{
 "ocl_version": "0.1.0",
 "name": "Col Santel from Mas-d'Orci\u00e8res",
 "slug": "col-santel-from-mas-d-orcieres",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 20.18354407126708,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 311.0,
   "end_distance_m": 313.0,
   "start_elevation_m": 1138.0612982642785,
   "end_elevation_m": 1138.464969145704,
   "min_gradient_pct": -7.89372636314738
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 20.05472933118047,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 311.0,
   "end_distance_m": 314.0,
   "start_elevation_m": 1138.0612982642785,
   "end_elevation_m": 1138.662940144214,
   "min_gradient_pct": -6.603776907915441
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 18.397545101383912,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 311.0,
   "end_distance_m": 316.0,
   "start_elevation_m": 1138.0612982642785,
   "end_elevation_m": 1138.9811755193477,
   "min_gradient_pct": -6.125885100141204
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 16.853241983098997,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 310.0,
   "end_distance_m": 320.0,
   "start_elevation_m": 1137.9203489056017,
   "end_elevation_m": 1139.6056731039116,
   "min_gradient_pct": -5.2090004698106895
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 16.106722566880762,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 299.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 1136.247840955522,
   "end_elevation_m": 1139.469185468898,
   "min_gradient_pct": -4.767313753872031
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 15.866242883348605,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 294.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 1135.502624748061,
   "end_elevation_m": 1139.469185468898,
   "min_gradient_pct": -4.605694296239562
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.965589283211102,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 277.0,
   "end_distance_m": 327.0,
   "start_elevation_m": 1133.4358612240992,
   "end_elevation_m": 1140.4186558657047,
   "min_gradient_pct": -3.1755841524945936
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.137384181598463,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 292.0,
   "end_distance_m": 392.0,
   "start_elevation_m": 1135.2229548545586,
   "end_elevation_m": 1148.360339036157,
   "min_gradient_pct": -0.9163497827057654
  }
 ],
 "shape": {
  "ascent_concentration": 0.378,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 90.0,
  "shape_class": "sustained"
 },
 "length_m": 1123.6405273408502,
 "start_elevation_m": 1112.3536732167693,
 "end_elevation_m": 1193.6186537109402,
 "endpoint_gain_m": 81.26498049417091,
 "overall_gradient_pct": 7.232293470803196,
 "accumulated_ascent_m": 83.77021558541833,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 18.397545101383912,
   "start_distance_m": 311.0,
   "end_distance_m": 316.0,
   "midpoint_distance_m": 313.5,
   "start_elevation_m": 1138.0612982642785,
   "end_elevation_m": 1138.9811755193477,
   "start_xy": [
    758037.8329312282,
    6374974.194640715
   ],
   "end_xy": [
    758042.39820923,
    6374976.233816226
   ]
  },
  "max_10m": {
   "gradient_pct": 16.853241983098997,
   "start_distance_m": 310.0,
   "end_distance_m": 320.0,
   "midpoint_distance_m": 315.0,
   "start_elevation_m": 1137.9203489056017,
   "end_elevation_m": 1139.6056731039116,
   "start_xy": [
    758036.9198756278,
    6374973.786805613
   ],
   "end_xy": [
    758046.0504316315,
    6374977.865156636
   ]
  },
  "max_20m": {
   "gradient_pct": 16.106722566880762,
   "start_distance_m": 299.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 309.0,
   "start_elevation_m": 1136.247840955522,
   "end_elevation_m": 1139.469185468898,
   "start_xy": [
    758026.8762640238,
    6374969.300619488
   ],
   "end_xy": [
    758045.1373760311,
    6374977.457321533
   ]
  },
  "max_25m": {
   "gradient_pct": 15.866242883348605,
   "start_distance_m": 294.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 306.5,
   "start_elevation_m": 1135.502624748061,
   "end_elevation_m": 1139.469185468898,
   "start_xy": [
    758022.310986022,
    6374967.261443976
   ],
   "end_xy": [
    758045.1373760311,
    6374977.457321533
   ]
  },
  "max_50m": {
   "gradient_pct": 13.965589283211102,
   "start_distance_m": 277.0,
   "end_distance_m": 327.0,
   "midpoint_distance_m": 302.0,
   "start_elevation_m": 1133.4358612240992,
   "end_elevation_m": 1140.4186558657047,
   "start_xy": [
    758007.0332651645,
    6374959.806860284
   ],
   "end_xy": [
    758052.4418208341,
    6374980.720002351
   ]
  },
  "max_100m": {
   "gradient_pct": 13.137384181598463,
   "start_distance_m": 292.0,
   "end_distance_m": 392.0,
   "midpoint_distance_m": 342.0,
   "start_elevation_m": 1135.2229548545586,
   "end_elevation_m": 1148.360339036157,
   "start_xy": [
    758020.5003278494,
    6374966.412783584
   ],
   "end_xy": [
    758057.5964122134,
    6375033.341238929
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.125885100141204,
   "start_distance_m": 1.0,
   "end_distance_m": 6.0,
   "midpoint_distance_m": 3.5,
   "start_elevation_m": 1112.3290534162866,
   "end_elevation_m": 1112.0227591612795,
   "start_xy": [
    757858.0785852809,
    6374925.7784150615
   ],
   "end_xy": [
    757860.5665116856,
    6374930.115490367
   ]
  },
  "min_10m": {
   "gradient_pct": -5.2090004698106895,
   "start_distance_m": 1097.0,
   "end_distance_m": 1107.0,
   "midpoint_distance_m": 1102.0,
   "start_elevation_m": 1194.4584581528184,
   "end_elevation_m": 1193.9375581058373,
   "start_xy": [
    758711.7299499917,
    6375268.11343817
   ],
   "end_xy": [
    758721.2779725519,
    6375271.085170209
   ]
  },
  "min_20m": {
   "gradient_pct": -4.767313753872031,
   "start_distance_m": 1087.0,
   "end_distance_m": 1107.0,
   "midpoint_distance_m": 1097.0,
   "start_elevation_m": 1194.8910208566117,
   "end_elevation_m": 1193.9375581058373,
   "start_xy": [
    758702.1795938072,
    6375265.148527253
   ],
   "end_xy": [
    758721.2779725519,
    6375271.085170209
   ]
  },
  "min_25m": {
   "gradient_pct": -4.605694296239562,
   "start_distance_m": 1084.0,
   "end_distance_m": 1109.0,
   "midpoint_distance_m": 1096.5,
   "start_elevation_m": 1195.014968100404,
   "end_elevation_m": 1193.8635445263442,
   "start_xy": [
    758699.3144869518,
    6375264.259053978
   ],
   "end_xy": [
    758723.1509934159,
    6375271.786449643
   ]
  },
  "min_50m": {
   "gradient_pct": -3.1755841524945936,
   "start_distance_m": 1067.0,
   "end_distance_m": 1117.0,
   "midpoint_distance_m": 1092.0,
   "start_elevation_m": 1195.2273043637858,
   "end_elevation_m": 1193.6395122875385,
   "start_xy": [
    758683.0309849005,
    6375259.39171642
   ],
   "end_xy": [
    758730.6430768715,
    6375274.591567376
   ]
  },
  "min_100m": {
   "gradient_pct": -0.9163497827057654,
   "start_distance_m": 1016.0,
   "end_distance_m": 1116.0,
   "midpoint_distance_m": 1066.0,
   "start_elevation_m": 1194.5623824910501,
   "end_elevation_m": 1193.6460327083444,
   "start_xy": [
    758633.4407031811,
    6375247.485959876
   ],
   "end_xy": [
    758729.7065664396,
    6375274.240927659
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 20.18354407126708,
   "start_distance_m": 311.0,
   "end_distance_m": 313.0,
   "midpoint_distance_m": 312.0,
   "start_elevation_m": 1138.0612982642785,
   "end_elevation_m": 1138.464969145704,
   "start_xy": [
    758037.8329312282,
    6374974.194640715
   ],
   "end_xy": [
    758039.659042429,
    6374975.01031092
   ]
  },
  "max_3m": {
   "gradient_pct": 20.05472933118047,
   "start_distance_m": 311.0,
   "end_distance_m": 314.0,
   "midpoint_distance_m": 312.5,
   "start_elevation_m": 1138.0612982642785,
   "end_elevation_m": 1138.662940144214,
   "start_xy": [
    758037.8329312282,
    6374974.194640715
   ],
   "end_xy": [
    758040.5720980293,
    6374975.418146022
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.088,
   "obstruction_max_height_m": 18.0,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "descends_at_end"
  ]
 },
 "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-mc6",
   "road_pbf": "block-batch-fr-mc6.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_E757-N6374_0m5@21LHD4MO-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E757-N6375_0m5@21LHD4MO-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E758-N6374_0m5@21LHD4MO-2024-12-13.tif",
   "data/cache/fr/ign-lidarhd_dtm_E758-N6375_0m5@21LHD4MO-2024-12-13.tif"
  ],
  "calculated_at": "2026-09-22T15:03:35+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc6.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc6",
  "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": [
   "E757-N6374",
   "E757-N6375",
   "E758-N6374",
   "E758-N6375"
  ],
  "elevation_blocks": [
   "21LHD4MO@2024-12-13"
  ],
  "ign_dalles": [
   "LHD_FXX_0757_6375_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0757_6376_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0758_6375_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0758_6376_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD4MO"
  ],
  "ign_editions": [
   "2024-12-13"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0757_6375_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0757_6376_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0758_6375_MNT_O_0M50_LAMB93_IGN69": "2024-12-13",
   "LHD_FXX_0758_6376_MNT_O_0M50_LAMB93_IGN69": "2024-12-13"
  },
  "climb_origin": "named-pass",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 51,
   "stations_resolved": 51,
   "width_median_m": 4.75,
   "width_p10_m": 3.5,
   "width_min_m": 2.0,
   "width_max_m": 11.0,
   "bounded_share": 0.275,
   "unbounded_share": 0.725,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.88,
   "window_m": [
    294.0,
    319.0
   ],
   "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": 51,
    "stations_resolved": 51,
    "width_median_m": 7.5,
    "width_p10_m": 1.75,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.686,
    "unbounded_share": 0.314,
    "confidence_median": 1.0,
    "width_median_bounded_m": 5.25,
    "window_m": [
     294.0,
     319.0
    ],
    "width_at_max25_m": 9.0,
    "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": "Mont Loz\u00e8re et Goulet",
  "county": "Loz\u00e8re",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}