{
 "ocl_version": "0.1.0",
 "name": "B\u00fcelstrasse",
 "slug": "buelstrasse-4",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 16.936814116746746,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2086.0,
   "end_distance_m": 2088.0,
   "start_elevation_m": 849.5929977961049,
   "end_elevation_m": 849.9317340784398,
   "min_gradient_pct": -406.6792024787958,
   "suppressed_max_gradient_pct": 303.10549133084237,
   "suppressed_location_m": [
    1387.0,
    1389.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 16.914871453108542,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2084.0,
   "end_distance_m": 2087.0,
   "start_elevation_m": 849.2630888992877,
   "end_elevation_m": 849.770535042881,
   "min_gradient_pct": -310.16389398884786,
   "suppressed_max_gradient_pct": 271.6894145256333,
   "suppressed_location_m": [
    1386.0,
    1389.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 16.723609176153786,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2084.0,
   "end_distance_m": 2089.0,
   "start_elevation_m": 849.2630888992877,
   "end_elevation_m": 850.0992693580954,
   "min_gradient_pct": -190.820293729671,
   "suppressed_max_gradient_pct": 179.54657721804324,
   "suppressed_location_m": [
    1386.0,
    1391.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 16.137794811950243,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2082.0,
   "end_distance_m": 2092.0,
   "start_elevation_m": 848.9605893887664,
   "end_elevation_m": 850.5743688699614,
   "min_gradient_pct": -88.37183256827188,
   "suppressed_max_gradient_pct": 107.19511333242167,
   "suppressed_location_m": [
    1386.0,
    1396.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 15.553173178398652,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2081.0,
   "end_distance_m": 2101.0,
   "start_elevation_m": 848.8212654317391,
   "end_elevation_m": 851.9319000674188,
   "min_gradient_pct": -37.373522347268135,
   "suppressed_max_gradient_pct": 60.37448667019987,
   "suppressed_location_m": [
    1380.0,
    1400.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.815978009745777,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2080.0,
   "end_distance_m": 2105.0,
   "start_elevation_m": 848.6939505553732,
   "end_elevation_m": 852.3979450578097,
   "min_gradient_pct": -27.19243827408991,
   "suppressed_max_gradient_pct": 49.86382695973407,
   "suppressed_location_m": [
    1375.0,
    1400.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.455434441488933,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1414.0,
   "end_distance_m": 1464.0,
   "start_elevation_m": 786.3135474364241,
   "end_elevation_m": 793.0412646571685,
   "min_gradient_pct": -6.911412987461745,
   "suppressed_max_gradient_pct": 29.114604830426742,
   "suppressed_location_m": [
    1350.0,
    1400.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 12.310417859437052,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1204.0,
   "end_distance_m": 1304.0,
   "start_elevation_m": 762.5110070619147,
   "end_elevation_m": 774.8214249213518,
   "min_gradient_pct": 1.5756959388826317,
   "suppressed_max_gradient_pct": 20.294735964022493,
   "suppressed_location_m": [
    1300.0,
    1400.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.299,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 175.0,
  "shape_class": "sustained"
 },
 "length_m": 2146.5609433798018,
 "start_elevation_m": 638.5693399599602,
 "end_elevation_m": 856.0070265825244,
 "endpoint_gain_m": 217.43768662256423,
 "overall_gradient_pct": 10.129583662330331,
 "accumulated_ascent_m": 226.97870130904778,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 16.723609176153786,
   "start_distance_m": 2084.0,
   "end_distance_m": 2089.0,
   "midpoint_distance_m": 2086.5,
   "start_elevation_m": 849.2630888992877,
   "end_elevation_m": 850.0992693580954,
   "start_xy": [
    2725935.354508946,
    1241029.7473534874
   ],
   "end_xy": [
    2725935.667809634,
    1241034.7375281015
   ]
  },
  "max_10m": {
   "gradient_pct": 16.137794811950243,
   "start_distance_m": 2082.0,
   "end_distance_m": 2092.0,
   "midpoint_distance_m": 2087.0,
   "start_elevation_m": 848.9605893887664,
   "end_elevation_m": 850.5743688699614,
   "start_xy": [
    2725935.2291886713,
    1241027.751283642
   ],
   "end_xy": [
    2725935.738121275,
    1241037.7233016912
   ]
  },
  "max_20m": {
   "gradient_pct": 15.553173178398652,
   "start_distance_m": 2081.0,
   "end_distance_m": 2101.0,
   "midpoint_distance_m": 2091.0,
   "start_elevation_m": 848.8212654317391,
   "end_elevation_m": 851.9319000674188,
   "start_xy": [
    2725935.1665285337,
    1241026.753248719
   ],
   "end_xy": [
    2725932.2494213553,
    1241045.7982466905
   ]
  },
  "max_25m": {
   "gradient_pct": 14.815978009745777,
   "start_distance_m": 2080.0,
   "end_distance_m": 2105.0,
   "midpoint_distance_m": 2092.5,
   "start_elevation_m": 848.6939505553732,
   "end_elevation_m": 852.3979450578097,
   "start_xy": [
    2725935.1038683965,
    1241025.7552137962
   ],
   "end_xy": [
    2725928.8516918086,
    1241047.909036573
   ]
  },
  "max_50m": {
   "gradient_pct": 13.455434441488933,
   "start_distance_m": 1414.0,
   "end_distance_m": 1464.0,
   "midpoint_distance_m": 1439.0,
   "start_elevation_m": 786.3135474364241,
   "end_elevation_m": 793.0412646571685,
   "start_xy": [
    2725500.9972932357,
    1240885.763747615
   ],
   "end_xy": [
    2725478.10662402,
    1240841.3173746208
   ]
  },
  "max_100m": {
   "gradient_pct": 12.310417859437052,
   "start_distance_m": 1204.0,
   "end_distance_m": 1304.0,
   "midpoint_distance_m": 1254.0,
   "start_elevation_m": 762.5110070619147,
   "end_elevation_m": 774.8214249213518,
   "start_xy": [
    2725355.692889835,
    1240844.6703861565
   ],
   "end_xy": [
    2725450.057856207,
    1240876.8004683077
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -190.820293729671,
   "start_distance_m": 1400.0,
   "end_distance_m": 1405.0,
   "midpoint_distance_m": 1402.5,
   "start_elevation_m": 794.6116933977335,
   "end_elevation_m": 785.0706787112499,
   "start_xy": [
    2725506.293034349,
    1240898.6463062337
   ],
   "end_xy": [
    2725504.90953065,
    1240893.8609886372
   ]
  },
  "min_10m": {
   "gradient_pct": -88.37183256827188,
   "start_distance_m": 1400.0,
   "end_distance_m": 1410.0,
   "midpoint_distance_m": 1405.0,
   "start_elevation_m": 794.6116933977335,
   "end_elevation_m": 785.7745101409063,
   "start_xy": [
    2725506.293034349,
    1240898.6463062337
   ],
   "end_xy": [
    2725502.7779179895,
    1240889.3455593754
   ]
  },
  "min_20m": {
   "gradient_pct": -37.373522347268135,
   "start_distance_m": 1400.0,
   "end_distance_m": 1420.0,
   "midpoint_distance_m": 1410.0,
   "start_elevation_m": 794.6116933977335,
   "end_elevation_m": 787.1369889282798,
   "start_xy": [
    2725506.293034349,
    1240898.6463062337
   ],
   "end_xy": [
    2725498.3021171256,
    1240880.4032610042
   ]
  },
  "min_25m": {
   "gradient_pct": -27.19243827408991,
   "start_distance_m": 1400.0,
   "end_distance_m": 1425.0,
   "midpoint_distance_m": 1412.5,
   "start_elevation_m": 794.6116933977335,
   "end_elevation_m": 787.813583829211,
   "start_xy": [
    2725506.293034349,
    1240898.6463062337
   ],
   "end_xy": [
    2725496.0230064904,
    1240875.9529065564
   ]
  },
  "min_50m": {
   "gradient_pct": -6.911412987461745,
   "start_distance_m": 1399.0,
   "end_distance_m": 1449.0,
   "midpoint_distance_m": 1424.0,
   "start_elevation_m": 794.4774635627886,
   "end_elevation_m": 791.0217570690577,
   "start_xy": [
    2725506.301798502,
    1240899.6462678278
   ],
   "end_xy": [
    2725485.201747221,
    1240854.5311331085
   ]
  },
  "min_100m": {
   "gradient_pct": 1.5756959388826317,
   "start_distance_m": 1400.0,
   "end_distance_m": 1500.0,
   "midpoint_distance_m": 1450.0,
   "start_elevation_m": 794.6116933977335,
   "end_elevation_m": 796.1873893366161,
   "start_xy": [
    2725506.293034349,
    1240898.6463062337
   ],
   "end_xy": [
    2725487.8872762267,
    1240810.991918088
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 16.936814116746746,
   "start_distance_m": 2086.0,
   "end_distance_m": 2088.0,
   "midpoint_distance_m": 2087.0,
   "start_elevation_m": 849.5929977961049,
   "end_elevation_m": 849.9317340784398,
   "start_xy": [
    2725935.4798292215,
    1241031.7434233332
   ],
   "end_xy": [
    2725935.6051494963,
    1241033.7394931787
   ]
  },
  "max_3m": {
   "gradient_pct": 16.914871453108542,
   "start_distance_m": 2084.0,
   "end_distance_m": 2087.0,
   "midpoint_distance_m": 2085.5,
   "start_elevation_m": 849.2630888992877,
   "end_elevation_m": 849.770535042881,
   "start_xy": [
    2725935.354508946,
    1241029.7473534874
   ],
   "end_xy": [
    2725935.5424893587,
    1241032.741458256
   ]
  }
 },
 "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": 0.014,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    1380.0,
    1410.0
   ]
  ],
  "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_2020_2724-1240_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2724-1241_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2725-1240_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2725-1241_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:55:49+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": [
   "2724-1240",
   "2724-1241",
   "2725-1240",
   "2725-1241"
  ],
  "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": "Wattwil",
  "county": "St. Gallen",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}