{
 "ocl_version": "0.1.0",
 "name": "Altes Bahntrasse",
 "slug": "altes-bahntrasse",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.93177295810665,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 42.0,
   "end_distance_m": 44.0,
   "start_elevation_m": 702.0472390643442,
   "end_elevation_m": 702.6058745235064,
   "min_gradient_pct": -210.53680707640865,
   "suppressed_max_gradient_pct": 280.8439320359355,
   "suppressed_location_m": [
    163.0,
    165.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.4623866649866,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 41.0,
   "end_distance_m": 44.0,
   "start_elevation_m": 701.7820029235568,
   "end_elevation_m": 702.6058745235064,
   "min_gradient_pct": -141.83205517393466,
   "suppressed_max_gradient_pct": 198.59110373094305,
   "suppressed_location_m": [
    162.0,
    165.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.378832473023067,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 40.0,
   "end_distance_m": 45.0,
   "start_elevation_m": 701.49986548697,
   "end_elevation_m": 702.8688071106211,
   "min_gradient_pct": -84.09286533196564,
   "suppressed_max_gradient_pct": 125.22509820136065,
   "suppressed_location_m": [
    162.0,
    167.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.21376662699049,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 35.0,
   "end_distance_m": 45.0,
   "start_elevation_m": 700.247430447922,
   "end_elevation_m": 702.8688071106211,
   "min_gradient_pct": -39.20300934373586,
   "suppressed_max_gradient_pct": 69.76939317033043,
   "suppressed_location_m": [
    162.0,
    172.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.594466636816037,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 25.0,
   "end_distance_m": 45.0,
   "start_elevation_m": 697.9499137832579,
   "end_elevation_m": 702.8688071106211,
   "min_gradient_pct": -12.214009075639183,
   "suppressed_max_gradient_pct": 42.03953437823145,
   "suppressed_location_m": [
    162.0,
    182.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.278595613752714,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 20.0,
   "end_distance_m": 45.0,
   "start_elevation_m": 696.7991582071829,
   "end_elevation_m": 702.8688071106211,
   "min_gradient_pct": -6.769122890403651,
   "suppressed_max_gradient_pct": 36.403063048420336,
   "suppressed_location_m": [
    162.0,
    187.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.069042093170765,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "start_elevation_m": 692.3682365722678,
   "end_elevation_m": 703.4027576188532,
   "min_gradient_pct": 2.1840785659335324,
   "suppressed_max_gradient_pct": 25.800492325429786,
   "suppressed_location_m": [
    162.0,
    212.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.6001759283414,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "start_elevation_m": 692.3682365722678,
   "end_elevation_m": 707.9684125006092,
   "min_gradient_pct": 5.825255529001652,
   "suppressed_max_gradient_pct": 20.039787296558302,
   "suppressed_location_m": [
    162.0,
    262.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.387,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 110.0,
  "shape_class": "sustained"
 },
 "length_m": 412.7000000000969,
 "start_elevation_m": 692.3682365722678,
 "end_elevation_m": 747.755759803154,
 "endpoint_gain_m": 55.38752323088613,
 "overall_gradient_pct": 13.42077131836034,
 "accumulated_ascent_m": 63.80834735311555,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.378832473023067,
   "start_distance_m": 40.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 42.5,
   "start_elevation_m": 701.49986548697,
   "end_elevation_m": 702.8688071106211,
   "start_xy": [
    2615005.9987736233,
    1129372.0979953264
   ],
   "end_xy": [
    2615009.3218001383,
    1129375.8339679749
   ]
  },
  "max_10m": {
   "gradient_pct": 26.21376662699049,
   "start_distance_m": 35.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 40.0,
   "start_elevation_m": 700.247430447922,
   "end_elevation_m": 702.8688071106211,
   "start_xy": [
    2615002.6747490293,
    1129368.362910564
   ],
   "end_xy": [
    2615009.3218001383,
    1129375.8339679749
   ]
  },
  "max_20m": {
   "gradient_pct": 24.594466636816037,
   "start_distance_m": 25.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 35.0,
   "start_elevation_m": 697.9499137832579,
   "end_elevation_m": 702.8688071106211,
   "start_xy": [
    2614996.0276699527,
    1129360.8918786969
   ],
   "end_xy": [
    2615009.3218001383,
    1129375.8339679749
   ]
  },
  "max_25m": {
   "gradient_pct": 24.278595613752714,
   "start_distance_m": 20.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 32.5,
   "start_elevation_m": 696.7991582071829,
   "end_elevation_m": 702.8688071106211,
   "start_xy": [
    2614992.7036452717,
    1129357.1567940118
   ],
   "end_xy": [
    2615009.3218001383,
    1129375.8339679749
   ]
  },
  "max_50m": {
   "gradient_pct": 22.069042093170765,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 692.3682365722678,
   "end_elevation_m": 703.4027576188532,
   "start_xy": [
    2614986.465,
    1129340.47
   ],
   "end_xy": [
    2615011.0624263654,
    1129379.6911348302
   ]
  },
  "max_100m": {
   "gradient_pct": 15.6001759283414,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 692.3682365722678,
   "end_elevation_m": 707.9684125006092,
   "start_xy": [
    2614986.465,
    1129340.47
   ],
   "end_xy": [
    2614980.9959249073,
    1129419.5984161594
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -84.09286533196564,
   "start_distance_m": 226.0,
   "end_distance_m": 231.0,
   "midpoint_distance_m": 228.5,
   "start_elevation_m": 725.526282747231,
   "end_elevation_m": 721.3216394806327,
   "start_xy": [
    2614970.9029054656,
    1129541.0930173432
   ],
   "end_xy": [
    2614971.5966964266,
    1129546.0446482752
   ]
  },
  "min_10m": {
   "gradient_pct": -39.20300934373586,
   "start_distance_m": 152.0,
   "end_distance_m": 162.0,
   "midpoint_distance_m": 157.0,
   "start_elevation_m": 714.302959576326,
   "end_elevation_m": 710.3826586419524,
   "start_xy": [
    2614963.1477522026,
    1129467.5579747022
   ],
   "end_xy": [
    2614963.3975967537,
    1129477.5501483048
   ]
  },
  "min_20m": {
   "gradient_pct": -12.214009075639183,
   "start_distance_m": 142.0,
   "end_distance_m": 162.0,
   "midpoint_distance_m": 152.0,
   "start_elevation_m": 712.8254604570802,
   "end_elevation_m": 710.3826586419524,
   "start_xy": [
    2614964.1882594456,
    1129457.624737766
   ],
   "end_xy": [
    2614963.3975967537,
    1129477.5501483048
   ]
  },
  "min_25m": {
   "gradient_pct": -6.769122890403651,
   "start_distance_m": 137.0,
   "end_distance_m": 162.0,
   "midpoint_distance_m": 149.5,
   "start_elevation_m": 712.0749393645533,
   "end_elevation_m": 710.3826586419524,
   "start_xy": [
    2614965.2073934656,
    1129452.733710911
   ],
   "end_xy": [
    2614963.3975967537,
    1129477.5501483048
   ]
  },
  "min_50m": {
   "gradient_pct": 2.1840785659335324,
   "start_distance_m": 112.0,
   "end_distance_m": 162.0,
   "midpoint_distance_m": 137.0,
   "start_elevation_m": 709.2906193589856,
   "end_elevation_m": 710.3826586419524,
   "start_xy": [
    2614974.3470702297,
    1129429.5880461533
   ],
   "end_xy": [
    2614963.3975967537,
    1129477.5501483048
   ]
  },
  "min_100m": {
   "gradient_pct": 5.825255529001652,
   "start_distance_m": 62.0,
   "end_distance_m": 162.0,
   "midpoint_distance_m": 112.0,
   "start_elevation_m": 704.5574031129507,
   "end_elevation_m": 710.3826586419524,
   "start_xy": [
    2615003.6144782375,
    1129389.1000693429
   ],
   "end_xy": [
    2614963.3975967537,
    1129477.5501483048
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.93177295810665,
   "start_distance_m": 42.0,
   "end_distance_m": 44.0,
   "midpoint_distance_m": 43.0,
   "start_elevation_m": 702.0472390643442,
   "end_elevation_m": 702.6058745235064,
   "start_xy": [
    2615007.3275915766,
    1129373.5927336954
   ],
   "end_xy": [
    2615008.6574079157,
    1129375.0865839054
   ]
  },
  "max_3m": {
   "gradient_pct": 27.4623866649866,
   "start_distance_m": 41.0,
   "end_distance_m": 44.0,
   "midpoint_distance_m": 42.5,
   "start_elevation_m": 701.7820029235568,
   "end_elevation_m": 702.6058745235064,
   "start_xy": [
    2615006.663140649,
    1129372.8454018123
   ],
   "end_xy": [
    2615008.6574079157,
    1129375.0865839054
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.286,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    124.0,
    185.0
   ],
   [
    196.0,
    251.0
   ]
  ],
  "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:2056",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/ch/swissalti3d_2024_2614-1129_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2615-1129_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T06:43:15+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10-batch.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ch-run7-extent-260911",
  "elevation_provider": "swisstopo swissALTI3D",
  "elevation_licence": "swisstopo open government data (OGD): free use, attribution '\u00a9 swisstopo' \u2014 https://www.swisstopo.admin.ch/en/terms-and-conditions",
  "elevation_dataset": "swissALTI3D 0.5 m DTM (Federal Office of Topography swisstopo)",
  "elevation_tile_ids": [
   "2614-1129",
   "2615-1129"
  ],
  "route_cut_m": 412.7,
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Leuk",
  "county": "Valais/Wallis",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}