{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.9221, 12.4998)",
 "slug": "discovered-lane-46-9221-12-4998",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.577296623780057,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 128.0,
   "end_distance_m": 130.0,
   "start_elevation_m": 1356.1150843817918,
   "end_elevation_m": 1356.6866303142674,
   "min_gradient_pct": -71.0938743809038,
   "suppressed_max_gradient_pct": 65.60304137960884,
   "suppressed_location_m": [
    1437.0,
    1439.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.34067882117779,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 127.0,
   "end_distance_m": 130.0,
   "start_elevation_m": 1355.836409949632,
   "end_elevation_m": 1356.6866303142674,
   "min_gradient_pct": -48.555688124838525,
   "suppressed_max_gradient_pct": 46.69945724072022,
   "suppressed_location_m": [
    1437.0,
    1440.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.982848661031312,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 126.0,
   "end_distance_m": 131.0,
   "start_elevation_m": 1355.562547259838,
   "end_elevation_m": 1356.9616896928896,
   "min_gradient_pct": -27.43574676929711
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.455514706538906,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 123.0,
   "end_distance_m": 133.0,
   "start_elevation_m": 1354.8810752683405,
   "end_elevation_m": 1357.4266267389944,
   "min_gradient_pct": -13.490712922557577
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.583143882795866,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 152.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 1360.4147648004468,
   "end_elevation_m": 1364.931393577006,
   "min_gradient_pct": -5.589093954629334
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.556343066075897,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 148.0,
   "end_distance_m": 173.0,
   "start_elevation_m": 1359.7259633163058,
   "end_elevation_m": 1365.1150490828247,
   "min_gradient_pct": -4.123751090502992
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.4982352336433,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 122.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 1354.6822759601844,
   "end_elevation_m": 1364.931393577006,
   "min_gradient_pct": -1.2859902236409653
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.422842417835227,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 108.0,
   "end_distance_m": 208.0,
   "start_elevation_m": 1352.5006330840672,
   "end_elevation_m": 1369.9234755019024,
   "min_gradient_pct": 0.6880401050627825
  }
 ],
 "shape": {
  "ascent_concentration": 0.38,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 552.0,
  "shape_class": "sustained"
 },
 "length_m": 1671.9999999998518,
 "start_elevation_m": 1341.0996358155694,
 "end_elevation_m": 1490.6726572693317,
 "endpoint_gain_m": 149.5730214537623,
 "overall_gradient_pct": 8.945754871637295,
 "accumulated_ascent_m": 152.40458744418424,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.982848661031312,
   "start_distance_m": 126.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 128.5,
   "start_elevation_m": 1355.562547259838,
   "end_elevation_m": 1356.9616896928896,
   "start_xy": [
    4511367.635796755,
    2648663.1068372913
   ],
   "end_xy": [
    4511362.658230111,
    2648663.579937891
   ]
  },
  "max_10m": {
   "gradient_pct": 25.455514706538906,
   "start_distance_m": 123.0,
   "end_distance_m": 133.0,
   "midpoint_distance_m": 128.0,
   "start_elevation_m": 1354.8810752683405,
   "end_elevation_m": 1357.4266267389944,
   "start_xy": [
    4511370.622327223,
    2648662.822876748
   ],
   "end_xy": [
    4511360.667181036,
    2648663.7689425717
   ]
  },
  "max_20m": {
   "gradient_pct": 22.583143882795866,
   "start_distance_m": 152.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 162.0,
   "start_elevation_m": 1360.4147648004468,
   "end_elevation_m": 1364.931393577006,
   "start_xy": [
    4511341.829934273,
    2648662.8502224856
   ],
   "end_xy": [
    4511331.004040572,
    2648676.907652177
   ]
  },
  "max_25m": {
   "gradient_pct": 21.556343066075897,
   "start_distance_m": 148.0,
   "end_distance_m": 173.0,
   "midpoint_distance_m": 160.5,
   "start_elevation_m": 1359.7259633163058,
   "end_elevation_m": 1365.1150490828247,
   "start_xy": [
    4511345.76455489,
    2648662.6342438483
   ],
   "end_xy": [
    4511330.533463496,
    2648677.7900110562
   ]
  },
  "max_50m": {
   "gradient_pct": 20.4982352336433,
   "start_distance_m": 122.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 147.0,
   "start_elevation_m": 1354.6822759601844,
   "end_elevation_m": 1364.931393577006,
   "start_xy": [
    4511371.617805532,
    2648662.727887914
   ],
   "end_xy": [
    4511331.004040572,
    2648676.907652177
   ]
  },
  "max_100m": {
   "gradient_pct": 17.422842417835227,
   "start_distance_m": 108.0,
   "end_distance_m": 208.0,
   "midpoint_distance_m": 158.0,
   "start_elevation_m": 1352.5006330840672,
   "end_elevation_m": 1369.9234755019024,
   "start_xy": [
    4511385.597729684,
    2648663.167583338
   ],
   "end_xy": [
    4511333.83424256,
    2648689.2597201555
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -27.43574676929711,
   "start_distance_m": 1432.0,
   "end_distance_m": 1437.0,
   "midpoint_distance_m": 1434.5,
   "start_elevation_m": 1482.6191772246625,
   "end_elevation_m": 1481.2473898861977,
   "start_xy": [
    4511202.054232062,
    2649002.9395626094
   ],
   "end_xy": [
    4511197.171409714,
    2649004.0156856817
   ]
  },
  "min_10m": {
   "gradient_pct": -13.490712922557577,
   "start_distance_m": 1427.0,
   "end_distance_m": 1437.0,
   "midpoint_distance_m": 1432.0,
   "start_elevation_m": 1482.5964611784534,
   "end_elevation_m": 1481.2473898861977,
   "start_xy": [
    4511206.134640997,
    2649000.0899588484
   ],
   "end_xy": [
    4511197.171409714,
    2649004.0156856817
   ]
  },
  "min_20m": {
   "gradient_pct": -5.589093954629334,
   "start_distance_m": 1417.0,
   "end_distance_m": 1437.0,
   "midpoint_distance_m": 1427.0,
   "start_elevation_m": 1482.3652086771235,
   "end_elevation_m": 1481.2473898861977,
   "start_xy": [
    4511210.276776752,
    2648991.0387089984
   ],
   "end_xy": [
    4511197.171409714,
    2649004.0156856817
   ]
  },
  "min_25m": {
   "gradient_pct": -4.123751090502992,
   "start_distance_m": 1412.0,
   "end_distance_m": 1437.0,
   "midpoint_distance_m": 1424.5,
   "start_elevation_m": 1482.2783276588234,
   "end_elevation_m": 1481.2473898861977,
   "start_xy": [
    4511212.1197560355,
    2648986.3907612124
   ],
   "end_xy": [
    4511197.171409714,
    2649004.0156856817
   ]
  },
  "min_50m": {
   "gradient_pct": -1.2859902236409653,
   "start_distance_m": 1387.0,
   "end_distance_m": 1437.0,
   "midpoint_distance_m": 1412.0,
   "start_elevation_m": 1481.8903849980181,
   "end_elevation_m": 1481.2473898861977,
   "start_xy": [
    4511222.17584514,
    2648963.53737237
   ],
   "end_xy": [
    4511197.171409714,
    2649004.0156856817
   ]
  },
  "min_100m": {
   "gradient_pct": 0.6880401050627825,
   "start_distance_m": 1337.0,
   "end_distance_m": 1437.0,
   "midpoint_distance_m": 1387.0,
   "start_elevation_m": 1480.5593497811349,
   "end_elevation_m": 1481.2473898861977,
   "start_xy": [
    4511260.019373398,
    2648931.4288848503
   ],
   "end_xy": [
    4511197.171409714,
    2649004.0156856817
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.577296623780057,
   "start_distance_m": 128.0,
   "end_distance_m": 130.0,
   "midpoint_distance_m": 129.0,
   "start_elevation_m": 1356.1150843817918,
   "end_elevation_m": 1356.6866303142674,
   "start_xy": [
    4511365.644752524,
    2648663.2958929753
   ],
   "end_xy": [
    4511363.653703542,
    2648663.4848976517
   ]
  },
  "max_3m": {
   "gradient_pct": 28.34067882117779,
   "start_distance_m": 127.0,
   "end_distance_m": 130.0,
   "midpoint_distance_m": 128.5,
   "start_elevation_m": 1355.836409949632,
   "end_elevation_m": 1356.6866303142674,
   "start_xy": [
    4511366.640234046,
    2648663.2009375156
   ],
   "end_xy": [
    4511363.653703542,
    2648663.4848976517
   ]
  }
 },
 "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": 0.005,
   "windows_resited": [
    2.0,
    3.0
   ],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.077,
   "obstruction_max_height_m": 18.41,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    1433.0,
    1440.0
   ]
  ],
  "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_E4510-N2648.tif",
   "data/cache/at/bev-als_dtm_E4510-N2649.tif",
   "data/cache/at/bev-als_dtm_E4511-N2648.tif",
   "data/cache/at/bev-als_dtm_E4511-N2649.tif"
  ],
  "calculated_at": "2026-09-15T21:41:51+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/austria-2026-09-11.osm.pbf",
  "osm_snapshot": "2026-09-10T20:21:06Z",
  "run_id": "retro-260915-dogleg-all",
  "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": [
   "E4510-N2648",
   "E4510-N2649",
   "E4511-N2648",
   "E4511-N2649"
  ],
  "elevation_blocks": [
   "N2600000E4500000@2022-09-15"
  ],
  "bev_dsm_release": {
   "N2600000E4500000": "20220915"
  },
  "route_cut_m": 1672.0,
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Hopfgarten in Defereggen",
  "county": "Tirol",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}