{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.1736, 13.6477)",
 "slug": "discovered-lane-47-1736-13-6477",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.25226890371778,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 894.0,
   "end_distance_m": 896.0,
   "start_elevation_m": 1370.763952426184,
   "end_elevation_m": 1371.4889978042584,
   "min_gradient_pct": -12.512212404942602
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.42732665830772,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 893.0,
   "end_distance_m": 896.0,
   "start_elevation_m": 1370.5161780045091,
   "end_elevation_m": 1371.4889978042584,
   "min_gradient_pct": -9.278632352447858
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.875148195378642,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 599.0,
   "end_distance_m": 604.0,
   "start_elevation_m": 1330.7551945414866,
   "end_elevation_m": 1332.2489519512555,
   "min_gradient_pct": -8.525200351959938
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.137665218069742,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 595.0,
   "end_distance_m": 605.0,
   "start_elevation_m": 1329.78116219506,
   "end_elevation_m": 1332.494928716867,
   "min_gradient_pct": -6.301209749021837
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.104917532476975,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 584.0,
   "end_distance_m": 604.0,
   "start_elevation_m": 1327.4279684447602,
   "end_elevation_m": 1332.2489519512555,
   "min_gradient_pct": -3.899809886336243
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.752281180413775,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 563.0,
   "end_distance_m": 588.0,
   "start_elevation_m": 1322.5084805530932,
   "end_elevation_m": 1328.4465508481967,
   "min_gradient_pct": -3.6254753897146657
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.34128095075357,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 559.0,
   "end_distance_m": 609.0,
   "start_elevation_m": 1321.6768293122989,
   "end_elevation_m": 1333.3474697876757,
   "min_gradient_pct": -1.9732933661953211
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.61427710237922,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 540.0,
   "end_distance_m": 640.0,
   "start_elevation_m": 1317.907435769123,
   "end_elevation_m": 1338.5217128715021,
   "min_gradient_pct": 2.1102545148630725
  }
 ],
 "shape": {
  "ascent_concentration": 0.294,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 505.0,
  "shape_class": "sustained"
 },
 "length_m": 2950.899999999954,
 "start_elevation_m": 1232.3686422833434,
 "end_elevation_m": 1630.6190486964347,
 "endpoint_gain_m": 398.25040641309124,
 "overall_gradient_pct": 13.495896384597833,
 "accumulated_ascent_m": 401.997794044451,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.875148195378642,
   "start_distance_m": 599.0,
   "end_distance_m": 604.0,
   "midpoint_distance_m": 601.5,
   "start_elevation_m": 1330.7551945414866,
   "end_elevation_m": 1332.2489519512555,
   "start_xy": [
    4596418.942006773,
    2680646.445820064
   ],
   "end_xy": [
    4596423.938766035,
    2680646.6258113887
   ]
  },
  "max_10m": {
   "gradient_pct": 27.137665218069742,
   "start_distance_m": 595.0,
   "end_distance_m": 605.0,
   "midpoint_distance_m": 600.0,
   "start_elevation_m": 1329.78116219506,
   "end_elevation_m": 1332.494928716867,
   "start_xy": [
    4596414.944636631,
    2680646.3008067254
   ],
   "end_xy": [
    4596424.938117369,
    2680646.6618240494
   ]
  },
  "max_20m": {
   "gradient_pct": 24.104917532476975,
   "start_distance_m": 584.0,
   "end_distance_m": 604.0,
   "midpoint_distance_m": 594.0,
   "start_elevation_m": 1327.4279684447602,
   "end_elevation_m": 1332.2489519512555,
   "start_xy": [
    4596404.720233333,
    2680649.014557565
   ],
   "end_xy": [
    4596423.938766035,
    2680646.6258113887
   ]
  },
  "max_25m": {
   "gradient_pct": 23.752281180413775,
   "start_distance_m": 563.0,
   "end_distance_m": 588.0,
   "midpoint_distance_m": 575.5,
   "start_elevation_m": 1322.5084805530932,
   "end_elevation_m": 1328.4465508481967,
   "start_xy": [
    4596387.446917168,
    2680660.868557871
   ],
   "end_xy": [
    4596408.150204241,
    2680646.956575047
   ]
  },
  "max_50m": {
   "gradient_pct": 23.34128095075357,
   "start_distance_m": 559.0,
   "end_distance_m": 609.0,
   "midpoint_distance_m": 584.0,
   "start_elevation_m": 1321.6768293122989,
   "end_elevation_m": 1333.3474697876757,
   "start_xy": [
    4596384.346993115,
    2680663.396495937
   ],
   "end_xy": [
    4596428.935488844,
    2680646.8068013997
   ]
  },
  "max_100m": {
   "gradient_pct": 20.61427710237922,
   "start_distance_m": 540.0,
   "end_distance_m": 640.0,
   "midpoint_distance_m": 590.0,
   "start_elevation_m": 1317.907435769123,
   "end_elevation_m": 1338.5217128715021,
   "start_xy": [
    4596368.98681865,
    2680674.465091482
   ],
   "end_xy": [
    4596457.668784239,
    2680638.099778825
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.525200351959938,
   "start_distance_m": 1691.0,
   "end_distance_m": 1696.0,
   "midpoint_distance_m": 1693.5,
   "start_elevation_m": 1494.750139513737,
   "end_elevation_m": 1494.323879496139,
   "start_xy": [
    4597027.015157188,
    2680427.8270722833
   ],
   "end_xy": [
    4597029.385905951,
    2680423.6802132935
   ]
  },
  "min_10m": {
   "gradient_pct": -6.301209749021837,
   "start_distance_m": 1690.0,
   "end_distance_m": 1700.0,
   "midpoint_distance_m": 1695.0,
   "start_elevation_m": 1494.7908000645687,
   "end_elevation_m": 1494.1606790896665,
   "start_xy": [
    4597026.138371974,
    2680428.3079544813
   ],
   "end_xy": [
    4597030.54616434,
    2680419.864071015
   ]
  },
  "min_20m": {
   "gradient_pct": -3.899809886336243,
   "start_distance_m": 2930.0,
   "end_distance_m": 2950.0,
   "midpoint_distance_m": 2940.0,
   "start_elevation_m": 1631.4154154905716,
   "end_elevation_m": 1630.6354535133044,
   "start_xy": [
    4597630.052403842,
    2680144.996165124
   ],
   "end_xy": [
    4597642.430864278,
    2680129.353116746
   ]
  },
  "min_25m": {
   "gradient_pct": -3.6254753897146657,
   "start_distance_m": 2925.0,
   "end_distance_m": 2950.0,
   "midpoint_distance_m": 2937.5,
   "start_elevation_m": 1631.541822360733,
   "end_elevation_m": 1630.6354535133044,
   "start_xy": [
    4597626.7157566445,
    2680148.7199779944
   ],
   "end_xy": [
    4597642.430864278,
    2680129.353116746
   ]
  },
  "min_50m": {
   "gradient_pct": -1.9732933661953211,
   "start_distance_m": 2900.0,
   "end_distance_m": 2950.0,
   "midpoint_distance_m": 2925.0,
   "start_elevation_m": 1631.622100196402,
   "end_elevation_m": 1630.6354535133044,
   "start_xy": [
    4597609.761195485,
    2680167.0812806953
   ],
   "end_xy": [
    4597642.430864278,
    2680129.353116746
   ]
  },
  "min_100m": {
   "gradient_pct": 2.1102545148630725,
   "start_distance_m": 2850.0,
   "end_distance_m": 2950.0,
   "midpoint_distance_m": 2900.0,
   "start_elevation_m": 1628.5251989984413,
   "end_elevation_m": 1630.6354535133044,
   "start_xy": [
    4597571.895150636,
    2680199.5225391127
   ],
   "end_xy": [
    4597642.430864278,
    2680129.353116746
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.25226890371778,
   "start_distance_m": 894.0,
   "end_distance_m": 896.0,
   "midpoint_distance_m": 895.0,
   "start_elevation_m": 1370.763952426184,
   "end_elevation_m": 1371.4889978042584,
   "start_xy": [
    4596585.568621501,
    2680571.878631197
   ],
   "end_xy": [
    4596584.30634473,
    2680570.327290824
   ]
  },
  "max_3m": {
   "gradient_pct": 32.42732665830772,
   "start_distance_m": 893.0,
   "end_distance_m": 896.0,
   "midpoint_distance_m": 894.5,
   "start_elevation_m": 1370.5161780045091,
   "end_elevation_m": 1371.4889978042584,
   "start_xy": [
    4596586.199083097,
    2680572.654851561
   ],
   "end_xy": [
    4596584.30634473,
    2680570.327290824
   ]
  }
 },
 "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": 0.168,
   "obstruction_max_height_m": 28.55,
   "flagged_windows_m": [
    5,
    10,
    20,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "descends_at_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_E4595-N2680.tif",
   "data/cache/at/bev-als_dtm_E4596-N2680.tif",
   "data/cache/at/bev-als_dtm_E4597-N2679.tif",
   "data/cache/at/bev-als_dtm_E4597-N2680.tif",
   "data/cache/at/bev-als_dtm_E4598-N2677.tif",
   "data/cache/at/bev-als_dtm_E4598-N2678.tif",
   "data/cache/at/bev-als_dtm_E4598-N2679.tif",
   "data/cache/at/bev-als_dtm_E4598-N2680.tif",
   "data/cache/at/bev-als_dtm_E4599-N2677.tif",
   "data/cache/at/bev-als_dtm_E4599-N2678.tif"
  ],
  "calculated_at": "2026-09-13T07:30:29+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-extent4-260913",
  "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": [
   "E4595-N2680",
   "E4596-N2680",
   "E4597-N2679",
   "E4597-N2680",
   "E4598-N2677",
   "E4598-N2678",
   "E4598-N2679",
   "E4598-N2680",
   "E4599-N2677",
   "E4599-N2678"
  ],
  "elevation_blocks": [
   "N2650000E4550000@2022-09-15"
  ],
  "route_cut_m": 2950.9,
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Tweng",
  "county": "Salzburg",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}