{
 "ocl_version": "0.1.0",
 "name": "Chemin des Torins",
 "slug": "chemin-des-torins",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 18.966126123052618,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1612.0,
   "end_distance_m": 1614.0,
   "start_elevation_m": 1370.353382572333,
   "end_elevation_m": 1370.732705094794,
   "min_gradient_pct": -3.6958154143917454
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 18.612039964841642,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1960.0,
   "end_distance_m": 1963.0,
   "start_elevation_m": 1416.8351817451705,
   "end_elevation_m": 1417.3935429441158,
   "min_gradient_pct": -3.4832791466821313
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 18.17524135904023,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1959.0,
   "end_distance_m": 1964.0,
   "start_elevation_m": 1416.6646279613283,
   "end_elevation_m": 1417.5733900292803,
   "min_gradient_pct": -3.414479303828557
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 17.774518166067992,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1955.0,
   "end_distance_m": 1965.0,
   "start_elevation_m": 1415.9605642939296,
   "end_elevation_m": 1417.7380161105364,
   "min_gradient_pct": -3.132803009239069
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 17.2211492504141,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1953.0,
   "end_distance_m": 1973.0,
   "start_elevation_m": 1415.625502011866,
   "end_elevation_m": 1419.0697318619489,
   "min_gradient_pct": -2.438791234619657
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.046531633521226,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1946.0,
   "end_distance_m": 1971.0,
   "start_elevation_m": 1414.4892096354174,
   "end_elevation_m": 1418.7508425437977,
   "min_gradient_pct": -2.3675163839852758
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.500025201285553,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1951.0,
   "end_distance_m": 2001.0,
   "start_elevation_m": 1415.3223226464488,
   "end_elevation_m": 1423.5723352470916,
   "min_gradient_pct": -1.5674794307801676
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.828903707328891,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1915.0,
   "end_distance_m": 2015.0,
   "start_elevation_m": 1409.9358650334857,
   "end_elevation_m": 1425.7647687408146,
   "min_gradient_pct": -0.15706606671506051
  }
 ],
 "shape": {
  "ascent_concentration": 0.306,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 358.0,
  "shape_class": "sustained"
 },
 "length_m": 2775.8043235323917,
 "start_elevation_m": 1206.2923420507984,
 "end_elevation_m": 1493.4835308691438,
 "endpoint_gain_m": 287.1911888183454,
 "overall_gradient_pct": 10.346233211888507,
 "accumulated_ascent_m": 288.2753878053443,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 18.17524135904023,
   "start_distance_m": 1959.0,
   "end_distance_m": 1964.0,
   "midpoint_distance_m": 1961.5,
   "start_elevation_m": 1416.6646279613283,
   "end_elevation_m": 1417.5733900292803,
   "start_xy": [
    2577904.476647701,
    1134463.1775676035
   ],
   "end_xy": [
    2577900.3805829315,
    1134466.045014796
   ]
  },
  "max_10m": {
   "gradient_pct": 17.774518166067992,
   "start_distance_m": 1955.0,
   "end_distance_m": 1965.0,
   "midpoint_distance_m": 1960.0,
   "start_elevation_m": 1415.9605642939296,
   "end_elevation_m": 1417.7380161105364,
   "start_xy": [
    2577907.7534995168,
    1134460.8836098493
   ],
   "end_xy": [
    2577899.5613699774,
    1134466.6185042348
   ]
  },
  "max_20m": {
   "gradient_pct": 17.2211492504141,
   "start_distance_m": 1953.0,
   "end_distance_m": 1973.0,
   "midpoint_distance_m": 1963.0,
   "start_elevation_m": 1415.625502011866,
   "end_elevation_m": 1419.0697318619489,
   "start_xy": [
    2577909.391925425,
    1134459.7366309722
   ],
   "end_xy": [
    2577892.5794577203,
    1134470.5130578782
   ]
  },
  "max_25m": {
   "gradient_pct": 17.046531633521226,
   "start_distance_m": 1946.0,
   "end_distance_m": 1971.0,
   "midpoint_distance_m": 1958.5,
   "start_elevation_m": 1414.4892096354174,
   "end_elevation_m": 1418.7508425437977,
   "start_xy": [
    2577915.126416102,
    1134455.7222049024
   ],
   "end_xy": [
    2577894.3386943387,
    1134469.561697526
   ]
  },
  "max_50m": {
   "gradient_pct": 16.500025201285553,
   "start_distance_m": 1951.0,
   "end_distance_m": 2001.0,
   "midpoint_distance_m": 1976.0,
   "start_elevation_m": 1415.3223226464488,
   "end_elevation_m": 1423.5723352470916,
   "start_xy": [
    2577911.0303513324,
    1134458.5896520952
   ],
   "end_xy": [
    2577867.840510508,
    1134483.620161648
   ]
  },
  "max_100m": {
   "gradient_pct": 15.828903707328891,
   "start_distance_m": 1915.0,
   "end_distance_m": 2015.0,
   "midpoint_distance_m": 1965.0,
   "start_elevation_m": 1409.9358650334857,
   "end_elevation_m": 1425.7647687408146,
   "start_xy": [
    2577941.2598507702,
    1134439.0519893642
   ],
   "end_xy": [
    2577855.289732093,
    1134489.8232222782
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.414479303828557,
   "start_distance_m": 2074.0,
   "end_distance_m": 2079.0,
   "midpoint_distance_m": 2076.5,
   "start_elevation_m": 1428.8010496353995,
   "end_elevation_m": 1428.630325670208,
   "start_xy": [
    2577807.532012285,
    1134524.074892558
   ],
   "end_xy": [
    2577803.1702318,
    1134526.519247483
   ]
  },
  "min_10m": {
   "gradient_pct": -3.132803009239069,
   "start_distance_m": 2073.0,
   "end_distance_m": 2083.0,
   "midpoint_distance_m": 2078.0,
   "start_elevation_m": 1428.8303158833592,
   "end_elevation_m": 1428.5170355824353,
   "start_xy": [
    2577808.390095582,
    1134523.5618855054
   ],
   "end_xy": [
    2577799.6808074117,
    1134528.474731423
   ]
  },
  "min_20m": {
   "gradient_pct": -2.438791234619657,
   "start_distance_m": 2072.0,
   "end_distance_m": 2092.0,
   "midpoint_distance_m": 2082.0,
   "start_elevation_m": 1428.8563353754262,
   "end_elevation_m": 1428.3685771285022,
   "start_xy": [
    2577809.2387972116,
    1134523.033013551
   ],
   "end_xy": [
    2577792.6988749313,
    1134534.085432834
   ]
  },
  "min_25m": {
   "gradient_pct": -2.3675163839852758,
   "start_distance_m": 2072.0,
   "end_distance_m": 2097.0,
   "midpoint_distance_m": 2084.5,
   "start_elevation_m": 1428.8563353754262,
   "end_elevation_m": 1428.2644562794299,
   "start_xy": [
    2577809.2387972116,
    1134523.033013551
   ],
   "end_xy": [
    2577789.0623376197,
    1134537.512669333
   ]
  },
  "min_50m": {
   "gradient_pct": -1.5674794307801676,
   "start_distance_m": 2062.0,
   "end_distance_m": 2112.0,
   "midpoint_distance_m": 2087.0,
   "start_elevation_m": 1428.906681005456,
   "end_elevation_m": 1428.122941290066,
   "start_xy": [
    2577817.7258135057,
    1134517.7442940057
   ],
   "end_xy": [
    2577779.1932666665,
    1134548.778149104
   ]
  },
  "min_100m": {
   "gradient_pct": -0.15706606671506051,
   "start_distance_m": 2045.0,
   "end_distance_m": 2145.0,
   "midpoint_distance_m": 2095.0,
   "start_elevation_m": 1428.7247084207554,
   "end_elevation_m": 1428.5676423540403,
   "start_xy": [
    2577831.326552441,
    1134507.5475829365
   ],
   "end_xy": [
    2577759.8131424654,
    1134575.4535878657
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 18.966126123052618,
   "start_distance_m": 1612.0,
   "end_distance_m": 1614.0,
   "midpoint_distance_m": 1613.0,
   "start_elevation_m": 1370.353382572333,
   "end_elevation_m": 1370.732705094794,
   "start_xy": [
    2577893.962094363,
    1134338.389690035
   ],
   "end_xy": [
    2577895.9574606987,
    1134338.5257532015
   ]
  },
  "max_3m": {
   "gradient_pct": 18.612039964841642,
   "start_distance_m": 1960.0,
   "end_distance_m": 1963.0,
   "midpoint_distance_m": 1961.5,
   "start_elevation_m": 1416.8351817451705,
   "end_elevation_m": 1417.3935429441158,
   "start_xy": [
    2577903.657434747,
    1134463.751057042
   ],
   "end_xy": [
    2577901.1997958855,
    1134465.4715253576
   ]
  }
 },
 "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_2577-1133_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2577-1134_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2578-1133_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2578-1134_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:08:27+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": [
   "2577-1133",
   "2577-1134",
   "2578-1133",
   "2578-1134"
  ],
  "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)"
 }
}