{
 "ocl_version": "0.1.0",
 "name": "Chemin du Mont",
 "slug": "chemin-du-mont-3",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.73520475823443,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 430.0,
   "end_distance_m": 432.0,
   "start_elevation_m": 522.6627696019746,
   "end_elevation_m": 523.1774736971392,
   "min_gradient_pct": 2.881899011430278
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.948981074985948,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 129.0,
   "end_distance_m": 132.0,
   "start_elevation_m": 471.19536735472474,
   "end_elevation_m": 471.9438367869743,
   "min_gradient_pct": 3.5326828042267757
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.553180869160087,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 129.0,
   "end_distance_m": 134.0,
   "start_elevation_m": 471.19536735472474,
   "end_elevation_m": 472.42302639818274,
   "min_gradient_pct": 4.525879493461389
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.03336225029591,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 130.0,
   "end_distance_m": 140.0,
   "start_elevation_m": 471.4487714157602,
   "end_elevation_m": 473.85210764078977,
   "min_gradient_pct": 5.708271561060201
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.780446695760986,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 126.0,
   "end_distance_m": 146.0,
   "start_elevation_m": 470.5214607384018,
   "end_elevation_m": 475.277550077554,
   "min_gradient_pct": 7.835216269909893
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.54128280116879,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 120.0,
   "end_distance_m": 145.0,
   "start_elevation_m": 469.1593209758846,
   "end_elevation_m": 475.0446416761768,
   "min_gradient_pct": 8.391467299646138
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.620233811514595,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 104.0,
   "end_distance_m": 154.0,
   "start_elevation_m": 465.71122537743935,
   "end_elevation_m": 477.02134228319665,
   "min_gradient_pct": 9.148098055905393
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.66534919622126,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 114.0,
   "end_distance_m": 214.0,
   "start_elevation_m": 467.7974587897384,
   "end_elevation_m": 489.46280798595967,
   "min_gradient_pct": 11.858911985906389
  }
 ],
 "shape": {
  "ascent_concentration": 0.317,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 459.0,
  "shape_class": "sustained"
 },
 "length_m": 843.5394403634452,
 "start_elevation_m": 452.5159014233613,
 "end_elevation_m": 586.8327412133837,
 "endpoint_gain_m": 134.31683979002236,
 "overall_gradient_pct": 15.92300648469394,
 "accumulated_ascent_m": 134.31842524434063,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.553180869160087,
   "start_distance_m": 129.0,
   "end_distance_m": 134.0,
   "midpoint_distance_m": 131.5,
   "start_elevation_m": 471.19536735472474,
   "end_elevation_m": 472.42302639818274,
   "start_xy": [
    2547063.5175329186,
    1149060.546239984
   ],
   "end_xy": [
    2547066.4291602266,
    1149064.6092693573
   ]
  },
  "max_10m": {
   "gradient_pct": 24.03336225029591,
   "start_distance_m": 130.0,
   "end_distance_m": 140.0,
   "midpoint_distance_m": 135.0,
   "start_elevation_m": 471.4487714157602,
   "end_elevation_m": 473.85210764078977,
   "start_xy": [
    2547064.1247527674,
    1149061.340773801
   ],
   "end_xy": [
    2547069.8194145053,
    1149069.559640649
   ]
  },
  "max_20m": {
   "gradient_pct": 23.780446695760986,
   "start_distance_m": 126.0,
   "end_distance_m": 146.0,
   "midpoint_distance_m": 136.0,
   "start_elevation_m": 470.5214607384018,
   "end_elevation_m": 475.277550077554,
   "start_xy": [
    2547061.696845848,
    1149058.1618955578
   ],
   "end_xy": [
    2547073.3630549507,
    1149074.401212517
   ]
  },
  "max_25m": {
   "gradient_pct": 23.54128280116879,
   "start_distance_m": 120.0,
   "end_distance_m": 145.0,
   "midpoint_distance_m": 132.5,
   "start_elevation_m": 469.1593209758846,
   "end_elevation_m": 475.0446416761768,
   "start_xy": [
    2547058.055018094,
    1149053.39355344
   ],
   "end_xy": [
    2547072.7694694474,
    1149073.5964416612
   ]
  },
  "max_50m": {
   "gradient_pct": 22.620233811514595,
   "start_distance_m": 104.0,
   "end_distance_m": 154.0,
   "midpoint_distance_m": 129.0,
   "start_elevation_m": 465.71122537743935,
   "end_elevation_m": 477.02134228319665,
   "start_xy": [
    2547047.2295035273,
    1149041.667640511
   ],
   "end_xy": [
    2547076.256727309,
    1149081.8085103454
   ]
  },
  "max_100m": {
   "gradient_pct": 21.66534919622126,
   "start_distance_m": 114.0,
   "end_distance_m": 214.0,
   "midpoint_distance_m": 164.0,
   "start_elevation_m": 467.7974587897384,
   "end_elevation_m": 489.46280798595967,
   "start_xy": [
    2547054.1585233826,
    1149048.836985565
   ],
   "end_xy": [
    2547074.0592889115,
    1149141.5149786859
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 4.525879493461389,
   "start_distance_m": 50.0,
   "end_distance_m": 55.0,
   "midpoint_distance_m": 52.5,
   "start_elevation_m": 459.8167136221185,
   "end_elevation_m": 460.0430075967916,
   "start_xy": [
    2547018.1289698426,
    1149062.6902786163
   ],
   "end_xy": [
    2547021.079226827,
    1149060.8965320894
   ]
  },
  "min_10m": {
   "gradient_pct": 5.708271561060201,
   "start_distance_m": 50.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 55.0,
   "start_elevation_m": 459.8167136221185,
   "end_elevation_m": 460.38754077822455,
   "start_xy": [
    2547018.1289698426,
    1149062.6902786163
   ],
   "end_xy": [
    2547022.4503224837,
    1149056.0881962436
   ]
  },
  "min_20m": {
   "gradient_pct": 7.835216269909893,
   "start_distance_m": 50.0,
   "end_distance_m": 70.0,
   "midpoint_distance_m": 60.0,
   "start_elevation_m": 459.8167136221185,
   "end_elevation_m": 461.3837568761005,
   "start_xy": [
    2547018.1289698426,
    1149062.6902786163
   ],
   "end_xy": [
    2547025.1902403506,
    1149046.4708759973
   ]
  },
  "min_25m": {
   "gradient_pct": 8.391467299646138,
   "start_distance_m": 350.0,
   "end_distance_m": 375.0,
   "midpoint_distance_m": 362.5,
   "start_elevation_m": 512.7686654256643,
   "end_elevation_m": 514.8665322505758,
   "start_xy": [
    2547029.9486936913,
    1149268.1606299675
   ],
   "end_xy": [
    2547014.7908282964,
    1149288.0238967952
   ]
  },
  "min_50m": {
   "gradient_pct": 9.148098055905393,
   "start_distance_m": 337.0,
   "end_distance_m": 387.0,
   "midpoint_distance_m": 362.0,
   "start_elevation_m": 511.5058331720238,
   "end_elevation_m": 516.0798821999765,
   "start_xy": [
    2547038.0433497387,
    1149257.9882901998
   ],
   "end_xy": [
    2547008.471989656,
    1149298.1589518406
   ]
  },
  "min_100m": {
   "gradient_pct": 11.858911985906389,
   "start_distance_m": 313.0,
   "end_distance_m": 413.0,
   "midpoint_distance_m": 363.0,
   "start_elevation_m": 507.7927763541578,
   "end_elevation_m": 519.6516883400642,
   "start_xy": [
    2547050.33237263,
    1149237.4059970968
   ],
   "end_xy": [
    2547014.3255676604,
    1149317.9510942707
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.73520475823443,
   "start_distance_m": 430.0,
   "end_distance_m": 432.0,
   "midpoint_distance_m": 431.0,
   "start_elevation_m": 522.6627696019746,
   "end_elevation_m": 523.1774736971392,
   "start_xy": [
    2547030.495723404,
    1149321.81020018
   ],
   "end_xy": [
    2547032.4831345915,
    1149321.586153849
   ]
  },
  "max_3m": {
   "gradient_pct": 24.948981074985948,
   "start_distance_m": 129.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 130.5,
   "start_elevation_m": 471.19536735472474,
   "end_elevation_m": 471.9438367869743,
   "start_xy": [
    2547063.5175329186,
    1149060.546239984
   ],
   "end_xy": [
    2547065.299075467,
    1149062.9591455935
   ]
  }
 },
 "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_2546-1149_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2547-1149_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-15T21:35:29+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-260915-dogleg-all",
  "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": [
   "2546-1149",
   "2547-1149"
  ],
  "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": "Bourg-en-Lavaux",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}