{
 "ocl_version": "0.1.0",
 "name": "Houwetliweg",
 "slug": "houwetliweg",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.206482599391165,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 7357.0,
   "end_distance_m": 7359.0,
   "start_elevation_m": 1424.683854541813,
   "end_elevation_m": 1425.4079841938008,
   "min_gradient_pct": -13.736044755592047
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.46727839558601,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 7357.0,
   "end_distance_m": 7360.0,
   "start_elevation_m": 1424.683854541813,
   "end_elevation_m": 1425.5378728936805,
   "min_gradient_pct": -13.056413550642295
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.0565202779012,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1209.0,
   "end_distance_m": 1214.0,
   "start_elevation_m": 766.9471776071932,
   "end_elevation_m": 768.2000036210883,
   "min_gradient_pct": -11.384111136549109
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.683431933890233,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1202.0,
   "end_distance_m": 1212.0,
   "start_elevation_m": 765.3542799515186,
   "end_elevation_m": 767.7226231449076,
   "min_gradient_pct": -5.31032260956863
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.259234024171747,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1195.0,
   "end_distance_m": 1215.0,
   "start_elevation_m": 763.7831371997747,
   "end_elevation_m": 768.4349840046091,
   "min_gradient_pct": 0.6349685811346717
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.021836061307567,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1181.0,
   "end_distance_m": 1206.0,
   "start_elevation_m": 760.5988440271141,
   "end_elevation_m": 766.354303042441,
   "min_gradient_pct": 0.7928958465772666
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.733736208165965,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1172.0,
   "end_distance_m": 1222.0,
   "start_elevation_m": 758.6005423254429,
   "end_elevation_m": 769.9674104295259,
   "min_gradient_pct": 1.0538236101535858
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.959454651777378,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1160.0,
   "end_distance_m": 1260.0,
   "start_elevation_m": 756.1964241952865,
   "end_elevation_m": 777.1558788470638,
   "min_gradient_pct": 2.023656305509462
  }
 ],
 "shape": {
  "ascent_concentration": 0.295,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 724.0,
  "shape_class": "sustained"
 },
 "length_m": 8670.328434860874,
 "start_elevation_m": 646.0703722392481,
 "end_elevation_m": 1563.7101706445294,
 "endpoint_gain_m": 917.6397984052813,
 "overall_gradient_pct": 10.58367979136428,
 "accumulated_ascent_m": 922.1621604038219,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.0565202779012,
   "start_distance_m": 1209.0,
   "end_distance_m": 1214.0,
   "midpoint_distance_m": 1211.5,
   "start_elevation_m": 766.9471776071932,
   "end_elevation_m": 768.2000036210883,
   "start_xy": [
    2648218.9679876557,
    1178880.2919384884
   ],
   "end_xy": [
    2648216.3569076364,
    1178884.553394264
   ]
  },
  "max_10m": {
   "gradient_pct": 23.683431933890233,
   "start_distance_m": 1202.0,
   "end_distance_m": 1212.0,
   "midpoint_distance_m": 1207.0,
   "start_elevation_m": 765.3542799515186,
   "end_elevation_m": 767.7226231449076,
   "start_xy": [
    2648222.7659179606,
    1178874.4118257854
   ],
   "end_xy": [
    2648217.3403032394,
    1178882.8119867896
   ]
  },
  "max_20m": {
   "gradient_pct": 23.259234024171747,
   "start_distance_m": 1195.0,
   "end_distance_m": 1215.0,
   "midpoint_distance_m": 1205.0,
   "start_elevation_m": 763.7831371997747,
   "end_elevation_m": 768.4349840046091,
   "start_xy": [
    2648226.5638482654,
    1178868.5317130825
   ],
   "end_xy": [
    2648215.8667704645,
    1178885.4250395775
   ]
  },
  "max_25m": {
   "gradient_pct": 23.021836061307567,
   "start_distance_m": 1181.0,
   "end_distance_m": 1206.0,
   "midpoint_distance_m": 1193.5,
   "start_elevation_m": 760.5988440271141,
   "end_elevation_m": 766.354303042441,
   "start_xy": [
    2648235.293504476,
    1178857.6202068878
   ],
   "end_xy": [
    2648220.5956720724,
    1178877.7718901872
   ]
  },
  "max_50m": {
   "gradient_pct": 22.733736208165965,
   "start_distance_m": 1172.0,
   "end_distance_m": 1222.0,
   "midpoint_distance_m": 1197.0,
   "start_elevation_m": 758.6005423254429,
   "end_elevation_m": 769.9674104295259,
   "start_xy": [
    2648240.8807925135,
    1178850.620510355
   ],
   "end_xy": [
    2648212.4358102605,
    1178891.5265567722
   ]
  },
  "max_100m": {
   "gradient_pct": 20.959454651777378,
   "start_distance_m": 1160.0,
   "end_distance_m": 1260.0,
   "midpoint_distance_m": 1210.0,
   "start_elevation_m": 756.1964241952865,
   "end_elevation_m": 777.1558788470638,
   "start_xy": [
    2648244.8361087106,
    1178839.3890739721
   ],
   "end_xy": [
    2648187.9527050224,
    1178920.4979465033
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.384111136549109,
   "start_distance_m": 8171.0,
   "end_distance_m": 8176.0,
   "midpoint_distance_m": 8173.5,
   "start_elevation_m": 1507.6646706867828,
   "end_elevation_m": 1507.0954651299553,
   "start_xy": [
    2648875.549761462,
    1180955.557133827
   ],
   "end_xy": [
    2648880.5310577583,
    1180955.9649349826
   ]
  },
  "min_10m": {
   "gradient_pct": -5.31032260956863,
   "start_distance_m": 8168.0,
   "end_distance_m": 8178.0,
   "midpoint_distance_m": 8173.0,
   "start_elevation_m": 1507.6870995963538,
   "end_elevation_m": 1507.156067335397,
   "start_xy": [
    2648872.5615894957,
    1180955.8232696927
   ],
   "end_xy": [
    2648882.523593849,
    1180956.1375615369
   ]
  },
  "min_20m": {
   "gradient_pct": 0.6349685811346717,
   "start_distance_m": 496.0,
   "end_distance_m": 516.0,
   "midpoint_distance_m": 506.0,
   "start_elevation_m": 704.3805648218929,
   "end_elevation_m": 704.5075585381198,
   "start_xy": [
    2648339.9270920395,
    1178564.2576094598
   ],
   "end_xy": [
    2648322.276315448,
    1178554.8528188874
   ]
  },
  "min_25m": {
   "gradient_pct": 0.7928958465772666,
   "start_distance_m": 481.0,
   "end_distance_m": 506.0,
   "midpoint_distance_m": 493.5,
   "start_elevation_m": 704.1630541962118,
   "end_elevation_m": 704.3612781578561,
   "start_xy": [
    2648353.1651744833,
    1178571.311202389
   ],
   "end_xy": [
    2648331.1017037435,
    1178559.5552141736
   ]
  },
  "min_50m": {
   "gradient_pct": 1.0538236101535858,
   "start_distance_m": 460.0,
   "end_distance_m": 510.0,
   "midpoint_distance_m": 485.0,
   "start_elevation_m": 703.8851075109002,
   "end_elevation_m": 704.412019315977,
   "start_xy": [
    2648371.6810313454,
    1178581.21876895
   ],
   "end_xy": [
    2648327.571548425,
    1178557.674256059
   ]
  },
  "min_100m": {
   "gradient_pct": 2.023656305509462,
   "start_distance_m": 429.0,
   "end_distance_m": 529.0,
   "midpoint_distance_m": 479.0,
   "start_elevation_m": 702.6889360261046,
   "end_elevation_m": 704.712592331614,
   "start_xy": [
    2648399.032115162,
    1178595.8085854738
   ],
   "end_xy": [
    2648310.803310663,
    1178548.7397050154
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.206482599391165,
   "start_distance_m": 7357.0,
   "end_distance_m": 7359.0,
   "midpoint_distance_m": 7358.0,
   "start_elevation_m": 1424.683854541813,
   "end_elevation_m": 1425.4079841938008,
   "start_xy": [
    2648477.0648546643,
    1180499.2924876418
   ],
   "end_xy": [
    2648475.421334502,
    1180500.4321549074
   ]
  },
  "max_3m": {
   "gradient_pct": 28.46727839558601,
   "start_distance_m": 7357.0,
   "end_distance_m": 7360.0,
   "midpoint_distance_m": 7358.5,
   "start_elevation_m": 1424.683854541813,
   "end_elevation_m": 1425.5378728936805,
   "start_xy": [
    2648477.0648546643,
    1180499.2924876418
   ],
   "end_xy": [
    2648474.599574421,
    1180501.0019885404
   ]
  }
 },
 "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_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_2025_2647-1178_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2647-1179_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2648-1178_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2648-1179_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2648-1180_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2649-1178_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2649-1179_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2649-1180_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T03:02:27+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": [
   "2647-1178",
   "2647-1179",
   "2648-1178",
   "2648-1179",
   "2648-1180",
   "2649-1178",
   "2649-1179",
   "2649-1180"
  ],
  "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": "Hofstetten bei Brienz",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}