{
 "ocl_version": "0.1.0",
 "name": "Chemin des L\u00e9derreys",
 "slug": "chemin-des-lederreys",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.179167486359802,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 53.0,
   "end_distance_m": 55.0,
   "start_elevation_m": 1146.5940631648223,
   "end_elevation_m": 1147.1576465145495,
   "min_gradient_pct": -6.21485141643916
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.78157591622039,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 53.0,
   "end_distance_m": 56.0,
   "start_elevation_m": 1146.5940631648223,
   "end_elevation_m": 1147.3975104423089,
   "min_gradient_pct": -5.923348572969189
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.988461554288733,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 46.0,
   "end_distance_m": 51.0,
   "start_elevation_m": 1144.8242309161276,
   "end_elevation_m": 1146.123653993842,
   "min_gradient_pct": -5.6624805282990565
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.820362007191306,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 47.0,
   "end_distance_m": 57.0,
   "start_elevation_m": 1145.0823118178034,
   "end_elevation_m": 1147.6643480185226,
   "min_gradient_pct": -4.4149248868893665
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.44261375806923,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 42.0,
   "end_distance_m": 62.0,
   "start_elevation_m": 1144.0979913175959,
   "end_elevation_m": 1148.7865140692097,
   "min_gradient_pct": -1.7489508371659213
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.126622425044843,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 35.0,
   "end_distance_m": 60.0,
   "start_elevation_m": 1142.6361590328954,
   "end_elevation_m": 1148.4178146391566,
   "min_gradient_pct": -0.786373772688421
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.87230567334882,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 18.0,
   "end_distance_m": 68.0,
   "start_elevation_m": 1139.7046963522605,
   "end_elevation_m": 1149.140849188935,
   "min_gradient_pct": 1.248513770277441
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.288351173389401,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 358.0,
   "end_distance_m": 458.0,
   "start_elevation_m": 1167.4680202388054,
   "end_elevation_m": 1180.7563714121948,
   "min_gradient_pct": 3.0872437879882
  }
 ],
 "shape": {
  "ascent_concentration": 0.297,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 95.0,
  "shape_class": "sustained"
 },
 "length_m": 632.0047081039136,
 "start_elevation_m": 1138.4907205273291,
 "end_elevation_m": 1199.7015670156213,
 "endpoint_gain_m": 61.21084648829219,
 "overall_gradient_pct": 9.685188370183464,
 "accumulated_ascent_m": 61.98677677882688,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.988461554288733,
   "start_distance_m": 46.0,
   "end_distance_m": 51.0,
   "midpoint_distance_m": 48.5,
   "start_elevation_m": 1144.8242309161276,
   "end_elevation_m": 1146.123653993842,
   "start_xy": [
    2570532.7670571776,
    1124774.5076661718
   ],
   "end_xy": [
    2570537.5594611135,
    1124775.9334517499
   ]
  },
  "max_10m": {
   "gradient_pct": 25.820362007191306,
   "start_distance_m": 47.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 1145.0823118178034,
   "end_elevation_m": 1147.6643480185226,
   "start_xy": [
    2570533.725537965,
    1124774.7928232874
   ],
   "end_xy": [
    2570543.490130526,
    1124776.8399488817
   ]
  },
  "max_20m": {
   "gradient_pct": 23.44261375806923,
   "start_distance_m": 42.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 1144.0979913175959,
   "end_elevation_m": 1148.7865140692097,
   "start_xy": [
    2570529.173297765,
    1124772.9094211361
   ],
   "end_xy": [
    2570548.4335508733,
    1124777.5900123937
   ]
  },
  "max_25m": {
   "gradient_pct": 23.126622425044843,
   "start_distance_m": 35.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 47.5,
   "start_elevation_m": 1142.6361590328954,
   "end_elevation_m": 1148.4178146391566,
   "start_xy": [
    2570531.748622093,
    1124767.833916826
   ],
   "end_xy": [
    2570546.456182734,
    1124777.289986989
   ]
  },
  "max_50m": {
   "gradient_pct": 18.87230567334882,
   "start_distance_m": 18.0,
   "end_distance_m": 68.0,
   "midpoint_distance_m": 43.0,
   "start_elevation_m": 1139.7046963522605,
   "end_elevation_m": 1149.140849188935,
   "start_xy": [
    2570546.5421133973,
    1124759.5220785157
   ],
   "end_xy": [
    2570554.3749991558,
    1124778.4190329711
   ]
  },
  "max_100m": {
   "gradient_pct": 13.288351173389401,
   "start_distance_m": 358.0,
   "end_distance_m": 458.0,
   "midpoint_distance_m": 408.0,
   "start_elevation_m": 1167.4680202388054,
   "end_elevation_m": 1180.7563714121948,
   "start_xy": [
    2570525.4636362437,
    1124891.2809353864
   ],
   "end_xy": [
    2570430.353766627,
    1124908.3592868033
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.6624805282990565,
   "start_distance_m": 321.0,
   "end_distance_m": 326.0,
   "midpoint_distance_m": 323.5,
   "start_elevation_m": 1166.7302594151724,
   "end_elevation_m": 1166.4471353887575,
   "start_xy": [
    2570559.268689337,
    1124876.3427829805
   ],
   "end_xy": [
    2570554.537184684,
    1124877.959218477
   ]
  },
  "min_10m": {
   "gradient_pct": -4.4149248868893665,
   "start_distance_m": 316.0,
   "end_distance_m": 326.0,
   "midpoint_distance_m": 321.0,
   "start_elevation_m": 1166.8886278774464,
   "end_elevation_m": 1166.4471353887575,
   "start_xy": [
    2570564.0001939908,
    1124874.7263474842
   ],
   "end_xy": [
    2570554.537184684,
    1124877.959218477
   ]
  },
  "min_20m": {
   "gradient_pct": -1.7489508371659213,
   "start_distance_m": 316.0,
   "end_distance_m": 336.0,
   "midpoint_distance_m": 326.0,
   "start_elevation_m": 1166.8886278774464,
   "end_elevation_m": 1166.5388377100132,
   "start_xy": [
    2570564.0001939908,
    1124874.7263474842
   ],
   "end_xy": [
    2570545.316017676,
    1124881.816067072
   ]
  },
  "min_25m": {
   "gradient_pct": -0.786373772688421,
   "start_distance_m": 316.0,
   "end_distance_m": 341.0,
   "midpoint_distance_m": 328.5,
   "start_elevation_m": 1166.8886278774464,
   "end_elevation_m": 1166.6920344342743,
   "start_xy": [
    2570564.0001939908,
    1124874.7263474842
   ],
   "end_xy": [
    2570540.7310307766,
    1124883.8105331995
   ]
  },
  "min_50m": {
   "gradient_pct": 1.248513770277441,
   "start_distance_m": 301.0,
   "end_distance_m": 351.0,
   "midpoint_distance_m": 326.0,
   "start_elevation_m": 1166.366006883869,
   "end_elevation_m": 1166.9902637690077,
   "start_xy": [
    2570577.5668250583,
    1124868.4185476392
   ],
   "end_xy": [
    2570531.7273753206,
    1124888.1559437425
   ]
  },
  "min_100m": {
   "gradient_pct": 3.0872437879882,
   "start_distance_m": 71.0,
   "end_distance_m": 171.0,
   "midpoint_distance_m": 121.0,
   "start_elevation_m": 1149.239002043733,
   "end_elevation_m": 1152.3262458317213,
   "start_xy": [
    2570557.210690444,
    1124778.909337031
   ],
   "end_xy": [
    2570635.323091802,
    1124830.3220108096
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.179167486359802,
   "start_distance_m": 53.0,
   "end_distance_m": 55.0,
   "midpoint_distance_m": 54.0,
   "start_elevation_m": 1146.5940631648223,
   "end_elevation_m": 1147.1576465145495,
   "start_xy": [
    2570539.5353942486,
    1124776.239898072
   ],
   "end_xy": [
    2570541.5127623873,
    1124776.539923477
   ]
  },
  "max_3m": {
   "gradient_pct": 26.78157591622039,
   "start_distance_m": 53.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 54.5,
   "start_elevation_m": 1146.5940631648223,
   "end_elevation_m": 1147.3975104423089,
   "start_xy": [
    2570539.5353942486,
    1124776.239898072
   ],
   "end_xy": [
    2570542.5014464566,
    1124776.6899361794
   ]
  }
 },
 "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_2570-1124_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2570-1125_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T04:05:18+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-run7-260911",
  "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": [
   "2570-1124",
   "2570-1125"
  ],
  "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": "Gryon",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}