{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.5337, 14.5712)",
 "slug": "discovered-lane-46-5337-14-5712",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.288795151461272,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1137.0,
   "end_distance_m": 1139.0,
   "start_elevation_m": 571.6509162908004,
   "end_elevation_m": 572.1166921938296,
   "min_gradient_pct": -7.888049505220351
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.31003200345852,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1137.0,
   "end_distance_m": 1140.0,
   "start_elevation_m": 571.6509162908004,
   "end_elevation_m": 572.3502172509042,
   "min_gradient_pct": -7.707707893011199
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.04740160411484,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1136.0,
   "end_distance_m": 1141.0,
   "start_elevation_m": 571.4270011509802,
   "end_elevation_m": 572.579371231186,
   "min_gradient_pct": -7.580971261452305
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.60827582790398,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1129.0,
   "end_distance_m": 1139.0,
   "start_elevation_m": 569.8558646110392,
   "end_elevation_m": 572.1166921938296,
   "min_gradient_pct": -7.453593648323249
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.12528726823166,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1127.0,
   "end_distance_m": 1147.0,
   "start_elevation_m": 569.4192649006682,
   "end_elevation_m": 573.8443223543145,
   "min_gradient_pct": -7.235103588777747
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.69805410299614,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1126.0,
   "end_distance_m": 1151.0,
   "start_elevation_m": 569.2179418126725,
   "end_elevation_m": 574.6424553384215,
   "min_gradient_pct": -7.051366580544254
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.339636221451883,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1115.0,
   "end_distance_m": 1165.0,
   "start_elevation_m": 567.0544835459516,
   "end_elevation_m": 577.2243016566775,
   "min_gradient_pct": -6.218274644888652
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.855599293310092,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1075.0,
   "end_distance_m": 1175.0,
   "start_elevation_m": 560.9490595673753,
   "end_elevation_m": 578.8046588606854,
   "min_gradient_pct": -3.0463370595198285
  }
 ],
 "shape": {
  "ascent_concentration": 0.466,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 134.0,
  "shape_class": "stepped"
 },
 "length_m": 2222.4287583063838,
 "start_elevation_m": 478.3644023541124,
 "end_elevation_m": 623.6144568867251,
 "endpoint_gain_m": 145.25005453261264,
 "overall_gradient_pct": 6.535645023028832,
 "accumulated_ascent_m": 148.80993754403488,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.04740160411484,
   "start_distance_m": 1136.0,
   "end_distance_m": 1141.0,
   "midpoint_distance_m": 1138.5,
   "start_elevation_m": 571.4270011509802,
   "end_elevation_m": 572.579371231186,
   "start_xy": [
    4672006.366141007,
    2612813.663012951
   ],
   "end_xy": [
    4672007.617361115,
    2612808.822098963
   ]
  },
  "max_10m": {
   "gradient_pct": 22.60827582790398,
   "start_distance_m": 1129.0,
   "end_distance_m": 1139.0,
   "midpoint_distance_m": 1134.0,
   "start_elevation_m": 569.8558646110392,
   "end_elevation_m": 572.1166921938296,
   "start_xy": [
    4672004.614432856,
    2612820.440292535
   ],
   "end_xy": [
    4672007.1168730715,
    2612810.7584645585
   ]
  },
  "max_20m": {
   "gradient_pct": 22.12528726823166,
   "start_distance_m": 1127.0,
   "end_distance_m": 1147.0,
   "midpoint_distance_m": 1137.0,
   "start_elevation_m": 569.4192649006682,
   "end_elevation_m": 573.8443223543145,
   "start_xy": [
    4672004.122744181,
    2612822.378901145
   ],
   "end_xy": [
    4672009.118825244,
    2612803.013002177
   ]
  },
  "max_25m": {
   "gradient_pct": 21.69805410299614,
   "start_distance_m": 1126.0,
   "end_distance_m": 1151.0,
   "midpoint_distance_m": 1138.5,
   "start_elevation_m": 569.2179418126725,
   "end_elevation_m": 574.6424553384215,
   "start_xy": [
    4672003.878975548,
    2612823.3487345604
   ],
   "end_xy": [
    4672010.119801329,
    2612799.140270986
   ]
  },
  "max_50m": {
   "gradient_pct": 20.339636221451883,
   "start_distance_m": 1115.0,
   "end_distance_m": 1165.0,
   "midpoint_distance_m": 1140.0,
   "start_elevation_m": 567.0544835459516,
   "end_elevation_m": 577.2243016566775,
   "start_xy": [
    4672001.197520576,
    2612834.0169021273
   ],
   "end_xy": [
    4672013.623217631,
    2612785.585711819
   ]
  },
  "max_100m": {
   "gradient_pct": 17.855599293310092,
   "start_distance_m": 1075.0,
   "end_distance_m": 1175.0,
   "midpoint_distance_m": 1125.0,
   "start_elevation_m": 560.9490595673753,
   "end_elevation_m": 578.8046588606854,
   "start_xy": [
    4671980.842468192,
    2612866.837886961
   ],
   "end_xy": [
    4672018.394843464,
    2612776.87296613
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.580971261452305,
   "start_distance_m": 1602.0,
   "end_distance_m": 1607.0,
   "midpoint_distance_m": 1604.5,
   "start_elevation_m": 606.0531320998641,
   "end_elevation_m": 605.6740835367915,
   "start_xy": [
    4671625.03435765,
    2612777.7842820142
   ],
   "end_xy": [
    4671620.162785634,
    2612778.907445919
   ]
  },
  "min_10m": {
   "gradient_pct": -7.453593648323249,
   "start_distance_m": 1601.0,
   "end_distance_m": 1611.0,
   "midpoint_distance_m": 1606.0,
   "start_elevation_m": 606.12337306396,
   "end_elevation_m": 605.3780136991277,
   "start_xy": [
    4671626.014964418,
    2612777.588296385
   ],
   "end_xy": [
    4671616.273076422,
    2612779.8402697328
   ]
  },
  "min_20m": {
   "gradient_pct": -7.235103588777747,
   "start_distance_m": 1591.0,
   "end_distance_m": 1611.0,
   "midpoint_distance_m": 1601.0,
   "start_elevation_m": 606.8250344168832,
   "end_elevation_m": 605.3780136991277,
   "start_xy": [
    4671635.821032096,
    2612775.6284400905
   ],
   "end_xy": [
    4671616.273076422,
    2612779.8402697328
   ]
  },
  "min_25m": {
   "gradient_pct": -7.051366580544254,
   "start_distance_m": 1590.0,
   "end_distance_m": 1615.0,
   "midpoint_distance_m": 1602.5,
   "start_elevation_m": 606.8921608356288,
   "end_elevation_m": 605.1293191904928,
   "start_xy": [
    4671636.801638864,
    2612775.432454461
   ],
   "end_xy": [
    4671612.38393699,
    2612780.7754672966
   ]
  },
  "min_50m": {
   "gradient_pct": -6.218274644888652,
   "start_distance_m": 1578.0,
   "end_distance_m": 1628.0,
   "midpoint_distance_m": 1603.0,
   "start_elevation_m": 607.5528332917545,
   "end_elevation_m": 604.4436959693102,
   "start_xy": [
    4671648.568920078,
    2612773.0806269078
   ],
   "end_xy": [
    4671599.744233838,
    2612783.8148593777
   ]
  },
  "min_100m": {
   "gradient_pct": -3.0463370595198285,
   "start_distance_m": 1574.0,
   "end_distance_m": 1674.0,
   "midpoint_distance_m": 1624.0,
   "start_elevation_m": 607.6135852531552,
   "end_elevation_m": 604.5672481936354,
   "start_xy": [
    4671652.491347148,
    2612772.29668439
   ],
   "end_xy": [
    4671556.386450639,
    2612798.951477308
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.288795151461272,
   "start_distance_m": 1137.0,
   "end_distance_m": 1139.0,
   "midpoint_distance_m": 1138.0,
   "start_elevation_m": 571.6509162908004,
   "end_elevation_m": 572.1166921938296,
   "start_xy": [
    4672006.616385029,
    2612812.6948301536
   ],
   "end_xy": [
    4672007.1168730715,
    2612810.7584645585
   ]
  },
  "max_3m": {
   "gradient_pct": 23.31003200345852,
   "start_distance_m": 1137.0,
   "end_distance_m": 1140.0,
   "midpoint_distance_m": 1138.5,
   "start_elevation_m": 571.6509162908004,
   "end_elevation_m": 572.3502172509042,
   "start_xy": [
    4672006.616385029,
    2612812.6948301536
   ],
   "end_xy": [
    4672007.367117093,
    2612809.7902817605
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.179,
   "obstruction_max_height_m": 27.03,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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:3035",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/at/bev-als_dtm_E4671-N2612.tif",
   "data/cache/at/bev-als_dtm_E4671-N2613.tif",
   "data/cache/at/bev-als_dtm_E4672-N2612.tif",
   "data/cache/at/bev-als_dtm_E4672-N2613.tif"
  ],
  "calculated_at": "2026-09-11T07:22:56+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/austria-2026-09-11-batch.osm.pbf",
  "osm_snapshot": "",
  "run_id": "at-run1-260911",
  "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": [
   "E4671-N2612",
   "E4671-N2613",
   "E4672-N2612",
   "E4672-N2613"
  ],
  "elevation_blocks": [
   "N2600000E4650000@2022-09-15"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Eisenkappel-Vellach",
  "county": "K\u00e4rnten",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}