{
 "ocl_version": "0.1.0",
 "name": "Ledigasse",
 "slug": "ledigasse-2",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.051048640276804,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1529.0,
   "end_distance_m": 1531.0,
   "start_elevation_m": 602.1832322601142,
   "end_elevation_m": 603.1042532329197,
   "min_gradient_pct": -54.809016213010864,
   "suppressed_max_gradient_pct": 169.30429131430742,
   "suppressed_location_m": [
    2358.0,
    2360.0
   ],
   "suppressed_min_gradient_pct": -113.50977837576579,
   "suppressed_min_location_m": [
    2333.0,
    2335.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.70293944894835,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 2228.0,
   "end_distance_m": 2231.0,
   "start_elevation_m": 676.3474887243027,
   "end_elevation_m": 677.5085769077712,
   "min_gradient_pct": -44.06816323083831,
   "suppressed_max_gradient_pct": 165.1777752617439,
   "suppressed_location_m": [
    2357.0,
    2360.0
   ],
   "suppressed_min_gradient_pct": -92.28761777145564,
   "suppressed_min_location_m": [
    2333.0,
    2336.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.98813196172796,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_unresolved"
   ],
   "start_distance_m": 2227.0,
   "end_distance_m": 2232.0,
   "start_elevation_m": 676.1300118393274,
   "end_elevation_m": 677.5794184374138,
   "min_gradient_pct": -31.927948485631532,
   "suppressed_max_gradient_pct": 142.3905166847635,
   "suppressed_location_m": [
    2357.0,
    2362.0
   ],
   "suppressed_min_gradient_pct": -81.89678218663175,
   "suppressed_min_location_m": [
    2333.0,
    2338.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.81607729867642,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 897.0,
   "end_distance_m": 907.0,
   "start_elevation_m": 529.9630234114654,
   "end_elevation_m": 532.0446311413331,
   "min_gradient_pct": -10.879024466956935,
   "suppressed_max_gradient_pct": 77.8080703099647,
   "suppressed_location_m": [
    2356.0,
    2366.0
   ],
   "suppressed_min_gradient_pct": -59.73445437921896,
   "suppressed_min_location_m": [
    2333.0,
    2343.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.785044924904355,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded_min",
    "texture_excluded"
   ],
   "start_distance_m": 890.0,
   "end_distance_m": 910.0,
   "start_elevation_m": 528.624837734886,
   "end_elevation_m": 532.3818467198669,
   "min_gradient_pct": -0.32813177859054576,
   "suppressed_max_gradient_pct": 47.44029678314405,
   "suppressed_location_m": [
    2345.0,
    2365.0
   ],
   "suppressed_min_gradient_pct": -26.68339131562675,
   "suppressed_min_location_m": [
    2325.0,
    2345.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 15.855745687404578,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded_min",
    "texture_excluded",
    "texture_excluded_min",
    "texture_excluded"
   ],
   "start_distance_m": 883.0,
   "end_distance_m": 908.0,
   "start_elevation_m": 528.2417292096973,
   "end_elevation_m": 532.2056656315484,
   "min_gradient_pct": 1.4425837518451772,
   "suppressed_max_gradient_pct": 39.72679276391818,
   "suppressed_location_m": [
    2345.0,
    2370.0
   ],
   "suppressed_min_gradient_pct": -19.853846574043928,
   "suppressed_min_location_m": [
    2320.0,
    2345.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.083805307117473,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 495.0,
   "end_distance_m": 545.0,
   "start_elevation_m": 479.70527259989365,
   "end_elevation_m": 487.2471752534524,
   "min_gradient_pct": 3.7905342526249797,
   "suppressed_max_gradient_pct": 25.532985435851288,
   "suppressed_location_m": [
    2345.0,
    2395.0
   ],
   "suppressed_min_gradient_pct": -5.001536797147537,
   "suppressed_min_location_m": [
    2295.0,
    2345.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.297010196344559,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 471.0,
   "end_distance_m": 571.0,
   "start_elevation_m": 476.6712074831209,
   "end_elevation_m": 490.96821767946545,
   "min_gradient_pct": 4.128383374164855,
   "suppressed_max_gradient_pct": 18.690656500585305,
   "suppressed_location_m": [
    2345.0,
    2445.0
   ],
   "suppressed_min_gradient_pct": 2.1735197254087097,
   "suppressed_min_location_m": [
    2244.0,
    2344.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.269,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 398.0,
  "shape_class": "sustained"
 },
 "length_m": 2820.1892276712533,
 "start_elevation_m": 432.7875414716717,
 "end_elevation_m": 746.0017140039416,
 "endpoint_gain_m": 313.2141725322699,
 "overall_gradient_pct": 11.106140306439784,
 "accumulated_ascent_m": 340.7965673950185,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.98813196172796,
   "start_distance_m": 2227.0,
   "end_distance_m": 2232.0,
   "midpoint_distance_m": 2229.5,
   "start_elevation_m": 676.1300118393274,
   "end_elevation_m": 677.5794184374138,
   "start_xy": [
    2722964.2813282316,
    1223262.3968529094
   ],
   "end_xy": [
    2722962.801345565,
    1223257.620908832
   ]
  },
  "max_10m": {
   "gradient_pct": 20.81607729867642,
   "start_distance_m": 897.0,
   "end_distance_m": 907.0,
   "midpoint_distance_m": 902.0,
   "start_elevation_m": 529.9630234114654,
   "end_elevation_m": 532.0446311413331,
   "start_xy": [
    2723070.0637532175,
    1224537.627200319
   ],
   "end_xy": [
    2723073.590290679,
    1224528.2713526867
   ]
  },
  "max_20m": {
   "gradient_pct": 18.785044924904355,
   "start_distance_m": 890.0,
   "end_distance_m": 910.0,
   "midpoint_distance_m": 900.0,
   "start_elevation_m": 528.624837734886,
   "end_elevation_m": 532.3818467198669,
   "start_xy": [
    2723067.806705619,
    1224544.2533398708
   ],
   "end_xy": [
    2723074.681482764,
    1224525.4768408348
   ]
  },
  "max_25m": {
   "gradient_pct": 15.855745687404578,
   "start_distance_m": 883.0,
   "end_distance_m": 908.0,
   "midpoint_distance_m": 895.5,
   "start_elevation_m": 528.2417292096973,
   "end_elevation_m": 532.2056656315484,
   "start_xy": [
    2723065.548762284,
    1224550.8791737354
   ],
   "end_xy": [
    2723073.9544259803,
    1224527.3400066271
   ]
  },
  "max_50m": {
   "gradient_pct": 15.083805307117473,
   "start_distance_m": 495.0,
   "end_distance_m": 545.0,
   "midpoint_distance_m": 520.0,
   "start_elevation_m": 479.70527259989365,
   "end_elevation_m": 487.2471752534524,
   "start_xy": [
    2722834.1177169313,
    1224566.452798037
   ],
   "end_xy": [
    2722882.330189365,
    1224553.2066823435
   ]
  },
  "max_100m": {
   "gradient_pct": 14.297010196344559,
   "start_distance_m": 471.0,
   "end_distance_m": 571.0,
   "midpoint_distance_m": 521.0,
   "start_elevation_m": 476.6712074831209,
   "end_elevation_m": 490.96821767946545,
   "start_xy": [
    2722810.3919397322,
    1224569.2991299126
   ],
   "end_xy": [
    2722907.925208487,
    1224551.979408359
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -31.927948485631532,
   "start_distance_m": 1540.0,
   "end_distance_m": 1545.0,
   "midpoint_distance_m": 1542.5,
   "start_elevation_m": 603.7347782908353,
   "end_elevation_m": 602.1383808665537,
   "start_xy": [
    2722969.4927308215,
    1223932.284118997
   ],
   "end_xy": [
    2722966.718107732,
    1223928.1246166665
   ]
  },
  "min_10m": {
   "gradient_pct": -10.879024466956935,
   "start_distance_m": 1535.0,
   "end_distance_m": 1545.0,
   "midpoint_distance_m": 1540.0,
   "start_elevation_m": 603.2262833132494,
   "end_elevation_m": 602.1383808665537,
   "start_xy": [
    2722972.2666931543,
    1223936.444062531
   ],
   "end_xy": [
    2722966.718107732,
    1223928.1246166665
   ]
  },
  "min_20m": {
   "gradient_pct": -0.32813177859054576,
   "start_distance_m": 1258.0,
   "end_distance_m": 1278.0,
   "midpoint_distance_m": 1268.0,
   "start_elevation_m": 572.4713409248795,
   "end_elevation_m": 572.4057145691614,
   "start_xy": [
    2723079.0102924746,
    1224180.8295376895
   ],
   "end_xy": [
    2723075.8571554436,
    1224161.552367351
   ]
  },
  "min_25m": {
   "gradient_pct": 1.4425837518451772,
   "start_distance_m": 1818.0,
   "end_distance_m": 1843.0,
   "midpoint_distance_m": 1830.5,
   "start_elevation_m": 637.3251706797967,
   "end_elevation_m": 637.685816617758,
   "start_xy": [
    2722944.2751398263,
    1223662.371111768
   ],
   "end_xy": [
    2722937.9522742555,
    1223638.2315212577
   ]
  },
  "min_50m": {
   "gradient_pct": 3.7905342526249797,
   "start_distance_m": 37.0,
   "end_distance_m": 87.0,
   "midpoint_distance_m": 62.0,
   "start_elevation_m": 434.21503975120413,
   "end_elevation_m": 436.1103068775166,
   "start_xy": [
    2722420.842195043,
    1224616.9368490945
   ],
   "end_xy": [
    2722464.7652457077,
    1224593.9349134944
   ]
  },
  "min_100m": {
   "gradient_pct": 4.128383374164855,
   "start_distance_m": 21.0,
   "end_distance_m": 121.0,
   "midpoint_distance_m": 71.0,
   "start_elevation_m": 433.6061207403642,
   "end_elevation_m": 437.73450411452905,
   "start_xy": [
    2722408.6912357733,
    1224627.3137235385
   ],
   "end_xy": [
    2722496.659853432,
    1224582.1880488046
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.051048640276804,
   "start_distance_m": 1529.0,
   "end_distance_m": 1531.0,
   "midpoint_distance_m": 1530.0,
   "start_elevation_m": 602.1832322601142,
   "end_elevation_m": 603.1042532329197,
   "start_xy": [
    2722975.5955864033,
    1223941.4359025
   ],
   "end_xy": [
    2722974.4857245726,
    1223939.7721096294
   ]
  },
  "max_3m": {
   "gradient_pct": 38.70293944894835,
   "start_distance_m": 2228.0,
   "end_distance_m": 2231.0,
   "midpoint_distance_m": 2229.5,
   "start_elevation_m": 676.3474887243027,
   "end_elevation_m": 677.5085769077712,
   "start_xy": [
    2722963.985205072,
    1223261.441703178
   ],
   "end_xy": [
    2722963.096555648,
    1223258.5763411648
   ]
  }
 },
 "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": 0.057,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.084,
   "windows_resited": [
    5.0,
    10.0,
    25.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 4,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 1283.0,
     "end_m": 1308.0,
     "raw_pct": 19.81,
     "reason": "hump+mask-edge"
    },
    {
     "window_m": 20.0,
     "start_m": 1286.0,
     "end_m": 1306.0,
     "raw_pct": 23.66,
     "reason": "hump+mask-edge"
    },
    {
     "window_m": 10.0,
     "start_m": 1287.0,
     "end_m": 1297.0,
     "raw_pct": 35.17,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 1291.0,
     "end_m": 1296.0,
     "raw_pct": 42.8,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 2026.0,
     "end_m": 2051.0,
     "raw_pct": 17.37,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 2027.0,
     "end_m": 2047.0,
     "raw_pct": 18.87,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 2026.0,
     "end_m": 2036.0,
     "raw_pct": 28.34,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 2029.0,
     "end_m": 2034.0,
     "raw_pct": 40.18,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 1515.0,
     "end_m": 1520.0,
     "raw_pct": 31.32,
     "reason": "short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 1151.0,
     "end_m": 1156.0,
     "raw_pct": 29.25,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": [
    {
     "window_m": 5.0,
     "start_m": 2227.0,
     "end_m": 2232.0,
     "pct": 28.99,
     "reason": "mask-edge+short-step"
    }
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ],
   [
    615.0,
    655.0
   ],
   [
    1149.0,
    1158.0
   ],
   [
    1281.0,
    1314.0
   ],
   [
    1475.0,
    1487.0
   ],
   [
    1513.0,
    1522.0
   ],
   [
    1546.0,
    1555.0
   ],
   [
    1805.0,
    1810.0
   ],
   [
    1863.0,
    1871.0
   ],
   [
    2024.0,
    2053.0
   ],
   [
    2235.0,
    2246.0
   ],
   [
    2329.0,
    2364.0
   ],
   [
    2738.0,
    2743.0
   ]
  ],
  "review": [
   "short_window_divergence",
   "texture_unresolved"
  ],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "cd1381c557ec0196a6c481fc125290b249b285c2",
   "code_git_dirty": "true",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:faa4beed0662d2f6",
   "python": "3.14.4",
   "numpy": "2.5.3",
   "rasterio": "1.5.1",
   "pyproj": "3.8.0",
   "laspy": "2.7.0",
   "shapely": "2.1.2",
   "pyosmium": "4.3.1",
   "libosmium": "2.23.1",
   "gdal": "3.12.4",
   "proj": "9.8.1",
   "run_id": "remeasure-260920-ch",
   "road_pbf": "batch-switzerland-chunk253.pbf",
   "region_key": "switzerland",
   "crs": "EPSG:2056",
   "elevation_provider_key": "swisstopo",
   "tile_index": "stac",
   "authority": "swisstlm3d",
   "registry_pbf": "switzerland-2026-09-10.osm.pbf",
   "tile_index_snapshot": "sha256:ab5de878becb08ef"
  },
  "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_2722-1222_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2722-1223_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2722-1224_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2723-1222_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2723-1223_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2723-1224_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-21T01:42:44+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/remeasure-260920/ch/batch-switzerland-chunk253.pbf",
  "osm_snapshot": "",
  "run_id": "remeasure-260920-ch",
  "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": [
   "2722-1222",
   "2722-1223",
   "2722-1224",
   "2723-1222",
   "2723-1223",
   "2723-1224"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ],
   [
    620.2,
    650.2
   ]
  ],
  "carriageway": {
   "stations": 119,
   "stations_resolved": 119,
   "width_median_m": 4.25,
   "width_p10_m": 2.25,
   "width_min_m": 0.5,
   "width_max_m": 11.75,
   "bounded_share": 0.479,
   "unbounded_share": 0.521,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.75,
   "window_m": [
    883.0,
    908.0
   ],
   "width_at_max25_m": 8.0,
   "window_stations": 7,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "status": "unavailable \u2014 no DSM raster (surface model absent or point-cloud only, which cannot serve off-line samples)"
   }
  },
  "remeasured": {
   "on": "2026-09-21",
   "why": "corpus re-measure 2026-09-21: a mask that exists today reaching a page published before it did; fallers only (Peter: fold the fallers)",
   "published_max25_pct": 16.92,
   "max25_pct": 15.86
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Sch\u00e4nis",
  "county": "St. Gallen",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}