{
 "ocl_version": "0.1.0",
 "name": "Via Pirada",
 "slug": "via-pirada",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.875208045657246,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 112.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 289.59654185478985,
   "end_elevation_m": 290.274046015703,
   "min_gradient_pct": -17.70519891288984,
   "suppressed_max_gradient_pct": 65.23748353598648,
   "suppressed_location_m": [
    116.0,
    118.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.084699991601916,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 111.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 289.31150501595494,
   "end_elevation_m": 290.274046015703,
   "min_gradient_pct": -17.46584412302165,
   "suppressed_max_gradient_pct": 47.99904451792637,
   "suppressed_location_m": [
    115.0,
    118.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.955391527606025,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 109.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 288.9262764393227,
   "end_elevation_m": 290.274046015703,
   "min_gradient_pct": -5.748923740579812,
   "suppressed_max_gradient_pct": 38.1255830835471,
   "suppressed_location_m": [
    116.0,
    121.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.60059863237211,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 144.0,
   "end_distance_m": 154.0,
   "start_elevation_m": 294.9813045951652,
   "end_elevation_m": 297.34136445840244,
   "min_gradient_pct": -3.7774828272063132,
   "suppressed_max_gradient_pct": 31.26168861442011,
   "suppressed_location_m": [
    111.0,
    121.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.84247101005468,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 135.0,
   "end_distance_m": 155.0,
   "start_elevation_m": 293.1636396762543,
   "end_elevation_m": 297.53213387826526,
   "min_gradient_pct": -1.2497407532910643,
   "suppressed_max_gradient_pct": 25.065472477321862,
   "suppressed_location_m": [
    101.0,
    121.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.20750341924986,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 135.0,
   "end_distance_m": 160.0,
   "start_elevation_m": 293.1636396762543,
   "end_elevation_m": 298.4655155310668,
   "min_gradient_pct": -0.5125713233255738,
   "suppressed_max_gradient_pct": 23.067356593560362,
   "suppressed_location_m": [
    96.0,
    121.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.179522743905636,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 64.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 281.6842846437502,
   "end_elevation_m": 290.274046015703,
   "min_gradient_pct": 6.662871312667107,
   "suppressed_max_gradient_pct": 19.254541545166262,
   "suppressed_location_m": [
    71.0,
    121.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.120563680758892,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 14.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 275.1534823349441,
   "end_elevation_m": 290.274046015703,
   "min_gradient_pct": 12.69271798198048,
   "suppressed_max_gradient_pct": 17.62867247043863,
   "suppressed_location_m": [
    67.0,
    167.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.376,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 82.0,
  "shape_class": "sustained"
 },
 "length_m": 202.889046466313,
 "start_elevation_m": 274.2434761103509,
 "end_elevation_m": 300.22681220263695,
 "endpoint_gain_m": 25.983336092286038,
 "overall_gradient_pct": 12.806672683830774,
 "accumulated_ascent_m": 27.69821043628599,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.955391527606025,
   "start_distance_m": 109.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 111.5,
   "start_elevation_m": 288.9262764393227,
   "end_elevation_m": 290.274046015703,
   "start_xy": [
    2714185.19435188,
    1094052.266133226
   ],
   "end_xy": [
    2714188.7235247823,
    1094055.8080167116
   ]
  },
  "max_10m": {
   "gradient_pct": 23.60059863237211,
   "start_distance_m": 144.0,
   "end_distance_m": 154.0,
   "midpoint_distance_m": 149.0,
   "start_elevation_m": 294.9813045951652,
   "end_elevation_m": 297.34136445840244,
   "start_xy": [
    2714205.913050739,
    1094076.7255668086
   ],
   "end_xy": [
    2714209.733407489,
    1094067.8987453831
   ]
  },
  "max_20m": {
   "gradient_pct": 21.84247101005468,
   "start_distance_m": 135.0,
   "end_distance_m": 155.0,
   "midpoint_distance_m": 145.0,
   "start_elevation_m": 293.1636396762543,
   "end_elevation_m": 297.53213387826526,
   "start_xy": [
    2714201.0784591082,
    1094072.531105789
   ],
   "end_xy": [
    2714209.93088573,
    1094066.9184381126
   ]
  },
  "max_25m": {
   "gradient_pct": 21.20750341924986,
   "start_distance_m": 135.0,
   "end_distance_m": 160.0,
   "midpoint_distance_m": 147.5,
   "start_elevation_m": 293.1636396762543,
   "end_elevation_m": 298.4655155310668,
   "start_xy": [
    2714201.0784591082,
    1094072.531105789
   ],
   "end_xy": [
    2714210.479974085,
    1094061.960272781
   ]
  },
  "max_50m": {
   "gradient_pct": 17.179522743905636,
   "start_distance_m": 64.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 89.0,
   "start_elevation_m": 281.6842846437502,
   "end_elevation_m": 290.274046015703,
   "start_xy": [
    2714161.093813661,
    1094014.6214244508
   ],
   "end_xy": [
    2714188.7235247823,
    1094055.8080167116
   ]
  },
  "max_100m": {
   "gradient_pct": 15.120563680758892,
   "start_distance_m": 14.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 64.0,
   "start_elevation_m": 275.1534823349441,
   "end_elevation_m": 290.274046015703,
   "start_xy": [
    2714140.659847265,
    1094019.8289647084
   ],
   "end_xy": [
    2714188.7235247823,
    1094055.8080167116
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.748923740579812,
   "start_distance_m": 197.0,
   "end_distance_m": 202.0,
   "midpoint_distance_m": 199.5,
   "start_elevation_m": 300.5666241105912,
   "end_elevation_m": 300.2791779235622,
   "start_xy": [
    2714207.0812192513,
    1094025.6672653686
   ],
   "end_xy": [
    2714205.6546561727,
    1094020.875092815
   ]
  },
  "min_10m": {
   "gradient_pct": -3.7774828272063132,
   "start_distance_m": 192.0,
   "end_distance_m": 202.0,
   "midpoint_distance_m": 197.0,
   "start_elevation_m": 300.65692620628283,
   "end_elevation_m": 300.2791779235622,
   "start_xy": [
    2714208.5077823293,
    1094030.4594379223
   ],
   "end_xy": [
    2714205.6546561727,
    1094020.875092815
   ]
  },
  "min_20m": {
   "gradient_pct": -1.2497407532910643,
   "start_distance_m": 182.0,
   "end_distance_m": 202.0,
   "midpoint_distance_m": 192.0,
   "start_elevation_m": 300.5291260742204,
   "end_elevation_m": 300.2791779235622,
   "start_xy": [
    2714211.360908486,
    1094040.0437830295
   ],
   "end_xy": [
    2714205.6546561727,
    1094020.875092815
   ]
  },
  "min_25m": {
   "gradient_pct": -0.5125713233255738,
   "start_distance_m": 177.0,
   "end_distance_m": 202.0,
   "midpoint_distance_m": 189.5,
   "start_elevation_m": 300.4073207543936,
   "end_elevation_m": 300.2791779235622,
   "start_xy": [
    2714211.4686922794,
    1094044.9890490088
   ],
   "end_xy": [
    2714205.6546561727,
    1094020.875092815
   ]
  },
  "min_50m": {
   "gradient_pct": 6.662871312667107,
   "start_distance_m": 152.0,
   "end_distance_m": 202.0,
   "midpoint_distance_m": 177.0,
   "start_elevation_m": 296.94774226722865,
   "end_elevation_m": 300.2791779235622,
   "start_xy": [
    2714209.338451008,
    1094069.859359924
   ],
   "end_xy": [
    2714205.6546561727,
    1094020.875092815
   ]
  },
  "min_100m": {
   "gradient_pct": 12.69271798198048,
   "start_distance_m": 102.0,
   "end_distance_m": 202.0,
   "midpoint_distance_m": 152.0,
   "start_elevation_m": 287.5864599415817,
   "end_elevation_m": 300.2791779235622,
   "start_xy": [
    2714180.2535098167,
    1094047.307496346
   ],
   "end_xy": [
    2714205.6546561727,
    1094020.875092815
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.875208045657246,
   "start_distance_m": 112.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 113.0,
   "start_elevation_m": 289.59654185478985,
   "end_elevation_m": 290.274046015703,
   "start_xy": [
    2714187.311855621,
    1094054.3912633173
   ],
   "end_xy": [
    2714188.7235247823,
    1094055.8080167116
   ]
  },
  "max_3m": {
   "gradient_pct": 32.084699991601916,
   "start_distance_m": 111.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 112.5,
   "start_elevation_m": 289.31150501595494,
   "end_elevation_m": 290.274046015703,
   "start_xy": [
    2714186.6060210406,
    1094053.6828866203
   ],
   "end_xy": [
    2714188.7235247823,
    1094055.8080167116
   ]
  }
 },
 "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": 0.03,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    115.0,
    120.0
   ]
  ],
  "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_2022_2714-1093_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2714-1094_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T03:28:31+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-run7-260911",
  "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": [
   "2714-1093",
   "2714-1094"
  ],
  "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": "Collina d'Oro",
  "county": "Ticino",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}