{
 "ocl_version": "0.1.0",
 "name": "Via Vallone",
 "slug": "via-vallone",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 20.817539403753926,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 395.0,
   "end_distance_m": 397.0,
   "start_elevation_m": 417.73261735797394,
   "end_elevation_m": 418.148968146049,
   "min_gradient_pct": -3.135551589778629
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 19.821023880115263,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 119.0,
   "end_distance_m": 122.0,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 374.5928690165271,
   "min_gradient_pct": -1.394861972801209
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 19.276656329747084,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 119.0,
   "end_distance_m": 124.0,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 374.962071116611,
   "min_gradient_pct": 0.9384938108348706
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 18.388010863761224,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 119.0,
   "end_distance_m": 129.0,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 375.8370393864998,
   "min_gradient_pct": 4.336586817914849
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 17.288644133110154,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 119.0,
   "end_distance_m": 139.0,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 377.4559671267457,
   "min_gradient_pct": 5.631256444997916
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.103650537781505,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 119.0,
   "end_distance_m": 144.0,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 378.27415093456904,
   "min_gradient_pct": 6.073525754441107
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.911925135282445,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 350.0,
   "end_distance_m": 400.0,
   "start_elevation_m": 410.21343046799717,
   "end_elevation_m": 418.6693930356384,
   "min_gradient_pct": 6.767465457796334
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.76923567923768,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 325.0,
   "end_distance_m": 425.0,
   "start_elevation_m": 406.0499098748403,
   "end_elevation_m": 422.819145554078,
   "min_gradient_pct": 8.0401566638252
  }
 ],
 "shape": {
  "ascent_concentration": 0.273,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 375.0,
  "shape_class": "sustained"
 },
 "length_m": 3629.187405939622,
 "start_elevation_m": 360.3384998684162,
 "end_elevation_m": 830.2420806738255,
 "endpoint_gain_m": 469.9035808054093,
 "overall_gradient_pct": 12.947900679814797,
 "accumulated_ascent_m": 469.9662918372049,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 19.276656329747084,
   "start_distance_m": 119.0,
   "end_distance_m": 124.0,
   "midpoint_distance_m": 121.5,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 374.962071116611,
   "start_xy": [
    2714557.272138656,
    1099766.502074846
   ],
   "end_xy": [
    2714552.4122489924,
    1099765.3565257022
   ]
  },
  "max_10m": {
   "gradient_pct": 18.388010863761224,
   "start_distance_m": 119.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 124.0,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 375.8370393864998,
   "start_xy": [
    2714557.272138656,
    1099766.502074846
   ],
   "end_xy": [
    2714547.413752116,
    1099765.233932985
   ]
  },
  "max_20m": {
   "gradient_pct": 17.288644133110154,
   "start_distance_m": 119.0,
   "end_distance_m": 139.0,
   "midpoint_distance_m": 129.0,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 377.4559671267457,
   "start_xy": [
    2714557.272138656,
    1099766.502074846
   ],
   "end_xy": [
    2714537.416767694,
    1099764.988367915
   ]
  },
  "max_25m": {
   "gradient_pct": 17.103650537781505,
   "start_distance_m": 119.0,
   "end_distance_m": 144.0,
   "midpoint_distance_m": 131.5,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 378.27415093456904,
   "start_xy": [
    2714557.272138656,
    1099766.502074846
   ],
   "end_xy": [
    2714532.418284396,
    1099764.8652228038
   ]
  },
  "max_50m": {
   "gradient_pct": 16.911925135282445,
   "start_distance_m": 350.0,
   "end_distance_m": 400.0,
   "midpoint_distance_m": 375.0,
   "start_elevation_m": 410.21343046799717,
   "end_elevation_m": 418.6693930356384,
   "start_xy": [
    2714327.2740490097,
    1099750.153422737
   ],
   "end_xy": [
    2714277.7258816552,
    1099743.4467758965
   ]
  },
  "max_100m": {
   "gradient_pct": 16.76923567923768,
   "start_distance_m": 325.0,
   "end_distance_m": 425.0,
   "midpoint_distance_m": 375.0,
   "start_elevation_m": 406.0499098748403,
   "end_elevation_m": 422.819145554078,
   "start_xy": [
    2714352.048251232,
    1099753.5058621932
   ],
   "end_xy": [
    2714252.9517979785,
    1099740.0934524764
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.9384938108348706,
   "start_distance_m": 442.0,
   "end_distance_m": 447.0,
   "midpoint_distance_m": 444.5,
   "start_elevation_m": 425.37169659019673,
   "end_elevation_m": 425.4186212807385,
   "start_xy": [
    2714236.648162093,
    1099742.2658049115
   ],
   "end_xy": [
    2714232.3712602737,
    1099743.9460087111
   ]
  },
  "min_10m": {
   "gradient_pct": 4.336586817914849,
   "start_distance_m": 3619.0,
   "end_distance_m": 3629.0,
   "midpoint_distance_m": 3624.0,
   "start_elevation_m": 829.8025652003402,
   "end_elevation_m": 830.2362238821316,
   "start_xy": [
    2713235.563855054,
    1100502.9734613907
   ],
   "end_xy": [
    2713225.659399962,
    1100501.9035031951
   ]
  },
  "min_20m": {
   "gradient_pct": 5.631256444997916,
   "start_distance_m": 3609.0,
   "end_distance_m": 3629.0,
   "midpoint_distance_m": 3619.0,
   "start_elevation_m": 829.109972593132,
   "end_elevation_m": 830.2362238821316,
   "start_xy": [
    2713245.2956254706,
    1100505.2574330084
   ],
   "end_xy": [
    2713225.659399962,
    1100501.9035031951
   ]
  },
  "min_25m": {
   "gradient_pct": 6.073525754441107,
   "start_distance_m": 3215.0,
   "end_distance_m": 3240.0,
   "midpoint_distance_m": 3227.5,
   "start_elevation_m": 786.3514607258903,
   "end_elevation_m": 787.8698421645006,
   "start_xy": [
    2713514.8884221185,
    1100441.4468807322
   ],
   "end_xy": [
    2713527.48921215,
    1100420.0567757546
   ]
  },
  "min_50m": {
   "gradient_pct": 6.767465457796334,
   "start_distance_m": 3208.0,
   "end_distance_m": 3258.0,
   "midpoint_distance_m": 3233.0,
   "start_elevation_m": 785.8292320151779,
   "end_elevation_m": 789.2129647440761,
   "start_xy": [
    2713517.811019415,
    1100447.522859706
   ],
   "end_xy": [
    2713526.5046301046,
    1100404.827131003
   ]
  },
  "min_100m": {
   "gradient_pct": 8.0401566638252,
   "start_distance_m": 3529.0,
   "end_distance_m": 3629.0,
   "midpoint_distance_m": 3579.0,
   "start_elevation_m": 822.1960672183064,
   "end_elevation_m": 830.2362238821316,
   "start_xy": [
    2713322.2014371413,
    1100527.2699766601
   ],
   "end_xy": [
    2713225.659399962,
    1100501.9035031951
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 20.817539403753926,
   "start_distance_m": 395.0,
   "end_distance_m": 397.0,
   "midpoint_distance_m": 396.0,
   "start_elevation_m": 417.73261735797394,
   "end_elevation_m": 418.148968146049,
   "start_xy": [
    2714282.6806983906,
    1099744.1174405806
   ],
   "end_xy": [
    2714280.6987716965,
    1099743.849174707
   ]
  },
  "max_3m": {
   "gradient_pct": 19.821023880115263,
   "start_distance_m": 119.0,
   "end_distance_m": 122.0,
   "midpoint_distance_m": 120.5,
   "start_elevation_m": 373.99823830012366,
   "end_elevation_m": 374.5928690165271,
   "start_xy": [
    2714557.272138656,
    1099766.502074846
   ],
   "end_xy": [
    2714554.361604471,
    1099765.7748948424
   ]
  }
 },
 "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_2022_2713-1099_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2713-1100_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2714-1099_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2714-1100_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:25:54+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": [
   "2713-1099",
   "2713-1100",
   "2714-1099",
   "2714-1100"
  ],
  "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": "Gravesano",
  "county": "Ticino",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}