{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.2642, 12.2979)",
 "slug": "discovered-lane-47-2642-12-2979",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.0946285999039,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1900.0,
   "end_distance_m": 1902.0,
   "start_elevation_m": 1415.2044822280775,
   "end_elevation_m": 1415.6663748000756,
   "min_gradient_pct": -1.357974703319087
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.621288232949155,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1899.0,
   "end_distance_m": 1902.0,
   "start_elevation_m": 1414.987736153087,
   "end_elevation_m": 1415.6663748000756,
   "min_gradient_pct": -0.36298759678174974
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.526864009142628,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1899.0,
   "end_distance_m": 1904.0,
   "start_elevation_m": 1414.987736153087,
   "end_elevation_m": 1416.0640793535442,
   "min_gradient_pct": 1.1792821082872251
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.39220833275749,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1791.0,
   "end_distance_m": 1801.0,
   "start_elevation_m": 1397.7427416794176,
   "end_elevation_m": 1399.7819625126933,
   "min_gradient_pct": 3.623771918373677
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.384852825919552,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1330.0,
   "end_distance_m": 1350.0,
   "start_elevation_m": 1333.6841676823433,
   "end_elevation_m": 1337.5611382475272,
   "min_gradient_pct": 6.286932523635187
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.159721901280136,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1326.0,
   "end_distance_m": 1351.0,
   "start_elevation_m": 1332.958680301503,
   "end_elevation_m": 1337.748610776823,
   "min_gradient_pct": 6.915063462247417
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.360611177829924,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1300.0,
   "end_distance_m": 1350.0,
   "start_elevation_m": 1328.3808326586122,
   "end_elevation_m": 1337.5611382475272,
   "min_gradient_pct": 8.60964965565745
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.87734501488285,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1286.0,
   "end_distance_m": 1386.0,
   "start_elevation_m": 1325.9847511695739,
   "end_elevation_m": 1343.8620961844567,
   "min_gradient_pct": 10.321076502580809
  }
 ],
 "shape": {
  "ascent_concentration": 0.273,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 659.0,
  "shape_class": "sustained"
 },
 "length_m": 2797.9321366115614,
 "start_elevation_m": 1159.06565712894,
 "end_elevation_m": 1536.4217764837576,
 "endpoint_gain_m": 377.35611935481757,
 "overall_gradient_pct": 13.486964691424399,
 "accumulated_ascent_m": 377.3898230350451,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.526864009142628,
   "start_distance_m": 1899.0,
   "end_distance_m": 1904.0,
   "midpoint_distance_m": 1901.5,
   "start_elevation_m": 1414.987736153087,
   "end_elevation_m": 1416.0640793535442,
   "start_xy": [
    4495174.438087709,
    2686417.8840863155
   ],
   "end_xy": [
    4495179.437494086,
    2686417.961092411
   ]
  },
  "max_10m": {
   "gradient_pct": 20.39220833275749,
   "start_distance_m": 1791.0,
   "end_distance_m": 1801.0,
   "midpoint_distance_m": 1796.0,
   "start_elevation_m": 1397.7427416794176,
   "end_elevation_m": 1399.7819625126933,
   "start_xy": [
    4495099.740154922,
    2686398.452007821
   ],
   "end_xy": [
    4495090.658960003,
    2686402.5638761926
   ]
  },
  "max_20m": {
   "gradient_pct": 19.384852825919552,
   "start_distance_m": 1330.0,
   "end_distance_m": 1350.0,
   "midpoint_distance_m": 1340.0,
   "start_elevation_m": 1333.6841676823433,
   "end_elevation_m": 1337.5611382475272,
   "start_xy": [
    4495119.678666924,
    2686256.417384778
   ],
   "end_xy": [
    4495139.645168821,
    2686255.9792736624
   ]
  },
  "max_25m": {
   "gradient_pct": 19.159721901280136,
   "start_distance_m": 1326.0,
   "end_distance_m": 1351.0,
   "midpoint_distance_m": 1338.5,
   "start_elevation_m": 1332.958680301503,
   "end_elevation_m": 1337.748610776823,
   "start_xy": [
    4495115.74074732,
    2686257.119370398
   ],
   "end_xy": [
    4495140.64328343,
    2686256.0360157536
   ]
  },
  "max_50m": {
   "gradient_pct": 18.360611177829924,
   "start_distance_m": 1300.0,
   "end_distance_m": 1350.0,
   "midpoint_distance_m": 1325.0,
   "start_elevation_m": 1328.3808326586122,
   "end_elevation_m": 1337.5611382475272,
   "start_xy": [
    4495089.990445491,
    2686259.6440605344
   ],
   "end_xy": [
    4495139.645168821,
    2686255.9792736624
   ]
  },
  "max_100m": {
   "gradient_pct": 17.87734501488285,
   "start_distance_m": 1286.0,
   "end_distance_m": 1386.0,
   "midpoint_distance_m": 1336.0,
   "start_elevation_m": 1325.9847511695739,
   "end_elevation_m": 1343.8620961844567,
   "start_xy": [
    4495075.995797437,
    2686259.2570463284
   ],
   "end_xy": [
    4495174.747829108,
    2686263.229463366
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.1792821082872251,
   "start_distance_m": 177.0,
   "end_distance_m": 182.0,
   "midpoint_distance_m": 179.5,
   "start_elevation_m": 1182.338031936071,
   "end_elevation_m": 1182.3969960414854,
   "start_xy": [
    4495241.344484972,
    2685898.701638146
   ],
   "end_xy": [
    4495237.2525083795,
    2685901.330038115
   ]
  },
  "min_10m": {
   "gradient_pct": 3.623771918373677,
   "start_distance_m": 177.0,
   "end_distance_m": 187.0,
   "midpoint_distance_m": 182.0,
   "start_elevation_m": 1182.338031936071,
   "end_elevation_m": 1182.7004091279084,
   "start_xy": [
    4495241.344484972,
    2685898.701638146
   ],
   "end_xy": [
    4495232.595362169,
    2685902.2927648826
   ]
  },
  "min_20m": {
   "gradient_pct": 6.286932523635187,
   "start_distance_m": 177.0,
   "end_distance_m": 197.0,
   "midpoint_distance_m": 187.0,
   "start_elevation_m": 1182.338031936071,
   "end_elevation_m": 1183.595418440798,
   "start_xy": [
    4495241.344484972,
    2685898.701638146
   ],
   "end_xy": [
    4495222.817032017,
    2685900.198908715
   ]
  },
  "min_25m": {
   "gradient_pct": 6.915063462247417,
   "start_distance_m": 176.0,
   "end_distance_m": 201.0,
   "midpoint_distance_m": 188.5,
   "start_elevation_m": 1182.2469254474563,
   "end_elevation_m": 1183.9756913130182,
   "start_xy": [
    4495241.135566545,
    2685897.7644170816
   ],
   "end_xy": [
    4495218.905692897,
    2685899.361398584
   ]
  },
  "min_50m": {
   "gradient_pct": 8.60964965565745,
   "start_distance_m": 2073.0,
   "end_distance_m": 2123.0,
   "midpoint_distance_m": 2098.0,
   "start_elevation_m": 1440.138965119139,
   "end_elevation_m": 1444.4437899469676,
   "start_xy": [
    4495214.323532901,
    2686474.587357898
   ],
   "end_xy": [
    4495172.726839225,
    2686494.674223027
   ]
  },
  "min_100m": {
   "gradient_pct": 10.321076502580809,
   "start_distance_m": 731.0,
   "end_distance_m": 831.0,
   "midpoint_distance_m": 781.0,
   "start_elevation_m": 1250.8333591240867,
   "end_elevation_m": 1261.1544356266675,
   "start_xy": [
    4495172.612649218,
    2686032.558143141
   ],
   "end_xy": [
    4495080.852397547,
    2686070.611064656
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.0946285999039,
   "start_distance_m": 1900.0,
   "end_distance_m": 1902.0,
   "midpoint_distance_m": 1901.0,
   "start_elevation_m": 1415.2044822280775,
   "end_elevation_m": 1415.6663748000756,
   "start_xy": [
    4495175.437963776,
    2686417.89982342
   ],
   "end_xy": [
    4495177.437734603,
    2686417.930092111
   ]
  },
  "max_3m": {
   "gradient_pct": 22.621288232949155,
   "start_distance_m": 1899.0,
   "end_distance_m": 1902.0,
   "midpoint_distance_m": 1900.5,
   "start_elevation_m": 1414.987736153087,
   "end_elevation_m": 1415.6663748000756,
   "start_xy": [
    4495174.438087709,
    2686417.8840863155
   ],
   "end_xy": [
    4495177.437734603,
    2686417.930092111
   ]
  }
 },
 "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": 0.023,
   "obstruction_max_height_m": 7.16,
   "flagged_windows_m": []
  },
  "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_E4494-N2685.tif",
   "data/cache/at/bev-als_dtm_E4494-N2686.tif",
   "data/cache/at/bev-als_dtm_E4495-N2685.tif",
   "data/cache/at/bev-als_dtm_E4495-N2686.tif"
  ],
  "calculated_at": "2026-09-15T21:49:23+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": [
   "E4494-N2685",
   "E4494-N2686",
   "E4495-N2685",
   "E4495-N2686"
  ],
  "elevation_blocks": [
   "N2650000E4450000@2022-09-15"
  ],
  "bev_dsm_release": {
   "N2650000E4450000": "20220915"
  },
  "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": "Neukirchen am Gro\u00dfvenediger",
  "county": "Salzburg",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}