{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.4618, 15.0007)",
 "slug": "discovered-lane-47-4618-15-0007",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.5090262661231,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 111.0,
   "end_distance_m": 113.0,
   "start_elevation_m": 817.9942929391423,
   "end_elevation_m": 818.4644734644647,
   "min_gradient_pct": 4.186852523224616
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.248090751152933,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 111.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 817.9942929391423,
   "end_elevation_m": 818.6617356616769,
   "min_gradient_pct": 4.569779078629684
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.068726899467492,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 111.0,
   "end_distance_m": 116.0,
   "start_elevation_m": 817.9942929391423,
   "end_elevation_m": 819.0977292841156,
   "min_gradient_pct": 5.168869536396414
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.72957877970225,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 110.0,
   "end_distance_m": 120.0,
   "start_elevation_m": 817.7999492331736,
   "end_elevation_m": 819.8729071111438,
   "min_gradient_pct": 5.761148212089893
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.411561074573115,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 175.0,
   "end_distance_m": 195.0,
   "start_elevation_m": 829.739742064797,
   "end_elevation_m": 833.8220542797117,
   "min_gradient_pct": 6.717810869523078
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.305722498702835,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 172.0,
   "end_distance_m": 197.0,
   "start_elevation_m": 829.1416004742799,
   "end_elevation_m": 834.2180310989556,
   "min_gradient_pct": 7.026660941119189
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.88382826876591,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 146.0,
   "end_distance_m": 196.0,
   "start_elevation_m": 824.088161468146,
   "end_elevation_m": 834.030075602529,
   "min_gradient_pct": 9.394982119448741
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.84521094437241,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 109.0,
   "end_distance_m": 209.0,
   "start_elevation_m": 817.6204576715342,
   "end_elevation_m": 836.4656686159066,
   "min_gradient_pct": 12.352146526265074
  }
 ],
 "shape": {
  "ascent_concentration": 0.315,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 257.0,
  "shape_class": "sustained"
 },
 "length_m": 300.49539505368506,
 "start_elevation_m": 801.7629788933475,
 "end_elevation_m": 847.2401818493429,
 "endpoint_gain_m": 45.47720295599538,
 "overall_gradient_pct": 15.134076496536874,
 "accumulated_ascent_m": 45.47720295599538,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.068726899467492,
   "start_distance_m": 111.0,
   "end_distance_m": 116.0,
   "midpoint_distance_m": 113.5,
   "start_elevation_m": 817.9942929391423,
   "end_elevation_m": 819.0977292841156,
   "start_xy": [
    4697882.976754755,
    2718055.9699480827
   ],
   "end_xy": [
    4697887.658145174,
    2718057.721548116
   ]
  },
  "max_10m": {
   "gradient_pct": 20.72957877970225,
   "start_distance_m": 110.0,
   "end_distance_m": 120.0,
   "midpoint_distance_m": 115.0,
   "start_elevation_m": 817.7999492331736,
   "end_elevation_m": 819.8729071111438,
   "start_xy": [
    4697882.016848951,
    2718055.6896253284
   ],
   "end_xy": [
    4697891.391841801,
    2718059.1566472417
   ]
  },
  "max_20m": {
   "gradient_pct": 20.411561074573115,
   "start_distance_m": 175.0,
   "end_distance_m": 195.0,
   "midpoint_distance_m": 185.0,
   "start_elevation_m": 829.739742064797,
   "end_elevation_m": 833.8220542797117,
   "start_xy": [
    4697940.120246376,
    2718083.8807415427
   ],
   "end_xy": [
    4697955.611626989,
    2718096.3927291417
   ]
  },
  "max_25m": {
   "gradient_pct": 20.305722498702835,
   "start_distance_m": 172.0,
   "end_distance_m": 197.0,
   "midpoint_distance_m": 184.5,
   "start_elevation_m": 829.1416004742799,
   "end_elevation_m": 834.2180310989556,
   "start_xy": [
    4697937.913276063,
    2718081.848678049
   ],
   "end_xy": [
    4697957.470547892,
    2718096.942889044
   ]
  },
  "max_50m": {
   "gradient_pct": 19.88382826876591,
   "start_distance_m": 146.0,
   "end_distance_m": 196.0,
   "midpoint_distance_m": 171.0,
   "start_elevation_m": 824.088161468146,
   "end_elevation_m": 834.030075602529,
   "start_xy": [
    4697915.520243649,
    2718068.800269042
   ],
   "end_xy": [
    4697956.491635719,
    2718096.867686651
   ]
  },
  "max_100m": {
   "gradient_pct": 18.84521094437241,
   "start_distance_m": 109.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 159.0,
   "start_elevation_m": 817.6204576715342,
   "end_elevation_m": 836.4656686159066,
   "start_xy": [
    4697881.0569431465,
    2718055.4093025737
   ],
   "end_xy": [
    4697969.413175729,
    2718095.916421784
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 5.168869536396414,
   "start_distance_m": 256.0,
   "end_distance_m": 261.0,
   "midpoint_distance_m": 258.5,
   "start_elevation_m": 842.8999808848478,
   "end_elevation_m": 843.1584243616676,
   "start_xy": [
    4698010.478213998,
    2718107.342434147
   ],
   "end_xy": [
    4698011.458518198,
    2718112.23412898
   ]
  },
  "min_10m": {
   "gradient_pct": 5.761148212089893,
   "start_distance_m": 253.0,
   "end_distance_m": 263.0,
   "midpoint_distance_m": 258.0,
   "start_elevation_m": 842.702186363029,
   "end_elevation_m": 843.278301184238,
   "start_xy": [
    4698009.442703717,
    2718104.5268137073
   ],
   "end_xy": [
    4698011.6244172,
    2718114.2127053645
   ]
  },
  "min_20m": {
   "gradient_pct": 6.717810869523078,
   "start_distance_m": 252.0,
   "end_distance_m": 272.0,
   "midpoint_distance_m": 262.0,
   "start_elevation_m": 842.6294737500681,
   "end_elevation_m": 843.9730359239727,
   "start_xy": [
    4698009.0280840825,
    2718103.6325936643
   ],
   "end_xy": [
    4698010.035952855,
    2718123.033991448
   ]
  },
  "min_25m": {
   "gradient_pct": 7.026660941119189,
   "start_distance_m": 252.0,
   "end_distance_m": 277.0,
   "midpoint_distance_m": 264.5,
   "start_elevation_m": 842.6294737500681,
   "end_elevation_m": 844.3861389853479,
   "start_xy": [
    4698009.0280840825,
    2718103.6325936643
   ],
   "end_xy": [
    4698008.00938575,
    2718127.604880396
   ]
  },
  "min_50m": {
   "gradient_pct": 9.394982119448741,
   "start_distance_m": 247.0,
   "end_distance_m": 297.0,
   "midpoint_distance_m": 272.0,
   "start_elevation_m": 841.9564012240536,
   "end_elevation_m": 846.653892283778,
   "start_xy": [
    4698005.498922953,
    2718100.0906984485
   ],
   "end_xy": [
    4698000.8592264885,
    2718146.2634029114
   ]
  },
  "min_100m": {
   "gradient_pct": 12.352146526265074,
   "start_distance_m": 200.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 250.0,
   "start_elevation_m": 834.8016471702746,
   "end_elevation_m": 847.1537936965397,
   "start_xy": [
    4697960.470402758,
    2718096.9133799155
   ],
   "end_xy": [
    4697999.886609827,
    2718149.1013628882
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.5090262661231,
   "start_distance_m": 111.0,
   "end_distance_m": 113.0,
   "midpoint_distance_m": 112.0,
   "start_elevation_m": 817.9942929391423,
   "end_elevation_m": 818.4644734644647,
   "start_xy": [
    4697882.976754755,
    2718055.9699480827
   ],
   "end_xy": [
    4697884.857872704,
    2718056.645223771
   ]
  },
  "max_3m": {
   "gradient_pct": 22.248090751152933,
   "start_distance_m": 111.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 112.5,
   "start_elevation_m": 817.9942929391423,
   "end_elevation_m": 818.6617356616769,
   "start_xy": [
    4697882.976754755,
    2718055.9699480827
   ],
   "end_xy": [
    4697885.791296861,
    2718057.0039985524
   ]
  }
 },
 "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": 0.166,
   "obstruction_max_height_m": 15.88,
   "flagged_windows_m": [
    5,
    10,
    20,
    25,
    50
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "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_E4697-N2717.tif",
   "data/cache/at/bev-als_dtm_E4697-N2718.tif",
   "data/cache/at/bev-als_dtm_E4698-N2717.tif",
   "data/cache/at/bev-als_dtm_E4698-N2718.tif"
  ],
  "calculated_at": "2026-09-11T07:26:39+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": [
   "E4697-N2717",
   "E4697-N2718",
   "E4698-N2717",
   "E4698-N2718"
  ],
  "elevation_blocks": [
   "N2700000E4650000@2022-09-15"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Trofaiach",
  "county": "Steiermark",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}