{
 "ocl_version": "0.1.0",
 "name": "Seewiserstrasse",
 "slug": "seewiserstrasse",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 19.50888891683462,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 597.0,
   "end_distance_m": 599.0,
   "start_elevation_m": 668.0372029969768,
   "end_elevation_m": 668.4273807753135,
   "min_gradient_pct": -4.208253179996291
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 18.124223684427914,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 596.0,
   "end_distance_m": 599.0,
   "start_elevation_m": 667.8836540647807,
   "end_elevation_m": 668.4273807753135,
   "min_gradient_pct": -4.242359743830093
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 17.20271259876654,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 597.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 668.0372029969768,
   "end_elevation_m": 668.8973386269151,
   "min_gradient_pct": -3.1160220485935497
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 16.532988794047014,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 592.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 667.2440397475104,
   "end_elevation_m": 668.8973386269151,
   "min_gradient_pct": -2.1957730576241374
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 15.246769235720876,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 587.0,
   "end_distance_m": 607.0,
   "start_elevation_m": 666.5742205694769,
   "end_elevation_m": 669.6235744166211,
   "min_gradient_pct": 1.6969082370485467
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.99720549310996,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 580.0,
   "end_distance_m": 605.0,
   "start_elevation_m": 665.5712410586781,
   "end_elevation_m": 669.3205424319556,
   "min_gradient_pct": 2.1675116528508624
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.202413085115722,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1234.0,
   "end_distance_m": 1284.0,
   "start_elevation_m": 736.9770500737961,
   "end_elevation_m": 744.078256616354,
   "min_gradient_pct": 2.3236371130597036
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.55949717970509,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 557.0,
   "end_distance_m": 657.0,
   "start_elevation_m": 662.5694298323112,
   "end_elevation_m": 676.1289270120163,
   "min_gradient_pct": 2.888681613388485
  }
 ],
 "shape": {
  "ascent_concentration": 0.278,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 476.0,
  "shape_class": "sustained"
 },
 "length_m": 3355.6017783889492,
 "start_elevation_m": 598.2287637001941,
 "end_elevation_m": 945.8881431577113,
 "endpoint_gain_m": 347.65937945751716,
 "overall_gradient_pct": 10.360567266847472,
 "accumulated_ascent_m": 347.93347007740965,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 17.20271259876654,
   "start_distance_m": 597.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 599.5,
   "start_elevation_m": 668.0372029969768,
   "end_elevation_m": 668.8973386269151,
   "start_xy": [
    2767329.532493444,
    1205637.2260629109
   ],
   "end_xy": [
    2767330.940361163,
    1205642.0237611595
   ]
  },
  "max_10m": {
   "gradient_pct": 16.532988794047014,
   "start_distance_m": 592.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 597.0,
   "start_elevation_m": 667.2440397475104,
   "end_elevation_m": 668.8973386269151,
   "start_xy": [
    2767328.084869726,
    1205632.443712674
   ],
   "end_xy": [
    2767330.940361163,
    1205642.0237611595
   ]
  },
  "max_20m": {
   "gradient_pct": 15.246769235720876,
   "start_distance_m": 587.0,
   "end_distance_m": 607.0,
   "midpoint_distance_m": 597.0,
   "start_elevation_m": 666.5742205694769,
   "end_elevation_m": 669.6235744166211,
   "start_xy": [
    2767325.9036445017,
    1205627.9445731428
   ],
   "end_xy": [
    2767332.348228882,
    1205646.8214594084
   ]
  },
  "max_25m": {
   "gradient_pct": 14.99720549310996,
   "start_distance_m": 580.0,
   "end_distance_m": 605.0,
   "midpoint_distance_m": 592.5,
   "start_elevation_m": 665.5712410586781,
   "end_elevation_m": 669.3205424319556,
   "start_xy": [
    2767322.849929188,
    1205621.6457777992
   ],
   "end_xy": [
    2767331.7850817945,
    1205644.9023801088
   ]
  },
  "max_50m": {
   "gradient_pct": 14.202413085115722,
   "start_distance_m": 1234.0,
   "end_distance_m": 1284.0,
   "midpoint_distance_m": 1259.0,
   "start_elevation_m": 736.9770500737961,
   "end_elevation_m": 744.078256616354,
   "start_xy": [
    2767259.8622117206,
    1205809.9580974926
   ],
   "end_xy": [
    2767273.891206036,
    1205856.9934448092
   ]
  },
  "max_100m": {
   "gradient_pct": 13.55949717970509,
   "start_distance_m": 557.0,
   "end_distance_m": 657.0,
   "midpoint_distance_m": 607.0,
   "start_elevation_m": 662.5694298323112,
   "end_elevation_m": 676.1289270120163,
   "start_xy": [
    2767311.746002231,
    1205601.5582724756
   ],
   "end_xy": [
    2767349.396267542,
    1205693.6057916253
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.1160220485935497,
   "start_distance_m": 3306.0,
   "end_distance_m": 3311.0,
   "midpoint_distance_m": 3308.5,
   "start_elevation_m": 942.4489495256475,
   "end_elevation_m": 942.2931484232179,
   "start_xy": [
    2767390.2556000473,
    1206690.4838809255
   ],
   "end_xy": [
    2767385.9016474043,
    1206688.0256099107
   ]
  },
  "min_10m": {
   "gradient_pct": -2.1957730576241374,
   "start_distance_m": 3301.0,
   "end_distance_m": 3311.0,
   "midpoint_distance_m": 3306.0,
   "start_elevation_m": 942.5127257289803,
   "end_elevation_m": 942.2931484232179,
   "start_xy": [
    2767394.4769948656,
    1206692.6220828437
   ],
   "end_xy": [
    2767385.9016474043,
    1206688.0256099107
   ]
  },
  "min_20m": {
   "gradient_pct": 1.6969082370485467,
   "start_distance_m": 3301.0,
   "end_distance_m": 3321.0,
   "midpoint_distance_m": 3311.0,
   "start_elevation_m": 942.5127257289803,
   "end_elevation_m": 942.85210737639,
   "start_xy": [
    2767394.4769948656,
    1206692.6220828437
   ],
   "end_xy": [
    2767377.220032769,
    1206683.0652311412
   ]
  },
  "min_25m": {
   "gradient_pct": 2.1675116528508624,
   "start_distance_m": 2246.0,
   "end_distance_m": 2271.0,
   "midpoint_distance_m": 2258.5,
   "start_elevation_m": 844.7703727685526,
   "end_elevation_m": 845.3122506817654,
   "start_xy": [
    2767101.9314877978,
    1206097.141166184
   ],
   "end_xy": [
    2767092.159598645,
    1206074.1300779355
   ]
  },
  "min_50m": {
   "gradient_pct": 2.3236371130597036,
   "start_distance_m": 2204.0,
   "end_distance_m": 2254.0,
   "midpoint_distance_m": 2229.0,
   "start_elevation_m": 843.7706152287026,
   "end_elevation_m": 844.9324337852324,
   "start_xy": [
    2767117.7884776504,
    1206135.861682518
   ],
   "end_xy": [
    2767098.804483269,
    1206089.7776179446
   ]
  },
  "min_100m": {
   "gradient_pct": 2.888681613388485,
   "start_distance_m": 2190.0,
   "end_distance_m": 2290.0,
   "midpoint_distance_m": 2240.0,
   "start_elevation_m": 843.1273927229117,
   "end_elevation_m": 846.0160743363002,
   "start_xy": [
    2767129.690825204,
    1206142.9834606997
   ],
   "end_xy": [
    2767079.6634981423,
    1206063.2481270875
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 19.50888891683462,
   "start_distance_m": 597.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 598.0,
   "start_elevation_m": 668.0372029969768,
   "end_elevation_m": 668.4273807753135,
   "start_xy": [
    2767329.532493444,
    1205637.2260629109
   ],
   "end_xy": [
    2767330.0956405317,
    1205639.1451422104
   ]
  },
  "max_3m": {
   "gradient_pct": 18.124223684427914,
   "start_distance_m": 596.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 597.5,
   "start_elevation_m": 667.8836540647807,
   "end_elevation_m": 668.4273807753135,
   "start_xy": [
    2767329.2509199004,
    1205636.266523261
   ],
   "end_xy": [
    2767330.0956405317,
    1205639.1451422104
   ]
  }
 },
 "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_2023_2766-1205_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2766-1206_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2767-1205_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2767-1206_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T04:51:06+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": [
   "2766-1205",
   "2766-1206",
   "2767-1205",
   "2767-1206"
  ],
  "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": "Seewis im Pr\u00e4ttigau",
  "county": "Graub\u00fcnden/Grischun/Grigioni",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}