{
 "ocl_version": "0.1.0",
 "name": "Via Alp Dado",
 "slug": "via-alp-dado-4",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 44.792140912841205,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 2536.0,
   "end_distance_m": 2538.0,
   "start_elevation_m": 1310.4866695949006,
   "end_elevation_m": 1311.3825124131574,
   "min_gradient_pct": -31.979982298764753,
   "suppressed_max_gradient_pct": 103.9954683715905,
   "suppressed_location_m": [
    0.0,
    2.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 42.24142631799168,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2536.0,
   "end_distance_m": 2539.0,
   "start_elevation_m": 1310.4866695949006,
   "end_elevation_m": 1311.7539123844404,
   "min_gradient_pct": -25.527862696564323,
   "suppressed_max_gradient_pct": 69.92759616224855,
   "suppressed_location_m": [
    0.0,
    3.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 36.905671038935,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1736.0,
   "end_distance_m": 1741.0,
   "start_elevation_m": 1218.5661130618084,
   "end_elevation_m": 1220.4113966137552,
   "min_gradient_pct": -21.570425808699838,
   "suppressed_max_gradient_pct": 60.55834744562617,
   "suppressed_location_m": [
    2607.0,
    2612.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.805195409954194,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1732.0,
   "end_distance_m": 1742.0,
   "start_elevation_m": 1218.0779195261882,
   "end_elevation_m": 1220.7584390671836,
   "min_gradient_pct": -14.901237060614676,
   "suppressed_max_gradient_pct": 51.92697990933084,
   "suppressed_location_m": [
    2604.0,
    2614.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.937236626720278,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1722.0,
   "end_distance_m": 1742.0,
   "start_elevation_m": 1216.3709917418396,
   "end_elevation_m": 1220.7584390671836,
   "min_gradient_pct": -7.055307233268877,
   "suppressed_max_gradient_pct": 34.02441872346117,
   "suppressed_location_m": [
    2599.0,
    2619.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.375424421347816,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1717.0,
   "end_distance_m": 1742.0,
   "start_elevation_m": 1215.4145829618467,
   "end_elevation_m": 1220.7584390671836,
   "min_gradient_pct": -3.4013825183365043,
   "suppressed_max_gradient_pct": 29.1083229167034,
   "suppressed_location_m": [
    2595.0,
    2620.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.758068236455983,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1522.0,
   "end_distance_m": 1572.0,
   "start_elevation_m": 1181.4961573466528,
   "end_elevation_m": 1190.3751914648808,
   "min_gradient_pct": 3.417021631659736,
   "suppressed_max_gradient_pct": 23.063371116770213,
   "suppressed_location_m": [
    1627.0,
    1677.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.904646294574604,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1523.0,
   "end_distance_m": 1623.0,
   "start_elevation_m": 1181.6635352959129,
   "end_elevation_m": 1198.5681815904875,
   "min_gradient_pct": 3.754154739445994,
   "suppressed_max_gradient_pct": 19.747218193458366,
   "suppressed_location_m": [
    1577.0,
    1677.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.322,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 176.0,
  "shape_class": "sustained"
 },
 "length_m": 4891.393651342265,
 "start_elevation_m": 1037.252483642348,
 "end_elevation_m": 1525.6760631835266,
 "endpoint_gain_m": 488.4235795411787,
 "overall_gradient_pct": 9.985366428382811,
 "accumulated_ascent_m": 493.9229570718644,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 36.905671038935,
   "start_distance_m": 1736.0,
   "end_distance_m": 1741.0,
   "midpoint_distance_m": 1738.5,
   "start_elevation_m": 1218.5661130618084,
   "end_elevation_m": 1220.4113966137552,
   "start_xy": [
    2726485.827654318,
    1182242.415704568
   ],
   "end_xy": [
    2726490.826712716,
    1182242.3187034584
   ]
  },
  "max_10m": {
   "gradient_pct": 26.805195409954194,
   "start_distance_m": 1732.0,
   "end_distance_m": 1742.0,
   "midpoint_distance_m": 1737.0,
   "start_elevation_m": 1218.0779195261882,
   "end_elevation_m": 1220.7584390671836,
   "start_xy": [
    2726481.8283959767,
    1182242.4927094765
   ],
   "end_xy": [
    2726491.8265322647,
    1182242.299706887
   ]
  },
  "max_20m": {
   "gradient_pct": 21.937236626720278,
   "start_distance_m": 1722.0,
   "end_distance_m": 1742.0,
   "midpoint_distance_m": 1732.0,
   "start_elevation_m": 1216.3709917418396,
   "end_elevation_m": 1220.7584390671836,
   "start_xy": [
    2726473.26674076,
    1182238.6335763917
   ],
   "end_xy": [
    2726491.8265322647,
    1182242.299706887
   ]
  },
  "max_25m": {
   "gradient_pct": 21.375424421347816,
   "start_distance_m": 1717.0,
   "end_distance_m": 1742.0,
   "midpoint_distance_m": 1729.5,
   "start_elevation_m": 1215.4145829618467,
   "end_elevation_m": 1220.7584390671836,
   "start_xy": [
    2726473.484922511,
    1182234.0920744524
   ],
   "end_xy": [
    2726491.8265322647,
    1182242.299706887
   ]
  },
  "max_50m": {
   "gradient_pct": 17.758068236455983,
   "start_distance_m": 1522.0,
   "end_distance_m": 1572.0,
   "midpoint_distance_m": 1547.0,
   "start_elevation_m": 1181.4961573466528,
   "end_elevation_m": 1190.3751914648808,
   "start_xy": [
    2726633.9086810667,
    1182131.1267061809
   ],
   "end_xy": [
    2726587.921120201,
    1182150.2662159675
   ]
  },
  "max_100m": {
   "gradient_pct": 16.904646294574604,
   "start_distance_m": 1523.0,
   "end_distance_m": 1623.0,
   "midpoint_distance_m": 1573.0,
   "start_elevation_m": 1181.6635352959129,
   "end_elevation_m": 1198.5681815904875,
   "start_xy": [
    2726633.2776585403,
    1182131.7581360373
   ],
   "end_xy": [
    2726547.519449019,
    1182180.1855263647
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -21.570425808699838,
   "start_distance_m": 2633.0,
   "end_distance_m": 2638.0,
   "midpoint_distance_m": 2635.5,
   "start_elevation_m": 1325.3976987654394,
   "end_elevation_m": 1324.3191774750044,
   "start_xy": [
    2726786.373583334,
    1182885.1587128695
   ],
   "end_xy": [
    2726781.525525827,
    1182884.0733377067
   ]
  },
  "min_10m": {
   "gradient_pct": -14.901237060614676,
   "start_distance_m": 2630.0,
   "end_distance_m": 2640.0,
   "midpoint_distance_m": 2635.0,
   "start_elevation_m": 1325.679885761494,
   "end_elevation_m": 1324.1897620554325,
   "start_xy": [
    2726789.3164445315,
    1182884.5909045485
   ],
   "end_xy": [
    2726779.6084752814,
    1182883.5033226854
   ]
  },
  "min_20m": {
   "gradient_pct": -7.055307233268877,
   "start_distance_m": 2620.0,
   "end_distance_m": 2640.0,
   "midpoint_distance_m": 2630.0,
   "start_elevation_m": 1325.6008235020863,
   "end_elevation_m": 1324.1897620554325,
   "start_xy": [
    2726799.0921786716,
    1182882.484961635
   ],
   "end_xy": [
    2726779.6084752814,
    1182883.5033226854
   ]
  },
  "min_25m": {
   "gradient_pct": -3.4013825183365043,
   "start_distance_m": 2620.0,
   "end_distance_m": 2645.0,
   "midpoint_distance_m": 2632.5,
   "start_elevation_m": 1325.6008235020863,
   "end_elevation_m": 1324.7504778725022,
   "start_xy": [
    2726799.0921786716,
    1182882.484961635
   ],
   "end_xy": [
    2726774.815598571,
    1182882.079128592
   ]
  },
  "min_50m": {
   "gradient_pct": 3.417021631659736,
   "start_distance_m": 373.0,
   "end_distance_m": 423.0,
   "midpoint_distance_m": 398.0,
   "start_elevation_m": 1064.9757888570527,
   "end_elevation_m": 1066.6842996728826,
   "start_xy": [
    2727379.1715939366,
    1181973.626110247
   ],
   "end_xy": [
    2727329.8465315737,
    1181968.4649098448
   ]
  },
  "min_100m": {
   "gradient_pct": 3.754154739445994,
   "start_distance_m": 364.0,
   "end_distance_m": 464.0,
   "midpoint_distance_m": 414.0,
   "start_elevation_m": 1064.5475726096065,
   "end_elevation_m": 1068.3017273490525,
   "start_xy": [
    2727387.377964746,
    1181969.9920184626
   ],
   "end_xy": [
    2727289.585067206,
    1181960.7180129348
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 44.792140912841205,
   "start_distance_m": 2536.0,
   "end_distance_m": 2538.0,
   "midpoint_distance_m": 2537.0,
   "start_elevation_m": 1310.4866695949006,
   "end_elevation_m": 1311.3825124131574,
   "start_xy": [
    2726836.5644581574,
    1182864.1193813977
   ],
   "end_xy": [
    2726837.5984452325,
    1182865.831359998
   ]
  },
  "max_3m": {
   "gradient_pct": 42.24142631799168,
   "start_distance_m": 2536.0,
   "end_distance_m": 2539.0,
   "midpoint_distance_m": 2537.5,
   "start_elevation_m": 1310.4866695949006,
   "end_elevation_m": 1311.7539123844404,
   "start_xy": [
    2726836.5644581574,
    1182864.1193813977
   ],
   "end_xy": [
    2726838.11543877,
    1182866.6873492983
   ]
  }
 },
 "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": 0.005,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.011,
   "windows_resited": [
    20.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 1654.0,
     "end_m": 1659.0,
     "raw_pct": 36.97,
     "reason": "short-step"
    },
    {
     "window_m": 20.0,
     "start_m": 1631.0,
     "end_m": 1651.0,
     "raw_pct": 21.97,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    4.0
   ],
   [
    1629.0,
    1661.0
   ],
   [
    2382.0,
    2387.0
   ],
   [
    2602.0,
    2613.0
   ]
  ],
  "review": [
   "short_window_divergence"
  ],
  "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_2023_2725-1182_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2725-1183_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2726-1181_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2726-1182_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2726-1183_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2727-1181_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2727-1182_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2727-1183_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-12T01:32:40+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-ch-ch/batch-switzerland-rchunk02.pbf",
  "osm_snapshot": "",
  "run_id": "texture-ch-ch-260912",
  "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": [
   "2725-1182",
   "2725-1183",
   "2726-1181",
   "2726-1182",
   "2726-1183",
   "2727-1181",
   "2727-1182",
   "2727-1183"
  ],
  "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": "Breil/Brigels",
  "county": "Graub\u00fcnden/Grischun/Grigioni",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}