{
 "ocl_version": "0.1.0",
 "name": "Via da Ruschein",
 "slug": "via-da-ruschein",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 18.535872745661663,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1165.0,
   "end_distance_m": 1167.0,
   "start_elevation_m": 840.6630553751104,
   "end_elevation_m": 841.0337728300236,
   "min_gradient_pct": -0.5597800572331835
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 18.315683736405692,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1019.0,
   "end_distance_m": 1022.0,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 822.1843322133525,
   "min_gradient_pct": 0.2708564846291968
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 18.13391899696626,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1019.0,
   "end_distance_m": 1024.0,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 822.5415576511086,
   "min_gradient_pct": 0.4755602840305073
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 16.96557639759817,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1019.0,
   "end_distance_m": 1029.0,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 823.3314193410201,
   "min_gradient_pct": 0.7856320026712638
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 14.981641472319893,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1019.0,
   "end_distance_m": 1039.0,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 824.6311899957243,
   "min_gradient_pct": 2.875398940046807
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.59290384973474,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1019.0,
   "end_distance_m": 1044.0,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 825.283087663694,
   "min_gradient_pct": 3.6064374285924714
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.668275374328005,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 902.0,
   "end_distance_m": 952.0,
   "start_elevation_m": 806.58185495817,
   "end_elevation_m": 813.415992645334,
   "min_gradient_pct": 4.180370782893533
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.267328134412537,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 853.0,
   "end_distance_m": 953.0,
   "start_elevation_m": 800.2744573380166,
   "end_elevation_m": 813.5417854724292,
   "min_gradient_pct": 5.158856515562775
  }
 ],
 "shape": {
  "ascent_concentration": 0.268,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 1501.0,
  "shape_class": "sustained"
 },
 "length_m": 3793.9323105691215,
 "start_elevation_m": 705.0098067236406,
 "end_elevation_m": 1148.1690922851712,
 "endpoint_gain_m": 443.1592855615306,
 "overall_gradient_pct": 11.68073780143571,
 "accumulated_ascent_m": 443.190903448919,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 18.13391899696626,
   "start_distance_m": 1019.0,
   "end_distance_m": 1024.0,
   "midpoint_distance_m": 1021.5,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 822.5415576511086,
   "start_xy": [
    2734338.369276863,
    1182301.3689988668
   ],
   "end_xy": [
    2734340.4957966297,
    1182305.893444836
   ]
  },
  "max_10m": {
   "gradient_pct": 16.96557639759817,
   "start_distance_m": 1019.0,
   "end_distance_m": 1029.0,
   "midpoint_distance_m": 1024.0,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 823.3314193410201,
   "start_xy": [
    2734338.369276863,
    1182301.3689988668
   ],
   "end_xy": [
    2734342.5246611745,
    1182310.4633144904
   ]
  },
  "max_20m": {
   "gradient_pct": 14.981641472319893,
   "start_distance_m": 1019.0,
   "end_distance_m": 1039.0,
   "midpoint_distance_m": 1029.0,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 824.6311899957243,
   "start_xy": [
    2734338.369276863,
    1182301.3689988668
   ],
   "end_xy": [
    2734346.7689472553,
    1182319.5033169356
   ]
  },
  "max_25m": {
   "gradient_pct": 14.59290384973474,
   "start_distance_m": 1019.0,
   "end_distance_m": 1044.0,
   "midpoint_distance_m": 1031.5,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 825.283087663694,
   "start_xy": [
    2734338.369276863,
    1182301.3689988668
   ],
   "end_xy": [
    2734349.4421855444,
    1182323.728692309
   ]
  },
  "max_50m": {
   "gradient_pct": 13.668275374328005,
   "start_distance_m": 902.0,
   "end_distance_m": 952.0,
   "midpoint_distance_m": 927.0,
   "start_elevation_m": 806.58185495817,
   "end_elevation_m": 813.415992645334,
   "start_xy": [
    2734241.954615067,
    1182243.9439550503
   ],
   "end_xy": [
    2734286.4329816005,
    1182266.615750249
   ]
  },
  "max_100m": {
   "gradient_pct": 13.267328134412537,
   "start_distance_m": 853.0,
   "end_distance_m": 953.0,
   "midpoint_distance_m": 903.0,
   "start_elevation_m": 800.2744573380166,
   "end_elevation_m": 813.5417854724292,
   "start_xy": [
    2734205.0477993325,
    1182212.470833945
   ],
   "end_xy": [
    2734287.4081377415,
    1182266.8372688722
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.4755602840305073,
   "start_distance_m": 5.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 7.5,
   "start_elevation_m": 705.0645919097062,
   "end_elevation_m": 705.0883699239077,
   "start_xy": [
    2734458.9638972008,
    1181978.1433845665
   ],
   "end_xy": [
    2734454.137993884,
    1181979.4154616492
   ]
  },
  "min_10m": {
   "gradient_pct": 0.7856320026712638,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 705.0098067236406,
   "end_elevation_m": 705.0883699239077,
   "start_xy": [
    2734463.769,
    1181976.761
   ],
   "end_xy": [
    2734454.137993884,
    1181979.4154616492
   ]
  },
  "min_20m": {
   "gradient_pct": 2.875398940046807,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 705.0098067236406,
   "end_elevation_m": 705.58488651165,
   "start_xy": [
    2734463.769,
    1181976.761
   ],
   "end_xy": [
    2734444.1701214877,
    1181980.154075977
   ]
  },
  "min_25m": {
   "gradient_pct": 3.6064374285924714,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 705.0098067236406,
   "end_elevation_m": 705.9114160807887,
   "start_xy": [
    2734463.769,
    1181976.761
   ],
   "end_xy": [
    2734439.1713924925,
    1181980.2668076674
   ]
  },
  "min_50m": {
   "gradient_pct": 4.180370782893533,
   "start_distance_m": 3743.0,
   "end_distance_m": 3793.0,
   "midpoint_distance_m": 3768.0,
   "start_elevation_m": 1146.0390891566203,
   "end_elevation_m": 1148.129274548067,
   "start_xy": [
    2733932.476774534,
    1182909.7301847432
   ],
   "end_xy": [
    2733905.965107218,
    1182950.9947226834
   ]
  },
  "min_100m": {
   "gradient_pct": 5.158856515562775,
   "start_distance_m": 3693.0,
   "end_distance_m": 3793.0,
   "midpoint_distance_m": 3743.0,
   "start_elevation_m": 1142.9704180325043,
   "end_elevation_m": 1148.129274548067,
   "start_xy": [
    2733972.810479459,
    1182880.7329724575
   ],
   "end_xy": [
    2733905.965107218,
    1182950.9947226834
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 18.535872745661663,
   "start_distance_m": 1165.0,
   "end_distance_m": 1167.0,
   "midpoint_distance_m": 1166.0,
   "start_elevation_m": 840.6630553751104,
   "end_elevation_m": 841.0337728300236,
   "start_xy": [
    2734459.241620051,
    1182364.280609379
   ],
   "end_xy": [
    2734461.23824943,
    1182364.1645442105
   ]
  },
  "max_3m": {
   "gradient_pct": 18.315683736405692,
   "start_distance_m": 1019.0,
   "end_distance_m": 1022.0,
   "midpoint_distance_m": 1020.5,
   "start_elevation_m": 821.6348617012603,
   "end_elevation_m": 822.1843322133525,
   "start_xy": [
    2734338.369276863,
    1182301.3689988668
   ],
   "end_xy": [
    2734339.6820743415,
    1182304.066509345
   ]
  }
 },
 "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": []
 },
 "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_2733-1181_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2733-1182_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2734-1181_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2734-1182_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:33:49+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": [
   "2733-1181",
   "2733-1182",
   "2734-1181",
   "2734-1182"
  ],
  "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": "Ilanz/Glion",
  "county": "Graub\u00fcnden/Grischun/Grigioni",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}