{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (48.4250, 13.9856)",
 "slug": "discovered-lane-48-4250-13-9856",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.56266006810415,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 303.0,
   "end_distance_m": 305.0,
   "start_elevation_m": 359.04782471550675,
   "end_elevation_m": 359.61907791686883,
   "min_gradient_pct": 2.5163049695578366,
   "suppressed_max_gradient_pct": 49.61966230467283,
   "suppressed_location_m": [
    310.0,
    312.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.053698931776655,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 302.0,
   "end_distance_m": 305.0,
   "start_elevation_m": 358.80746694891553,
   "end_elevation_m": 359.61907791686883,
   "min_gradient_pct": 2.6122551795140225,
   "suppressed_max_gradient_pct": 42.783853129427975,
   "suppressed_location_m": [
    309.0,
    312.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.85649276433014,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 287.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 356.13649294494854,
   "end_elevation_m": 357.32931758316505,
   "min_gradient_pct": 2.691940730819624,
   "suppressed_max_gradient_pct": 34.667299698354554,
   "suppressed_location_m": [
    308.0,
    313.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.175270527221983,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 282.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 355.01179053044285,
   "end_elevation_m": 357.32931758316505,
   "min_gradient_pct": 2.790648914164535,
   "suppressed_max_gradient_pct": 32.13113354692382,
   "suppressed_location_m": [
    303.0,
    313.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.267662040900404,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 272.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 352.87578517498497,
   "end_elevation_m": 357.32931758316505,
   "min_gradient_pct": 3.0983048400457847,
   "suppressed_max_gradient_pct": 24.435582096287476,
   "suppressed_location_m": [
    298.0,
    318.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.944937121812472,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 268.0,
   "end_distance_m": 293.0,
   "start_elevation_m": 352.05442838316304,
   "end_elevation_m": 357.54066266361616,
   "min_gradient_pct": 3.3960787849262033,
   "suppressed_max_gradient_pct": 23.523444056979997,
   "suppressed_location_m": [
    288.0,
    313.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.916293516470546,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 242.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 346.8711708249298,
   "end_elevation_m": 357.32931758316505,
   "min_gradient_pct": 4.8455073059826645,
   "suppressed_max_gradient_pct": 22.614478967675154,
   "suppressed_location_m": [
    263.0,
    313.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.485564638071878,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 205.0,
   "end_distance_m": 305.0,
   "start_elevation_m": 341.13351327879695,
   "end_elevation_m": 359.61907791686883,
   "min_gradient_pct": 5.299015540653102,
   "suppressed_max_gradient_pct": 20.375041769405357,
   "suppressed_location_m": [
    218.0,
    318.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.387,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 131.0,
  "shape_class": "sustained"
 },
 "length_m": 1481.1021751058781,
 "start_elevation_m": 320.4514100536688,
 "end_elevation_m": 439.3793208251926,
 "endpoint_gain_m": 118.92791077152384,
 "overall_gradient_pct": 8.02968983304762,
 "accumulated_ascent_m": 118.92791077152384,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.85649276433014,
   "start_distance_m": 287.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 289.5,
   "start_elevation_m": 356.13649294494854,
   "end_elevation_m": 357.32931758316505,
   "start_xy": [
    4616041.22218594,
    2820353.0292312787
   ],
   "end_xy": [
    4616046.182083771,
    2820353.6612183014
   ]
  },
  "max_10m": {
   "gradient_pct": 23.175270527221983,
   "start_distance_m": 282.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 287.0,
   "start_elevation_m": 355.01179053044285,
   "end_elevation_m": 357.32931758316505,
   "start_xy": [
    4616036.262288108,
    2820352.3972442555
   ],
   "end_xy": [
    4616046.182083771,
    2820353.6612183014
   ]
  },
  "max_20m": {
   "gradient_pct": 22.267662040900404,
   "start_distance_m": 272.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 282.0,
   "start_elevation_m": 352.87578517498497,
   "end_elevation_m": 357.32931758316505,
   "start_xy": [
    4616026.3344659405,
    2820351.1979692318
   ],
   "end_xy": [
    4616046.182083771,
    2820353.6612183014
   ]
  },
  "max_25m": {
   "gradient_pct": 21.944937121812472,
   "start_distance_m": 268.0,
   "end_distance_m": 293.0,
   "midpoint_distance_m": 280.5,
   "start_elevation_m": 352.05442838316304,
   "end_elevation_m": 357.54066266361616,
   "start_xy": [
    4616022.363248185,
    2820350.718984675
   ],
   "end_xy": [
    4616047.174108332,
    2820353.787262861
   ]
  },
  "max_50m": {
   "gradient_pct": 20.916293516470546,
   "start_distance_m": 242.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 267.0,
   "start_elevation_m": 346.8711708249298,
   "end_elevation_m": 357.32931758316505,
   "start_xy": [
    4615996.560032064,
    2820347.5272117336
   ],
   "end_xy": [
    4616046.182083771,
    2820353.6612183014
   ]
  },
  "max_100m": {
   "gradient_pct": 18.485564638071878,
   "start_distance_m": 205.0,
   "end_distance_m": 305.0,
   "midpoint_distance_m": 255.0,
   "start_elevation_m": 341.13351327879695,
   "end_elevation_m": 359.61907791686883,
   "start_xy": [
    4615959.930569988,
    2820348.00746697
   ],
   "end_xy": [
    4616059.07784323,
    2820355.304187749
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 2.691940730819624,
   "start_distance_m": 1172.0,
   "end_distance_m": 1177.0,
   "midpoint_distance_m": 1174.5,
   "start_elevation_m": 418.0256124153259,
   "end_elevation_m": 418.1602094518669,
   "start_xy": [
    4616533.733995896,
    2820226.065414307
   ],
   "end_xy": [
    4616531.32650829,
    2820221.685948858
   ]
  },
  "min_10m": {
   "gradient_pct": 2.790648914164535,
   "start_distance_m": 1170.0,
   "end_distance_m": 1180.0,
   "midpoint_distance_m": 1175.0,
   "start_elevation_m": 417.96505076524863,
   "end_elevation_m": 418.2441156566651,
   "start_xy": [
    4616534.809433001,
    2820227.739133078
   ],
   "end_xy": [
    4616530.156986967,
    2820218.9233350097
   ]
  },
  "min_20m": {
   "gradient_pct": 3.0983048400457847,
   "start_distance_m": 1169.0,
   "end_distance_m": 1189.0,
   "midpoint_distance_m": 1179.0,
   "start_elevation_m": 417.9260791135765,
   "end_elevation_m": 418.5457400815857,
   "start_xy": [
    4616535.5532737365,
    2820228.4015621673
   ],
   "end_xy": [
    4616528.649026947,
    2820210.2001733463
   ]
  },
  "min_25m": {
   "gradient_pct": 3.3960787849262033,
   "start_distance_m": 1169.0,
   "end_distance_m": 1194.0,
   "midpoint_distance_m": 1181.5,
   "start_elevation_m": 417.9260791135765,
   "end_elevation_m": 418.77509880980807,
   "start_xy": [
    4616535.5532737365,
    2820228.4015621673
   ],
   "end_xy": [
    4616528.894206977,
    2820205.2170471624
   ]
  },
  "min_50m": {
   "gradient_pct": 4.8455073059826645,
   "start_distance_m": 1162.0,
   "end_distance_m": 1212.0,
   "midpoint_distance_m": 1187.0,
   "start_elevation_m": 417.5276428394619,
   "end_elevation_m": 419.95039649245325,
   "start_xy": [
    4616541.198730041,
    2820232.535438961
   ],
   "end_xy": [
    4616535.922733637,
    2820189.1994451666
   ]
  },
  "min_100m": {
   "gradient_pct": 5.299015540653102,
   "start_distance_m": 857.0,
   "end_distance_m": 957.0,
   "midpoint_distance_m": 907.0,
   "start_elevation_m": 398.2491809084194,
   "end_elevation_m": 403.5481964490725,
   "start_xy": [
    4616581.97617231,
    2820329.357483092
   ],
   "end_xy": [
    4616659.3258690275,
    2820377.84495545
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.56266006810415,
   "start_distance_m": 303.0,
   "end_distance_m": 305.0,
   "midpoint_distance_m": 304.0,
   "start_elevation_m": 359.04782471550675,
   "end_elevation_m": 359.61907791686883,
   "start_xy": [
    4616057.093904021,
    2820355.0512367045
   ],
   "end_xy": [
    4616059.07784323,
    2820355.304187749
   ]
  },
  "max_3m": {
   "gradient_pct": 27.053698931776655,
   "start_distance_m": 302.0,
   "end_distance_m": 305.0,
   "midpoint_distance_m": 303.5,
   "start_elevation_m": 358.80746694891553,
   "end_elevation_m": 359.61907791686883,
   "start_xy": [
    4616056.101879434,
    2820354.9251923473
   ],
   "end_xy": [
    4616059.07784323,
    2820355.304187749
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.007,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 308.0,
     "end_m": 313.0,
     "raw_pct": 34.67,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.291,
   "obstruction_max_height_m": 25.06,
   "flagged_windows_m": [
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    306.0,
    315.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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-at",
   "road_pbf": "batch-austria-chunk119.pbf",
   "region_key": "austria",
   "crs": "EPSG:3035",
   "elevation_provider_key": "bev-als",
   "tile_index": "cog-grid",
   "authority": "gip",
   "registry_pbf": "austria-2026-09-11.osm.pbf",
   "tile_index_snapshot": "sha256:b8dc649d37698355"
  },
  "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:3035",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/at/bev-als_dtm_E4615-N2820@20220915.tif",
   "data/cache/at/bev-als_dtm_E4616-N2820@20220915.tif"
  ],
  "calculated_at": "2026-09-21T00:32:56+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/remeasure-260920/at/batch-austria-chunk119.pbf",
  "osm_snapshot": "",
  "run_id": "remeasure-260920-at",
  "elevation_provider": "BEV ALS DTM 1 m",
  "elevation_licence": "Creative Commons Attribution 4.0 (CC BY 4.0) \u2014 \u00a9 BEV / L\u00e4nder, data.gv.at",
  "elevation_dataset": "ALS DTM H\u00f6henraster 1 m (Bundesamt f\u00fcr Eich- und Vermessungswesen with the L\u00e4nder), EPSG:3035",
  "elevation_tile_ids": [
   "E4615-N2820",
   "E4616-N2820"
  ],
  "elevation_blocks": [
   "N2800000E4600000@2022-09-15"
  ],
  "bev_dsm_release": {
   "N2800000E4600000": "20220915"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 66,
   "stations_resolved": 66,
   "width_median_m": 6.5,
   "width_p10_m": 2.75,
   "width_min_m": 1.25,
   "width_max_m": 12.0,
   "bounded_share": 0.606,
   "unbounded_share": 0.394,
   "confidence_median": 0.562,
   "width_median_bounded_m": 6.0,
   "window_m": [
    268.0,
    293.0
   ],
   "width_at_max25_m": 2.25,
   "window_stations": 7,
   "single_track": true,
   "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": {
    "stations": 66,
    "stations_resolved": 66,
    "width_median_m": 2.75,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.879,
    "unbounded_share": 0.121,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.5,
    "window_m": [
     268.0,
     293.0
    ],
    "width_at_max25_m": 1.25,
    "window_stations": 7,
    "status": "ok",
    "source": "dsm",
    "station_m": 25.0,
    "window_station_m": 5.0,
    "halfwidth_m": 6.0,
    "step_m": 0.25,
    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "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": 23.53,
   "max25_pct": 21.94
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "St. Martin im M\u00fchlkreis",
  "county": "Ober\u00f6sterreich",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}