{
 "ocl_version": "0.1.0",
 "name": "Grundnerweg",
 "slug": "grundnerweg",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.44882008286504,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3607.0,
   "end_distance_m": 3609.0,
   "start_elevation_m": 1295.201042305628,
   "end_elevation_m": 1295.6700187072854,
   "min_gradient_pct": -13.722301575955953
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.786444530015615,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3607.0,
   "end_distance_m": 3610.0,
   "start_elevation_m": 1295.201042305628,
   "end_elevation_m": 1295.8846356415286,
   "min_gradient_pct": -12.043072527330878
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.34387610858994,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3606.0,
   "end_distance_m": 3611.0,
   "start_elevation_m": 1295.0073669657045,
   "end_elevation_m": 1296.074560771134,
   "min_gradient_pct": -11.315543778687243
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 19.66678241856698,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3606.0,
   "end_distance_m": 3616.0,
   "start_elevation_m": 1295.0073669657045,
   "end_elevation_m": 1296.9740452075612,
   "min_gradient_pct": -10.662862842557388
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.7458300388721,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3607.0,
   "end_distance_m": 3627.0,
   "start_elevation_m": 1295.201042305628,
   "end_elevation_m": 1298.9502083134025,
   "min_gradient_pct": -7.451579726269983
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.97004606203791,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3607.0,
   "end_distance_m": 3632.0,
   "start_elevation_m": 1295.201042305628,
   "end_elevation_m": 1299.9435538211376,
   "min_gradient_pct": -5.520908881377181
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.529820997717707,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3596.0,
   "end_distance_m": 3646.0,
   "start_elevation_m": 1293.5026941774213,
   "end_elevation_m": 1302.2676046762801,
   "min_gradient_pct": -1.895034776205648
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.393540021014815,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 124.0,
   "end_distance_m": 224.0,
   "start_elevation_m": 943.9804775895759,
   "end_elevation_m": 960.3740176105907,
   "min_gradient_pct": 2.794136369555872
  }
 ],
 "shape": {
  "ascent_concentration": 0.3,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 372.0,
  "shape_class": "sustained"
 },
 "length_m": 3911.5799483704964,
 "start_elevation_m": 932.9517386028285,
 "end_elevation_m": 1325.9841990174707,
 "endpoint_gain_m": 393.0324604146422,
 "overall_gradient_pct": 10.04792093226609,
 "accumulated_ascent_m": 395.5013693152648,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.34387610858994,
   "start_distance_m": 3606.0,
   "end_distance_m": 3611.0,
   "midpoint_distance_m": 3608.5,
   "start_elevation_m": 1295.0073669657045,
   "end_elevation_m": 1296.074560771134,
   "start_xy": [
    4586741.135833847,
    2698366.451006425
   ],
   "end_xy": [
    4586744.952372351,
    2698369.662155796
   ]
  },
  "max_10m": {
   "gradient_pct": 19.66678241856698,
   "start_distance_m": 3606.0,
   "end_distance_m": 3616.0,
   "midpoint_distance_m": 3611.0,
   "start_elevation_m": 1295.0073669657045,
   "end_elevation_m": 1296.9740452075612,
   "start_xy": [
    4586741.135833847,
    2698366.451006425
   ],
   "end_xy": [
    4586748.655041434,
    2698373.0222512796
   ]
  },
  "max_20m": {
   "gradient_pct": 18.7458300388721,
   "start_distance_m": 3607.0,
   "end_distance_m": 3627.0,
   "midpoint_distance_m": 3617.0,
   "start_elevation_m": 1295.201042305628,
   "end_elevation_m": 1298.9502083134025,
   "start_xy": [
    4586741.978542012,
    2698366.989377067
   ],
   "end_xy": [
    4586755.177761181,
    2698381.7377639767
   ]
  },
  "max_25m": {
   "gradient_pct": 18.97004606203791,
   "start_distance_m": 3607.0,
   "end_distance_m": 3632.0,
   "midpoint_distance_m": 3619.5,
   "start_elevation_m": 1295.201042305628,
   "end_elevation_m": 1299.9435538211376,
   "start_xy": [
    4586741.978542012,
    2698366.989377067
   ],
   "end_xy": [
    4586757.723084644,
    2698386.04140528
   ]
  },
  "max_50m": {
   "gradient_pct": 17.529820997717707,
   "start_distance_m": 3596.0,
   "end_distance_m": 3646.0,
   "midpoint_distance_m": 3621.0,
   "start_elevation_m": 1293.5026941774213,
   "end_elevation_m": 1302.2676046762801,
   "start_xy": [
    4586732.708752195,
    2698361.067300004
   ],
   "end_xy": [
    4586762.599756251,
    2698399.162181752
   ]
  },
  "max_100m": {
   "gradient_pct": 16.393540021014815,
   "start_distance_m": 124.0,
   "end_distance_m": 224.0,
   "midpoint_distance_m": 174.0,
   "start_elevation_m": 943.9804775895759,
   "end_elevation_m": 960.3740176105907,
   "start_xy": [
    4585943.367251595,
    2698282.5733462772
   ],
   "end_xy": [
    4586034.694990006,
    2698296.4172139275
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.315543778687243,
   "start_distance_m": 3906.0,
   "end_distance_m": 3911.0,
   "midpoint_distance_m": 3908.5,
   "start_elevation_m": 1326.6165603708089,
   "end_elevation_m": 1326.0507831818745,
   "start_xy": [
    4586824.677408872,
    2698639.467567374
   ],
   "end_xy": [
    4586823.136705663,
    2698644.224271445
   ]
  },
  "min_10m": {
   "gradient_pct": -10.662862842557388,
   "start_distance_m": 3901.0,
   "end_distance_m": 3911.0,
   "midpoint_distance_m": 3906.0,
   "start_elevation_m": 1327.1170694661303,
   "end_elevation_m": 1326.0507831818745,
   "start_xy": [
    4586826.218112081,
    2698634.710863303
   ],
   "end_xy": [
    4586823.136705663,
    2698644.224271445
   ]
  },
  "min_20m": {
   "gradient_pct": -7.451579726269983,
   "start_distance_m": 3891.0,
   "end_distance_m": 3911.0,
   "midpoint_distance_m": 3901.0,
   "start_elevation_m": 1327.5410991271285,
   "end_elevation_m": 1326.0507831818745,
   "start_xy": [
    4586828.130878302,
    2698624.9852706697
   ],
   "end_xy": [
    4586823.136705663,
    2698644.224271445
   ]
  },
  "min_25m": {
   "gradient_pct": -5.520908881377181,
   "start_distance_m": 3886.0,
   "end_distance_m": 3911.0,
   "midpoint_distance_m": 3898.5,
   "start_elevation_m": 1327.4310104022188,
   "end_elevation_m": 1326.0507831818745,
   "start_xy": [
    4586827.792529068,
    2698620.038695867
   ],
   "end_xy": [
    4586823.136705663,
    2698644.224271445
   ]
  },
  "min_50m": {
   "gradient_pct": -1.895034776205648,
   "start_distance_m": 3861.0,
   "end_distance_m": 3911.0,
   "midpoint_distance_m": 3886.0,
   "start_elevation_m": 1326.9983005699773,
   "end_elevation_m": 1326.0507831818745,
   "start_xy": [
    4586821.492364611,
    2698596.2589589786
   ],
   "end_xy": [
    4586823.136705663,
    2698644.224271445
   ]
  },
  "min_100m": {
   "gradient_pct": 2.794136369555872,
   "start_distance_m": 3811.0,
   "end_distance_m": 3911.0,
   "midpoint_distance_m": 3861.0,
   "start_elevation_m": 1323.2566468123186,
   "end_elevation_m": 1326.0507831818745,
   "start_xy": [
    4586820.605829397,
    2698547.5243630623
   ],
   "end_xy": [
    4586823.136705663,
    2698644.224271445
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.44882008286504,
   "start_distance_m": 3607.0,
   "end_distance_m": 3609.0,
   "midpoint_distance_m": 3608.0,
   "start_elevation_m": 1295.201042305628,
   "end_elevation_m": 1295.6700187072854,
   "start_xy": [
    4586741.978542012,
    2698366.989377067
   ],
   "end_xy": [
    4586743.4713047175,
    2698368.3181176027
   ]
  },
  "max_3m": {
   "gradient_pct": 22.786444530015615,
   "start_distance_m": 3607.0,
   "end_distance_m": 3610.0,
   "midpoint_distance_m": 3608.5,
   "start_elevation_m": 1295.201042305628,
   "end_elevation_m": 1295.8846356415286,
   "start_xy": [
    4586741.978542012,
    2698366.989377067
   ],
   "end_xy": [
    4586744.211838534,
    2698368.9901366993
   ]
  }
 },
 "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": 0.037,
   "obstruction_max_height_m": 16.11,
   "flagged_windows_m": []
  },
  "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_E4585-N2698.tif",
   "data/cache/at/bev-als_dtm_E4586-N2698.tif"
  ],
  "calculated_at": "2026-09-12T23:29:00+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-run4-260912",
  "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": [
   "E4585-N2698",
   "E4586-N2698"
  ],
  "elevation_blocks": [
   "N2650000E4550000@2022-09-15"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Untertauern",
  "county": "Salzburg",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}