{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.5800, 14.4853)",
 "slug": "discovered-lane-46-5800-14-4853",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.61827186661185,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 42.0,
   "end_distance_m": 44.0,
   "start_elevation_m": 744.0141386967605,
   "end_elevation_m": 744.9465041340927,
   "min_gradient_pct": -5.193824975395955
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 46.13940158272953,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 42.0,
   "end_distance_m": 45.0,
   "start_elevation_m": 744.0141386967605,
   "end_elevation_m": 745.3983207442424,
   "min_gradient_pct": -5.250198999207593
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 44.34727829057465,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 41.0,
   "end_distance_m": 46.0,
   "start_elevation_m": 743.599437961628,
   "end_elevation_m": 745.8168018761568,
   "min_gradient_pct": -3.98963792012637
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 38.03118220523288,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 41.0,
   "end_distance_m": 51.0,
   "start_elevation_m": 743.599437961628,
   "end_elevation_m": 747.4025561821513,
   "min_gradient_pct": -3.050247393949803
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 32.826056491327336,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 40.0,
   "end_distance_m": 60.0,
   "start_elevation_m": 743.2906096169745,
   "end_elevation_m": 749.85582091524,
   "min_gradient_pct": -0.5184598651970873
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 31.345923917750497,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 40.0,
   "end_distance_m": 65.0,
   "start_elevation_m": 743.2906096169745,
   "end_elevation_m": 751.1270905964121,
   "min_gradient_pct": 0.3160273347348266
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 25.667329257549454,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 40.0,
   "end_distance_m": 90.0,
   "start_elevation_m": 743.2906096169745,
   "end_elevation_m": 756.1242742457492,
   "min_gradient_pct": 1.8800577918691488
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.574366883923403,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 3.0,
   "end_distance_m": 103.0,
   "start_elevation_m": 738.286250007905,
   "end_elevation_m": 758.8606168918284,
   "min_gradient_pct": 4.8212583387080485
  }
 ],
 "shape": {
  "ascent_concentration": 0.507,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 83.0,
  "shape_class": "stepped"
 },
 "length_m": 354.0000000001005,
 "start_elevation_m": 738.0911757246229,
 "end_elevation_m": 775.0037074525447,
 "endpoint_gain_m": 36.91253172792187,
 "overall_gradient_pct": 10.427268849692485,
 "accumulated_ascent_m": 37.43612474862948,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 44.34727829057465,
   "start_distance_m": 41.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 43.5,
   "start_elevation_m": 743.599437961628,
   "end_elevation_m": 745.8168018761568,
   "start_xy": [
    4665024.019463911,
    2617586.1580440695
   ],
   "end_xy": [
    4665027.989068427,
    2617589.1981493286
   ]
  },
  "max_10m": {
   "gradient_pct": 38.03118220523288,
   "start_distance_m": 41.0,
   "end_distance_m": 51.0,
   "midpoint_distance_m": 46.0,
   "start_elevation_m": 743.599437961628,
   "end_elevation_m": 747.4025561821513,
   "start_xy": [
    4665024.019463911,
    2617586.1580440695
   ],
   "end_xy": [
    4665031.958672943,
    2617592.238254587
   ]
  },
  "max_20m": {
   "gradient_pct": 32.826056491327336,
   "start_distance_m": 40.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 743.2906096169745,
   "end_elevation_m": 749.85582091524,
   "start_xy": [
    4665023.16507282,
    2617585.6684576543
   ],
   "end_xy": [
    4665039.103961072,
    2617597.7104440536
   ]
  },
  "max_25m": {
   "gradient_pct": 31.345923917750497,
   "start_distance_m": 40.0,
   "end_distance_m": 65.0,
   "midpoint_distance_m": 52.5,
   "start_elevation_m": 743.2906096169745,
   "end_elevation_m": 751.1270905964121,
   "start_xy": [
    4665023.16507282,
    2617585.6684576543
   ],
   "end_xy": [
    4665043.073565588,
    2617600.7505493127
   ]
  },
  "max_50m": {
   "gradient_pct": 25.667329257549454,
   "start_distance_m": 40.0,
   "end_distance_m": 90.0,
   "midpoint_distance_m": 65.0,
   "start_elevation_m": 743.2906096169745,
   "end_elevation_m": 756.1242742457492,
   "start_xy": [
    4665023.16507282,
    2617585.6684576543
   ],
   "end_xy": [
    4665062.9215881685,
    2617615.9510756074
   ]
  },
  "max_100m": {
   "gradient_pct": 20.574366883923403,
   "start_distance_m": 3.0,
   "end_distance_m": 103.0,
   "midpoint_distance_m": 53.0,
   "start_elevation_m": 738.286250007905,
   "end_elevation_m": 758.8606168918284,
   "start_xy": [
    4664987.716230461,
    2617575.0675343242
   ],
   "end_xy": [
    4665066.998430883,
    2617627.7623101934
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.98963792012637,
   "start_distance_m": 246.0,
   "end_distance_m": 251.0,
   "midpoint_distance_m": 248.5,
   "start_elevation_m": 769.1978247027029,
   "end_elevation_m": 768.9983428066965,
   "start_xy": [
    4664958.453143957,
    2617694.7321003717
   ],
   "end_xy": [
    4664958.750656725,
    2617699.7232411383
   ]
  },
  "min_10m": {
   "gradient_pct": -3.050247393949803,
   "start_distance_m": 243.0,
   "end_distance_m": 253.0,
   "midpoint_distance_m": 248.0,
   "start_elevation_m": 769.2664639342152,
   "end_elevation_m": 768.9614391948202,
   "start_xy": [
    4664958.274636297,
    2617691.7374159116
   ],
   "end_xy": [
    4664958.869661832,
    2617701.719697445
   ]
  },
  "min_20m": {
   "gradient_pct": -0.5184598651970873,
   "start_distance_m": 243.0,
   "end_distance_m": 263.0,
   "midpoint_distance_m": 253.0,
   "start_elevation_m": 769.2664639342152,
   "end_elevation_m": 769.1627719611757,
   "start_xy": [
    4664958.274636297,
    2617691.7374159116
   ],
   "end_xy": [
    4664959.464687367,
    2617711.7019789782
   ]
  },
  "min_25m": {
   "gradient_pct": 0.3160273347348266,
   "start_distance_m": 243.0,
   "end_distance_m": 268.0,
   "midpoint_distance_m": 255.5,
   "start_elevation_m": 769.2664639342152,
   "end_elevation_m": 769.3454707678989,
   "start_xy": [
    4664958.274636297,
    2617691.7374159116
   ],
   "end_xy": [
    4664959.762200135,
    2617716.6931197452
   ]
  },
  "min_50m": {
   "gradient_pct": 1.8800577918691488,
   "start_distance_m": 224.0,
   "end_distance_m": 274.0,
   "midpoint_distance_m": 249.0,
   "start_elevation_m": 768.7005965612373,
   "end_elevation_m": 769.6406254571718,
   "start_xy": [
    4664961.54160181,
    2617673.825614579
   ],
   "end_xy": [
    4664960.119215456,
    2617722.682488665
   ]
  },
  "min_100m": {
   "gradient_pct": 4.8212583387080485,
   "start_distance_m": 184.0,
   "end_distance_m": 284.0,
   "midpoint_distance_m": 234.0,
   "start_elevation_m": 765.364761000922,
   "end_elevation_m": 770.1860193396301,
   "start_xy": [
    4664989.049588309,
    2617647.422824339
   ],
   "end_xy": [
    4664959.197963173,
    2617732.4735984453
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.61827186661185,
   "start_distance_m": 42.0,
   "end_distance_m": 44.0,
   "midpoint_distance_m": 43.0,
   "start_elevation_m": 744.0141386967605,
   "end_elevation_m": 744.9465041340927,
   "start_xy": [
    4665024.813384814,
    2617586.766065121
   ],
   "end_xy": [
    4665026.40122662,
    2617587.982107225
   ]
  },
  "max_3m": {
   "gradient_pct": 46.13940158272953,
   "start_distance_m": 42.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 43.5,
   "start_elevation_m": 744.0141386967605,
   "end_elevation_m": 745.3983207442424,
   "start_xy": [
    4665024.813384814,
    2617586.766065121
   ],
   "end_xy": [
    4665027.195147524,
    2617588.5901282765
   ]
  }
 },
 "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": 0.665,
   "obstruction_max_height_m": 27.43,
   "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_E4664-N2617.tif",
   "data/cache/at/bev-als_dtm_E4664-N2618.tif",
   "data/cache/at/bev-als_dtm_E4665-N2617.tif",
   "data/cache/at/bev-als_dtm_E4665-N2618.tif"
  ],
  "calculated_at": "2026-09-13T00:53:30+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-at-run4-260912.osm.pbf",
  "osm_snapshot": "",
  "run_id": "at-run4-260912",
  "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": [
   "E4664-N2617",
   "E4664-N2618",
   "E4665-N2617",
   "E4665-N2618"
  ],
  "elevation_blocks": [
   "N2600000E4650000@2022-09-15"
  ],
  "route_summit_trim_m": 495.0,
  "route_summit_trim_loss_m": 36.4,
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Grafenstein",
  "county": "K\u00e4rnten",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}