{
 "ocl_version": "0.1.0",
 "name": "Chemin des Pr\u00e9s",
 "slug": "chemin-des-pres",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.013590954677284,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 2330.0,
   "end_distance_m": 2332.0,
   "start_elevation_m": 778.3081746373578,
   "end_elevation_m": 778.9284464564513,
   "min_gradient_pct": -4.869033058133709
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.35307512458864,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 2330.0,
   "end_distance_m": 2333.0,
   "start_elevation_m": 778.3081746373578,
   "end_elevation_m": 779.1587668910954,
   "min_gradient_pct": -4.585437074319998
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.98662259806906,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2330.0,
   "end_distance_m": 2335.0,
   "start_elevation_m": 778.3081746373578,
   "end_elevation_m": 779.5575057672612,
   "min_gradient_pct": -3.3750875789769452
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.31822783575535,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2221.0,
   "end_distance_m": 2231.0,
   "start_elevation_m": 758.4836749118854,
   "end_elevation_m": 760.5154976954609,
   "min_gradient_pct": -2.7576273014062735
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.74639494666178,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2219.0,
   "end_distance_m": 2239.0,
   "start_elevation_m": 758.084642191479,
   "end_elevation_m": 762.0339211808114,
   "min_gradient_pct": 0.9688338357142356
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.7642081497861,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2219.0,
   "end_distance_m": 2244.0,
   "start_elevation_m": 758.084642191479,
   "end_elevation_m": 763.0256942289255,
   "min_gradient_pct": 1.7107343396373835
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.605035221746448,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2219.0,
   "end_distance_m": 2269.0,
   "start_elevation_m": 758.084642191479,
   "end_elevation_m": 767.8871598023522,
   "min_gradient_pct": 3.4810047916319036
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.462850641403065,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2215.0,
   "end_distance_m": 2315.0,
   "start_elevation_m": 757.349666061409,
   "end_elevation_m": 775.8125167028121,
   "min_gradient_pct": 4.064505156449741
  }
 ],
 "shape": {
  "ascent_concentration": 0.274,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 196.0,
  "shape_class": "sustained"
 },
 "length_m": 7080.718287603056,
 "start_elevation_m": 579.6471711406191,
 "end_elevation_m": 1169.6762279453053,
 "endpoint_gain_m": 590.0290568046862,
 "overall_gradient_pct": 8.332898342216367,
 "accumulated_ascent_m": 590.6203418187265,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.98662259806906,
   "start_distance_m": 2330.0,
   "end_distance_m": 2335.0,
   "midpoint_distance_m": 2332.5,
   "start_elevation_m": 778.3081746373578,
   "end_elevation_m": 779.5575057672612,
   "start_xy": [
    2537764.7464691065,
    1188828.3844978914
   ],
   "end_xy": [
    2537762.6252485006,
    1188832.8011176079
   ]
  },
  "max_10m": {
   "gradient_pct": 20.31822783575535,
   "start_distance_m": 2221.0,
   "end_distance_m": 2231.0,
   "midpoint_distance_m": 2226.0,
   "start_elevation_m": 758.4836749118854,
   "end_elevation_m": 760.5154976954609,
   "start_xy": [
    2537841.2378420653,
    1188753.1256817016
   ],
   "end_xy": [
    2537835.259313514,
    1188761.1417403566
   ]
  },
  "max_20m": {
   "gradient_pct": 19.74639494666178,
   "start_distance_m": 2219.0,
   "end_distance_m": 2239.0,
   "midpoint_distance_m": 2229.0,
   "start_elevation_m": 758.084642191479,
   "end_elevation_m": 762.0339211808114,
   "start_xy": [
    2537842.4335477757,
    1188751.5224699704
   ],
   "end_xy": [
    2537830.6300297882,
    1188767.6656375283
   ]
  },
  "max_25m": {
   "gradient_pct": 19.7642081497861,
   "start_distance_m": 2219.0,
   "end_distance_m": 2244.0,
   "midpoint_distance_m": 2231.5,
   "start_elevation_m": 758.084642191479,
   "end_elevation_m": 763.0256942289255,
   "start_xy": [
    2537842.4335477757,
    1188751.5224699704
   ],
   "end_xy": [
    2537827.7594385277,
    1188771.7594994965
   ]
  },
  "max_50m": {
   "gradient_pct": 19.605035221746448,
   "start_distance_m": 2219.0,
   "end_distance_m": 2269.0,
   "midpoint_distance_m": 2244.0,
   "start_elevation_m": 758.084642191479,
   "end_elevation_m": 767.8871598023522,
   "start_xy": [
    2537842.4335477757,
    1188751.5224699704
   ],
   "end_xy": [
    2537812.2235991806,
    1188791.3205880434
   ]
  },
  "max_100m": {
   "gradient_pct": 18.462850641403065,
   "start_distance_m": 2215.0,
   "end_distance_m": 2315.0,
   "midpoint_distance_m": 2265.0,
   "start_elevation_m": 757.349666061409,
   "end_elevation_m": 775.8125167028121,
   "start_xy": [
    2537844.824959196,
    1188748.3160465085
   ],
   "end_xy": [
    2537775.4138765032,
    1188818.1285165467
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.3750875789769452,
   "start_distance_m": 2447.0,
   "end_distance_m": 2452.0,
   "midpoint_distance_m": 2449.5,
   "start_elevation_m": 786.0246418904785,
   "end_elevation_m": 785.8558875115297,
   "start_xy": [
    2537852.7966682133,
    1188855.5184760338
   ],
   "end_xy": [
    2537856.4194011604,
    1188858.7316004492
   ]
  },
  "min_10m": {
   "gradient_pct": -2.7576273014062735,
   "start_distance_m": 2442.0,
   "end_distance_m": 2452.0,
   "midpoint_distance_m": 2447.0,
   "start_elevation_m": 786.1316502416703,
   "end_elevation_m": 785.8558875115297,
   "start_xy": [
    2537847.862394177,
    1188855.357305581
   ],
   "end_xy": [
    2537856.4194011604,
    1188858.7316004492
   ]
  },
  "min_20m": {
   "gradient_pct": 0.9688338357142356,
   "start_distance_m": 2433.0,
   "end_distance_m": 2453.0,
   "midpoint_distance_m": 2443.0,
   "start_elevation_m": 785.6975208423141,
   "end_elevation_m": 785.891287609457,
   "start_xy": [
    2537838.985975457,
    1188856.8436402373
   ],
   "end_xy": [
    2537855.91416776,
    1188859.1834692503
   ]
  },
  "min_25m": {
   "gradient_pct": 1.7107343396373835,
   "start_distance_m": 2428.0,
   "end_distance_m": 2453.0,
   "midpoint_distance_m": 2440.5,
   "start_elevation_m": 785.4636040245476,
   "end_elevation_m": 785.891287609457,
   "start_xy": [
    2537834.0497393236,
    1188857.638143522
   ],
   "end_xy": [
    2537855.91416776,
    1188859.1834692503
   ]
  },
  "min_50m": {
   "gradient_pct": 3.4810047916319036,
   "start_distance_m": 2403.0,
   "end_distance_m": 2453.0,
   "midpoint_distance_m": 2428.0,
   "start_elevation_m": 784.150785213641,
   "end_elevation_m": 785.891287609457,
   "start_xy": [
    2537809.2206469723,
    1188860.166227389
   ],
   "end_xy": [
    2537855.91416776,
    1188859.1834692503
   ]
  },
  "min_100m": {
   "gradient_pct": 4.064505156449741,
   "start_distance_m": 2352.0,
   "end_distance_m": 2452.0,
   "midpoint_distance_m": 2402.0,
   "start_elevation_m": 781.7913823550799,
   "end_elevation_m": 785.8558875115297,
   "start_xy": [
    2537759.7159305383,
    1188848.524485482
   ],
   "end_xy": [
    2537856.4194011604,
    1188858.7316004492
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.013590954677284,
   "start_distance_m": 2330.0,
   "end_distance_m": 2332.0,
   "midpoint_distance_m": 2331.0,
   "start_elevation_m": 778.3081746373578,
   "end_elevation_m": 778.9284464564513,
   "start_xy": [
    2537764.7464691065,
    1188828.3844978914
   ],
   "end_xy": [
    2537763.5295106173,
    1188829.9716374679
   ]
  },
  "max_3m": {
   "gradient_pct": 28.35307512458864,
   "start_distance_m": 2330.0,
   "end_distance_m": 2333.0,
   "midpoint_distance_m": 2331.5,
   "start_elevation_m": 778.3081746373578,
   "end_elevation_m": 779.1587668910954,
   "start_xy": [
    2537764.7464691065,
    1188828.3844978914
   ],
   "end_xy": [
    2537763.1249422655,
    1188830.8645468908
   ]
  }
 },
 "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"
  ]
 },
 "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_2536-1188_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2536-1189_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2537-1187_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2537-1188_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2537-1189_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2538-1188_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2538-1189_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:20:51+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": [
   "2536-1188",
   "2536-1189",
   "2537-1187",
   "2537-1188",
   "2537-1189",
   "2538-1188",
   "2538-1189"
  ],
  "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": "Fontaines-sur-Grandson",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}