{
 "ocl_version": "0.1.0",
 "name": "Walchen",
 "slug": "walchen",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.23611620065367,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1326.0,
   "end_distance_m": 1328.0,
   "start_elevation_m": 1863.412305924999,
   "end_elevation_m": 1863.917028249012,
   "min_gradient_pct": -10.439923547596663
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.09121810751367,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1327.0,
   "end_distance_m": 1330.0,
   "start_elevation_m": 1863.6589042940452,
   "end_elevation_m": 1864.4116408372706,
   "min_gradient_pct": -9.80670458716304
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.69295274777778,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1326.0,
   "end_distance_m": 1331.0,
   "start_elevation_m": 1863.412305924999,
   "end_elevation_m": 1864.6469535623878,
   "min_gradient_pct": -8.511264671824392
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.705430383664407,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1322.0,
   "end_distance_m": 1332.0,
   "start_elevation_m": 1862.5998819001443,
   "end_elevation_m": 1864.8704249385107,
   "min_gradient_pct": -7.167784641574144
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.1729373432604,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1244.0,
   "end_distance_m": 1264.0,
   "start_elevation_m": 1848.9378888029728,
   "end_elevation_m": 1853.1724762716249,
   "min_gradient_pct": -5.17412870745261
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.14099823183642,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1240.0,
   "end_distance_m": 1265.0,
   "start_elevation_m": 1848.0876052911033,
   "end_elevation_m": 1853.3728548490624,
   "min_gradient_pct": -4.3358204846636
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.509041724417784,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1239.0,
   "end_distance_m": 1289.0,
   "start_elevation_m": 1847.9200171679306,
   "end_elevation_m": 1858.1745380301395,
   "min_gradient_pct": -3.947087832933903
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.273355970067996,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1240.0,
   "end_distance_m": 1340.0,
   "start_elevation_m": 1848.0876052911033,
   "end_elevation_m": 1866.3609612611713,
   "min_gradient_pct": -2.0137122917444685
  }
 ],
 "shape": {
  "ascent_concentration": 0.574,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 95.0,
  "shape_class": "stepped"
 },
 "length_m": 1523.3587234683769,
 "start_elevation_m": 1817.832939134629,
 "end_elevation_m": 1886.848653808675,
 "endpoint_gain_m": 69.01571467404597,
 "overall_gradient_pct": 4.530496567276765,
 "accumulated_ascent_m": 77.3740080725704,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.69295274777778,
   "start_distance_m": 1326.0,
   "end_distance_m": 1331.0,
   "midpoint_distance_m": 1328.5,
   "start_elevation_m": 1863.412305924999,
   "end_elevation_m": 1864.6469535623878,
   "start_xy": [
    4524534.638807311,
    2693922.941788404
   ],
   "end_xy": [
    4524529.695359552,
    2693923.6847697203
   ]
  },
  "max_10m": {
   "gradient_pct": 22.705430383664407,
   "start_distance_m": 1322.0,
   "end_distance_m": 1332.0,
   "midpoint_distance_m": 1327.0,
   "start_elevation_m": 1862.5998819001443,
   "end_elevation_m": 1864.8704249385107,
   "start_xy": [
    4524538.6032306915,
    2693922.4094846775
   ],
   "end_xy": [
    4524528.710706189,
    2693923.8592912243
   ]
  },
  "max_20m": {
   "gradient_pct": 21.1729373432604,
   "start_distance_m": 1244.0,
   "end_distance_m": 1264.0,
   "midpoint_distance_m": 1254.0,
   "start_elevation_m": 1848.9378888029728,
   "end_elevation_m": 1853.1724762716249,
   "start_xy": [
    4524615.267338211,
    2693923.608626281
   ],
   "end_xy": [
    4524595.77038892,
    2693921.066218563
   ]
  },
  "max_25m": {
   "gradient_pct": 21.14099823183642,
   "start_distance_m": 1240.0,
   "end_distance_m": 1265.0,
   "midpoint_distance_m": 1252.5,
   "start_elevation_m": 1848.0876052911033,
   "end_elevation_m": 1853.3728548490624,
   "start_xy": [
    4524619.189580687,
    2693922.8237607195
   ],
   "end_xy": [
    4524594.797372257,
    2693920.835483707
   ]
  },
  "max_50m": {
   "gradient_pct": 20.509041724417784,
   "start_distance_m": 1239.0,
   "end_distance_m": 1289.0,
   "midpoint_distance_m": 1264.0,
   "start_elevation_m": 1847.9200171679306,
   "end_elevation_m": 1858.1745380301395,
   "start_xy": [
    4524620.170141307,
    2693922.6275443295
   ],
   "end_xy": [
    4524571.309723584,
    2693918.017978934
   ]
  },
  "max_100m": {
   "gradient_pct": 18.273355970067996,
   "start_distance_m": 1240.0,
   "end_distance_m": 1340.0,
   "midpoint_distance_m": 1290.0,
   "start_elevation_m": 1848.0876052911033,
   "end_elevation_m": 1866.3609612611713,
   "start_xy": [
    4524619.189580687,
    2693922.8237607195
   ],
   "end_xy": [
    4524520.833479288,
    2693925.255463257
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.511264671824392,
   "start_distance_m": 1133.0,
   "end_distance_m": 1138.0,
   "midpoint_distance_m": 1135.5,
   "start_elevation_m": 1844.2784223148751,
   "end_elevation_m": 1843.852859081284,
   "start_xy": [
    4524577.908953488,
    2693884.15782991
   ],
   "end_xy": [
    4524582.060696415,
    2693886.944051485
   ]
  },
  "min_10m": {
   "gradient_pct": -7.167784641574144,
   "start_distance_m": 1128.0,
   "end_distance_m": 1138.0,
   "midpoint_distance_m": 1133.0,
   "start_elevation_m": 1844.5696375454413,
   "end_elevation_m": 1843.852859081284,
   "start_xy": [
    4524573.708262447,
    2693881.4466604306
   ],
   "end_xy": [
    4524582.060696415,
    2693886.944051485
   ]
  },
  "min_20m": {
   "gradient_pct": -5.17412870745261,
   "start_distance_m": 1121.0,
   "end_distance_m": 1141.0,
   "midpoint_distance_m": 1131.0,
   "start_elevation_m": 1844.7992439378293,
   "end_elevation_m": 1843.7644181963387,
   "start_xy": [
    4524567.7952464735,
    2693877.7001631204
   ],
   "end_xy": [
    4524584.551742171,
    2693888.6157844304
   ]
  },
  "min_25m": {
   "gradient_pct": -4.3358204846636,
   "start_distance_m": 1118.0,
   "end_distance_m": 1143.0,
   "midpoint_distance_m": 1130.5,
   "start_elevation_m": 1844.8254216435066,
   "end_elevation_m": 1843.7414665223407,
   "start_xy": [
    4524565.190990665,
    2693876.2942705783
   ],
   "end_xy": [
    4524586.212439342,
    2693889.7302730605
   ]
  },
  "min_50m": {
   "gradient_pct": -3.947087832933903,
   "start_distance_m": 1120.0,
   "end_distance_m": 1170.0,
   "midpoint_distance_m": 1145.0,
   "start_elevation_m": 1844.8175706033262,
   "end_elevation_m": 1842.8440266868593,
   "start_xy": [
    4524566.950529906,
    2693877.164949219
   ],
   "end_xy": [
    4524608.63185115,
    2693904.775869566
   ]
  },
  "min_100m": {
   "gradient_pct": -2.0137122917444685,
   "start_distance_m": 1070.0,
   "end_distance_m": 1170.0,
   "midpoint_distance_m": 1120.0,
   "start_elevation_m": 1844.8577389786037,
   "end_elevation_m": 1842.8440266868593,
   "start_xy": [
    4524517.501165283,
    2693870.8541120477
   ],
   "end_xy": [
    4524608.63185115,
    2693904.775869566
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.23611620065367,
   "start_distance_m": 1326.0,
   "end_distance_m": 1328.0,
   "midpoint_distance_m": 1327.0,
   "start_elevation_m": 1863.412305924999,
   "end_elevation_m": 1863.917028249012,
   "start_xy": [
    4524534.638807311,
    2693922.941788404
   ],
   "end_xy": [
    4524532.65659562,
    2693923.2079402674
   ]
  },
  "max_3m": {
   "gradient_pct": 25.09121810751367,
   "start_distance_m": 1327.0,
   "end_distance_m": 1330.0,
   "midpoint_distance_m": 1328.5,
   "start_elevation_m": 1863.6589042940452,
   "end_elevation_m": 1864.4116408372706,
   "start_xy": [
    4524533.6477014655,
    2693923.0748643354
   ],
   "end_xy": [
    4524530.680012915,
    2693923.5102482163
   ]
  }
 },
 "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": 0.0,
   "obstruction_max_height_m": 1.28,
   "flagged_windows_m": []
  },
  "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_E4523-N2693.tif",
   "data/cache/at/bev-als_dtm_E4523-N2694.tif",
   "data/cache/at/bev-als_dtm_E4524-N2693.tif",
   "data/cache/at/bev-als_dtm_E4524-N2694.tif"
  ],
  "calculated_at": "2026-09-12T23:58:02+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": [
   "E4523-N2693",
   "E4523-N2694",
   "E4524-N2693",
   "E4524-N2694"
  ],
  "elevation_blocks": [
   "N2650000E4500000@2022-09-15"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Piesendorf",
  "county": "Salzburg",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}