{
 "ocl_version": "0.1.0",
 "name": "Brunnenweg",
 "slug": "brunnenweg",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.941738741702693,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 448.0,
   "end_distance_m": 450.0,
   "start_elevation_m": 442.4402113673871,
   "end_elevation_m": 442.9990461422212,
   "min_gradient_pct": -6.047693438648594
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.393269977610164,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 448.0,
   "end_distance_m": 451.0,
   "start_elevation_m": 442.4402113673871,
   "end_elevation_m": 443.2620094667154,
   "min_gradient_pct": -5.94599245500073
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.647719956496303,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 446.0,
   "end_distance_m": 451.0,
   "start_elevation_m": 441.9296234688906,
   "end_elevation_m": 443.2620094667154,
   "min_gradient_pct": -5.939241335256611
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.451997513148058,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 441.0,
   "end_distance_m": 451.0,
   "start_elevation_m": 440.6168097154006,
   "end_elevation_m": 443.2620094667154,
   "min_gradient_pct": -5.44954669428364
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 25.983507416913767,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 437.0,
   "end_distance_m": 457.0,
   "start_elevation_m": 439.6281444971198,
   "end_elevation_m": 444.8248459805026,
   "min_gradient_pct": -4.634666131103984
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 25.60429320561525,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 440.0,
   "end_distance_m": 465.0,
   "start_elevation_m": 440.36690924881293,
   "end_elevation_m": 446.76798255021674,
   "min_gradient_pct": -4.495401989006496
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 24.460886211955312,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 419.0,
   "end_distance_m": 469.0,
   "start_elevation_m": 435.4768975877207,
   "end_elevation_m": 447.70734069369837,
   "min_gradient_pct": -4.0003260293984795
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.410941875351,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 376.0,
   "end_distance_m": 476.0,
   "start_elevation_m": 428.578981744549,
   "end_elevation_m": 448.9899236199,
   "min_gradient_pct": -3.4669259914925874
  }
 ],
 "shape": {
  "ascent_concentration": 0.512,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 142.0,
  "shape_class": "stepped"
 },
 "length_m": 526.4995531818169,
 "start_elevation_m": 411.56063602870427,
 "end_elevation_m": 454.0821291982504,
 "endpoint_gain_m": 42.52149316954615,
 "overall_gradient_pct": 8.076263866241524,
 "accumulated_ascent_m": 47.16558784957033,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.647719956496303,
   "start_distance_m": 446.0,
   "end_distance_m": 451.0,
   "midpoint_distance_m": 448.5,
   "start_elevation_m": 441.9296234688906,
   "end_elevation_m": 443.2620094667154,
   "start_xy": [
    4712223.4425413525,
    2671784.7496690173
   ],
   "end_xy": [
    4712223.4015427,
    2671779.749837509
   ]
  },
  "max_10m": {
   "gradient_pct": 26.451997513148058,
   "start_distance_m": 441.0,
   "end_distance_m": 451.0,
   "midpoint_distance_m": 446.0,
   "start_elevation_m": 440.6168097154006,
   "end_elevation_m": 443.2620094667154,
   "start_xy": [
    4712223.483540004,
    2671789.7495005256
   ],
   "end_xy": [
    4712223.4015427,
    2671779.749837509
   ]
  },
  "max_20m": {
   "gradient_pct": 25.983507416913767,
   "start_distance_m": 437.0,
   "end_distance_m": 457.0,
   "midpoint_distance_m": 447.0,
   "start_elevation_m": 439.6281444971198,
   "end_elevation_m": 444.8248459805026,
   "start_xy": [
    4712223.515856328,
    2671793.749369834
   ],
   "end_xy": [
    4712223.351853395,
    2671773.7500438765
   ]
  },
  "max_25m": {
   "gradient_pct": 25.60429320561525,
   "start_distance_m": 440.0,
   "end_distance_m": 465.0,
   "midpoint_distance_m": 452.5,
   "start_elevation_m": 440.36690924881293,
   "end_elevation_m": 446.76798255021674,
   "start_xy": [
    4712223.491539748,
    2671790.749468527
   ],
   "end_xy": [
    4712223.286538488,
    2671765.750311058
   ]
  },
  "max_50m": {
   "gradient_pct": 24.460886211955312,
   "start_distance_m": 419.0,
   "end_distance_m": 469.0,
   "midpoint_distance_m": 444.0,
   "start_elevation_m": 435.4768975877207,
   "end_elevation_m": 447.70734069369837,
   "start_xy": [
    4712223.6635421,
    2671811.7487624977
   ],
   "end_xy": [
    4712224.323486241,
    2671761.936524241
   ]
  },
  "max_100m": {
   "gradient_pct": 20.410941875351,
   "start_distance_m": 376.0,
   "end_distance_m": 476.0,
   "midpoint_distance_m": 426.0,
   "start_elevation_m": 428.578981744549,
   "end_elevation_m": 448.9899236199,
   "start_xy": [
    4712224.01653848,
    2671854.7473100047
   ],
   "end_xy": [
    4712227.987656298,
    2671756.0933188754
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.939241335256611,
   "start_distance_m": 28.0,
   "end_distance_m": 33.0,
   "midpoint_distance_m": 30.5,
   "start_elevation_m": 412.8319521978252,
   "end_elevation_m": 412.5349901310624,
   "start_xy": [
    4712232.685016078,
    2672189.1334453947
   ],
   "end_xy": [
    4712235.466581175,
    2672184.9785817647
   ]
  },
  "min_10m": {
   "gradient_pct": -5.44954669428364,
   "start_distance_m": 25.0,
   "end_distance_m": 35.0,
   "midpoint_distance_m": 30.0,
   "start_elevation_m": 412.98554673323804,
   "end_elevation_m": 412.4405920638097,
   "start_xy": [
    4712231.016525925,
    2672191.626664194
   ],
   "end_xy": [
    4712236.578987006,
    2672183.316488845
   ]
  },
  "min_20m": {
   "gradient_pct": -4.634666131103984,
   "start_distance_m": 99.0,
   "end_distance_m": 119.0,
   "midpoint_distance_m": 109.0,
   "start_elevation_m": 410.68198742792157,
   "end_elevation_m": 409.7550542017008,
   "start_xy": [
    4712247.782372326,
    2672121.350145685
   ],
   "end_xy": [
    4712247.096698369,
    2672101.361904867
   ]
  },
  "min_25m": {
   "gradient_pct": -4.495401989006496,
   "start_distance_m": 95.0,
   "end_distance_m": 120.0,
   "midpoint_distance_m": 107.5,
   "start_elevation_m": 410.8362165985751,
   "end_elevation_m": 409.7123661013235,
   "start_xy": [
    4712247.919383136,
    2672125.347798114
   ],
   "end_xy": [
    4712247.062372806,
    2672100.3624942815
   ]
  },
  "min_50m": {
   "gradient_pct": -4.0003260293984795,
   "start_distance_m": 87.0,
   "end_distance_m": 137.0,
   "midpoint_distance_m": 112.0,
   "start_elevation_m": 411.1223356145115,
   "end_elevation_m": 409.12217259981225,
   "start_xy": [
    4712248.193370912,
    2672133.3431041585
   ],
   "end_xy": [
    4712244.24416065,
    2672083.633461804
   ]
  },
  "min_100m": {
   "gradient_pct": -3.4669259914925874,
   "start_distance_m": 25.0,
   "end_distance_m": 125.0,
   "midpoint_distance_m": 75.0,
   "start_elevation_m": 412.98554673323804,
   "end_elevation_m": 409.51862074174545,
   "start_xy": [
    4712231.016525925,
    2672191.626664194
   ],
   "end_xy": [
    4712246.611846466,
    2672095.3975611
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.941738741702693,
   "start_distance_m": 448.0,
   "end_distance_m": 450.0,
   "midpoint_distance_m": 449.0,
   "start_elevation_m": 442.4402113673871,
   "end_elevation_m": 442.9990461422212,
   "start_xy": [
    4712223.425541933,
    2671782.7497415137
   ],
   "end_xy": [
    4712223.409542444,
    2671780.7498055105
   ]
  },
  "max_3m": {
   "gradient_pct": 27.393269977610164,
   "start_distance_m": 448.0,
   "end_distance_m": 451.0,
   "midpoint_distance_m": 449.5,
   "start_elevation_m": 442.4402113673871,
   "end_elevation_m": 443.2620094667154,
   "start_xy": [
    4712223.425541933,
    2671782.7497415137
   ],
   "end_xy": [
    4712223.4015427,
    2671779.749837509
   ]
  }
 },
 "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": 0.14,
   "obstruction_max_height_m": 19.28,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "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_E4712-N2671.tif",
   "data/cache/at/bev-als_dtm_E4712-N2672.tif"
  ],
  "calculated_at": "2026-09-11T18:50:42+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-extent-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": [
   "E4712-N2671",
   "E4712-N2672"
  ],
  "elevation_blocks": [
   "N2650000E4700000@2022-09-15"
  ],
  "route_base_cut_m": 212.6,
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Voitsberg",
  "county": "Steiermark",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}