{
 "ocl_version": "0.1.0",
 "name": "Furlenstrasse",
 "slug": "furlenstrasse-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.85086825095141,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 808.0,
   "end_distance_m": 810.0,
   "start_elevation_m": 411.7502013522297,
   "end_elevation_m": 412.4872187172487,
   "min_gradient_pct": -0.10067016020229858
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.978840691362166,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 807.0,
   "end_distance_m": 810.0,
   "start_elevation_m": 411.49785349650784,
   "end_elevation_m": 412.4872187172487,
   "min_gradient_pct": 0.07132726167734897
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.428876826342503,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 805.0,
   "end_distance_m": 810.0,
   "start_elevation_m": 411.0157748759316,
   "end_elevation_m": 412.4872187172487,
   "min_gradient_pct": 0.7435908645845757
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.749904160656115,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 800.0,
   "end_distance_m": 810.0,
   "start_elevation_m": 409.8122283011831,
   "end_elevation_m": 412.4872187172487,
   "min_gradient_pct": 1.5032141327509407
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 25.066082764111854,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 790.0,
   "end_distance_m": 810.0,
   "start_elevation_m": 407.47400216442634,
   "end_elevation_m": 412.4872187172487,
   "min_gradient_pct": 1.9298704744937822
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.262093432732172,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 785.0,
   "end_distance_m": 810.0,
   "start_elevation_m": 406.42169535906567,
   "end_elevation_m": 412.4872187172487,
   "min_gradient_pct": 2.0006256488884446
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.752981633001696,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 764.0,
   "end_distance_m": 814.0,
   "start_elevation_m": 402.40208273625507,
   "end_elevation_m": 413.2785735527559,
   "min_gradient_pct": 2.2167170502009412
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.895582280717065,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 714.0,
   "end_distance_m": 814.0,
   "start_elevation_m": 396.38299127203885,
   "end_elevation_m": 413.2785735527559,
   "min_gradient_pct": 2.6935616395429633
  }
 ],
 "shape": {
  "ascent_concentration": 0.395,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 78.0,
  "shape_class": "sustained"
 },
 "length_m": 814.450950985068,
 "start_elevation_m": 354.6815530988938,
 "end_elevation_m": 413.3550671069588,
 "endpoint_gain_m": 58.67351400806501,
 "overall_gradient_pct": 7.204057400522419,
 "accumulated_ascent_m": 58.72116367277624,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.428876826342503,
   "start_distance_m": 805.0,
   "end_distance_m": 810.0,
   "midpoint_distance_m": 807.5,
   "start_elevation_m": 411.0157748759316,
   "end_elevation_m": 412.4872187172487,
   "start_xy": [
    2624032.26799588,
    1256880.1842123156
   ],
   "end_xy": [
    2624027.2832316076,
    1256879.7941928366
   ]
  },
  "max_10m": {
   "gradient_pct": 26.749904160656115,
   "start_distance_m": 800.0,
   "end_distance_m": 810.0,
   "midpoint_distance_m": 805.0,
   "start_elevation_m": 409.8122283011831,
   "end_elevation_m": 412.4872187172487,
   "start_xy": [
    2624037.2530357195,
    1256880.5706998499
   ],
   "end_xy": [
    2624027.2832316076,
    1256879.7941928366
   ]
  },
  "max_20m": {
   "gradient_pct": 25.066082764111854,
   "start_distance_m": 790.0,
   "end_distance_m": 810.0,
   "midpoint_distance_m": 800.0,
   "start_elevation_m": 407.47400216442634,
   "end_elevation_m": 412.4872187172487,
   "start_xy": [
    2624047.228422248,
    1256881.256657236
   ],
   "end_xy": [
    2624027.2832316076,
    1256879.7941928366
   ]
  },
  "max_25m": {
   "gradient_pct": 24.262093432732172,
   "start_distance_m": 785.0,
   "end_distance_m": 810.0,
   "midpoint_distance_m": 797.5,
   "start_elevation_m": 406.42169535906567,
   "end_elevation_m": 412.4872187172487,
   "start_xy": [
    2624052.223688909,
    1256881.474153777
   ],
   "end_xy": [
    2624027.2832316076,
    1256879.7941928366
   ]
  },
  "max_50m": {
   "gradient_pct": 21.752981633001696,
   "start_distance_m": 764.0,
   "end_distance_m": 814.0,
   "midpoint_distance_m": 789.0,
   "start_elevation_m": 402.40208273625507,
   "end_elevation_m": 413.2785735527559,
   "start_xy": [
    2624073.2038508016,
    1256882.3866761115
   ],
   "end_xy": [
    2624023.295576964,
    1256879.480175904
   ]
  },
  "max_100m": {
   "gradient_pct": 16.895582280717065,
   "start_distance_m": 714.0,
   "end_distance_m": 814.0,
   "midpoint_distance_m": 764.0,
   "start_elevation_m": 396.38299127203885,
   "end_elevation_m": 413.2785735527559,
   "start_xy": [
    2624107.103565135,
    1256901.0701376353
   ],
   "end_xy": [
    2624023.295576964,
    1256879.480175904
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.7435908645845757,
   "start_distance_m": 573.0,
   "end_distance_m": 578.0,
   "midpoint_distance_m": 575.5,
   "start_elevation_m": 388.3147386266865,
   "end_elevation_m": 388.35191816991573,
   "start_xy": [
    2624113.9440943873,
    1257040.3477800013
   ],
   "end_xy": [
    2624117.204898753,
    1257036.5648276354
   ]
  },
  "min_10m": {
   "gradient_pct": 1.5032141327509407,
   "start_distance_m": 569.0,
   "end_distance_m": 579.0,
   "midpoint_distance_m": 574.0,
   "start_elevation_m": 388.2182987120635,
   "end_elevation_m": 388.36862012533857,
   "start_xy": [
    2624111.3078109715,
    1257043.3561034135
   ],
   "end_xy": [
    2624117.514315038,
    1257035.6402444055
   ]
  },
  "min_20m": {
   "gradient_pct": 1.9298704744937822,
   "start_distance_m": 428.0,
   "end_distance_m": 448.0,
   "midpoint_distance_m": 438.0,
   "start_elevation_m": 383.0822597277838,
   "end_elevation_m": 383.4682338226826,
   "start_xy": [
    2624137.489267494,
    1257174.8185898885
   ],
   "end_xy": [
    2624130.6477449266,
    1257156.0259586703
   ]
  },
  "min_25m": {
   "gradient_pct": 2.0006256488884446,
   "start_distance_m": 420.0,
   "end_distance_m": 445.0,
   "midpoint_distance_m": 432.5,
   "start_elevation_m": 382.9002447583123,
   "end_elevation_m": 383.4004011705344,
   "start_xy": [
    2624140.033224387,
    1257182.4033300094
   ],
   "end_xy": [
    2624131.6836060407,
    1257158.8414494852
   ]
  },
  "min_50m": {
   "gradient_pct": 2.2167170502009412,
   "start_distance_m": 398.0,
   "end_distance_m": 448.0,
   "midpoint_distance_m": 423.0,
   "start_elevation_m": 382.3598752975821,
   "end_elevation_m": 383.4682338226826,
   "start_xy": [
    2624146.485626648,
    1257203.42199685
   ],
   "end_xy": [
    2624130.6477449266,
    1257156.0259586703
   ]
  },
  "min_100m": {
   "gradient_pct": 2.6935616395429633,
   "start_distance_m": 379.0,
   "end_distance_m": 479.0,
   "midpoint_distance_m": 429.0,
   "start_elevation_m": 381.79339117111283,
   "end_elevation_m": 384.4869528106558,
   "start_xy": [
    2624151.192644755,
    1257221.8297101718
   ],
   "end_xy": [
    2624119.503606862,
    1257127.1112262034
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.85086825095141,
   "start_distance_m": 808.0,
   "end_distance_m": 810.0,
   "midpoint_distance_m": 809.0,
   "start_elevation_m": 411.7502013522297,
   "end_elevation_m": 412.4872187172487,
   "start_xy": [
    2624029.2770576887,
    1256879.9512171512
   ],
   "end_xy": [
    2624027.2832316076,
    1256879.7941928366
   ]
  },
  "max_3m": {
   "gradient_pct": 32.978840691362166,
   "start_distance_m": 807.0,
   "end_distance_m": 810.0,
   "midpoint_distance_m": 808.5,
   "start_elevation_m": 411.49785349650784,
   "end_elevation_m": 412.4872187172487,
   "start_xy": [
    2624030.2740113316,
    1256880.0292135244
   ],
   "end_xy": [
    2624027.2832316076,
    1256879.7941928366
   ]
  }
 },
 "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": {
  "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:2056",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/ch/swissalti3d_2025_2624-1256_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2624-1257_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T06:46:01+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": [
   "2624-1256",
   "2624-1257"
  ],
  "route_base_cut_m": 150.8,
  "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": "Lausen",
  "county": "Basel-Landschaft",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}