{
 "ocl_version": "0.1.0",
 "name": "Can de la Roche from Rieutort-de-Randon",
 "slug": "can-de-la-roche-from-rieutort-de-randon",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.54866826203306,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 874.0,
   "end_distance_m": 876.0,
   "start_elevation_m": 1154.2139947038986,
   "end_elevation_m": 1154.7849680691393,
   "min_gradient_pct": -20.78518627415633,
   "suppressed_max_gradient_pct": 97.59622991032302,
   "suppressed_location_m": [
    430.0,
    432.0
   ],
   "suppressed_min_gradient_pct": -81.89040827437566,
   "suppressed_min_location_m": [
    393.0,
    395.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.335548848460956,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 875.0,
   "end_distance_m": 878.0,
   "start_elevation_m": 1154.273581483491,
   "end_elevation_m": 1154.9436479489448,
   "min_gradient_pct": -12.863644886639728,
   "suppressed_max_gradient_pct": 75.84613709670218,
   "suppressed_location_m": [
    429.0,
    432.0
   ],
   "suppressed_min_gradient_pct": -63.89058612067705,
   "suppressed_min_location_m": [
    392.0,
    395.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 15.742516718055413,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 873.0,
   "end_distance_m": 878.0,
   "start_elevation_m": 1154.156522113042,
   "end_elevation_m": 1154.9436479489448,
   "min_gradient_pct": -7.582387347479198,
   "suppressed_max_gradient_pct": 46.99248461975458,
   "suppressed_location_m": [
    429.0,
    434.0
   ],
   "suppressed_min_gradient_pct": -38.60071216672168,
   "suppressed_min_location_m": [
    391.0,
    396.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 10.493923366109357,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 868.0,
   "end_distance_m": 878.0,
   "start_elevation_m": 1153.8942556123338,
   "end_elevation_m": 1154.9436479489448,
   "min_gradient_pct": -3.677569010303614,
   "suppressed_max_gradient_pct": 25.12321634880209,
   "suppressed_location_m": [
    429.0,
    439.0
   ],
   "suppressed_min_gradient_pct": -18.912250213290918,
   "suppressed_min_location_m": [
    386.0,
    396.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 7.91879511458319,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 858.0,
   "end_distance_m": 878.0,
   "start_elevation_m": 1153.3598889260281,
   "end_elevation_m": 1154.9436479489448,
   "min_gradient_pct": -2.9454389172724404,
   "suppressed_max_gradient_pct": 14.412227322227409,
   "suppressed_location_m": [
    429.0,
    449.0
   ],
   "suppressed_min_gradient_pct": -10.69725878659483,
   "suppressed_min_location_m": [
    387.0,
    407.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 7.339523281843867,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 853.0,
   "end_distance_m": 878.0,
   "start_elevation_m": 1153.1087671284838,
   "end_elevation_m": 1154.9436479489448,
   "min_gradient_pct": -2.888376020316173,
   "suppressed_max_gradient_pct": 12.386124101640235,
   "suppressed_location_m": [
    429.0,
    454.0
   ],
   "suppressed_min_gradient_pct": -8.462105830772998,
   "suppressed_min_location_m": [
    382.0,
    407.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 7.133879749841981,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 1456.0,
   "end_distance_m": 1506.0,
   "start_elevation_m": 1189.3297557706626,
   "end_elevation_m": 1192.8966956455836,
   "min_gradient_pct": -2.709518429541731,
   "suppressed_max_gradient_pct": 8.606105308469068,
   "suppressed_location_m": [
    429.0,
    479.0
   ],
   "suppressed_min_gradient_pct": -3.755276448564018,
   "suppressed_min_location_m": [
    357.0,
    407.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 7.066776917500192,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1276.0,
   "end_distance_m": 1376.0,
   "start_elevation_m": 1176.727657693701,
   "end_elevation_m": 1183.7944346112013,
   "min_gradient_pct": -2.2031886647353076
  }
 ],
 "shape": {
  "ascent_concentration": 0.424,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 19.0,
  "shape_class": "sustained"
 },
 "length_m": 3356.000000000291,
 "start_elevation_m": 1123.2928097851545,
 "end_elevation_m": 1236.8795332705358,
 "endpoint_gain_m": 113.5867234853813,
 "overall_gradient_pct": 3.384586516250639,
 "accumulated_ascent_m": 124.83133586992722,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 15.742516718055413,
   "start_distance_m": 873.0,
   "end_distance_m": 878.0,
   "midpoint_distance_m": 875.5,
   "start_elevation_m": 1154.156522113042,
   "end_elevation_m": 1154.9436479489448,
   "start_xy": [
    737626.1489142757,
    6391697.316668736
   ],
   "end_xy": [
    737627.1542313627,
    6391692.418777602
   ]
  },
  "max_10m": {
   "gradient_pct": 10.493923366109357,
   "start_distance_m": 868.0,
   "end_distance_m": 878.0,
   "midpoint_distance_m": 873.0,
   "start_elevation_m": 1153.8942556123338,
   "end_elevation_m": 1154.9436479489448,
   "start_xy": [
    737625.1435971886,
    6391702.214559869
   ],
   "end_xy": [
    737627.1542313627,
    6391692.418777602
   ]
  },
  "max_20m": {
   "gradient_pct": 7.91879511458319,
   "start_distance_m": 858.0,
   "end_distance_m": 878.0,
   "midpoint_distance_m": 868.0,
   "start_elevation_m": 1153.3598889260281,
   "end_elevation_m": 1154.9436479489448,
   "start_xy": [
    737623.2660828865,
    6391712.033446566
   ],
   "end_xy": [
    737627.1542313627,
    6391692.418777602
   ]
  },
  "max_25m": {
   "gradient_pct": 7.339523281843867,
   "start_distance_m": 853.0,
   "end_distance_m": 878.0,
   "midpoint_distance_m": 865.5,
   "start_elevation_m": 1153.1087671284838,
   "end_elevation_m": 1154.9436479489448,
   "start_xy": [
    737622.5621543914,
    6391716.9836470345
   ],
   "end_xy": [
    737627.1542313627,
    6391692.418777602
   ]
  },
  "max_50m": {
   "gradient_pct": 7.133879749841981,
   "start_distance_m": 1456.0,
   "end_distance_m": 1506.0,
   "midpoint_distance_m": 1481.0,
   "start_elevation_m": 1189.3297557706626,
   "end_elevation_m": 1192.8966956455836,
   "start_xy": [
    737823.2967324095,
    6391152.534163357
   ],
   "end_xy": [
    737844.4394328605,
    6391107.27692407
   ]
  },
  "max_100m": {
   "gradient_pct": 7.066776917500192,
   "start_distance_m": 1276.0,
   "end_distance_m": 1376.0,
   "midpoint_distance_m": 1326.0,
   "start_elevation_m": 1176.727657693701,
   "end_elevation_m": 1183.7944346112013,
   "start_xy": [
    737744.1501995955,
    6391314.198186243
   ],
   "end_xy": [
    737787.9835155467,
    6391224.318400588
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.582387347479198,
   "start_distance_m": 402.0,
   "end_distance_m": 407.0,
   "midpoint_distance_m": 404.5,
   "start_elevation_m": 1128.9783824051765,
   "end_elevation_m": 1128.5992630378025,
   "start_xy": [
    737747.3904350258,
    6392129.354598343
   ],
   "end_xy": [
    737748.2821050708,
    6392124.434748291
   ]
  },
  "min_10m": {
   "gradient_pct": -3.677569010303614,
   "start_distance_m": 397.0,
   "end_distance_m": 407.0,
   "midpoint_distance_m": 402.0,
   "start_elevation_m": 1128.967019938833,
   "end_elevation_m": 1128.5992630378025,
   "start_xy": [
    737746.4987649808,
    6392134.274448395
   ],
   "end_xy": [
    737748.2821050708,
    6392124.434748291
   ]
  },
  "min_20m": {
   "gradient_pct": -2.9454389172724404,
   "start_distance_m": 2183.0,
   "end_distance_m": 2203.0,
   "midpoint_distance_m": 2193.0,
   "start_elevation_m": 1208.5405065728644,
   "end_elevation_m": 1207.95141878941,
   "start_xy": [
    738245.5539860787,
    6390616.998817105
   ],
   "end_xy": [
    738256.7984836994,
    6390600.482930212
   ]
  },
  "min_25m": {
   "gradient_pct": -2.888376020316173,
   "start_distance_m": 2183.0,
   "end_distance_m": 2208.0,
   "midpoint_distance_m": 2195.5,
   "start_elevation_m": 1208.5405065728644,
   "end_elevation_m": 1207.8184125677853,
   "start_xy": [
    738245.5539860787,
    6390616.998817105
   ],
   "end_xy": [
    738259.5595612916,
    6390596.314423222
   ]
  },
  "min_50m": {
   "gradient_pct": -2.709518429541731,
   "start_distance_m": 2182.0,
   "end_distance_m": 2232.0,
   "midpoint_distance_m": 2207.0,
   "start_elevation_m": 1208.5511653206881,
   "end_elevation_m": 1207.1964061059173,
   "start_xy": [
    738244.8707643817,
    6390617.72902811
   ],
   "end_xy": [
    738271.3862984766,
    6390575.469229985
   ]
  },
  "min_100m": {
   "gradient_pct": -2.2031886647353076,
   "start_distance_m": 2148.0,
   "end_distance_m": 2248.0,
   "midpoint_distance_m": 2198.0,
   "start_elevation_m": 1209.137840257658,
   "end_elevation_m": 1206.9346515929226,
   "start_xy": [
    738221.6412266839,
    6390642.556202302
   ],
   "end_xy": [
    738278.7121531777,
    6390561.244889828
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.54866826203306,
   "start_distance_m": 874.0,
   "end_distance_m": 876.0,
   "midpoint_distance_m": 875.0,
   "start_elevation_m": 1154.2139947038986,
   "end_elevation_m": 1154.7849680691393,
   "start_xy": [
    737626.3499776932,
    6391696.337090509
   ],
   "end_xy": [
    737626.752104528,
    6391694.377934055
   ]
  },
  "max_3m": {
   "gradient_pct": 22.335548848460956,
   "start_distance_m": 875.0,
   "end_distance_m": 878.0,
   "midpoint_distance_m": 876.5,
   "start_elevation_m": 1154.273581483491,
   "end_elevation_m": 1154.9436479489448,
   "start_xy": [
    737626.5510411105,
    6391695.357512282
   ],
   "end_xy": [
    737627.1542313627,
    6391692.418777602
   ]
  }
 },
 "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": 0.01,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.008,
   "obstruction_max_height_m": 2.42,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    391.0,
    396.0
   ],
   [
    428.0,
    434.0
   ],
   [
    2303.0,
    2321.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1",
   "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-mc5",
   "road_pbf": "block-batch-fr-mc5.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_E737-N6390_0m5@21LHD4MN-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E737-N6391_0m5@21LHD4MN-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E737-N6392_0m5@21LHD4MN-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E738-N6388_0m5@21LHD4MN-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E738-N6389_0m5@21LHD4MN-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E738-N6390_0m5@21LHD4MN-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E738-N6391_0m5@21LHD4MN-2024-12-13.tif"
  ],
  "calculated_at": "2026-09-22T15:30:04+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc5.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc5",
  "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": [
   "E737-N6390",
   "E737-N6391",
   "E737-N6392",
   "E738-N6388",
   "E738-N6389",
   "E738-N6390",
   "E738-N6391"
  ],
  "elevation_blocks": [
   "21LHD4MN@2024-12-13"
  ],
  "ign_dalles": [
   "LHD_FXX_0737_6391_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0737_6392_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0737_6393_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0738_6389_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0738_6390_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0738_6391_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0738_6392_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD4MN"
  ],
  "ign_editions": [
   "2024-12-13"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0737_6391_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0737_6392_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0737_6393_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0738_6389_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0738_6390_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0738_6391_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0738_6392_MNT_O_0M50_LAMB93_IGN69": "2024-12-13"
  },
  "route_summit_trim_m": 684.8,
  "route_summit_trim_loss_m": 12.9,
  "climb_origin": "named-pass",
  "structure_own_ways": 6,
  "structure_mask_ranges_m": [
   [
    2308.3,
    2316.5
   ]
  ],
  "carriageway": {
   "stations": 141,
   "stations_resolved": 141,
   "width_median_m": 9.5,
   "width_p10_m": 8.0,
   "width_min_m": 0.5,
   "width_max_m": 12.0,
   "bounded_share": 0.149,
   "unbounded_share": 0.851,
   "confidence_median": 0.0,
   "width_median_bounded_m": 8.75,
   "window_m": [
    853.0,
    878.0
   ],
   "width_at_max25_m": 8.75,
   "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": 141,
    "stations_resolved": 141,
    "width_median_m": 12.0,
    "width_p10_m": 10.25,
    "width_min_m": 2.5,
    "width_max_m": 12.0,
    "bounded_share": 0.121,
    "unbounded_share": 0.879,
    "confidence_median": 0.0,
    "width_median_bounded_m": 10.25,
    "window_m": [
     853.0,
     878.0
    ],
    "width_at_max25_m": 12.0,
    "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": "Monts-de-Randon",
  "county": "Loz\u00e8re",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}