{
 "ocl_version": "0.1.0",
 "name": "Chemin du Fenouillet",
 "slug": "chemin-du-fenouillet-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.80164674302617,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4.0,
   "end_distance_m": 6.0,
   "start_elevation_m": 104.2284833801692,
   "end_elevation_m": 104.86451631502972,
   "min_gradient_pct": -19.766138770863506,
   "suppressed_max_gradient_pct": 55.108258907533525,
   "suppressed_location_m": [
    210.0,
    212.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.80661427863534,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 196.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 131.3020132044433,
   "end_elevation_m": 132.16621163280237,
   "min_gradient_pct": -17.8449813096762,
   "suppressed_max_gradient_pct": 43.62370223252204,
   "suppressed_location_m": [
    210.0,
    213.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.641294204582664,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 195.0,
   "end_distance_m": 200.0,
   "start_elevation_m": 131.07629066388444,
   "end_elevation_m": 132.40835537411357,
   "min_gradient_pct": -15.916936546914826,
   "suppressed_max_gradient_pct": 33.81780120877522,
   "suppressed_location_m": [
    210.0,
    215.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.77544112022241,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 383.0,
   "end_distance_m": 393.0,
   "start_elevation_m": 159.75795237282867,
   "end_elevation_m": 162.0354964848509,
   "min_gradient_pct": -14.601581904473164,
   "suppressed_max_gradient_pct": 25.367725709687647,
   "suppressed_location_m": [
    210.0,
    220.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.055667319694976,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 374.0,
   "end_distance_m": 394.0,
   "start_elevation_m": 157.84041524039606,
   "end_elevation_m": 162.25154870433505,
   "min_gradient_pct": -13.73567047424146
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.50121486107753,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 374.0,
   "end_distance_m": 399.0,
   "start_elevation_m": 157.84041524039606,
   "end_elevation_m": 163.21571895566544,
   "min_gradient_pct": -13.185573053866051
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.456993029539376,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 351.0,
   "end_distance_m": 401.0,
   "start_elevation_m": 153.8078614390868,
   "end_elevation_m": 163.53635795385648,
   "min_gradient_pct": -11.206438160662458
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.602146186709547,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 299.0,
   "end_distance_m": 399.0,
   "start_elevation_m": 145.6135727689559,
   "end_elevation_m": 163.21571895566544,
   "min_gradient_pct": -10.878544346316945
  }
 ],
 "shape": {
  "ascent_concentration": 0.461,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 140.0,
  "shape_class": "stepped"
 },
 "length_m": 2081.8712577714437,
 "start_elevation_m": 103.7935574975473,
 "end_elevation_m": 235.69799437354084,
 "endpoint_gain_m": 131.90443687599355,
 "overall_gradient_pct": 6.335859452576898,
 "accumulated_ascent_m": 157.9634531075695,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.641294204582664,
   "start_distance_m": 195.0,
   "end_distance_m": 200.0,
   "midpoint_distance_m": 197.5,
   "start_elevation_m": 131.07629066388444,
   "end_elevation_m": 132.40835537411357,
   "start_xy": [
    953288.1010672649,
    6230855.259929541
   ],
   "end_xy": [
    953287.4046214484,
    6230860.211188292
   ]
  },
  "max_10m": {
   "gradient_pct": 22.77544112022241,
   "start_distance_m": 383.0,
   "end_distance_m": 393.0,
   "midpoint_distance_m": 388.0,
   "start_elevation_m": 159.75795237282867,
   "end_elevation_m": 162.0354964848509,
   "start_xy": [
    953245.3688816625,
    6231005.237599281
   ],
   "end_xy": [
    953244.1207043658,
    6231014.89137612
   ]
  },
  "max_20m": {
   "gradient_pct": 22.055667319694976,
   "start_distance_m": 374.0,
   "end_distance_m": 394.0,
   "midpoint_distance_m": 384.0,
   "start_elevation_m": 157.84041524039606,
   "end_elevation_m": 162.25154870433505,
   "start_xy": [
    953252.1621205877,
    6230999.536130327
   ],
   "end_xy": [
    953244.3319593798,
    6231015.868807099
   ]
  },
  "max_25m": {
   "gradient_pct": 21.50121486107753,
   "start_distance_m": 374.0,
   "end_distance_m": 399.0,
   "midpoint_distance_m": 386.5,
   "start_elevation_m": 157.84041524039606,
   "end_elevation_m": 163.21571895566544,
   "start_xy": [
    953252.1621205877,
    6230999.536130327
   ],
   "end_xy": [
    953245.3882344497,
    6231020.755961995
   ]
  },
  "max_50m": {
   "gradient_pct": 19.456993029539376,
   "start_distance_m": 351.0,
   "end_distance_m": 401.0,
   "midpoint_distance_m": 376.0,
   "start_elevation_m": 153.8078614390868,
   "end_elevation_m": 163.53635795385648,
   "start_xy": [
    953273.9133703649,
    6230992.322977744
   ],
   "end_xy": [
    953246.2731056194,
    6231022.514845587
   ]
  },
  "max_100m": {
   "gradient_pct": 17.602146186709547,
   "start_distance_m": 299.0,
   "end_distance_m": 399.0,
   "midpoint_distance_m": 349.0,
   "start_elevation_m": 145.6135727689559,
   "end_elevation_m": 163.21571895566544,
   "start_xy": [
    953305.2329480428,
    6230956.653118836
   ],
   "end_xy": [
    953245.3882344497,
    6231020.755961995
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -15.916936546914826,
   "start_distance_m": 856.0,
   "end_distance_m": 861.0,
   "midpoint_distance_m": 858.5,
   "start_elevation_m": 171.11069680998617,
   "end_elevation_m": 170.31484998264042,
   "start_xy": [
    953140.9996058766,
    6231374.21439306
   ],
   "end_xy": [
    953136.0449379536,
    6231374.886156241
   ]
  },
  "min_10m": {
   "gradient_pct": -14.601581904473164,
   "start_distance_m": 899.0,
   "end_distance_m": 909.0,
   "midpoint_distance_m": 904.0,
   "start_elevation_m": 166.93929252631898,
   "end_elevation_m": 165.47913433587166,
   "start_xy": [
    953098.9149006762,
    6231368.696776044
   ],
   "end_xy": [
    953089.4485341678,
    6231365.47374872
   ]
  },
  "min_20m": {
   "gradient_pct": -13.73567047424146,
   "start_distance_m": 897.0,
   "end_distance_m": 917.0,
   "midpoint_distance_m": 907.0,
   "start_elevation_m": 167.18323127846907,
   "end_elevation_m": 164.43609718362077,
   "start_xy": [
    953100.808173978,
    6231369.341381508
   ],
   "end_xy": [
    953081.8754409611,
    6231362.895326861
   ]
  },
  "min_25m": {
   "gradient_pct": -13.185573053866051,
   "start_distance_m": 896.0,
   "end_distance_m": 921.0,
   "midpoint_distance_m": 908.5,
   "start_elevation_m": 167.30044913854653,
   "end_elevation_m": 164.00405587508,
   "start_xy": [
    953101.7548106288,
    6231369.663684241
   ],
   "end_xy": [
    953078.0708451726,
    6231361.680912819
   ]
  },
  "min_50m": {
   "gradient_pct": -11.206438160662458,
   "start_distance_m": 825.0,
   "end_distance_m": 875.0,
   "midpoint_distance_m": 850.0,
   "start_elevation_m": 174.5102002620347,
   "end_elevation_m": 168.90698118170346,
   "start_xy": [
    953169.1672459684,
    6231362.272905962
   ],
   "end_xy": [
    953122.0986152783,
    6231374.406496635
   ]
  },
  "min_100m": {
   "gradient_pct": -10.878544346316945,
   "start_distance_m": 827.0,
   "end_distance_m": 927.0,
   "midpoint_distance_m": 877.0,
   "start_elevation_m": 174.33085450041227,
   "end_elevation_m": 163.45231015409533,
   "start_xy": [
    953167.619563286,
    6231363.539664942
   ],
   "end_xy": [
    953072.1341606439,
    6231360.811558573
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.80164674302617,
   "start_distance_m": 4.0,
   "end_distance_m": 6.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 104.2284833801692,
   "end_elevation_m": 104.86451631502972,
   "start_xy": [
    953196.5187103072,
    6230699.914665629
   ],
   "end_xy": [
    953196.0960654608,
    6230701.869498445
   ]
  },
  "max_3m": {
   "gradient_pct": 28.80661427863534,
   "start_distance_m": 196.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 197.5,
   "start_elevation_m": 131.3020132044433,
   "end_elevation_m": 132.16621163280237,
   "start_xy": [
    953287.9617781015,
    6230856.25018129
   ],
   "end_xy": [
    953287.5439106117,
    6230859.220936541
   ]
  }
 },
 "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": 0.003,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.32,
   "obstruction_max_height_m": 14.91,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    208.0,
    213.0
   ]
  ],
  "review": [],
  "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-pr6",
   "road_pbf": "block-batch-fr-pr6.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_E952-N6230_0m5@22LHDQR-2025-03-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E952-N6231_0m5@22LHDQR-2025-03-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E953-N6230_0m5@22LHDQR-2025-03-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E953-N6231_0m5@22LHDQR-2025-03-11.tif"
  ],
  "calculated_at": "2026-09-25T09:15:59+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr6.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr6",
  "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": [
   "E952-N6230",
   "E952-N6231",
   "E953-N6230",
   "E953-N6231"
  ],
  "elevation_blocks": [
   "22LHDQR@2025-03-11"
  ],
  "ign_dalles": [
   "LHD_FXX_0952_6231_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0952_6232_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0953_6231_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0953_6232_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHDQR"
  ],
  "ign_editions": [
   "2025-03-11"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0952_6231_MNT_O_0M50_LAMB93_IGN69": "2025-03-11",
   "LHD_FXX_0952_6232_MNT_O_0M50_LAMB93_IGN69": "2025-03-11",
   "LHD_FXX_0953_6231_MNT_O_0M50_LAMB93_IGN69": "2025-03-11",
   "LHD_FXX_0953_6232_MNT_O_0M50_LAMB93_IGN69": "2025-03-11"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 2,
  "carriageway": {
   "stations": 90,
   "stations_resolved": 90,
   "width_median_m": 5.0,
   "width_p10_m": 3.0,
   "width_min_m": 1.25,
   "width_max_m": 10.5,
   "bounded_share": 0.444,
   "unbounded_share": 0.556,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.38,
   "window_m": [
    374.0,
    399.0
   ],
   "width_at_max25_m": 4.0,
   "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": 90,
    "stations_resolved": 90,
    "width_median_m": 2.62,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 10.75,
    "bounded_share": 0.967,
    "unbounded_share": 0.033,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.5,
    "window_m": [
     374.0,
     399.0
    ],
    "width_at_max25_m": 2.0,
    "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": "Hy\u00e8res",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}