{
 "ocl_version": "0.1.0",
 "name": "Heiggenstrasse",
 "slug": "heiggenstrasse",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.893153700839775,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 482.0,
   "end_distance_m": 484.0,
   "start_elevation_m": 1341.1860663208088,
   "end_elevation_m": 1341.6639293948256,
   "min_gradient_pct": 1.3218371320363076
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.57347050795791,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 470.0,
   "end_distance_m": 473.0,
   "start_elevation_m": 1338.7475841151067,
   "end_elevation_m": 1339.4247882303455,
   "min_gradient_pct": 4.017053871317937
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.062804794927615,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 472.0,
   "end_distance_m": 477.0,
   "start_elevation_m": 1339.145001881727,
   "end_elevation_m": 1340.2481421214734,
   "min_gradient_pct": 4.2287401409112135
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.15261012410201,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 470.0,
   "end_distance_m": 480.0,
   "start_elevation_m": 1338.7475841151067,
   "end_elevation_m": 1340.862845127517,
   "min_gradient_pct": 4.688244676838167
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.639933850713987,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 461.0,
   "end_distance_m": 481.0,
   "start_elevation_m": 1336.9416820685876,
   "end_elevation_m": 1341.0696688387304,
   "min_gradient_pct": 4.8522625874591085
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.398251256542608,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 461.0,
   "end_distance_m": 486.0,
   "start_elevation_m": 1336.9416820685876,
   "end_elevation_m": 1342.0412448827233,
   "min_gradient_pct": 4.985239634625941
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.883058229759172,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 431.0,
   "end_distance_m": 481.0,
   "start_elevation_m": 1331.1281397238508,
   "end_elevation_m": 1341.0696688387304,
   "min_gradient_pct": 5.2055532468998535
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.257376203376907,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 389.0,
   "end_distance_m": 489.0,
   "start_elevation_m": 1324.3427018262287,
   "end_elevation_m": 1342.6000780296056,
   "min_gradient_pct": 6.474852343668999
  }
 ],
 "shape": {
  "ascent_concentration": 0.357,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 204.0,
  "shape_class": "sustained"
 },
 "length_m": 491.0709669375525,
 "start_elevation_m": 1281.7195792870968,
 "end_elevation_m": 1342.9054113574182,
 "endpoint_gain_m": 61.18583207032134,
 "overall_gradient_pct": 12.45967206163546,
 "accumulated_ascent_m": 61.24429860205214,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.062804794927615,
   "start_distance_m": 472.0,
   "end_distance_m": 477.0,
   "midpoint_distance_m": 474.5,
   "start_elevation_m": 1339.145001881727,
   "end_elevation_m": 1340.2481421214734,
   "start_xy": [
    2731891.3189945947,
    1223718.2696925304
   ],
   "end_xy": [
    2731891.1781316292,
    1223723.2230091195
   ]
  },
  "max_10m": {
   "gradient_pct": 21.15261012410201,
   "start_distance_m": 470.0,
   "end_distance_m": 480.0,
   "midpoint_distance_m": 475.0,
   "start_elevation_m": 1338.7475841151067,
   "end_elevation_m": 1340.862845127517,
   "start_xy": [
    2731891.0298979557,
    1223716.2906970445
   ],
   "end_xy": [
    2731890.784588986,
    1223726.1970844695
   ]
  },
  "max_20m": {
   "gradient_pct": 20.639933850713987,
   "start_distance_m": 461.0,
   "end_distance_m": 481.0,
   "midpoint_distance_m": 471.0,
   "start_elevation_m": 1336.9416820685876,
   "end_elevation_m": 1341.0696688387304,
   "start_xy": [
    2731889.4137378223,
    1223707.4409485254
   ],
   "end_xy": [
    2731890.6534081055,
    1223727.1884429196
   ]
  },
  "max_25m": {
   "gradient_pct": 20.398251256542608,
   "start_distance_m": 461.0,
   "end_distance_m": 486.0,
   "midpoint_distance_m": 473.5,
   "start_elevation_m": 1336.9416820685876,
   "end_elevation_m": 1342.0412448827233,
   "start_xy": [
    2731889.4137378223,
    1223707.4409485254
   ],
   "end_xy": [
    2731889.4884589105,
    1223732.0165652616
   ]
  },
  "max_50m": {
   "gradient_pct": 19.883058229759172,
   "start_distance_m": 431.0,
   "end_distance_m": 481.0,
   "midpoint_distance_m": 456.0,
   "start_elevation_m": 1331.1281397238508,
   "end_elevation_m": 1341.0696688387304,
   "start_xy": [
    2731888.9651160114,
    1223677.8149037526
   ],
   "end_xy": [
    2731890.6534081055,
    1223727.1884429196
   ]
  },
  "max_100m": {
   "gradient_pct": 18.257376203376907,
   "start_distance_m": 389.0,
   "end_distance_m": 489.0,
   "midpoint_distance_m": 439.0,
   "start_elevation_m": 1324.3427018262287,
   "end_elevation_m": 1342.6000780296056,
   "start_xy": [
    2731878.5469956757,
    1223639.64641459
   ],
   "end_xy": [
    2731888.4215269433,
    1223734.820429769
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 4.2287401409112135,
   "start_distance_m": 140.0,
   "end_distance_m": 145.0,
   "midpoint_distance_m": 142.5,
   "start_elevation_m": 1297.2706541080108,
   "end_elevation_m": 1297.4820911150564,
   "start_xy": [
    2731734.5933127124,
    1223455.9660809808
   ],
   "end_xy": [
    2731736.2157202726,
    1223460.695541173
   ]
  },
  "min_10m": {
   "gradient_pct": 4.688244676838167,
   "start_distance_m": 167.0,
   "end_distance_m": 177.0,
   "midpoint_distance_m": 172.0,
   "start_elevation_m": 1298.667714960137,
   "end_elevation_m": 1299.1365394278207,
   "start_xy": [
    2731740.910867986,
    1223482.1608714284
   ],
   "end_xy": [
    2731743.221616691,
    1223491.888263941
   ]
  },
  "min_20m": {
   "gradient_pct": 4.8522625874591085,
   "start_distance_m": 157.0,
   "end_distance_m": 177.0,
   "midpoint_distance_m": 167.0,
   "start_elevation_m": 1298.1660869103289,
   "end_elevation_m": 1299.1365394278207,
   "start_xy": [
    2731738.984110357,
    1223472.34824665
   ],
   "end_xy": [
    2731743.221616691,
    1223491.888263941
   ]
  },
  "min_25m": {
   "gradient_pct": 4.985239634625941,
   "start_distance_m": 152.0,
   "end_distance_m": 177.0,
   "midpoint_distance_m": 164.5,
   "start_elevation_m": 1297.8902295191642,
   "end_elevation_m": 1299.1365394278207,
   "start_xy": [
    2731738.0207315423,
    1223467.441934261
   ],
   "end_xy": [
    2731743.221616691,
    1223491.888263941
   ]
  },
  "min_50m": {
   "gradient_pct": 5.2055532468998535,
   "start_distance_m": 137.0,
   "end_distance_m": 187.0,
   "midpoint_distance_m": 162.0,
   "start_elevation_m": 1297.0908096229884,
   "end_elevation_m": 1299.6935862464384,
   "start_xy": [
    2731733.619868176,
    1223453.1284048655
   ],
   "end_xy": [
    2731745.6273627095,
    1223501.5945704526
   ]
  },
  "min_100m": {
   "gradient_pct": 6.474852343668999,
   "start_distance_m": 129.0,
   "end_distance_m": 229.0,
   "midpoint_distance_m": 179.0,
   "start_elevation_m": 1296.5325255384237,
   "end_elevation_m": 1303.0073778820927,
   "start_xy": [
    2731731.0240160795,
    1223445.5612685583
   ],
   "end_xy": [
    2731772.175841688,
    1223532.7021353722
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.893153700839775,
   "start_distance_m": 482.0,
   "end_distance_m": 484.0,
   "midpoint_distance_m": 483.0,
   "start_elevation_m": 1341.1860663208088,
   "end_elevation_m": 1341.6639293948256,
   "start_xy": [
    2731890.5222272244,
    1223728.1798013698
   ],
   "end_xy": [
    2731890.1997468886,
    1223730.1473222566
   ]
  },
  "max_3m": {
   "gradient_pct": 22.57347050795791,
   "start_distance_m": 470.0,
   "end_distance_m": 473.0,
   "midpoint_distance_m": 471.5,
   "start_elevation_m": 1338.7475841151067,
   "end_elevation_m": 1339.4247882303455,
   "start_xy": [
    2731891.0298979557,
    1223716.2906970445
   ],
   "end_xy": [
    2731891.4635429145,
    1223719.2591902732
   ]
  }
 },
 "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_2020_2731-1223_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T03:35:35+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": [
   "2731-1223"
  ],
  "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": "Amden",
  "county": "St. Gallen",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}