{
 "ocl_version": "0.1.0",
 "name": "Fouguet",
 "slug": "fouguet",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.639177321432356,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 288.0,
   "end_distance_m": 290.0,
   "start_elevation_m": 92.034137491006,
   "end_elevation_m": 92.70692103743465,
   "min_gradient_pct": -32.048691164410315
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.140958792024207,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 287.0,
   "end_distance_m": 290.0,
   "start_elevation_m": 91.83269227367393,
   "end_elevation_m": 92.70692103743465,
   "min_gradient_pct": -29.43758376659389
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.656002765570975,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 287.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 91.83269227367393,
   "end_elevation_m": 93.06549241195248,
   "min_gradient_pct": -18.42826492212538,
   "suppressed_max_gradient_pct": 24.88280102454894,
   "suppressed_location_m": [
    538.0,
    543.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.73807661169286,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 358.0,
   "end_distance_m": 368.0,
   "start_elevation_m": 105.64440714886534,
   "end_elevation_m": 107.91821481003463,
   "min_gradient_pct": -7.726184779109104,
   "suppressed_max_gradient_pct": 23.54263290471664,
   "suppressed_location_m": [
    538.0,
    548.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.112722268740725,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 347.0,
   "end_distance_m": 367.0,
   "start_elevation_m": 103.27421455372775,
   "end_elevation_m": 107.69675900747589,
   "min_gradient_pct": -3.057029619527256,
   "suppressed_max_gradient_pct": 22.233453799933045,
   "suppressed_location_m": [
    533.0,
    553.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.977741617210942,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 331.0,
   "end_distance_m": 356.0,
   "start_elevation_m": 99.76282306631728,
   "end_elevation_m": 105.25725847062002,
   "min_gradient_pct": -2.0220413454761115
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.502147946971316,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 319.0,
   "end_distance_m": 369.0,
   "start_elevation_m": 97.40703213521587,
   "end_elevation_m": 108.15810610870153,
   "min_gradient_pct": 0.2397783160446636
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.565857689948288,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 305.0,
   "end_distance_m": 405.0,
   "start_elevation_m": 94.84083007312088,
   "end_elevation_m": 114.40668776306917,
   "min_gradient_pct": 3.9388584013723715
  }
 ],
 "shape": {
  "ascent_concentration": 0.374,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 181.0,
  "shape_class": "sustained"
 },
 "length_m": 578.7013514336962,
 "start_elevation_m": 65.60270003952267,
 "end_elevation_m": 135.69175234863863,
 "endpoint_gain_m": 70.08905230911596,
 "overall_gradient_pct": 12.111437468648507,
 "accumulated_ascent_m": 71.1618293641636,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.656002765570975,
   "start_distance_m": 287.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 289.5,
   "start_elevation_m": 91.83269227367393,
   "end_elevation_m": 93.06549241195248,
   "start_xy": [
    824773.0939906014,
    6357728.740509887
   ],
   "end_xy": [
    824773.7469560356,
    6357733.697690149
   ]
  },
  "max_10m": {
   "gradient_pct": 22.73807661169286,
   "start_distance_m": 358.0,
   "end_distance_m": 368.0,
   "midpoint_distance_m": 363.0,
   "start_elevation_m": 105.64440714886534,
   "end_elevation_m": 107.91821481003463,
   "start_xy": [
    824783.9620227546,
    6357798.854369148
   ],
   "end_xy": [
    824786.0865252755,
    6357808.626087985
   ]
  },
  "max_20m": {
   "gradient_pct": 22.112722268740725,
   "start_distance_m": 347.0,
   "end_distance_m": 367.0,
   "midpoint_distance_m": 357.0,
   "start_elevation_m": 103.27421455372775,
   "end_elevation_m": 107.69675900747589,
   "start_xy": [
    824781.6250699818,
    6357788.105478426
   ],
   "end_xy": [
    824785.8740750233,
    6357807.648916101
   ]
  },
  "max_25m": {
   "gradient_pct": 21.977741617210942,
   "start_distance_m": 331.0,
   "end_distance_m": 356.0,
   "midpoint_distance_m": 343.5,
   "start_elevation_m": 99.76282306631728,
   "end_elevation_m": 105.25725847062002,
   "start_xy": [
    824778.8400864222,
    6357772.363696186
   ],
   "end_xy": [
    824783.5371222505,
    6357796.90002538
   ]
  },
  "max_50m": {
   "gradient_pct": 21.502147946971316,
   "start_distance_m": 319.0,
   "end_distance_m": 369.0,
   "midpoint_distance_m": 344.0,
   "start_elevation_m": 97.40703213521587,
   "end_elevation_m": 108.15810610870153,
   "start_xy": [
    824777.2729693801,
    6357760.466463558
   ],
   "end_xy": [
    824786.4682333076,
    6357809.490017677
   ]
  },
  "max_100m": {
   "gradient_pct": 19.565857689948288,
   "start_distance_m": 305.0,
   "end_distance_m": 405.0,
   "midpoint_distance_m": 355.0,
   "start_elevation_m": 94.84083007312088,
   "end_elevation_m": 114.40668776306917,
   "start_xy": [
    824775.4446661645,
    6357746.586358828
   ],
   "end_xy": [
    824818.0080815546,
    6357802.336251991
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -18.42826492212538,
   "start_distance_m": 117.0,
   "end_distance_m": 122.0,
   "midpoint_distance_m": 119.5,
   "start_elevation_m": 79.42022580710567,
   "end_elevation_m": 78.4988125609994,
   "start_xy": [
    824667.6215637396,
    6357692.02004416
   ],
   "end_xy": [
    824672.2251608799,
    6357690.095412802
   ]
  },
  "min_10m": {
   "gradient_pct": -7.726184779109104,
   "start_distance_m": 117.0,
   "end_distance_m": 127.0,
   "midpoint_distance_m": 122.0,
   "start_elevation_m": 79.42022580710567,
   "end_elevation_m": 78.64760732919476,
   "start_xy": [
    824667.6215637396,
    6357692.02004416
   ],
   "end_xy": [
    824676.8077628965,
    6357688.0954731135
   ]
  },
  "min_20m": {
   "gradient_pct": -3.057029619527256,
   "start_distance_m": 117.0,
   "end_distance_m": 137.0,
   "midpoint_distance_m": 127.0,
   "start_elevation_m": 79.42022580710567,
   "end_elevation_m": 78.80881988320021,
   "start_xy": [
    824667.6215637396,
    6357692.02004416
   ],
   "end_xy": [
    824685.6457103132,
    6357683.427352202
   ]
  },
  "min_25m": {
   "gradient_pct": -2.0220413454761115,
   "start_distance_m": 117.0,
   "end_distance_m": 142.0,
   "midpoint_distance_m": 129.5,
   "start_elevation_m": 79.42022580710567,
   "end_elevation_m": 78.91471547073664,
   "start_xy": [
    824667.6215637396,
    6357692.02004416
   ],
   "end_xy": [
    824690.0353264577,
    6357681.033345079
   ]
  },
  "min_50m": {
   "gradient_pct": 0.2397783160446636,
   "start_distance_m": 117.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 142.0,
   "start_elevation_m": 79.42022580710567,
   "end_elevation_m": 79.540114965128,
   "start_xy": [
    824667.6215637396,
    6357692.02004416
   ],
   "end_xy": [
    824706.3548508252,
    6357662.4656654345
   ]
  },
  "min_100m": {
   "gradient_pct": 3.9388584013723715,
   "start_distance_m": 117.0,
   "end_distance_m": 217.0,
   "midpoint_distance_m": 167.0,
   "start_elevation_m": 79.42022580710567,
   "end_elevation_m": 83.35908420847804,
   "start_xy": [
    824667.6215637396,
    6357692.02004416
   ],
   "end_xy": [
    824744.3917822416,
    6357665.19137025
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.639177321432356,
   "start_distance_m": 288.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 289.0,
   "start_elevation_m": 92.034137491006,
   "end_elevation_m": 92.70692103743465,
   "start_xy": [
    824773.2245836882,
    6357729.731945939
   ],
   "end_xy": [
    824773.485769862,
    6357731.714818044
   ]
  },
  "max_3m": {
   "gradient_pct": 29.140958792024207,
   "start_distance_m": 287.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 288.5,
   "start_elevation_m": 91.83269227367393,
   "end_elevation_m": 92.70692103743465,
   "start_xy": [
    824773.0939906014,
    6357728.740509887
   ],
   "end_xy": [
    824773.485769862,
    6357731.714818044
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.043,
   "windows_resited": [
    5.0,
    10.0,
    20.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 20.0,
     "start_m": 533.0,
     "end_m": 553.0,
     "raw_pct": 22.23,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 538.0,
     "end_m": 548.0,
     "raw_pct": 23.54,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.116,
   "obstruction_max_height_m": 14.07,
   "flagged_windows_m": [
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    531.0,
    555.0
   ]
  ],
  "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_E824-N6357_0m5@22LHD5NO-2025-04-22.tif"
  ],
  "calculated_at": "2026-09-22T14:56:20+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": [
   "E824-N6357"
  ],
  "elevation_blocks": [
   "22LHD5NO@2025-04-22"
  ],
  "ign_dalles": [
   "LHD_FXX_0824_6358_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD5NO"
  ],
  "ign_editions": [
   "2025-04-22"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0824_6358_MNT_O_0M50_LAMB93_IGN69": "2025-04-22"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "carriageway": {
   "stations": 30,
   "stations_resolved": 30,
   "width_median_m": 5.0,
   "width_p10_m": 2.48,
   "width_min_m": 1.25,
   "width_max_m": 12.0,
   "bounded_share": 0.267,
   "unbounded_share": 0.733,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.88,
   "window_m": [
    331.0,
    356.0
   ],
   "width_at_max25_m": 4.25,
   "window_stations": 7,
   "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": 30,
    "stations_resolved": 30,
    "width_median_m": 3.62,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.733,
    "unbounded_share": 0.267,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.75,
    "window_m": [
     331.0,
     356.0
    ],
    "width_at_max25_m": 1.25,
    "window_stations": 7,
    "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": "Saint-Martin-d'Ard\u00e8che",
  "county": "Ard\u00e8che",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}