{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.7984, 13.6127)",
 "slug": "discovered-lane-46-7984-13-6127",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.883178178855815,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1429.0,
   "end_distance_m": 1431.0,
   "start_elevation_m": 909.4074262669975,
   "end_elevation_m": 909.9250898305746,
   "min_gradient_pct": -27.319813166656104,
   "suppressed_max_gradient_pct": 58.18113769994966,
   "suppressed_location_m": [
    1035.0,
    1037.0
   ],
   "suppressed_min_gradient_pct": -53.452150957957656,
   "suppressed_min_location_m": [
    1030.0,
    1032.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.717204578173398,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1429.0,
   "end_distance_m": 1432.0,
   "start_elevation_m": 909.4074262669975,
   "end_elevation_m": 910.1789424043427,
   "min_gradient_pct": -16.588557040540763,
   "suppressed_max_gradient_pct": 54.90898708696932,
   "suppressed_location_m": [
    1034.0,
    1037.0
   ],
   "suppressed_min_gradient_pct": -49.347189290119786,
   "suppressed_min_location_m": [
    1029.0,
    1032.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.293283553351102,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1429.0,
   "end_distance_m": 1434.0,
   "start_elevation_m": 909.4074262669975,
   "end_elevation_m": 910.6720904446651,
   "min_gradient_pct": -6.799876182658409,
   "suppressed_max_gradient_pct": 48.88047369236119,
   "suppressed_location_m": [
    1034.0,
    1039.0
   ],
   "suppressed_min_gradient_pct": -35.01477587646605,
   "suppressed_min_location_m": [
    1028.0,
    1033.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.018246740831728,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1429.0,
   "end_distance_m": 1439.0,
   "start_elevation_m": 909.4074262669975,
   "end_elevation_m": 911.8092509410807,
   "min_gradient_pct": -3.867500686942549,
   "suppressed_max_gradient_pct": 32.15539599140925,
   "suppressed_location_m": [
    1033.0,
    1043.0
   ],
   "suppressed_min_gradient_pct": -12.827625158220144,
   "suppressed_min_location_m": [
    1023.0,
    1033.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.92147740035921,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1428.0,
   "end_distance_m": 1448.0,
   "start_elevation_m": 909.1996602847396,
   "end_elevation_m": 913.5839557648114,
   "min_gradient_pct": -1.9521274842645653,
   "suppressed_max_gradient_pct": 22.740704594399972,
   "suppressed_location_m": [
    1033.0,
    1053.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.369578271418504,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 1428.0,
   "end_distance_m": 1453.0,
   "start_elevation_m": 909.1996602847396,
   "end_elevation_m": 914.5420548525942,
   "min_gradient_pct": -1.848402943320707,
   "suppressed_max_gradient_pct": 22.20985452874038,
   "suppressed_location_m": [
    1033.0,
    1058.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.8435829158218,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 1050.0,
   "end_distance_m": 1100.0,
   "start_elevation_m": 870.8852455860392,
   "end_elevation_m": 880.8070370439501,
   "min_gradient_pct": 1.0725458978843108,
   "suppressed_max_gradient_pct": 21.524056430872633,
   "suppressed_location_m": [
    1033.0,
    1083.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.161922254613273,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 1046.0,
   "end_distance_m": 1146.0,
   "start_elevation_m": 870.3755262504446,
   "end_elevation_m": 886.5374485050579,
   "min_gradient_pct": 3.608035950519934,
   "suppressed_max_gradient_pct": 18.871658164174846,
   "suppressed_location_m": [
    1033.0,
    1133.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.415,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 220.0,
  "shape_class": "sustained"
 },
 "length_m": 1469.7314375564497,
 "start_elevation_m": 784.6391667548799,
 "end_elevation_m": 917.6545467993238,
 "endpoint_gain_m": 133.015380044444,
 "overall_gradient_pct": 9.050318762017712,
 "accumulated_ascent_m": 135.64884629891662,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.293283553351102,
   "start_distance_m": 1429.0,
   "end_distance_m": 1434.0,
   "midpoint_distance_m": 1431.5,
   "start_elevation_m": 909.4074262669975,
   "end_elevation_m": 910.6720904446651,
   "start_xy": [
    4596974.978627255,
    2638528.4399321997
   ],
   "end_xy": [
    4596977.583223908,
    2638532.7079616003
   ]
  },
  "max_10m": {
   "gradient_pct": 24.018246740831728,
   "start_distance_m": 1429.0,
   "end_distance_m": 1439.0,
   "midpoint_distance_m": 1434.0,
   "start_elevation_m": 909.4074262669975,
   "end_elevation_m": 911.8092509410807,
   "start_xy": [
    4596974.978627255,
    2638528.4399321997
   ],
   "end_xy": [
    4596980.187261015,
    2638536.9763318757
   ]
  },
  "max_20m": {
   "gradient_pct": 21.92147740035921,
   "start_distance_m": 1428.0,
   "end_distance_m": 1448.0,
   "midpoint_distance_m": 1438.0,
   "start_elevation_m": 909.1996602847396,
   "end_elevation_m": 913.5839557648114,
   "start_xy": [
    4596974.458020535,
    2638527.5861356086
   ],
   "end_xy": [
    4596984.875229658,
    2638544.658971014
   ]
  },
  "max_25m": {
   "gradient_pct": 21.369578271418504,
   "start_distance_m": 1428.0,
   "end_distance_m": 1453.0,
   "midpoint_distance_m": 1440.5,
   "start_elevation_m": 909.1996602847396,
   "end_elevation_m": 914.5420548525942,
   "start_xy": [
    4596974.458020535,
    2638527.5861356086
   ],
   "end_xy": [
    4596987.47926676,
    2638548.927341292
   ]
  },
  "max_50m": {
   "gradient_pct": 19.8435829158218,
   "start_distance_m": 1050.0,
   "end_distance_m": 1100.0,
   "midpoint_distance_m": 1075.0,
   "start_elevation_m": 870.8852455860392,
   "end_elevation_m": 880.8070370439501,
   "start_xy": [
    4596949.292645064,
    2638325.132029777
   ],
   "end_xy": [
    4596936.402871336,
    2638372.9338241937
   ]
  },
  "max_100m": {
   "gradient_pct": 16.161922254613273,
   "start_distance_m": 1046.0,
   "end_distance_m": 1146.0,
   "midpoint_distance_m": 1096.0,
   "start_elevation_m": 870.3755262504446,
   "end_elevation_m": 886.5374485050579,
   "start_xy": [
    4596951.067406772,
    2638321.632727365
   ],
   "end_xy": [
    4596892.309525464,
    2638372.1193212136
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.799876182658409,
   "start_distance_m": 1025.0,
   "end_distance_m": 1030.0,
   "midpoint_distance_m": 1027.5,
   "start_elevation_m": 868.3586300980269,
   "end_elevation_m": 868.018636288894,
   "start_xy": [
    4596969.803208922,
    2638313.8744644844
   ],
   "end_xy": [
    4596964.8844510745,
    2638314.751125657
   ]
  },
  "min_10m": {
   "gradient_pct": -3.867500686942549,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 784.6391667548799,
   "end_elevation_m": 784.2524166861856,
   "start_xy": [
    4597328.909,
    2637697.764
   ],
   "end_xy": [
    4597337.983258513,
    2637693.5618804237
   ]
  },
  "min_20m": {
   "gradient_pct": -1.9521274842645653,
   "start_distance_m": 1258.0,
   "end_distance_m": 1278.0,
   "midpoint_distance_m": 1268.0,
   "start_elevation_m": 897.9790848440093,
   "end_elevation_m": 897.5886593471564,
   "start_xy": [
    4596868.352307848,
    2638464.0752055645
   ],
   "end_xy": [
    4596860.408670251,
    2638482.1338219405
   ]
  },
  "min_25m": {
   "gradient_pct": -1.848402943320707,
   "start_distance_m": 1257.0,
   "end_distance_m": 1282.0,
   "midpoint_distance_m": 1269.5,
   "start_elevation_m": 897.9889272700925,
   "end_elevation_m": 897.5268265342623,
   "start_xy": [
    4596868.869992157,
    2638463.21963386
   ],
   "end_xy": [
    4596859.641548401,
    2638486.059573013
   ]
  },
  "min_50m": {
   "gradient_pct": 1.0725458978843108,
   "start_distance_m": 1254.0,
   "end_distance_m": 1304.0,
   "midpoint_distance_m": 1279.0,
   "start_elevation_m": 897.9007133981262,
   "end_elevation_m": 898.4369863470683,
   "start_xy": [
    4596870.422632458,
    2638460.6526691434
   ],
   "end_xy": [
    4596868.857965661,
    2638501.467724999
   ]
  },
  "min_100m": {
   "gradient_pct": 3.608035950519934,
   "start_distance_m": 598.0,
   "end_distance_m": 698.0,
   "midpoint_distance_m": 648.0,
   "start_elevation_m": 826.669402243988,
   "end_elevation_m": 830.2774381945079,
   "start_xy": [
    4597119.837865748,
    2638035.916205621
   ],
   "end_xy": [
    4597028.480783522,
    2638070.6377373966
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.883178178855815,
   "start_distance_m": 1429.0,
   "end_distance_m": 1431.0,
   "midpoint_distance_m": 1430.0,
   "start_elevation_m": 909.4074262669975,
   "end_elevation_m": 909.9250898305746,
   "start_xy": [
    4596974.978627255,
    2638528.4399321997
   ],
   "end_xy": [
    4596976.0203707665,
    2638530.1472020424
   ]
  },
  "max_3m": {
   "gradient_pct": 25.717204578173398,
   "start_distance_m": 1429.0,
   "end_distance_m": 1432.0,
   "midpoint_distance_m": 1430.5,
   "start_elevation_m": 909.4074262669975,
   "end_elevation_m": 910.1789424043427,
   "start_xy": [
    4596974.978627255,
    2638528.4399321997
   ],
   "end_xy": [
    4596976.541480523,
    2638531.0006916816
   ]
  }
 },
 "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": 0.01,
   "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
   ],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 10.0,
     "start_m": 1033.0,
     "end_m": 1043.0,
     "raw_pct": 32.16,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 1034.0,
     "end_m": 1039.0,
     "raw_pct": 48.88,
     "reason": "hump+short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.094,
   "obstruction_max_height_m": 16.25,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20
   ]
  },
  "excluded_ranges_m": [
   [
    1031.0,
    1045.0
   ]
  ],
  "review": [
   "max5_over_45",
   "short_window_divergence"
  ],
  "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-at",
   "road_pbf": "batch-austria-chunk016.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_E4596-N2637@20220915.tif",
   "data/cache/at/bev-als_dtm_E4596-N2638@20220915.tif",
   "data/cache/at/bev-als_dtm_E4597-N2637@20220915.tif",
   "data/cache/at/bev-als_dtm_E4597-N2638@20220915.tif"
  ],
  "calculated_at": "2026-09-20T23:52:50+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/remeasure-260920/at/batch-austria-chunk016.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": [
   "E4596-N2637",
   "E4596-N2638",
   "E4597-N2637",
   "E4597-N2638"
  ],
  "elevation_blocks": [
   "N2600000E4550000@2022-09-15"
  ],
  "bev_dsm_release": {
   "N2600000E4550000": "20220915"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 65,
   "stations_resolved": 65,
   "width_median_m": 5.25,
   "width_p10_m": 3.5,
   "width_min_m": 1.5,
   "width_max_m": 12.0,
   "bounded_share": 0.2,
   "unbounded_share": 0.8,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    1428.0,
    1453.0
   ],
   "width_at_max25_m": 3.75,
   "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": {
    "stations": 65,
    "stations_resolved": 65,
    "width_median_m": 7.5,
    "width_p10_m": 2.0,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.631,
    "unbounded_share": 0.369,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.75,
    "window_m": [
     1428.0,
     1453.0
    ],
    "width_at_max25_m": 7.25,
    "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": 22.11,
   "max25_pct": 21.37
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Millstatt am See",
  "county": "K\u00e4rnten",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}