{
 "ocl_version": "0.1.0",
 "name": "Chemin de Plan Pra",
 "slug": "chemin-de-plan-pra-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.26733685662202,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2353.0,
   "end_distance_m": 2355.0,
   "start_elevation_m": 1532.3699330146378,
   "end_elevation_m": 1533.0952797517702,
   "min_gradient_pct": -76.06920699136026,
   "suppressed_max_gradient_pct": 75.37000515277441,
   "suppressed_location_m": [
    1235.0,
    1237.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.44717923814157,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2352.0,
   "end_distance_m": 2355.0,
   "start_elevation_m": 1532.181864374626,
   "end_elevation_m": 1533.0952797517702,
   "min_gradient_pct": -75.38450846271492,
   "suppressed_max_gradient_pct": 73.13293150809083,
   "suppressed_location_m": [
    1234.0,
    1237.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.498089238833018,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 32.0,
   "end_distance_m": 37.0,
   "start_elevation_m": 1279.1798325958655,
   "end_elevation_m": 1280.6047370578071,
   "min_gradient_pct": -56.077884376904876,
   "suppressed_max_gradient_pct": 70.78306375251486,
   "suppressed_location_m": [
    1235.0,
    1240.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.13823663668518,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 31.0,
   "end_distance_m": 41.0,
   "start_elevation_m": 1278.9297762785855,
   "end_elevation_m": 1281.443599942254,
   "min_gradient_pct": -49.411581615529485,
   "suppressed_max_gradient_pct": 66.57890741934352,
   "suppressed_location_m": [
    1230.0,
    1240.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.60289919586762,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 17.0,
   "end_distance_m": 37.0,
   "start_elevation_m": 1275.8841572186336,
   "end_elevation_m": 1280.6047370578071,
   "min_gradient_pct": -27.281111189271314,
   "suppressed_max_gradient_pct": 43.36555698523284,
   "suppressed_location_m": [
    1226.0,
    1246.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.282494684752237,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 600.0,
   "end_distance_m": 625.0,
   "start_elevation_m": 1356.758750327043,
   "end_elevation_m": 1362.579373998231,
   "min_gradient_pct": -21.904706167632867,
   "suppressed_max_gradient_pct": 35.88064353703703,
   "suppressed_location_m": [
    1226.0,
    1251.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.18815811498598,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 594.0,
   "end_distance_m": 644.0,
   "start_elevation_m": 1355.455354813499,
   "end_elevation_m": 1366.549433870992,
   "min_gradient_pct": -9.05450184277106
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.057320782752868,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 538.0,
   "end_distance_m": 638.0,
   "start_elevation_m": 1344.2010233559874,
   "end_elevation_m": 1365.2583441387403,
   "min_gradient_pct": -0.6656065772410784
  }
 ],
 "shape": {
  "ascent_concentration": 0.322,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 282.0,
  "shape_class": "sustained"
 },
 "length_m": 2521.3999999999764,
 "start_elevation_m": 1272.7367314209173,
 "end_elevation_m": 1550.1723623140151,
 "endpoint_gain_m": 277.4356308930978,
 "overall_gradient_pct": 11.003237522531151,
 "accumulated_ascent_m": 284.0522964921847,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.498089238833018,
   "start_distance_m": 32.0,
   "end_distance_m": 37.0,
   "midpoint_distance_m": 34.5,
   "start_elevation_m": 1279.1798325958655,
   "end_elevation_m": 1280.6047370578071,
   "start_xy": [
    2582515.6219467293,
    1104880.4669453555
   ],
   "end_xy": [
    2582519.1101647583,
    1104884.0491692433
   ]
  },
  "max_10m": {
   "gradient_pct": 25.13823663668518,
   "start_distance_m": 31.0,
   "end_distance_m": 41.0,
   "midpoint_distance_m": 36.0,
   "start_elevation_m": 1278.9297762785855,
   "end_elevation_m": 1281.443599942254,
   "start_xy": [
    2582514.9238978643,
    1104879.75089523
   ],
   "end_xy": [
    2582521.9008475235,
    1104886.9148433728
   ]
  },
  "max_20m": {
   "gradient_pct": 23.60289919586762,
   "start_distance_m": 17.0,
   "end_distance_m": 37.0,
   "midpoint_distance_m": 27.0,
   "start_elevation_m": 1275.8841572186336,
   "end_elevation_m": 1280.6047370578071,
   "start_xy": [
    2582505.1557655875,
    1104869.7217592066
   ],
   "end_xy": [
    2582519.1101647583,
    1104884.0491692433
   ]
  },
  "max_25m": {
   "gradient_pct": 23.282494684752237,
   "start_distance_m": 600.0,
   "end_distance_m": 625.0,
   "midpoint_distance_m": 612.5,
   "start_elevation_m": 1356.758750327043,
   "end_elevation_m": 1362.579373998231,
   "start_xy": [
    2582792.816750796,
    1104704.632052861
   ],
   "end_xy": [
    2582799.930862619,
    1104721.2963179436
   ]
  },
  "max_50m": {
   "gradient_pct": 22.18815811498598,
   "start_distance_m": 594.0,
   "end_distance_m": 644.0,
   "midpoint_distance_m": 619.0,
   "start_elevation_m": 1355.455354813499,
   "end_elevation_m": 1366.549433870992,
   "start_xy": [
    2582787.661674612,
    1104701.5620074521
   ],
   "end_xy": [
    2582790.4141586884,
    1104737.7410714834
   ]
  },
  "max_100m": {
   "gradient_pct": 21.057320782752868,
   "start_distance_m": 538.0,
   "end_distance_m": 638.0,
   "midpoint_distance_m": 588.0,
   "start_elevation_m": 1344.2010233559874,
   "end_elevation_m": 1365.2583441387403,
   "start_xy": [
    2582742.7525683613,
    1104702.319784051
   ],
   "end_xy": [
    2582793.4256723872,
    1104732.5516474254
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -56.077884376904876,
   "start_distance_m": 1192.0,
   "end_distance_m": 1197.0,
   "midpoint_distance_m": 1194.5,
   "start_elevation_m": 1416.2500475305358,
   "end_elevation_m": 1413.4461533116905,
   "start_xy": [
    2582864.0065670055,
    1104951.5602769328
   ],
   "end_xy": [
    2582863.6257408676,
    1104956.5457247354
   ]
  },
  "min_10m": {
   "gradient_pct": -49.411581615529485,
   "start_distance_m": 1193.0,
   "end_distance_m": 1203.0,
   "midpoint_distance_m": 1198.0,
   "start_elevation_m": 1416.2932645709857,
   "end_elevation_m": 1411.3521064094327,
   "start_xy": [
    2582863.924744777,
    1104952.5569161691
   ],
   "end_xy": [
    2582863.1769879614,
    1104962.5289191103
   ]
  },
  "min_20m": {
   "gradient_pct": -27.281111189271314,
   "start_distance_m": 1192.0,
   "end_distance_m": 1212.0,
   "midpoint_distance_m": 1202.0,
   "start_elevation_m": 1416.2500475305358,
   "end_elevation_m": 1410.7938252926815,
   "start_xy": [
    2582864.0065670055,
    1104951.5602769328
   ],
   "end_xy": [
    2582862.50473699,
    1104971.5037762765
   ]
  },
  "min_25m": {
   "gradient_pct": -21.904706167632867,
   "start_distance_m": 1193.0,
   "end_distance_m": 1218.0,
   "midpoint_distance_m": 1205.5,
   "start_elevation_m": 1416.2932645709857,
   "end_elevation_m": 1410.8170880290775,
   "start_xy": [
    2582863.924744777,
    1104952.5569161691
   ],
   "end_xy": [
    2582862.042808576,
    1104977.4859577003
   ]
  },
  "min_50m": {
   "gradient_pct": -9.05450184277106,
   "start_distance_m": 1176.0,
   "end_distance_m": 1226.0,
   "midpoint_distance_m": 1201.0,
   "start_elevation_m": 1415.3679137920722,
   "end_elevation_m": 1410.8406628706866,
   "start_xy": [
    2582866.006988826,
    1104935.7037214509
   ],
   "end_xy": [
    2582862.0280923476,
    1104985.4810022018
   ]
  },
  "min_100m": {
   "gradient_pct": -0.6656065772410784,
   "start_distance_m": 1126.0,
   "end_distance_m": 1226.0,
   "midpoint_distance_m": 1176.0,
   "start_elevation_m": 1411.5062694479277,
   "end_elevation_m": 1410.8406628706866,
   "start_xy": [
    2582889.8385933624,
    1104892.5771927699
   ],
   "end_xy": [
    2582862.0280923476,
    1104985.4810022018
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.26733685662202,
   "start_distance_m": 2353.0,
   "end_distance_m": 2355.0,
   "midpoint_distance_m": 2354.0,
   "start_elevation_m": 1532.3699330146378,
   "end_elevation_m": 1533.0952797517702,
   "start_xy": [
    2583249.6440681163,
    1105627.2027270882
   ],
   "end_xy": [
    2583251.146367855,
    1105625.8824636694
   ]
  },
  "max_3m": {
   "gradient_pct": 30.44717923814157,
   "start_distance_m": 2352.0,
   "end_distance_m": 2355.0,
   "midpoint_distance_m": 2353.5,
   "start_elevation_m": 1532.181864374626,
   "end_elevation_m": 1533.0952797517702,
   "start_xy": [
    2583248.8924962473,
    1105627.8623782936
   ],
   "end_xy": [
    2583251.146367855,
    1105625.8824636694
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.013,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    481.0,
    486.0
   ],
   [
    1192.0,
    1203.0
   ],
   [
    1228.0,
    1243.0
   ]
  ],
  "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_2024_2582-1104_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2582-1105_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2583-1104_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2583-1105_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T06:44:25+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-extent-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": [
   "2582-1104",
   "2582-1105",
   "2583-1104",
   "2583-1105"
  ],
  "route_cut_m": 2521.4,
  "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": "Val de Bagnes",
  "county": "Valais/Wallis",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}