{
 "ocl_version": "0.1.0",
 "name": "Col de Suzette from Lafare",
 "slug": "col-de-suzette-from-lafare",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.47679749887595,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded"
   ],
   "start_distance_m": 315.0,
   "end_distance_m": 317.0,
   "start_elevation_m": 197.50577163635765,
   "end_elevation_m": 198.15530758633517,
   "min_gradient_pct": -26.58893697422542,
   "suppressed_max_gradient_pct": 209.2783608096056,
   "suppressed_location_m": [
    2762.0,
    2764.0
   ],
   "suppressed_min_gradient_pct": -184.79421574453738,
   "suppressed_min_location_m": [
    2757.0,
    2759.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.341007160788383,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded"
   ],
   "start_distance_m": 314.0,
   "end_distance_m": 317.0,
   "start_elevation_m": 197.36507737151152,
   "end_elevation_m": 198.15530758633517,
   "min_gradient_pct": -16.672743205328782,
   "suppressed_max_gradient_pct": 147.94685706818692,
   "suppressed_location_m": [
    2761.0,
    2764.0
   ],
   "suppressed_min_gradient_pct": -138.19712303654038,
   "suppressed_min_location_m": [
    2756.0,
    2759.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.44668948330809,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "suppression_unstable"
   ],
   "start_distance_m": 314.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 197.36507737151152,
   "end_elevation_m": 198.38741184567692,
   "min_gradient_pct": -15.133841250570299,
   "suppressed_max_gradient_pct": 89.76030862136099,
   "suppressed_location_m": [
    2761.0,
    2766.0
   ],
   "suppressed_min_gradient_pct": -85.86050296504936,
   "suppressed_min_location_m": [
    2756.0,
    2761.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 12.070801616737299,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded"
   ],
   "start_distance_m": 333.0,
   "end_distance_m": 343.0,
   "start_elevation_m": 200.50768747806916,
   "end_elevation_m": 201.7147676397429,
   "min_gradient_pct": -11.357864848168902,
   "suppressed_max_gradient_pct": 46.7935400835853,
   "suppressed_location_m": [
    2761.0,
    2771.0
   ],
   "suppressed_min_gradient_pct": -41.882562285269955,
   "suppressed_min_location_m": [
    2751.0,
    2761.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 11.420552355429265,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded"
   ],
   "start_distance_m": 2183.0,
   "end_distance_m": 2203.0,
   "start_elevation_m": 330.90939690016353,
   "end_elevation_m": 333.1935073712494,
   "min_gradient_pct": -6.573585942904714,
   "suppressed_max_gradient_pct": 26.142194697127934,
   "suppressed_location_m": [
    2761.0,
    2781.0
   ],
   "suppressed_min_gradient_pct": -19.64798114423587,
   "suppressed_min_location_m": [
    2741.0,
    2761.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 11.217279681130094,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 2179.0,
   "end_distance_m": 2204.0,
   "start_elevation_m": 330.4921721802609,
   "end_elevation_m": 333.29649210054345,
   "min_gradient_pct": -4.330095526594391,
   "suppressed_max_gradient_pct": 22.11750085972858,
   "suppressed_location_m": [
    2761.0,
    2786.0
   ],
   "suppressed_min_gradient_pct": -14.933289375690492,
   "suppressed_min_location_m": [
    2736.0,
    2761.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 10.305181012221624,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 2175.0,
   "end_distance_m": 2225.0,
   "start_elevation_m": 330.1165002643493,
   "end_elevation_m": 335.26909077046014,
   "min_gradient_pct": 0.30639826710739726,
   "suppressed_max_gradient_pct": 14.430137501717127,
   "suppressed_location_m": [
    2761.0,
    2811.0
   ],
   "suppressed_min_gradient_pct": -4.746833166627994,
   "suppressed_min_location_m": [
    2711.0,
    2761.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 9.109430705244847,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 2132.0,
   "end_distance_m": 2232.0,
   "start_elevation_m": 326.76573557629564,
   "end_elevation_m": 335.8751662815405,
   "min_gradient_pct": 2.903620352724033,
   "suppressed_max_gradient_pct": 10.579431175059142,
   "suppressed_location_m": [
    2761.0,
    2861.0
   ],
   "suppressed_min_gradient_pct": 0.8769826378971857,
   "suppressed_min_location_m": [
    2661.0,
    2761.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.273,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 33.0,
  "shape_class": "sustained"
 },
 "length_m": 3103.252178442705,
 "start_elevation_m": 181.87019142455765,
 "end_elevation_m": 391.7536417023949,
 "endpoint_gain_m": 209.88345027783723,
 "overall_gradient_pct": 6.763338530327315,
 "accumulated_ascent_m": 217.0330811924499,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.44668948330809,
   "start_distance_m": 314.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 316.5,
   "start_elevation_m": 197.36507737151152,
   "end_elevation_m": 198.38741184567692,
   "start_xy": [
    864333.8365531318,
    6341317.096593864
   ],
   "end_xy": [
    864336.8243531748,
    6341321.105714829
   ]
  },
  "max_10m": {
   "gradient_pct": 12.070801616737299,
   "start_distance_m": 333.0,
   "end_distance_m": 343.0,
   "midpoint_distance_m": 338.0,
   "start_elevation_m": 200.50768747806916,
   "end_elevation_m": 201.7147676397429,
   "start_xy": [
    864345.190193295,
    6341332.331253528
   ],
   "end_xy": [
    864351.1387391896,
    6341340.36873234
   ]
  },
  "max_20m": {
   "gradient_pct": 11.420552355429265,
   "start_distance_m": 2183.0,
   "end_distance_m": 2203.0,
   "midpoint_distance_m": 2193.0,
   "start_elevation_m": 330.90939690016353,
   "end_elevation_m": 333.1935073712494,
   "start_xy": [
    865211.9840047294,
    6342769.106789115
   ],
   "end_xy": [
    865230.2331202347,
    6342774.031363445
   ]
  },
  "max_25m": {
   "gradient_pct": 11.217279681130094,
   "start_distance_m": 2179.0,
   "end_distance_m": 2204.0,
   "midpoint_distance_m": 2191.5,
   "start_elevation_m": 330.4921721802609,
   "end_elevation_m": 333.29649210054345,
   "start_xy": [
    865208.0468103674,
    6342769.514159343
   ],
   "end_xy": [
    865230.8345983832,
    6342774.830252698
   ]
  },
  "max_50m": {
   "gradient_pct": 10.305181012221624,
   "start_distance_m": 2175.0,
   "end_distance_m": 2225.0,
   "midpoint_distance_m": 2200.0,
   "start_elevation_m": 330.1165002643493,
   "end_elevation_m": 335.26909077046014,
   "start_xy": [
    865204.5463301655,
    6342771.449782849
   ],
   "end_xy": [
    865233.575450471,
    6342794.478128627
   ]
  },
  "max_100m": {
   "gradient_pct": 9.109430705244847,
   "start_distance_m": 2132.0,
   "end_distance_m": 2232.0,
   "midpoint_distance_m": 2182.0,
   "start_elevation_m": 326.76573557629564,
   "end_elevation_m": 335.8751662815405,
   "start_xy": [
    865164.5527787482,
    6342784.557036032
   ],
   "end_xy": [
    865231.130478013,
    6342801.037252782
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -15.133841250570299,
   "start_distance_m": 286.0,
   "end_distance_m": 291.0,
   "midpoint_distance_m": 288.5,
   "start_elevation_m": 197.0766255813545,
   "end_elevation_m": 196.319933518826,
   "start_xy": [
    864317.319032954,
    6341294.490756117
   ],
   "end_xy": [
    864320.1877242284,
    6341298.585949686
   ]
  },
  "min_10m": {
   "gradient_pct": -11.357864848168902,
   "start_distance_m": 285.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 290.0,
   "start_elevation_m": 197.1698875247032,
   "end_elevation_m": 196.0341010398863,
   "start_xy": [
    864316.7452946992,
    6341293.671717403
   ],
   "end_xy": [
    864322.4829129686,
    6341301.861934202
   ]
  },
  "min_20m": {
   "gradient_pct": -6.573585942904714,
   "start_distance_m": 281.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 291.0,
   "start_elevation_m": 197.325043790354,
   "end_elevation_m": 196.01032660177304,
   "start_xy": [
    864314.4503416796,
    6341290.395562547
   ],
   "end_xy": [
    864326.0682730202,
    6341306.672879358
   ]
  },
  "min_25m": {
   "gradient_pct": -4.330095526594391,
   "start_distance_m": 276.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 288.5,
   "start_elevation_m": 197.09285048342164,
   "end_elevation_m": 196.01032660177304,
   "start_xy": [
    864311.5816504053,
    6341286.300368978
   ],
   "end_xy": [
    864326.0682730202,
    6341306.672879358
   ]
  },
  "min_50m": {
   "gradient_pct": 0.30639826710739726,
   "start_distance_m": 251.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 276.0,
   "start_elevation_m": 195.85712746821935,
   "end_elevation_m": 196.01032660177304,
   "start_xy": [
    864297.2381940335,
    6341265.82440113
   ],
   "end_xy": [
    864326.0682730202,
    6341306.672879358
   ]
  },
  "min_100m": {
   "gradient_pct": 2.903620352724033,
   "start_distance_m": 201.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 251.0,
   "start_elevation_m": 193.106706249049,
   "end_elevation_m": 196.01032660177304,
   "start_xy": [
    864269.6706110786,
    6341224.195853935
   ],
   "end_xy": [
    864326.0682730202,
    6341306.672879358
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.47679749887595,
   "start_distance_m": 315.0,
   "end_distance_m": 317.0,
   "midpoint_distance_m": 316.0,
   "start_elevation_m": 197.50577163635765,
   "end_elevation_m": 198.15530758633517,
   "start_xy": [
    864334.4341131405,
    6341317.898418057
   ],
   "end_xy": [
    864335.6292331576,
    6341319.502066443
   ]
  },
  "max_3m": {
   "gradient_pct": 26.341007160788383,
   "start_distance_m": 314.0,
   "end_distance_m": 317.0,
   "midpoint_distance_m": 315.5,
   "start_elevation_m": 197.36507737151152,
   "end_elevation_m": 198.15530758633517,
   "start_xy": [
    864333.8365531318,
    6341317.096593864
   ],
   "end_xy": [
    864335.6292331576,
    6341319.502066443
   ]
  }
 },
 "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": 0.007,
   "windows_resited": [
    2.0,
    3.0,
    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,
    50.0,
    100.0
   ],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.011,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 304.0,
     "end_m": 309.0,
     "raw_pct": 27.98,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": [],
   "unstable": [
    {
     "window_m": 5.0,
     "start_m": 314.0,
     "end_m": 319.0,
     "raw_pct": 20.45,
     "reason": "mask-edge",
     "perturbations": [
      "phase+0.000/mask+0",
      "phase+0.333/mask+1",
      "phase+0.667/mask-1"
     ],
     "perturbation_reasons": [
      "mask-edge",
      "",
      ""
     ]
    }
   ]
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.06,
   "obstruction_max_height_m": 15.47,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    302.0,
    311.0
   ],
   [
    323.0,
    328.0
   ],
   [
    2752.0,
    2768.0
   ]
  ],
  "review": [
   "short_window_divergence"
  ],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832",
   "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-pr1",
   "road_pbf": "block-batch-fr-pr1.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:ba95a0bf562c86eb"
  },
  "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_E864-N6341_0m5@22LHD6OO-2025-03-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E864-N6342_0m5@22LHD6OO-2025-03-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E864-N6343_0m5@22LHD6OO-2025-03-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E865-N6341_0m5@22LHD6OO-2025-03-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E865-N6342_0m5@22LHD6OO-2025-03-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E865-N6343_0m5@22LHD6OO-2025-03-14.tif"
  ],
  "calculated_at": "2026-09-25T10:43:31+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr1",
  "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": [
   "E864-N6341",
   "E864-N6342",
   "E864-N6343",
   "E865-N6341",
   "E865-N6342",
   "E865-N6343"
  ],
  "elevation_blocks": [
   "22LHD6OO@2025-03-14"
  ],
  "ign_dalles": [
   "LHD_FXX_0864_6342_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0864_6343_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0864_6344_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0865_6342_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0865_6343_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0865_6344_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6OO"
  ],
  "ign_editions": [
   "2025-03-14"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0864_6342_MNT_O_0M50_LAMB93_IGN69": "2025-03-14",
   "LHD_FXX_0864_6343_MNT_O_0M50_LAMB93_IGN69": "2025-03-14",
   "LHD_FXX_0864_6344_MNT_O_0M50_LAMB93_IGN69": "2025-03-14",
   "LHD_FXX_0865_6342_MNT_O_0M50_LAMB93_IGN69": "2025-03-14",
   "LHD_FXX_0865_6343_MNT_O_0M50_LAMB93_IGN69": "2025-03-14",
   "LHD_FXX_0865_6344_MNT_O_0M50_LAMB93_IGN69": "2025-03-14"
  },
  "climb_origin": "named-pass",
  "structure_own_ways": 4,
  "suppression_unstable": [
   5.0
  ],
  "carriageway": {
   "stations": 131,
   "stations_resolved": 131,
   "width_median_m": 7.25,
   "width_p10_m": 5.75,
   "width_min_m": 1.25,
   "width_max_m": 12.0,
   "bounded_share": 0.282,
   "unbounded_share": 0.718,
   "confidence_median": 0.0,
   "width_median_bounded_m": 6.75,
   "window_m": [
    2179.0,
    2204.0
   ],
   "width_at_max25_m": 9.25,
   "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": 131,
    "stations_resolved": 131,
    "width_median_m": 8.75,
    "width_p10_m": 2.75,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.687,
    "unbounded_share": 0.313,
    "confidence_median": 1.0,
    "width_median_bounded_m": 7.5,
    "window_m": [
     2179.0,
     2204.0
    ],
    "width_at_max25_m": 9.75,
    "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": "Lafare",
  "county": "Vaucluse",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}