{
 "ocl_version": "0.1.0",
 "name": "Route de Sigeroula",
 "slug": "route-de-sigeroula",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 54.65954174957233,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 642.0,
   "end_distance_m": 644.0,
   "start_elevation_m": 1406.4370905783705,
   "end_elevation_m": 1407.530281413362,
   "min_gradient_pct": -2.911591633903754,
   "suppressed_max_gradient_pct": 82.92873840636048,
   "suppressed_location_m": [
    711.0,
    713.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 49.98925695152442,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 641.0,
   "end_distance_m": 644.0,
   "start_elevation_m": 1406.0306037048163,
   "end_elevation_m": 1407.530281413362,
   "min_gradient_pct": -0.6780541438274668,
   "suppressed_max_gradient_pct": 71.73463306805843,
   "suppressed_location_m": [
    711.0,
    714.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 44.189472002676666,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 696.0,
   "end_distance_m": 701.0,
   "start_elevation_m": 1420.7760796862967,
   "end_elevation_m": 1422.9855532864306,
   "min_gradient_pct": 4.3497415330057265,
   "suppressed_max_gradient_pct": 57.8127109844354,
   "suppressed_location_m": [
    709.0,
    714.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 36.78274223240578,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 691.0,
   "end_distance_m": 701.0,
   "start_elevation_m": 1419.30727906319,
   "end_elevation_m": 1422.9855532864306,
   "min_gradient_pct": 6.234331083398956,
   "suppressed_max_gradient_pct": 42.25039993158589,
   "suppressed_location_m": [
    674.0,
    684.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 32.97183706970827,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 625.0,
   "end_distance_m": 645.0,
   "start_elevation_m": 1401.294629539613,
   "end_elevation_m": 1407.8889969535546,
   "min_gradient_pct": 6.383786910192839,
   "suppressed_max_gradient_pct": 36.421789500545856,
   "suppressed_location_m": [
    680.0,
    700.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 32.23933206950642,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 620.0,
   "end_distance_m": 645.0,
   "start_elevation_m": 1399.829163936178,
   "end_elevation_m": 1407.8889969535546,
   "min_gradient_pct": 6.462713495247044,
   "suppressed_max_gradient_pct": 37.027198384021176,
   "suppressed_location_m": [
    676.0,
    701.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 29.38826342700486,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 595.0,
   "end_distance_m": 645.0,
   "start_elevation_m": 1393.1948652400522,
   "end_elevation_m": 1407.8889969535546,
   "min_gradient_pct": 7.10130322301211,
   "suppressed_max_gradient_pct": 31.443715867387255,
   "suppressed_location_m": [
    675.0,
    725.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 25.497534006609385,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 545.0,
   "end_distance_m": 645.0,
   "start_elevation_m": 1382.3914629469452,
   "end_elevation_m": 1407.8889969535546,
   "min_gradient_pct": 7.807746636506636,
   "suppressed_max_gradient_pct": 28.82966150019047,
   "suppressed_location_m": [
    614.0,
    714.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.43,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 291.0,
  "shape_class": "sustained"
 },
 "length_m": 782.6024075883876,
 "start_elevation_m": 1323.3651773876934,
 "end_elevation_m": 1440.5050060291824,
 "endpoint_gain_m": 117.13982864148898,
 "overall_gradient_pct": 14.96798725708739,
 "accumulated_ascent_m": 117.423232216614,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 44.189472002676666,
   "start_distance_m": 696.0,
   "end_distance_m": 701.0,
   "midpoint_distance_m": 698.5,
   "start_elevation_m": 1420.7760796862967,
   "end_elevation_m": 1422.9855532864306,
   "start_xy": [
    2606930.4040435785,
    1122193.7660299488
   ],
   "end_xy": [
    2606934.647235935,
    1122191.1211634828
   ]
  },
  "max_10m": {
   "gradient_pct": 36.78274223240578,
   "start_distance_m": 691.0,
   "end_distance_m": 701.0,
   "midpoint_distance_m": 696.0,
   "start_elevation_m": 1419.30727906319,
   "end_elevation_m": 1422.9855532864306,
   "start_xy": [
    2606926.1608512215,
    1122196.4108964151
   ],
   "end_xy": [
    2606934.647235935,
    1122191.1211634828
   ]
  },
  "max_20m": {
   "gradient_pct": 32.97183706970827,
   "start_distance_m": 625.0,
   "end_distance_m": 645.0,
   "midpoint_distance_m": 635.0,
   "start_elevation_m": 1401.294629539613,
   "end_elevation_m": 1407.8889969535546,
   "start_xy": [
    2606881.9370186054,
    1122239.8471872297
   ],
   "end_xy": [
    2606887.123481539,
    1122220.7436679031
   ]
  },
  "max_25m": {
   "gradient_pct": 32.23933206950642,
   "start_distance_m": 620.0,
   "end_distance_m": 645.0,
   "midpoint_distance_m": 632.5,
   "start_elevation_m": 1399.829163936178,
   "end_elevation_m": 1407.8889969535546,
   "start_xy": [
    2606881.253779064,
    1122244.7988356361
   ],
   "end_xy": [
    2606887.123481539,
    1122220.7436679031
   ]
  },
  "max_50m": {
   "gradient_pct": 29.38826342700486,
   "start_distance_m": 595.0,
   "end_distance_m": 645.0,
   "midpoint_distance_m": 620.0,
   "start_elevation_m": 1393.1948652400522,
   "end_elevation_m": 1407.8889969535546,
   "start_xy": [
    2606874.8794509596,
    1122268.4861578
   ],
   "end_xy": [
    2606887.123481539,
    1122220.7436679031
   ]
  },
  "max_100m": {
   "gradient_pct": 25.497534006609385,
   "start_distance_m": 545.0,
   "end_distance_m": 645.0,
   "midpoint_distance_m": 595.0,
   "start_elevation_m": 1382.3914629469452,
   "end_elevation_m": 1407.8889969535546,
   "start_xy": [
    2606853.9553652983,
    1122311.2414926058
   ],
   "end_xy": [
    2606887.123481539,
    1122220.7436679031
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 4.3497415330057265,
   "start_distance_m": 28.0,
   "end_distance_m": 33.0,
   "midpoint_distance_m": 30.5,
   "start_elevation_m": 1326.6281859907285,
   "end_elevation_m": 1326.8456730673788,
   "start_xy": [
    2606996.435862623,
    1122676.8693167213
   ],
   "end_xy": [
    2607000.5125733167,
    1122673.9744195002
   ]
  },
  "min_10m": {
   "gradient_pct": 6.234331083398956,
   "start_distance_m": 455.0,
   "end_distance_m": 465.0,
   "midpoint_distance_m": 460.0,
   "start_elevation_m": 1371.9160336183668,
   "end_elevation_m": 1372.5394667267067,
   "start_xy": [
    2606866.0212119436,
    1122398.3859935917
   ],
   "end_xy": [
    2606861.3585915887,
    1122389.539526985
   ]
  },
  "min_20m": {
   "gradient_pct": 6.383786910192839,
   "start_distance_m": 443.0,
   "end_distance_m": 463.0,
   "midpoint_distance_m": 453.0,
   "start_elevation_m": 1371.1429892279082,
   "end_elevation_m": 1372.4197466099467,
   "start_xy": [
    2606874.175306048,
    1122407.140895233
   ],
   "end_xy": [
    2606862.2911156593,
    1122391.3088203063
   ]
  },
  "min_25m": {
   "gradient_pct": 6.462713495247044,
   "start_distance_m": 443.0,
   "end_distance_m": 468.0,
   "midpoint_distance_m": 455.5,
   "start_elevation_m": 1371.1429892279082,
   "end_elevation_m": 1372.75866760172,
   "start_xy": [
    2606874.175306048,
    1122407.140895233
   ],
   "end_xy": [
    2606859.959805482,
    1122386.885587003
   ]
  },
  "min_50m": {
   "gradient_pct": 7.10130322301211,
   "start_distance_m": 434.0,
   "end_distance_m": 484.0,
   "midpoint_distance_m": 459.0,
   "start_elevation_m": 1370.3665713824278,
   "end_elevation_m": 1373.9172229939338,
   "start_xy": [
    2606883.149461333,
    1122407.4113860244
   ],
   "end_xy": [
    2606854.468210847,
    1122372.2023994403
   ]
  },
  "min_100m": {
   "gradient_pct": 7.807746636506636,
   "start_distance_m": 402.0,
   "end_distance_m": 502.0,
   "midpoint_distance_m": 452.0,
   "start_elevation_m": 1367.841928102016,
   "end_elevation_m": 1375.6496747385227,
   "start_xy": [
    2606915.1050152755,
    1122408.2461099424
   ],
   "end_xy": [
    2606853.7515691756,
    1122354.2166710782
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 54.65954174957233,
   "start_distance_m": 642.0,
   "end_distance_m": 644.0,
   "midpoint_distance_m": 643.0,
   "start_elevation_m": 1406.4370905783705,
   "end_elevation_m": 1407.530281413362,
   "start_xy": [
    2606885.8832042627,
    1122223.390504025
   ],
   "end_xy": [
    2606886.5697189053,
    1122221.5120212208
   ]
  },
  "max_3m": {
   "gradient_pct": 49.98925695152442,
   "start_distance_m": 641.0,
   "end_distance_m": 644.0,
   "midpoint_distance_m": 642.5,
   "start_elevation_m": 1406.0306037048163,
   "end_elevation_m": 1407.530281413362,
   "start_xy": [
    2606885.5399469417,
    1122224.3297454272
   ],
   "end_xy": [
    2606886.5697189053,
    1122221.5120212208
   ]
  }
 },
 "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": 0.015,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    680.0,
    685.0
   ],
   [
    709.0,
    714.0
   ]
  ],
  "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_2024_2606-1122_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2607-1122_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:34:17+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": [
   "2606-1122",
   "2607-1122"
  ],
  "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": "Chalais",
  "county": "Valais/Wallis",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}