{
 "ocl_version": "0.1.0",
 "name": "Chemin de Champ Pevy",
 "slug": "chemin-de-champ-pevy",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.844510976554602,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 329.0,
   "end_distance_m": 331.0,
   "start_elevation_m": 664.6921524323334,
   "end_elevation_m": 665.2090426518645,
   "min_gradient_pct": 0.17583315009233047
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.995757169308337,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 329.0,
   "end_distance_m": 332.0,
   "start_elevation_m": 664.6921524323334,
   "end_elevation_m": 665.4720251474126,
   "min_gradient_pct": 0.5216484209161839
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.42315292951116,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 329.0,
   "end_distance_m": 334.0,
   "start_elevation_m": 664.6921524323334,
   "end_elevation_m": 665.963310078809,
   "min_gradient_pct": 0.9476826913169134
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.116718684233547,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 325.0,
   "end_distance_m": 335.0,
   "start_elevation_m": 663.789984016028,
   "end_elevation_m": 666.2016558844514,
   "min_gradient_pct": 1.3456077130911126
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.673128147888747,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 313.0,
   "end_distance_m": 333.0,
   "start_elevation_m": 660.9908126984285,
   "end_elevation_m": 665.7254383280062,
   "min_gradient_pct": 1.5940910210093762
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.590139938170523,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 310.0,
   "end_distance_m": 335.0,
   "start_elevation_m": 660.3041208999088,
   "end_elevation_m": 666.2016558844514,
   "min_gradient_pct": 1.637555527610857
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.91948431634546,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 302.0,
   "end_distance_m": 352.0,
   "start_elevation_m": 658.9756753672801,
   "end_elevation_m": 668.4354175254529,
   "min_gradient_pct": 2.236462448118118
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.017313933522928,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 244.0,
   "end_distance_m": 344.0,
   "start_elevation_m": 653.6387186437887,
   "end_elevation_m": 667.6560325773116,
   "min_gradient_pct": 4.459981452458919
  }
 ],
 "shape": {
  "ascent_concentration": 0.34,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 79.0,
  "shape_class": "sustained"
 },
 "length_m": 353.67568734614923,
 "start_elevation_m": 631.059696724606,
 "end_elevation_m": 668.5486941035109,
 "endpoint_gain_m": 37.488997378904855,
 "overall_gradient_pct": 10.599823148774615,
 "accumulated_ascent_m": 37.49287817288405,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.42315292951116,
   "start_distance_m": 329.0,
   "end_distance_m": 334.0,
   "midpoint_distance_m": 331.5,
   "start_elevation_m": 664.6921524323334,
   "end_elevation_m": 665.963310078809,
   "start_xy": [
    2542463.8119432717,
    1152449.6148345466
   ],
   "end_xy": [
    2542468.272954654,
    1152451.8730128964
   ]
  },
  "max_10m": {
   "gradient_pct": 24.116718684233547,
   "start_distance_m": 325.0,
   "end_distance_m": 335.0,
   "midpoint_distance_m": 330.0,
   "start_elevation_m": 663.789984016028,
   "end_elevation_m": 666.2016558844514,
   "start_xy": [
    2542460.0633721994,
    1152448.4001860516
   ],
   "end_xy": [
    2542469.1649689265,
    1152452.3250201286
   ]
  },
  "max_20m": {
   "gradient_pct": 23.673128147888747,
   "start_distance_m": 313.0,
   "end_distance_m": 333.0,
   "midpoint_distance_m": 323.0,
   "start_elevation_m": 660.9908126984285,
   "end_elevation_m": 665.7254383280062,
   "start_xy": [
    2542448.0772041674,
    1152447.8241861726
   ],
   "end_xy": [
    2542467.380438605,
    1152451.4219975485
   ]
  },
  "max_25m": {
   "gradient_pct": 23.590139938170523,
   "start_distance_m": 310.0,
   "end_distance_m": 335.0,
   "midpoint_distance_m": 322.5,
   "start_elevation_m": 660.3041208999088,
   "end_elevation_m": 666.2016558844514,
   "start_xy": [
    2542445.080661498,
    1152447.6801999519
   ],
   "end_xy": [
    2542469.1649689265,
    1152452.3250201286
   ]
  },
  "max_50m": {
   "gradient_pct": 18.91948431634546,
   "start_distance_m": 302.0,
   "end_distance_m": 352.0,
   "midpoint_distance_m": 327.0,
   "start_elevation_m": 658.9756753672801,
   "end_elevation_m": 668.4354175254529,
   "start_xy": [
    2542437.2557840156,
    1152449.1254403917
   ],
   "end_xy": [
    2542468.263530754,
    1152467.1853425012
   ]
  },
  "max_100m": {
   "gradient_pct": 14.017313933522928,
   "start_distance_m": 244.0,
   "end_distance_m": 344.0,
   "midpoint_distance_m": 294.0,
   "start_elevation_m": 653.6387186437887,
   "end_elevation_m": 667.6560325773116,
   "start_xy": [
    2542393.5595643115,
    1152431.1028483869
   ],
   "end_xy": [
    2542472.2320880718,
    1152460.3344748162
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.9476826913169134,
   "start_distance_m": 186.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 188.5,
   "start_elevation_m": 649.9774833582228,
   "end_elevation_m": 650.0248674927886,
   "start_xy": [
    2542341.69259455,
    1152406.5112375466
   ],
   "end_xy": [
    2542346.4015404177,
    1152408.1922567273
   ]
  },
  "min_10m": {
   "gradient_pct": 1.3456077130911126,
   "start_distance_m": 181.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 186.0,
   "start_elevation_m": 649.8903067214795,
   "end_elevation_m": 650.0248674927886,
   "start_xy": [
    2542336.983636498,
    1152404.8302525086
   ],
   "end_xy": [
    2542346.4015404177,
    1152408.1922567273
   ]
  },
  "min_20m": {
   "gradient_pct": 1.5940910210093762,
   "start_distance_m": 175.0,
   "end_distance_m": 195.0,
   "midpoint_distance_m": 185.0,
   "start_elevation_m": 649.7895528914596,
   "end_elevation_m": 650.1083710956615,
   "start_xy": [
    2542331.3335014055,
    1152402.8113506627
   ],
   "end_xy": [
    2542350.168350243,
    1152409.538042815
   ]
  },
  "min_25m": {
   "gradient_pct": 1.637555527610857,
   "start_distance_m": 175.0,
   "end_distance_m": 200.0,
   "midpoint_distance_m": 187.5,
   "start_elevation_m": 649.7895528914596,
   "end_elevation_m": 650.1989417733623,
   "start_xy": [
    2542331.3335014055,
    1152402.8113506627
   ],
   "end_xy": [
    2542354.8775427653,
    1152411.2183654748
   ]
  },
  "min_50m": {
   "gradient_pct": 2.236462448118118,
   "start_distance_m": 160.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 185.0,
   "start_elevation_m": 649.3618495986091,
   "end_elevation_m": 650.4800808226681,
   "start_xy": [
    2542317.5128016053,
    1152397.063041267
   ],
   "end_xy": [
    2542364.3030581055,
    1152414.558893317
   ]
  },
  "min_100m": {
   "gradient_pct": 4.459981452458919,
   "start_distance_m": 126.0,
   "end_distance_m": 226.0,
   "midpoint_distance_m": 176.0,
   "start_elevation_m": 647.1905391591146,
   "end_elevation_m": 651.6505206115735,
   "start_xy": [
    2542292.2588856607,
    1152374.5489761394
   ],
   "end_xy": [
    2542379.1772138686,
    1152420.413189471
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.844510976554602,
   "start_distance_m": 329.0,
   "end_distance_m": 331.0,
   "midpoint_distance_m": 330.0,
   "start_elevation_m": 664.6921524323334,
   "end_elevation_m": 665.2090426518645,
   "start_xy": [
    2542463.8119432717,
    1152449.6148345466
   ],
   "end_xy": [
    2542465.596305135,
    1152450.5181904945
   ]
  },
  "max_3m": {
   "gradient_pct": 25.995757169308337,
   "start_distance_m": 329.0,
   "end_distance_m": 332.0,
   "midpoint_distance_m": 330.5,
   "start_elevation_m": 664.6921524323334,
   "end_elevation_m": 665.4720251474126,
   "start_xy": [
    2542463.8119432717,
    1152449.6148345466
   ],
   "end_xy": [
    2542466.488319407,
    1152450.9701977267
   ]
  }
 },
 "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_2542-1152_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-15T21:30:22+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": [
   "2542-1152"
  ],
  "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": "Belmont",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}