": -0.014268076674852637
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.309093810332797,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 694.0,
   "end_distance_m": 704.0,
   "start_elevation_m": 1226.0341336007602,
   "end_elevation_m": 1228.3650429817935,
   "min_gradient_pct": 0.440723146439268
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.62173989196981,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 688.0,
   "end_distance_m": 708.0,
   "start_elevation_m": 1224.7068011113258,
   "end_elevation_m": 1229.2311490897198,
   "min_gradient_pct": 0.9894815445898075
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.248778464117095,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 684.0,
   "end_distance_m": 709.0,
   "start_elevation_m": 1223.8924266292304,
   "end_elevation_m": 1229.4546212452597,
   "min_gradient_pct": 1.1329550105583621
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.939309209687508,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 521.0,
   "end_distance_m": 571.0,
   "start_elevation_m": 1195.684238761003,
   "end_elevation_m": 1205.6538933658467,
   "min_gradient_pct": 1.7554202934629757
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.020789865601273,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 468.0,
   "end_distance_m": 568.0,
   "start_elevation_m": 1186.0847379882289,
   "end_elevation_m": 1205.1055278538302,
   "min_gradient_pct": 2.1614260148621725
  }
 ],
 "shape": {
  "ascent_concentration": 0.42,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 301.0,
  "shape_class": "sustained"
 },
 "length_m": 713.8918632092557,
 "start_elevation_m": 1153.7088955332065,
 "end_elevation_m": 1230.3093865156197,
 "endpoint_gain_m": 76.60049098241325,
 "overall_gradient_pct": 10.72998516022589,
 "accumulated_ascent_m": 76.7051492514604,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.028884174936138,
   "start_distance_m": 647.0,
   "end_distance_m": 652.0,
   "midpoint_distance_m": 649.5,
   "start_elevation_m": 1217.5001980915695,
   "end_elevation_m": 1218.7016423003163,
   "start_xy": [
    2577743.6239089565,
    1132887.4157870458
   ],
   "end_xy": [
    2577740.0327234967,
    1132883.9476370974
   ]
  },
  "max_10m": {
   "gradient_pct": 23.309093810332797,
   "start_distance_m": 694.0,
   "end_distance_m": 704.0,
   "midpoint_distance_m": 699.0,
   "start_elevation_m": 1226.0341336007602,
   "end_elevation_m": 1228.3650429817935,
   "start_xy": [
    2577704.1073341663,
    1132896.4005128401
   ],
   "end_xy": [
    2577695.689435614,
    1132901.7911108746
   ]
  },
  "max_20m": {
   "gradient_pct": 22.62173989196981,
   "start_distance_m": 688.0,
   "end_distance_m": 708.0,
   "midpoint_distance_m": 698.0,
   "start_elevation_m": 1224.7068011113258,
   "end_elevation_m": 1229.2311490897198,
   "start_xy": [
    2577708.7523769736,
    1132892.602674334
   ],
   "end_xy": [
    2577692.19203292,
    1132903.732289485
   ]
  },
  "max_25m": {
   "gradient_pct": 22.248778464117095,
   "start_distance_m": 684.0,
   "end_distance_m": 709.0,
   "midpoint_distance_m": 696.5,
   "start_elevation_m": 1223.8924266292304,
   "end_elevation_m": 1229.4546212452597,
   "start_xy": [
    2577711.849072179,
    1132890.070781997
   ],
   "end_xy": [
    2577691.3176822467,
    1132904.2175841376
   ]
  },
  "max_50m": {
   "gradient_pct": 19.939309209687508,
   "start_distance_m": 521.0,
   "end_distance_m": 571.0,
   "midpoint_distance_m": 546.0,
   "start_elevation_m": 1195.684238761003,
   "end_elevation_m": 1205.6538933658467,
   "start_xy": [
    2577818.722238565,
    1132899.3030187655
   ],
   "end_xy": [
    2577799.3479590206,
    1132938.7137634591
   ]
  },
  "max_100m": {
   "gradient_pct": 19.020789865601273,
   "start_distance_m": 468.0,
   "end_distance_m": 568.0,
   "midpoint_distance_m": 518.0,
   "start_elevation_m": 1186.0847379882289,
   "end_elevation_m": 1205.1055278538302,
   "start_xy": [
    2577860.675423265,
    1132878.6039581478
   ],
   "end_xy": [
    2577802.1841680375,
    1132939.654934454
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.014268076674852637,
   "start_distance_m": 170.0,
   "end_distance_m": 175.0,
   "midpoint_distance_m": 172.5,
   "start_elevation_m": 1157.9658827275182,
   "end_elevation_m": 1157.9651693236844,
   "start_xy": [
    2578049.3410213096,
    1133063.1804063173
   ],
   "end_xy": [
    2578048.9368337635,
    1133058.2000356975
   ]
  },
  "min_10m": {
   "gradient_pct": 0.440723146439268,
   "start_distance_m": 121.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 126.0,
   "start_elevation_m": 1157.0646403547098,
   "end_elevation_m": 1157.1087126693537,
   "start_xy": [
    2578063.0993734323,
    1133109.2943761179
   ],
   "end_xy": [
    2578057.6715314016,
    1133100.9122210701
   ]
  },
  "min_20m": {
   "gradient_pct": 0.9894815445898075,
   "start_distance_m": 157.0,
   "end_distance_m": 177.0,
   "midpoint_distance_m": 167.0,
   "start_elevation_m": 1157.807916867232,
   "end_elevation_m": 1158.00581317615,
   "start_xy": [
    2578050.5572092105,
    1133076.1233923326
   ],
   "end_xy": [
    2578048.9796251506,
    1133056.2004935255
   ]
  },
  "min_25m": {
   "gradient_pct": 1.1329550105583621,
   "start_distance_m": 152.0,
   "end_distance_m": 177.0,
   "midpoint_distance_m": 164.5,
   "start_elevation_m": 1157.7225744235104,
   "end_elevation_m": 1158.00581317615,
   "start_xy": [
    2578051.024973788,
    1133081.101463877
   ],
   "end_xy": [
    2578048.9796251506,
    1133056.2004935255
   ]
  },
  "min_50m": {
   "gradient_pct": 1.7554202934629757,
   "start_distance_m": 125.0,
   "end_distance_m": 175.0,
   "midpoint_distance_m": 150.0,
   "start_elevation_m": 1157.087459176953,
   "end_elevation_m": 1157.9651693236844,
   "start_xy": [
    2578060.965147347,
    1133105.9273494342
   ],
   "end_xy": [
    2578048.9368337635,
    1133058.2000356975
   ]
  },
  "min_100m": {
   "gradient_pct": 2.1614260148621725,
   "start_distance_m": 118.0,
   "end_distance_m": 218.0,
   "midpoint_distance_m": 168.0,
   "start_elevation_m": 1156.9854089295684,
   "end_elevation_m": 1159.1468349444306,
   "start_xy": [
    2578063.8273961768,
    1133112.2040272423
   ],
   "end_xy": [
    2578043.5246789944,
    1133016.0520327406
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.889947049256534,
   "start_distance_m": 648.0,
   "end_distance_m": 650.0,
   "midpoint_distance_m": 649.0,
   "start_elevation_m": 1217.7274171228014,
   "end_elevation_m": 1218.2452160637865,
   "start_xy": [
    2577742.9195566345,
    1132886.7059364934
   ],
   "end_xy": [
    2577741.5108519914,
    1132885.2862353881
   ]
  },
  "max_3m": {
   "gradient_pct": 24.8339324072352,
   "start_distance_m": 647.0,
   "end_distance_m": 650.0,
   "midpoint_distance_m": 648.5,
   "start_elevation_m": 1217.5001980915695,
   "end_elevation_m": 1218.2452160637865,
   "start_xy": [
    2577743.6239089565,
    1132887.4157870458
   ],
   "end_xy": [
    2577741.5108519914,
    1132885.2862353881
   ]
  }
 },
 "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_2577-1132_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2577-1133_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2578-1132_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2578-1133_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:28:00+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": [
   "2577-1132",
   "2577-1133",
   "2578-1132",
   "2578-1133"
  ],
  "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": "Ormont-Dessus",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}