{
 "ocl_version": "0.1.0",
 "name": "H\u00f6festrasse",
 "slug": "hofestrasse",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.742374925229797,
   "diagnostic": true,
   "flags": [
    "structure_excluded_min"
   ],
   "start_distance_m": 178.0,
   "end_distance_m": 180.0,
   "start_elevation_m": 555.1805808317691,
   "end_elevation_m": 555.7554283302737,
   "min_gradient_pct": 5.320626718008725,
   "suppressed_min_gradient_pct": 2.9118310291721627,
   "suppressed_min_location_m": [
    210.0,
    212.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.25340347717808,
   "diagnostic": true,
   "flags": [
    "structure_excluded_min"
   ],
   "start_distance_m": 177.0,
   "end_distance_m": 180.0,
   "start_elevation_m": 554.9078262259584,
   "end_elevation_m": 555.7554283302737,
   "min_gradient_pct": 5.616979423291468,
   "suppressed_min_gradient_pct": 4.640891644639093,
   "suppressed_min_location_m": [
    209.0,
    212.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.949245085780603,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 175.0,
   "end_distance_m": 180.0,
   "start_elevation_m": 554.4579660759847,
   "end_elevation_m": 555.7554283302737,
   "min_gradient_pct": 5.686667256666169
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.798457755409572,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 174.0,
   "end_distance_m": 184.0,
   "start_elevation_m": 554.2598667139355,
   "end_elevation_m": 556.6397124894764,
   "min_gradient_pct": 6.608867445523856
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.786796016558355,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 171.0,
   "end_distance_m": 191.0,
   "start_elevation_m": 553.7477763975483,
   "end_elevation_m": 557.9051356008599,
   "min_gradient_pct": 7.869484840717291,
   "suppressed_max_gradient_pct": 21.418327825554115,
   "suppressed_location_m": [
    173.0,
    193.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.852950760796375,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 166.0,
   "end_distance_m": 191.0,
   "start_elevation_m": 552.9418979106608,
   "end_elevation_m": 557.9051356008599,
   "min_gradient_pct": 8.40188248071081,
   "suppressed_max_gradient_pct": 20.52403726381226,
   "suppressed_location_m": [
    170.0,
    195.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.11651864959481,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 141.0,
   "end_distance_m": 191.0,
   "start_elevation_m": 549.3468762760625,
   "end_elevation_m": 557.9051356008599,
   "min_gradient_pct": 10.600445503501078,
   "suppressed_max_gradient_pct": 17.53712917887151,
   "suppressed_location_m": [
    147.0,
    197.0
   ],
   "suppressed_min_gradient_pct": 10.28397279144042,
   "suppressed_min_location_m": [
    39.0,
    89.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.839694169394079,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 91.0,
   "end_distance_m": 191.0,
   "start_elevation_m": 542.0654414314658,
   "end_elevation_m": 557.9051356008599,
   "min_gradient_pct": 12.641204434719498,
   "suppressed_max_gradient_pct": 16.107910113704406,
   "suppressed_location_m": [
    96.0,
    196.0
   ],
   "suppressed_min_gradient_pct": 11.733742891452266,
   "suppressed_min_location_m": [
    0.0,
    100.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.317,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 132.0,
  "shape_class": "sustained"
 },
 "length_m": 212.23214666884635,
 "start_elevation_m": 531.5733149467702,
 "end_elevation_m": 560.6983805097533,
 "endpoint_gain_m": 29.12506556298308,
 "overall_gradient_pct": 13.72321112523448,
 "accumulated_ascent_m": 29.125269806287633,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.949245085780603,
   "start_distance_m": 175.0,
   "end_distance_m": 180.0,
   "midpoint_distance_m": 177.5,
   "start_elevation_m": 554.4579660759847,
   "end_elevation_m": 555.7554283302737,
   "start_xy": [
    2678903.1156740133,
    1201631.131066807
   ],
   "end_xy": [
    2678907.242550182,
    1201628.3081444209
   ]
  },
  "max_10m": {
   "gradient_pct": 23.798457755409572,
   "start_distance_m": 174.0,
   "end_distance_m": 184.0,
   "midpoint_distance_m": 179.0,
   "start_elevation_m": 554.2598667139355,
   "end_elevation_m": 556.6397124894764,
   "start_xy": [
    2678902.29060878,
    1201631.6961042902
   ],
   "end_xy": [
    2678910.550612981,
    1201626.0595301446
   ]
  },
  "max_20m": {
   "gradient_pct": 20.786796016558355,
   "start_distance_m": 171.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 181.0,
   "start_elevation_m": 553.7477763975483,
   "end_elevation_m": 557.9051356008599,
   "start_xy": [
    2678899.8146380787,
    1201633.3900842248
   ],
   "end_xy": [
    2678916.459987634,
    1201622.3072922134
   ]
  },
  "max_25m": {
   "gradient_pct": 19.852950760796375,
   "start_distance_m": 166.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 178.5,
   "start_elevation_m": 552.9418979106608,
   "end_elevation_m": 557.9051356008599,
   "start_xy": [
    2678895.6880777,
    1201636.2134679996
   ],
   "end_xy": [
    2678916.459987634,
    1201622.3072922134
   ]
  },
  "max_50m": {
   "gradient_pct": 17.11651864959481,
   "start_distance_m": 141.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 166.0,
   "start_elevation_m": 549.3468762760625,
   "end_elevation_m": 557.9051356008599,
   "start_xy": [
    2678875.05493452,
    1201650.3298886153
   ],
   "end_xy": [
    2678916.459987634,
    1201622.3072922134
   ]
  },
  "max_100m": {
   "gradient_pct": 15.839694169394079,
   "start_distance_m": 91.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 141.0,
   "start_elevation_m": 542.0654414314658,
   "end_elevation_m": 557.9051356008599,
   "start_xy": [
    2678836.1751919226,
    1201681.4518317273
   ],
   "end_xy": [
    2678916.459987634,
    1201622.3072922134
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 5.686667256666169,
   "start_distance_m": 74.0,
   "end_distance_m": 79.0,
   "midpoint_distance_m": 76.5,
   "start_elevation_m": 540.5336484804598,
   "end_elevation_m": 540.8179818432931,
   "start_xy": [
    2678823.4156989213,
    1201692.6569922431
   ],
   "end_xy": [
    2678827.294645252,
    1201689.5020320592
   ]
  },
  "min_10m": {
   "gradient_pct": 6.608867445523856,
   "start_distance_m": 73.0,
   "end_distance_m": 83.0,
   "midpoint_distance_m": 78.0,
   "start_elevation_m": 540.4548774171475,
   "end_elevation_m": 541.1157641616999,
   "start_xy": [
    2678822.640226168,
    1201693.288373275
   ],
   "end_xy": [
    2678830.3968381463,
    1201686.9768790335
   ]
  },
  "min_20m": {
   "gradient_pct": 7.869484840717291,
   "start_distance_m": 64.0,
   "end_distance_m": 84.0,
   "midpoint_distance_m": 74.0,
   "start_elevation_m": 539.6295005209565,
   "end_elevation_m": 541.2033974891,
   "start_xy": [
    2678815.6591775073,
    1201698.9685977001
   ],
   "end_xy": [
    2678831.1725872187,
    1201686.3458432478
   ]
  },
  "min_25m": {
   "gradient_pct": 8.40188248071081,
   "start_distance_m": 62.0,
   "end_distance_m": 87.0,
   "midpoint_distance_m": 74.5,
   "start_elevation_m": 539.415260849119,
   "end_elevation_m": 541.5157314692967,
   "start_xy": [
    2678814.1078397706,
    1201700.230877712
   ],
   "end_xy": [
    2678833.340272981,
    1201684.273751126
   ]
  },
  "min_50m": {
   "gradient_pct": 10.600445503501078,
   "start_distance_m": 51.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 76.0,
   "start_elevation_m": 538.1490463521744,
   "end_elevation_m": 543.449269103925,
   "start_xy": [
    2678804.54562741,
    1201705.5606977846
   ],
   "end_xy": [
    2678843.262736212,
    1201674.3972796197
   ]
  },
  "min_100m": {
   "gradient_pct": 12.641204434719498,
   "start_distance_m": 51.0,
   "end_distance_m": 151.0,
   "midpoint_distance_m": 101.0,
   "start_elevation_m": 538.1490463521744,
   "end_elevation_m": 550.7902507868939,
   "start_xy": [
    2678804.54562741,
    1201705.5606977846
   ],
   "end_xy": [
    2678883.308224194,
    1201644.6833676728
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.742374925229797,
   "start_distance_m": 178.0,
   "end_distance_m": 180.0,
   "midpoint_distance_m": 179.0,
   "start_elevation_m": 555.1805808317691,
   "end_elevation_m": 555.7554283302737,
   "start_xy": [
    2678905.591644703,
    1201629.4370868558
   ],
   "end_xy": [
    2678907.242550182,
    1201628.3081444209
   ]
  },
  "max_3m": {
   "gradient_pct": 28.25340347717808,
   "start_distance_m": 177.0,
   "end_distance_m": 180.0,
   "midpoint_distance_m": 178.5,
   "start_elevation_m": 554.9078262259584,
   "end_elevation_m": 555.7554283302737,
   "start_xy": [
    2678904.766579481,
    1201630.0021243554
   ],
   "end_xy": [
    2678907.242550182,
    1201628.3081444209
   ]
  }
 },
 "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": 0.338,
   "windows_resited": [
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    50.0,
    100.0
   ],
   "minima_unresolved": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    50.0
   ],
   [
    192.0,
    212.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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-chunk216.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:dd2b7b98b1e339a5"
  },
  "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_2022_2678-1201_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-21T01:27:26+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/remeasure-260920/ch/batch-switzerland-chunk216.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": [
   "2678-1201"
  ],
  "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": [
   [
    197.2,
    227.2
   ],
   [
    0.0,
    15.0
   ],
   [
    0.0,
    15.0
   ]
  ],
  "mask_basin_extension_m": 30.0,
  "carriageway": {
   "stations": 15,
   "stations_resolved": 15,
   "width_median_m": 4.25,
   "width_p10_m": 3.1,
   "width_min_m": 2.0,
   "width_max_m": 7.25,
   "bounded_share": 0.333,
   "unbounded_share": 0.667,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.75,
   "window_m": [
    166.0,
    191.0
   ],
   "width_at_max25_m": 4.25,
   "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": 20.53,
   "max25_pct": 19.85
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Beckenried",
  "county": "Nidwalden",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}