{
 "ocl_version": "0.1.0",
 "name": "Col de Cuv\u00e9ry from Vouvray",
 "slug": "col-de-cuvery-from-vouvray",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.87944717275286,
   "diagnostic": true,
   "flags": [
    "structure_excluded_min",
    "no_bench_excluded_min",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 5251.0,
   "end_distance_m": 5253.0,
   "start_elevation_m": 996.5137280610005,
   "end_elevation_m": 997.1513170044556,
   "min_gradient_pct": -13.819996317596406,
   "suppressed_max_gradient_pct": 45.21152850736598,
   "suppressed_location_m": [
    5875.0,
    5877.0
   ],
   "suppressed_min_gradient_pct": -54.32885452514711,
   "suppressed_min_location_m": [
    5885.0,
    5887.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.942964697996256,
   "diagnostic": true,
   "flags": [
    "structure_excluded_min",
    "no_bench_excluded_min",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 5251.0,
   "end_distance_m": 5254.0,
   "start_elevation_m": 996.5137280610005,
   "end_elevation_m": 997.2920170019404,
   "min_gradient_pct": -13.653123187574087,
   "suppressed_max_gradient_pct": 33.09687495310906,
   "suppressed_location_m": [
    5874.0,
    5877.0
   ],
   "suppressed_min_gradient_pct": -49.212435240807885,
   "suppressed_min_location_m": [
    5881.0,
    5884.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.44435152386086,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded_min",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4780.0,
   "end_distance_m": 4785.0,
   "start_elevation_m": 964.3586410275971,
   "end_elevation_m": 965.3808586037901,
   "min_gradient_pct": -8.130096855461488,
   "suppressed_max_gradient_pct": 29.59110772895656,
   "suppressed_location_m": [
    5875.0,
    5880.0
   ],
   "suppressed_min_gradient_pct": -35.72962022775755,
   "suppressed_min_location_m": [
    5881.0,
    5886.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 17.399272872146412,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded_min",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4974.0,
   "end_distance_m": 4984.0,
   "start_elevation_m": 976.8799260203801,
   "end_elevation_m": 978.6198533075948,
   "min_gradient_pct": -2.965067648990498,
   "suppressed_max_gradient_pct": 23.89462267156432,
   "suppressed_location_m": [
    5871.0,
    5881.0
   ],
   "suppressed_min_gradient_pct": -18.733508134316708,
   "suppressed_min_location_m": [
    5881.0,
    5891.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 13.223112125839975,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4969.0,
   "end_distance_m": 4989.0,
   "start_elevation_m": 976.1967916955739,
   "end_elevation_m": 978.8414141207419,
   "min_gradient_pct": -2.8389261542281474,
   "suppressed_max_gradient_pct": 17.2715045922871,
   "suppressed_location_m": [
    5861.0,
    5881.0
   ],
   "suppressed_min_gradient_pct": -5.996956762310219,
   "suppressed_min_location_m": [
    5881.0,
    5901.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 11.977074882051511,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4969.0,
   "end_distance_m": 4994.0,
   "start_elevation_m": 976.1967916955739,
   "end_elevation_m": 979.1910604160868,
   "min_gradient_pct": -2.8134726723119456,
   "suppressed_max_gradient_pct": 14.846441890461392,
   "suppressed_location_m": [
    5856.0,
    5881.0
   ],
   "suppressed_min_gradient_pct": -3.5989118834304463,
   "suppressed_min_location_m": [
    5881.0,
    5906.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 10.05573045675169,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4216.0,
   "end_distance_m": 4266.0,
   "start_elevation_m": 921.8072896345761,
   "end_elevation_m": 926.835154862952,
   "min_gradient_pct": -2.409957355807819,
   "suppressed_max_gradient_pct": 10.405345994312484,
   "suppressed_location_m": [
    5831.0,
    5881.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 8.821430196062465,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4216.0,
   "end_distance_m": 4316.0,
   "start_elevation_m": 921.8072896345761,
   "end_elevation_m": 930.6287198306386,
   "min_gradient_pct": -2.0201737190752738,
   "suppressed_max_gradient_pct": 9.015820531929194,
   "suppressed_location_m": [
    5781.0,
    5881.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.317,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 25.0,
  "shape_class": "sustained"
 },
 "length_m": 9578.1307105529,
 "start_elevation_m": 627.3708098847875,
 "end_elevation_m": 1173.9385732090009,
 "endpoint_gain_m": 546.5677633242134,
 "overall_gradient_pct": 5.706413702644727,
 "accumulated_ascent_m": 563.0449933233318,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.44435152386086,
   "start_distance_m": 4780.0,
   "end_distance_m": 4785.0,
   "midpoint_distance_m": 4782.5,
   "start_elevation_m": 964.3586410275971,
   "end_elevation_m": 965.3808586037901,
   "start_xy": [
    913549.5093194133,
    6562091.6316112615
   ],
   "end_xy": [
    913546.9433568047,
    6562087.34024366
   ]
  },
  "max_10m": {
   "gradient_pct": 17.399272872146412,
   "start_distance_m": 4974.0,
   "end_distance_m": 4984.0,
   "midpoint_distance_m": 4979.0,
   "start_elevation_m": 976.8799260203801,
   "end_elevation_m": 978.6198533075948,
   "start_xy": [
    913456.5016575165,
    6561923.670090916
   ],
   "end_xy": [
    913454.132596063,
    6561913.954765506
   ]
  },
  "max_20m": {
   "gradient_pct": 13.223112125839975,
   "start_distance_m": 4969.0,
   "end_distance_m": 4989.0,
   "midpoint_distance_m": 4979.0,
   "start_elevation_m": 976.1967916955739,
   "end_elevation_m": 978.8414141207419,
   "start_xy": [
    913457.6861882431,
    6561928.527753621
   ],
   "end_xy": [
    913453.0823149168,
    6561909.076856456
   ]
  },
  "max_25m": {
   "gradient_pct": 11.977074882051511,
   "start_distance_m": 4969.0,
   "end_distance_m": 4994.0,
   "midpoint_distance_m": 4981.5,
   "start_elevation_m": 976.1967916955739,
   "end_elevation_m": 979.1910604160868,
   "start_xy": [
    913457.6861882431,
    6561928.527753621
   ],
   "end_xy": [
    913452.7815647239,
    6561904.08590972
   ]
  },
  "max_50m": {
   "gradient_pct": 10.05573045675169,
   "start_distance_m": 4216.0,
   "end_distance_m": 4266.0,
   "midpoint_distance_m": 4241.0,
   "start_elevation_m": 921.8072896345761,
   "end_elevation_m": 926.835154862952,
   "start_xy": [
    913747.0479126933,
    6562551.462109546
   ],
   "end_xy": [
    913718.193334242,
    6562573.789593837
   ]
  },
  "max_100m": {
   "gradient_pct": 8.821430196062465,
   "start_distance_m": 4216.0,
   "end_distance_m": 4316.0,
   "midpoint_distance_m": 4266.0,
   "start_elevation_m": 921.8072896345761,
   "end_elevation_m": 930.6287198306386,
   "start_xy": [
    913747.0479126933,
    6562551.462109546
   ],
   "end_xy": [
    913708.9024505724,
    6562524.747069333
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.130096855461488,
   "start_distance_m": 3912.0,
   "end_distance_m": 3917.0,
   "midpoint_distance_m": 3914.5,
   "start_elevation_m": 898.9658920938568,
   "end_elevation_m": 898.5593872510838,
   "start_xy": [
    913733.5799187009,
    6562248.886066268
   ],
   "end_xy": [
    913733.4743552104,
    6562253.884951779
   ]
  },
  "min_10m": {
   "gradient_pct": -2.965067648990498,
   "start_distance_m": 9123.0,
   "end_distance_m": 9133.0,
   "midpoint_distance_m": 9128.0,
   "start_elevation_m": 1178.9276630608813,
   "end_elevation_m": 1178.6311562959822,
   "start_xy": [
    910803.8934290183,
    6560615.486538594
   ],
   "end_xy": [
    910796.359054163,
    6560622.061734068
   ]
  },
  "min_20m": {
   "gradient_pct": -2.8389261542281474,
   "start_distance_m": 9129.0,
   "end_distance_m": 9149.0,
   "midpoint_distance_m": 9139.0,
   "start_elevation_m": 1178.7640888358897,
   "end_elevation_m": 1178.196303605044,
   "start_xy": [
    910799.3728041052,
    6560619.431655878
   ],
   "end_xy": [
    910784.3040543945,
    6560632.582046829
   ]
  },
  "min_25m": {
   "gradient_pct": -2.8134726723119456,
   "start_distance_m": 9124.0,
   "end_distance_m": 9149.0,
   "midpoint_distance_m": 9136.5,
   "start_elevation_m": 1178.899671773122,
   "end_elevation_m": 1178.196303605044,
   "start_xy": [
    910803.1399915329,
    6560616.144058141
   ],
   "end_xy": [
    910784.3040543945,
    6560632.582046829
   ]
  },
  "min_50m": {
   "gradient_pct": -2.409957355807819,
   "start_distance_m": 9111.0,
   "end_distance_m": 9161.0,
   "midpoint_distance_m": 9136.0,
   "start_elevation_m": 1179.138916401309,
   "end_elevation_m": 1177.933937723405,
   "start_xy": [
    910812.9346788448,
    6560607.596304023
   ],
   "end_xy": [
    910775.262804568,
    6560640.472281399
   ]
  },
  "min_100m": {
   "gradient_pct": -2.0201737190752738,
   "start_distance_m": 9208.0,
   "end_distance_m": 9308.0,
   "midpoint_distance_m": 9258.0,
   "start_elevation_m": 1177.3780447785698,
   "end_elevation_m": 1175.3578710594945,
   "start_xy": [
    910739.851242748,
    6560671.375700134
   ],
   "end_xy": [
    910664.5414757099,
    6560737.164437886
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.87944717275286,
   "start_distance_m": 5251.0,
   "end_distance_m": 5253.0,
   "midpoint_distance_m": 5252.0,
   "start_elevation_m": 996.5137280610005,
   "end_elevation_m": 997.1513170044556,
   "start_xy": [
    913395.7693879266,
    6561654.790250609
   ],
   "end_xy": [
    913395.1738437205,
    6561652.880976638
   ]
  },
  "max_3m": {
   "gradient_pct": 25.942964697996256,
   "start_distance_m": 5251.0,
   "end_distance_m": 5254.0,
   "midpoint_distance_m": 5252.5,
   "start_elevation_m": 996.5137280610005,
   "end_elevation_m": 997.2920170019404,
   "start_xy": [
    913395.7693879266,
    6561654.790250609
   ],
   "end_xy": [
    913394.8760716174,
    6561651.926339651
   ]
  }
 },
 "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": 0.001,
   "windows_resited": [
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "minima_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.013,
   "windows_resited": [
    25.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.014,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 10.0,
     "start_m": 5867.0,
     "end_m": 5877.0,
     "raw_pct": 23.3,
     "reason": "mask-edge"
    },
    {
     "window_m": 5.0,
     "start_m": 5872.0,
     "end_m": 5877.0,
     "raw_pct": 27.57,
     "reason": "mask-edge+short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.22,
   "obstruction_max_height_m": 28.09,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    4790.0,
    4820.0
   ],
   [
    5280.0,
    5320.0
   ],
   [
    5370.0,
    5410.0
   ],
   [
    5865.0,
    5888.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "c4fd6b4a89a9718922c7ed8acdf14e43dcf75a33",
   "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-ju2",
   "road_pbf": "block-batch-fr-ju2.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": "sha256:78945c7930496bfe"
  },
  "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_E910-N6560_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E910-N6561_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E911-N6560_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E911-N6561_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E912-N6560_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E912-N6561_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E913-N6560_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E913-N6561_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E913-N6562_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E914-N6560_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E914-N6561_0m5@21LHD5PK1-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E914-N6562_0m5@21LHD5PK1-2024-12-19.tif"
  ],
  "calculated_at": "2026-09-24T11:25:41+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-ju2",
  "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": [
   "E910-N6560",
   "E910-N6561",
   "E911-N6560",
   "E911-N6561",
   "E912-N6560",
   "E912-N6561",
   "E913-N6560",
   "E913-N6561",
   "E913-N6562",
   "E914-N6560",
   "E914-N6561",
   "E914-N6562"
  ],
  "elevation_blocks": [
   "21LHD5PK1@2024-12-19"
  ],
  "ign_dalles": [
   "LHD_FXX_0910_6561_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0910_6562_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0911_6561_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0911_6562_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0912_6561_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0912_6562_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0913_6561_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0913_6562_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0913_6563_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0914_6561_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0914_6562_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0914_6563_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD5PK1"
  ],
  "ign_editions": [
   "2024-12-19"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0910_6561_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0910_6562_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0911_6561_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0911_6562_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0912_6561_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0912_6562_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0913_6561_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0913_6562_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0913_6563_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0914_6561_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0914_6562_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0914_6563_MNT_O_0M50_LAMB93_IGN69": "2024-12-19"
  },
  "climb_origin": "named-pass",
  "structure_own_ways": 11,
  "carriageway": {
   "stations": 390,
   "stations_resolved": 390,
   "width_median_m": 6.62,
   "width_p10_m": 4.75,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.372,
   "unbounded_share": 0.628,
   "confidence_median": 0.0,
   "width_median_bounded_m": 6.25,
   "window_m": [
    4969.0,
    4994.0
   ],
   "width_at_max25_m": 2.25,
   "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": 390,
    "stations_resolved": 390,
    "width_median_m": 6.0,
    "width_p10_m": 1.0,
    "width_min_m": 0.0,
    "width_max_m": 12.0,
    "bounded_share": 0.746,
    "unbounded_share": 0.254,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.25,
    "window_m": [
     4969.0,
     4994.0
    ],
    "width_at_max25_m": 2.75,
    "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": "Valserh\u00f4ne",
  "county": "Ain",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}