{
 "ocl_version": "0.1.0",
 "name": "Gafadurastrasse",
 "slug": "gafadurastrasse",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 17.60206652837155,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1009.0,
   "end_distance_m": 1011.0,
   "start_elevation_m": 876.4492106038555,
   "end_elevation_m": 876.8012519344229,
   "min_gradient_pct": 4.636969764715104
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 16.893722910439617,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1050.0,
   "end_distance_m": 1053.0,
   "start_elevation_m": 882.3674827901201,
   "end_elevation_m": 882.8742944774333,
   "min_gradient_pct": 5.004339343804531
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 16.485043103837143,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1198.0,
   "end_distance_m": 1203.0,
   "start_elevation_m": 903.1827267680316,
   "end_elevation_m": 904.0069789232234,
   "min_gradient_pct": 6.128283971329438
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 16.336990897500527,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1198.0,
   "end_distance_m": 1208.0,
   "start_elevation_m": 903.1827267680316,
   "end_elevation_m": 904.8164258577816,
   "min_gradient_pct": 6.85045542571288
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 15.9203170460205,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1191.0,
   "end_distance_m": 1211.0,
   "start_elevation_m": 902.0773275980316,
   "end_elevation_m": 905.2613910072357,
   "min_gradient_pct": 7.173379152155235
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 15.70264282107064,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1187.0,
   "end_distance_m": 1212.0,
   "start_elevation_m": 901.4989764240731,
   "end_elevation_m": 905.4246371293408,
   "min_gradient_pct": 7.386922780558507
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.217349178167979,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1181.0,
   "end_distance_m": 1231.0,
   "start_elevation_m": 900.603948557006,
   "end_elevation_m": 908.21262314609,
   "min_gradient_pct": 7.816084977428318
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.796840576383602,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1181.0,
   "end_distance_m": 1281.0,
   "start_elevation_m": 900.603948557006,
   "end_elevation_m": 915.4007891333896,
   "min_gradient_pct": 8.835638047246562
  }
 ],
 "shape": {
  "ascent_concentration": 0.27,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 751.0,
  "shape_class": "sustained"
 },
 "length_m": 2039.2967352821688,
 "start_elevation_m": 747.7216676286835,
 "end_elevation_m": 1012.3871946606423,
 "endpoint_gain_m": 264.66552703195885,
 "overall_gradient_pct": 12.978274443975815,
 "accumulated_ascent_m": 264.66552703195885,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 16.485043103837143,
   "start_distance_m": 1198.0,
   "end_distance_m": 1203.0,
   "midpoint_distance_m": 1200.5,
   "start_elevation_m": 903.1827267680316,
   "end_elevation_m": 904.0069789232234,
   "start_xy": [
    2738049.4015433267,
    1217719.9665654663
   ],
   "end_xy": [
    2738044.441627851,
    1217719.3971256453
   ]
  },
  "max_10m": {
   "gradient_pct": 16.336990897500527,
   "start_distance_m": 1198.0,
   "end_distance_m": 1208.0,
   "midpoint_distance_m": 1203.0,
   "start_elevation_m": 903.1827267680316,
   "end_elevation_m": 904.8164258577816,
   "start_xy": [
    2738049.4015433267,
    1217719.9665654663
   ],
   "end_xy": [
    2738039.625488025,
    1217718.0560913188
   ]
  },
  "max_20m": {
   "gradient_pct": 15.9203170460205,
   "start_distance_m": 1191.0,
   "end_distance_m": 1211.0,
   "midpoint_distance_m": 1201.0,
   "start_elevation_m": 902.0773275980316,
   "end_elevation_m": 905.2613910072357,
   "start_xy": [
    2738056.381055705,
    1217720.173678842
   ],
   "end_xy": [
    2738036.856626027,
    1217716.901360513
   ]
  },
  "max_25m": {
   "gradient_pct": 15.70264282107064,
   "start_distance_m": 1187.0,
   "end_distance_m": 1212.0,
   "midpoint_distance_m": 1199.5,
   "start_elevation_m": 901.4989764240731,
   "end_elevation_m": 905.4246371293408,
   "start_xy": [
    2738060.376725758,
    1217719.987612118
   ],
   "end_xy": [
    2738035.933672027,
    1217716.5164502445
   ]
  },
  "max_50m": {
   "gradient_pct": 15.217349178167979,
   "start_distance_m": 1181.0,
   "end_distance_m": 1231.0,
   "midpoint_distance_m": 1206.0,
   "start_elevation_m": 900.603948557006,
   "end_elevation_m": 908.21262314609,
   "start_xy": [
    2738066.3320077704,
    1217719.2750079487
   ],
   "end_xy": [
    2738021.1922632633,
    1217704.8768667972
   ]
  },
  "max_100m": {
   "gradient_pct": 14.796840576383602,
   "start_distance_m": 1181.0,
   "end_distance_m": 1281.0,
   "midpoint_distance_m": 1231.0,
   "start_elevation_m": 900.603948557006,
   "end_elevation_m": 915.4007891333896,
   "start_xy": [
    2738066.3320077704,
    1217719.2750079487
   ],
   "end_xy": [
    2737997.3918608916,
    1217661.0302345578
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 6.128283971329438,
   "start_distance_m": 1992.0,
   "end_distance_m": 1997.0,
   "midpoint_distance_m": 1994.5,
   "start_elevation_m": 1008.60467068199,
   "end_elevation_m": 1008.9110848805565,
   "start_xy": [
    2737562.490425061,
    1217588.8383847869
   ],
   "end_xy": [
    2737558.225677333,
    1217586.3553054035
   ]
  },
  "min_10m": {
   "gradient_pct": 6.85045542571288,
   "start_distance_m": 1977.0,
   "end_distance_m": 1987.0,
   "midpoint_distance_m": 1982.0,
   "start_elevation_m": 1007.4764090501254,
   "end_elevation_m": 1008.1614545926967,
   "start_xy": [
    2737576.921464133,
    1217587.4383988127
   ],
   "end_xy": [
    2737567.360743005,
    1217589.697003192
   ]
  },
  "min_20m": {
   "gradient_pct": 7.173379152155235,
   "start_distance_m": 1977.0,
   "end_distance_m": 1997.0,
   "midpoint_distance_m": 1987.0,
   "start_elevation_m": 1007.4764090501254,
   "end_elevation_m": 1008.9110848805565,
   "start_xy": [
    2737576.921464133,
    1217587.4383988127
   ],
   "end_xy": [
    2737558.225677333,
    1217586.3553054035
   ]
  },
  "min_25m": {
   "gradient_pct": 7.386922780558507,
   "start_distance_m": 1974.0,
   "end_distance_m": 1999.0,
   "midpoint_distance_m": 1986.5,
   "start_elevation_m": 1007.2391637824182,
   "end_elevation_m": 1009.0858944775579,
   "start_xy": [
    2737579.4514776096,
    1217585.8509101328
   ],
   "end_xy": [
    2737556.653317882,
    1217585.1195182486
   ]
  },
  "min_50m": {
   "gradient_pct": 7.816084977428318,
   "start_distance_m": 913.0,
   "end_distance_m": 963.0,
   "midpoint_distance_m": 938.0,
   "start_elevation_m": 866.7024849681834,
   "end_elevation_m": 870.6105274568976,
   "start_xy": [
    2738314.05982429,
    1217673.9317647014
   ],
   "end_xy": [
    2738279.618223458,
    1217709.744328899
   ]
  },
  "min_100m": {
   "gradient_pct": 8.835638047246562,
   "start_distance_m": 869.0,
   "end_distance_m": 969.0,
   "midpoint_distance_m": 919.0,
   "start_elevation_m": 862.3597359880407,
   "end_elevation_m": 871.1953740352873,
   "start_xy": [
    2738336.667880402,
    1217697.6514841558
   ],
   "end_xy": [
    2738274.8931595036,
    1217713.3867263945
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 17.60206652837155,
   "start_distance_m": 1009.0,
   "end_distance_m": 1011.0,
   "midpoint_distance_m": 1010.0,
   "start_elevation_m": 876.4492106038555,
   "end_elevation_m": 876.8012519344229,
   "start_xy": [
    2738236.045714123,
    1217715.425653038
   ],
   "end_xy": [
    2738234.0730091585,
    1217715.0963581523
   ]
  },
  "max_3m": {
   "gradient_pct": 16.893722910439617,
   "start_distance_m": 1050.0,
   "end_distance_m": 1053.0,
   "midpoint_distance_m": 1051.5,
   "start_elevation_m": 882.3674827901201,
   "end_elevation_m": 882.8742944774333,
   "start_xy": [
    2738195.520087014,
    1217709.2339308255
   ],
   "end_xy": [
    2738192.5482413964,
    1217708.8238898213
   ]
  }
 },
 "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_2019_2737-1217_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2019_2738-1217_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2019_2738-1218_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:33:19+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": [
   "2737-1217",
   "2738-1217",
   "2738-1218"
  ],
  "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": "Quarten",
  "county": "St. Gallen",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}