{
 "ocl_version": "0.1.0",
 "name": "Chemin de Car\u00e9neau",
 "slug": "chemin-de-careneau",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.39174894335281,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 60.0,
   "end_distance_m": 62.0,
   "start_elevation_m": 129.02947353746026,
   "end_elevation_m": 129.51730851632732,
   "min_gradient_pct": 0.33510634164315434,
   "suppressed_max_gradient_pct": 49.91230659326931,
   "suppressed_location_m": [
    429.0,
    431.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.6491845510803,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 60.0,
   "end_distance_m": 63.0,
   "start_elevation_m": 129.02947353746026,
   "end_elevation_m": 129.73894907399267,
   "min_gradient_pct": 1.1204946993274234,
   "suppressed_max_gradient_pct": 45.12859608849453,
   "suppressed_location_m": [
    428.0,
    431.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.204800940630207,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 60.0,
   "end_distance_m": 65.0,
   "start_elevation_m": 129.02947353746026,
   "end_elevation_m": 130.13971358449177,
   "min_gradient_pct": 1.8969423792924545,
   "suppressed_max_gradient_pct": 37.958816378541655,
   "suppressed_location_m": [
    426.0,
    431.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.82915385262396,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 56.0,
   "end_distance_m": 66.0,
   "start_elevation_m": 128.26364994321784,
   "end_elevation_m": 130.34656532848024,
   "min_gradient_pct": 2.375955389682076,
   "suppressed_max_gradient_pct": 26.45242111891264,
   "suppressed_location_m": [
    421.0,
    431.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.35600390387529,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 60.0,
   "end_distance_m": 80.0,
   "start_elevation_m": 129.02947353746026,
   "end_elevation_m": 133.10067431823532,
   "min_gradient_pct": 2.8227022202959517
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.227271244999656,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 56.0,
   "end_distance_m": 81.0,
   "start_elevation_m": 128.26364994321784,
   "end_elevation_m": 133.32046775446776,
   "min_gradient_pct": 2.967503969814743
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.76047701043308,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 55.0,
   "end_distance_m": 105.0,
   "start_elevation_m": 128.09307645087242,
   "end_elevation_m": 136.97331495608896,
   "min_gradient_pct": 3.3920832395136813
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.195812517327397,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 55.0,
   "end_distance_m": 155.0,
   "start_elevation_m": 128.09307645087242,
   "end_elevation_m": 143.2888889681998,
   "min_gradient_pct": 4.535262622712253
  }
 ],
 "shape": {
  "ascent_concentration": 0.363,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 92.0,
  "shape_class": "sustained"
 },
 "length_m": 431.0760999463285,
 "start_elevation_m": 122.70868685516386,
 "end_elevation_m": 167.33594217903726,
 "endpoint_gain_m": 44.6272553238734,
 "overall_gradient_pct": 10.352523679561394,
 "accumulated_ascent_m": 44.631254082113074,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.204800940630207,
   "start_distance_m": 60.0,
   "end_distance_m": 65.0,
   "midpoint_distance_m": 62.5,
   "start_elevation_m": 129.02947353746026,
   "end_elevation_m": 130.13971358449177,
   "start_xy": [
    792885.8363630436,
    6318521.417338543
   ],
   "end_xy": [
    792890.0397873347,
    6318518.7097151885
   ]
  },
  "max_10m": {
   "gradient_pct": 20.82915385262396,
   "start_distance_m": 56.0,
   "end_distance_m": 66.0,
   "midpoint_distance_m": 61.0,
   "start_elevation_m": 128.26364994321784,
   "end_elevation_m": 130.34656532848024,
   "start_xy": [
    792882.4736236107,
    6318523.583437226
   ],
   "end_xy": [
    792890.8804721929,
    6318518.168190517
   ]
  },
  "max_20m": {
   "gradient_pct": 20.35600390387529,
   "start_distance_m": 60.0,
   "end_distance_m": 80.0,
   "midpoint_distance_m": 70.0,
   "start_elevation_m": 129.02947353746026,
   "end_elevation_m": 133.10067431823532,
   "start_xy": [
    792885.8363630436,
    6318521.417338543
   ],
   "end_xy": [
    792902.5054193444,
    6318510.38026256
   ]
  },
  "max_25m": {
   "gradient_pct": 20.227271244999656,
   "start_distance_m": 56.0,
   "end_distance_m": 81.0,
   "midpoint_distance_m": 68.5,
   "start_elevation_m": 128.26364994321784,
   "end_elevation_m": 133.32046775446776,
   "start_xy": [
    792882.4736236107,
    6318523.583437226
   ],
   "end_xy": [
    792903.3018557602,
    6318509.775540281
   ]
  },
  "max_50m": {
   "gradient_pct": 17.76047701043308,
   "start_distance_m": 55.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 80.0,
   "start_elevation_m": 128.09307645087242,
   "end_elevation_m": 136.97331495608896,
   "start_xy": [
    792881.6329387525,
    6318524.124961897
   ],
   "end_xy": [
    792922.4163297385,
    6318495.262205566
   ]
  },
  "max_100m": {
   "gradient_pct": 15.195812517327397,
   "start_distance_m": 55.0,
   "end_distance_m": 155.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 128.09307645087242,
   "end_elevation_m": 143.2888889681998,
   "start_xy": [
    792881.6329387525,
    6318524.124961897
   ],
   "end_xy": [
    792960.5446346632,
    6318462.98530279
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.8969423792924545,
   "start_distance_m": 309.0,
   "end_distance_m": 314.0,
   "midpoint_distance_m": 311.5,
   "start_elevation_m": 156.2175080343841,
   "end_elevation_m": 156.31235515334873,
   "start_xy": [
    793104.815660205,
    6318445.180005287
   ],
   "end_xy": [
    793109.6055033724,
    6318443.745640469
   ]
  },
  "min_10m": {
   "gradient_pct": 2.375955389682076,
   "start_distance_m": 312.0,
   "end_distance_m": 322.0,
   "midpoint_distance_m": 317.0,
   "start_elevation_m": 156.30565302651587,
   "end_elevation_m": 156.54324856548408,
   "start_xy": [
    793107.6895661054,
    6318444.319386396
   ],
   "end_xy": [
    793117.2692524402,
    6318441.45065676
   ]
  },
  "min_20m": {
   "gradient_pct": 2.8227022202959517,
   "start_distance_m": 303.0,
   "end_distance_m": 323.0,
   "midpoint_distance_m": 313.0,
   "start_elevation_m": 156.00581595840794,
   "end_elevation_m": 156.57035640246713,
   "start_xy": [
    793099.067848404,
    6318446.901243068
   ],
   "end_xy": [
    793118.2272210737,
    6318441.163783796
   ]
  },
  "min_25m": {
   "gradient_pct": 2.967503969814743,
   "start_distance_m": 302.0,
   "end_distance_m": 327.0,
   "midpoint_distance_m": 314.5,
   "start_elevation_m": 155.97008166567343,
   "end_elevation_m": 156.71195765812712,
   "start_xy": [
    793098.1098797705,
    6318447.188116033
   ],
   "end_xy": [
    793122.0590956076,
    6318440.0162919415
   ]
  },
  "min_50m": {
   "gradient_pct": 3.3920832395136813,
   "start_distance_m": 300.0,
   "end_distance_m": 350.0,
   "midpoint_distance_m": 325.0,
   "start_elevation_m": 155.88902659366556,
   "end_elevation_m": 157.5850682134224,
   "start_xy": [
    793096.1939425035,
    6318447.7618619595
   ],
   "end_xy": [
    793144.3689107075,
    6318435.817280994
   ]
  },
  "min_100m": {
   "gradient_pct": 4.535262622712253,
   "start_distance_m": 264.0,
   "end_distance_m": 364.0,
   "midpoint_distance_m": 314.0,
   "start_elevation_m": 153.88852515507827,
   "end_elevation_m": 158.42378777779052,
   "start_xy": [
    793062.5808496147,
    6318446.326361125
   ],
   "end_xy": [
    793152.17567875,
    6318424.554932382
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.39174894335281,
   "start_distance_m": 60.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 61.0,
   "start_elevation_m": 129.02947353746026,
   "end_elevation_m": 129.51730851632732,
   "start_xy": [
    792885.8363630436,
    6318521.417338543
   ],
   "end_xy": [
    792887.51773276,
    6318520.334289201
   ]
  },
  "max_3m": {
   "gradient_pct": 23.6491845510803,
   "start_distance_m": 60.0,
   "end_distance_m": 63.0,
   "midpoint_distance_m": 61.5,
   "start_elevation_m": 129.02947353746026,
   "end_elevation_m": 129.73894907399267,
   "start_xy": [
    792885.8363630436,
    6318521.417338543
   ],
   "end_xy": [
    792888.3584176183,
    6318519.79276453
   ]
  }
 },
 "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": 0.019,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 426.0,
     "end_m": 431.0,
     "raw_pct": 37.96,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.252,
   "obstruction_max_height_m": 11.27,
   "flagged_windows_m": [
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    424.0,
    431.0
   ]
  ],
  "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-mc7",
   "road_pbf": "block-batch-fr-mc7.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_E792-N6318_0m5@21LHD7NP-2024-12-19.tif",
   "data/cache/fr/ign-lidarhd_dtm_E793-N6318_0m5@21LHD7NP-2024-12-19.tif"
  ],
  "calculated_at": "2026-09-22T15:09:58+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc7.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc7",
  "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": [
   "E792-N6318",
   "E793-N6318"
  ],
  "elevation_blocks": [
   "21LHD7NP@2024-12-19"
  ],
  "ign_dalles": [
   "LHD_FXX_0792_6319_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0793_6319_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7NP"
  ],
  "ign_editions": [
   "2024-12-19"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0792_6319_MNT_O_0M50_LAMB93_IGN69": "2024-12-19",
   "LHD_FXX_0793_6319_MNT_O_0M50_LAMB93_IGN69": "2024-12-19"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 5,
  "carriageway": {
   "stations": 24,
   "stations_resolved": 24,
   "width_median_m": 5.12,
   "width_p10_m": 3.08,
   "width_min_m": 1.75,
   "width_max_m": 12.0,
   "bounded_share": 0.417,
   "unbounded_share": 0.583,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.75,
   "window_m": [
    56.0,
    81.0
   ],
   "width_at_max25_m": 4.5,
   "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": 24,
    "stations_resolved": 24,
    "width_median_m": 3.25,
    "width_p10_m": 1.08,
    "width_min_m": 0.75,
    "width_max_m": 12.0,
    "bounded_share": 0.792,
    "unbounded_share": 0.208,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.5,
    "window_m": [
     56.0,
     81.0
    ],
    "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": "Mauressargues",
  "county": "Gard",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}