{
 "ocl_version": "0.1.0",
 "name": "Chemin de la Fuzerie",
 "slug": "chemin-de-la-fuzerie",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.151605643297216,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 385.0,
   "end_distance_m": 387.0,
   "start_elevation_m": 497.9139780611683,
   "end_elevation_m": 498.4570101740342,
   "min_gradient_pct": 0.04684759704218777,
   "suppressed_max_gradient_pct": 64.28701668630765,
   "suppressed_location_m": [
    0.0,
    2.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.764311279516505,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 385.0,
   "end_distance_m": 388.0,
   "start_elevation_m": 497.9139780611683,
   "end_elevation_m": 498.6869073995538,
   "min_gradient_pct": 0.40753452603515444,
   "suppressed_max_gradient_pct": 42.97153727555951,
   "suppressed_location_m": [
    0.0,
    3.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.743367347435424,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 383.0,
   "end_distance_m": 388.0,
   "start_elevation_m": 497.549739032182,
   "end_elevation_m": 498.6869073995538,
   "min_gradient_pct": 1.909780505816343,
   "suppressed_max_gradient_pct": 27.132390669446522,
   "suppressed_location_m": [
    0.0,
    5.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.27926345355968,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min"
   ],
   "start_distance_m": 414.0,
   "end_distance_m": 424.0,
   "start_elevation_m": 503.30280977390237,
   "end_elevation_m": 505.53073611925834,
   "min_gradient_pct": 3.397213241760255,
   "suppressed_min_gradient_pct": 3.0841545658398672,
   "suppressed_min_location_m": [
    2.0,
    12.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.509025440227845,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min"
   ],
   "start_distance_m": 410.0,
   "end_distance_m": 430.0,
   "start_elevation_m": 502.45040170682427,
   "end_elevation_m": 506.75220679486983,
   "min_gradient_pct": 5.242462330439821,
   "suppressed_min_gradient_pct": 4.251718382290335,
   "suppressed_min_location_m": [
    2.0,
    22.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.129427726543554,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min"
   ],
   "start_distance_m": 410.0,
   "end_distance_m": 435.0,
   "start_elevation_m": 502.45040170682427,
   "end_elevation_m": 507.73275863846015,
   "min_gradient_pct": 6.164500405315948,
   "suppressed_min_gradient_pct": 3.9763170624296436,
   "suppressed_min_location_m": [
    2.0,
    27.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.63756115458375,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 385.0,
   "end_distance_m": 435.0,
   "start_elevation_m": 497.9139780611683,
   "end_elevation_m": 507.73275863846015,
   "min_gradient_pct": 7.26921082780018,
   "suppressed_min_gradient_pct": 6.115712145022599,
   "suppressed_min_location_m": [
    2.0,
    52.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.259190953509517,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 360.0,
   "end_distance_m": 460.0,
   "start_elevation_m": 492.9642886898444,
   "end_elevation_m": 512.2234796433539,
   "min_gradient_pct": 8.210066461437464
  }
 ],
 "shape": {
  "ascent_concentration": 0.337,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 257.0,
  "shape_class": "sustained"
 },
 "length_m": 677.3085185396271,
 "start_elevation_m": 443.9448339334308,
 "end_elevation_m": 532.4752369760729,
 "endpoint_gain_m": 88.53040304264209,
 "overall_gradient_pct": 13.070912386208601,
 "accumulated_ascent_m": 88.55377930020052,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.743367347435424,
   "start_distance_m": 383.0,
   "end_distance_m": 388.0,
   "midpoint_distance_m": 385.5,
   "start_elevation_m": 497.549739032182,
   "end_elevation_m": 498.6869073995538,
   "start_xy": [
    823187.8805019187,
    6571318.4449573355
   ],
   "end_xy": [
    823191.9605955582,
    6571315.55483002
   ]
  },
  "max_10m": {
   "gradient_pct": 22.27926345355968,
   "start_distance_m": 414.0,
   "end_distance_m": 424.0,
   "midpoint_distance_m": 419.0,
   "start_elevation_m": 503.30280977390237,
   "end_elevation_m": 505.53073611925834,
   "start_xy": [
    823210.8952641261,
    6571297.963489999
   ],
   "end_xy": [
    823219.4545832205,
    6571292.792659723
   ]
  },
  "max_20m": {
   "gradient_pct": 21.509025440227845,
   "start_distance_m": 410.0,
   "end_distance_m": 430.0,
   "midpoint_distance_m": 420.0,
   "start_elevation_m": 502.45040170682427,
   "end_elevation_m": 506.75220679486983,
   "start_xy": [
    823207.472365588,
    6571300.033215971
   ],
   "end_xy": [
    823224.6333642221,
    6571289.762770725
   ]
  },
  "max_25m": {
   "gradient_pct": 21.129427726543554,
   "start_distance_m": 410.0,
   "end_distance_m": 435.0,
   "midpoint_distance_m": 422.5,
   "start_elevation_m": 502.45040170682427,
   "end_elevation_m": 507.73275863846015,
   "start_xy": [
    823207.472365588,
    6571300.033215971
   ],
   "end_xy": [
    823228.9490150567,
    6571287.237863228
   ]
  },
  "max_50m": {
   "gradient_pct": 19.63756115458375,
   "start_distance_m": 385.0,
   "end_distance_m": 435.0,
   "midpoint_distance_m": 410.0,
   "start_elevation_m": 497.9139780611683,
   "end_elevation_m": 507.73275863846015,
   "start_xy": [
    823189.5125393745,
    6571317.288906409
   ],
   "end_xy": [
    823228.9490150567,
    6571287.237863228
   ]
  },
  "max_100m": {
   "gradient_pct": 19.259190953509517,
   "start_distance_m": 360.0,
   "end_distance_m": 460.0,
   "midpoint_distance_m": 410.0,
   "start_elevation_m": 492.9642886898444,
   "end_elevation_m": 512.2234796433539,
   "start_xy": [
    823168.8801502683,
    6571331.373893613
   ],
   "end_xy": [
    823250.8003530502,
    6571275.14431149
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.909780505816343,
   "start_distance_m": 672.0,
   "end_distance_m": 677.0,
   "midpoint_distance_m": 674.5,
   "start_elevation_m": 532.3718580901254,
   "end_elevation_m": 532.4673471154163,
   "start_xy": [
    823448.8973747761,
    6571255.17321656
   ],
   "end_xy": [
    823450.7139128643,
    6571259.831562766
   ]
  },
  "min_10m": {
   "gradient_pct": 3.397213241760255,
   "start_distance_m": 21.0,
   "end_distance_m": 31.0,
   "midpoint_distance_m": 26.0,
   "start_elevation_m": 446.0428685116016,
   "end_elevation_m": 446.38258983577765,
   "start_xy": [
    822943.2358627021,
    6571377.531750406
   ],
   "end_xy": [
    822942.6745841537,
    6571387.414157607
   ]
  },
  "min_20m": {
   "gradient_pct": 5.242462330439821,
   "start_distance_m": 21.0,
   "end_distance_m": 41.0,
   "midpoint_distance_m": 31.0,
   "start_elevation_m": 446.0428685116016,
   "end_elevation_m": 447.0913609776896,
   "start_xy": [
    822943.2358627021,
    6571377.531750406
   ],
   "end_xy": [
    822941.7727620472,
    6571397.373410434
   ]
  },
  "min_25m": {
   "gradient_pct": 6.164500405315948,
   "start_distance_m": 21.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 33.5,
   "start_elevation_m": 446.0428685116016,
   "end_elevation_m": 447.5839936129306,
   "start_xy": [
    822943.2358627021,
    6571377.531750406
   ],
   "end_xy": [
    822941.3134505758,
    6571402.352175756
   ]
  },
  "min_50m": {
   "gradient_pct": 7.26921082780018,
   "start_distance_m": 564.0,
   "end_distance_m": 614.0,
   "midpoint_distance_m": 589.0,
   "start_elevation_m": 523.1127360627471,
   "end_elevation_m": 526.7473414766472,
   "start_xy": [
    823348.5617135796,
    6571242.988605317
   ],
   "end_xy": [
    823398.0639304906,
    6571238.133469637
   ]
  },
  "min_100m": {
   "gradient_pct": 8.210066461437464,
   "start_distance_m": 550.0,
   "end_distance_m": 650.0,
   "midpoint_distance_m": 600.0,
   "start_elevation_m": 521.8639228130638,
   "end_elevation_m": 530.0739892745013,
   "start_xy": [
    823335.3994277125,
    6571247.72490988
   ],
   "end_xy": [
    823433.7290323717,
    6571241.381244433
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.151605643297216,
   "start_distance_m": 385.0,
   "end_distance_m": 387.0,
   "midpoint_distance_m": 386.0,
   "start_elevation_m": 497.9139780611683,
   "end_elevation_m": 498.4570101740342,
   "start_xy": [
    823189.5125393745,
    6571317.288906409
   ],
   "end_xy": [
    823191.1445768303,
    6571316.132855483
   ]
  },
  "max_3m": {
   "gradient_pct": 25.764311279516505,
   "start_distance_m": 385.0,
   "end_distance_m": 388.0,
   "midpoint_distance_m": 386.5,
   "start_elevation_m": 497.9139780611683,
   "end_elevation_m": 498.6869073995538,
   "start_xy": [
    823189.5125393745,
    6571317.288906409
   ],
   "end_xy": [
    823191.9605955582,
    6571315.55483002
   ]
  }
 },
 "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": 0.031,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.28,
   "obstruction_max_height_m": 21.99,
   "flagged_windows_m": [
    2,
    3,
    5,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "076a8e7f889cfb3c2cf6b3de65a6030c7155b1f0",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:8c94015b54267da4",
   "python": "3.14.4",
   "numpy": "2.5.3",
   "rasterio": "1.5.1",
   "pyproj": "3.8.0",
   "laspy": "2.7.0",
   "shapely": "2.1.2",
   "pyosmium": "4.3.1",
   "libosmium": "2.23.1",
   "gdal": "3.12.4",
   "proj": "9.8.1",
   "run_id": "fr-mc8",
   "road_pbf": "block-batch-fr-mc8.osm.pbf",
   "region_key": "france",
   "crs": "EPSG:2154",
   "elevation_provider_key": "ign-lidarhd",
   "tile_index": "wms-grid",
   "authority": "bdtopo",
   "registry_pbf": "france-vosges-2026-09-16.osm.pbf",
   "tile_index_snapshot": "sha256:af4eae1f5df9e232"
  },
  "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:2154",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/fr/ign-lidarhd_dtm_E822-N6571_0m5@21LHD5NK-2025-02-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E823-N6571_0m5@21LHD5NK-2025-02-20.tif"
  ],
  "calculated_at": "2026-09-22T15:24:13+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc8.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc8",
  "elevation_provider": "IGN LiDAR HD MNT 0.5 m",
  "elevation_licence": "Licence Ouverte / Open Licence 2.0 (Etalab) \u2014 \u00a9 IGN, LiDAR HD (MNT/MNS), data.geopf.fr; reproduction autoris\u00e9e avec mention de la source et de la date",
  "elevation_dataset": "LiDAR HD \u2014 MNT (sol) et MNS (surface), 0,50 m (Institut national de l'information g\u00e9ographique et foresti\u00e8re), RGF93 / Lambert-93 EPSG:2154, altitudes IGN69",
  "elevation_vertical_datum": "IGN69",
  "elevation_tile_ids": [
   "E822-N6571",
   "E823-N6571"
  ],
  "elevation_blocks": [
   "21LHD5NK@2025-02-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0822_6572_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0823_6572_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD5NK"
  ],
  "ign_editions": [
   "2025-02-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0822_6572_MNT_O_0M50_LAMB93_IGN69": "2025-02-20",
   "LHD_FXX_0823_6572_MNT_O_0M50_LAMB93_IGN69": "2025-02-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "carriageway": {
   "stations": 33,
   "stations_resolved": 33,
   "width_median_m": 4.0,
   "width_p10_m": 2.75,
   "width_min_m": 2.5,
   "width_max_m": 10.75,
   "bounded_share": 0.333,
   "unbounded_share": 0.667,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.75,
   "window_m": [
    410.0,
    435.0
   ],
   "width_at_max25_m": 7.0,
   "window_stations": 6,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "stations": 33,
    "stations_resolved": 33,
    "width_median_m": 4.75,
    "width_p10_m": 1.25,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.667,
    "unbounded_share": 0.333,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.12,
    "window_m": [
     410.0,
     435.0
    ],
    "width_at_max25_m": 10.12,
    "window_stations": 6,
    "status": "ok",
    "source": "dsm",
    "station_m": 25.0,
    "window_station_m": 5.0,
    "halfwidth_m": 6.0,
    "step_m": 0.25,
    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Deux-Grosnes",
  "county": "Rh\u00f4ne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}