{
 "ocl_version": "0.1.0",
 "name": "Chemin des Platri\u00e8res",
 "slug": "chemin-des-platrieres-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.289873216351793,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 656.0,
   "end_distance_m": 658.0,
   "start_elevation_m": 242.0228746177838,
   "end_elevation_m": 242.64867208211083,
   "min_gradient_pct": -17.820893637302504,
   "suppressed_max_gradient_pct": 82.35004004075392,
   "suppressed_location_m": [
    662.0,
    664.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.59233384191566,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 868.0,
   "end_distance_m": 871.0,
   "start_elevation_m": 276.5897657781617,
   "end_elevation_m": 277.38753579341915,
   "min_gradient_pct": -12.266335906600526,
   "suppressed_max_gradient_pct": 61.841407949344784,
   "suppressed_location_m": [
    788.0,
    791.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.684794816798785,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 868.0,
   "end_distance_m": 873.0,
   "start_elevation_m": 276.5897657781617,
   "end_elevation_m": 277.8240055190016,
   "min_gradient_pct": -7.73738989510889,
   "suppressed_max_gradient_pct": 47.305753239165824,
   "suppressed_location_m": [
    786.0,
    791.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.75246283211709,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 882.0,
   "end_distance_m": 892.0,
   "start_elevation_m": 279.4779939341112,
   "end_elevation_m": 281.85324021732293,
   "min_gradient_pct": -3.700869909781659,
   "suppressed_max_gradient_pct": 30.740025651624023,
   "suppressed_location_m": [
    781.0,
    791.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.298683365019087,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 879.0,
   "end_distance_m": 899.0,
   "start_elevation_m": 278.8439369172836,
   "end_elevation_m": 283.3036735902874,
   "min_gradient_pct": -1.5733312586741022
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.989671046474314,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 881.0,
   "end_distance_m": 906.0,
   "start_elevation_m": 279.2471824444735,
   "end_elevation_m": 284.74460020609206,
   "min_gradient_pct": -0.8409270712654688
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.32819010914318,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 862.0,
   "end_distance_m": 912.0,
   "start_elevation_m": 275.2884422835033,
   "end_elevation_m": 285.9525373380749,
   "min_gradient_pct": 2.68983711753674
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.469451655991918,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 817.0,
   "end_distance_m": 917.0,
   "start_elevation_m": 267.39689795617863,
   "end_elevation_m": 286.86634961217055,
   "min_gradient_pct": 4.861019183574115
  }
 ],
 "shape": {
  "ascent_concentration": 0.375,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 156.0,
  "shape_class": "sustained"
 },
 "length_m": 1137.247701298043,
 "start_elevation_m": 175.24984162839974,
 "end_elevation_m": 302.899547806143,
 "endpoint_gain_m": 127.64970617774327,
 "overall_gradient_pct": 11.22444178449824,
 "accumulated_ascent_m": 129.44449582838095,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.684794816798785,
   "start_distance_m": 868.0,
   "end_distance_m": 873.0,
   "midpoint_distance_m": 870.5,
   "start_elevation_m": 276.5897657781617,
   "end_elevation_m": 277.8240055190016,
   "start_xy": [
    928120.7034472526,
    6236134.563565427
   ],
   "end_xy": [
    928123.3506346914,
    6236130.321820661
   ]
  },
  "max_10m": {
   "gradient_pct": 23.75246283211709,
   "start_distance_m": 882.0,
   "end_distance_m": 892.0,
   "midpoint_distance_m": 887.0,
   "start_elevation_m": 279.4779939341112,
   "end_elevation_m": 281.85324021732293,
   "start_xy": [
    928127.6064734358,
    6236122.4019008465
   ],
   "end_xy": [
    928132.0647078422,
    6236113.450691655
   ]
  },
  "max_20m": {
   "gradient_pct": 22.298683365019087,
   "start_distance_m": 879.0,
   "end_distance_m": 899.0,
   "midpoint_distance_m": 889.0,
   "start_elevation_m": 278.8439369172836,
   "end_elevation_m": 283.3036735902874,
   "start_xy": [
    928126.2690031138,
    6236125.087263604
   ],
   "end_xy": [
    928135.1854719267,
    6236107.184845222
   ]
  },
  "max_25m": {
   "gradient_pct": 21.989671046474314,
   "start_distance_m": 881.0,
   "end_distance_m": 906.0,
   "midpoint_distance_m": 893.5,
   "start_elevation_m": 279.2471824444735,
   "end_elevation_m": 284.74460020609206,
   "start_xy": [
    928127.1606499951,
    6236123.297021765
   ],
   "end_xy": [
    928138.3062360113,
    6236100.918998788
   ]
  },
  "max_50m": {
   "gradient_pct": 21.32819010914318,
   "start_distance_m": 862.0,
   "end_distance_m": 912.0,
   "midpoint_distance_m": 887.0,
   "start_elevation_m": 275.2884422835033,
   "end_elevation_m": 285.9525373380749,
   "start_xy": [
    928117.5268223261,
    6236139.653659148
   ],
   "end_xy": [
    928140.9811766552,
    6236095.548273274
   ]
  },
  "max_100m": {
   "gradient_pct": 19.469451655991918,
   "start_distance_m": 817.0,
   "end_distance_m": 917.0,
   "midpoint_distance_m": 867.0,
   "start_elevation_m": 267.39689795617863,
   "end_elevation_m": 286.86634961217055,
   "start_xy": [
    928086.0108933758,
    6236169.196691533
   ],
   "end_xy": [
    928143.2102938584,
    6236091.072668678
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.73738989510889,
   "start_distance_m": 1131.0,
   "end_distance_m": 1136.0,
   "midpoint_distance_m": 1133.5,
   "start_elevation_m": 303.3038486755659,
   "end_elevation_m": 302.9169791808105,
   "start_xy": [
    928283.4156934692,
    6235939.045243333
   ],
   "end_xy": [
    928287.57506848,
    6235936.270428111
   ]
  },
  "min_10m": {
   "gradient_pct": -3.700869909781659,
   "start_distance_m": 1084.0,
   "end_distance_m": 1094.0,
   "midpoint_distance_m": 1089.0,
   "start_elevation_m": 300.82231458457426,
   "end_elevation_m": 300.4522275935961,
   "start_xy": [
    928244.5080459513,
    6235965.394596139
   ],
   "end_xy": [
    928252.6363183891,
    6235959.57887598
   ]
  },
  "min_20m": {
   "gradient_pct": -1.5733312586741022,
   "start_distance_m": 1079.0,
   "end_distance_m": 1099.0,
   "midpoint_distance_m": 1089.0,
   "start_elevation_m": 300.8484351309858,
   "end_elevation_m": 300.533768879251,
   "start_xy": [
    928240.540483267,
    6235968.437365658
   ],
   "end_xy": [
    928256.7956934,
    6235956.804060758
   ]
  },
  "min_25m": {
   "gradient_pct": -0.8409270712654688,
   "start_distance_m": 1072.0,
   "end_distance_m": 1097.0,
   "midpoint_distance_m": 1084.5,
   "start_elevation_m": 300.7170805744799,
   "end_elevation_m": 300.5068488066635,
   "start_xy": [
    928234.9858955094,
    6235972.697242985
   ],
   "end_xy": [
    928255.1319433956,
    6235957.913986847
   ]
  },
  "min_50m": {
   "gradient_pct": 2.68983711753674,
   "start_distance_m": 1064.0,
   "end_distance_m": 1114.0,
   "midpoint_distance_m": 1089.0,
   "start_elevation_m": 300.2240129016739,
   "end_elevation_m": 301.5689314604423,
   "start_xy": [
    928228.6377952148,
    6235977.565674216
   ],
   "end_xy": [
    928269.2738184324,
    6235948.47961509
   ]
  },
  "min_100m": {
   "gradient_pct": 4.861019183574115,
   "start_distance_m": 1037.0,
   "end_distance_m": 1137.0,
   "midpoint_distance_m": 1087.0,
   "start_elevation_m": 298.035684275435,
   "end_elevation_m": 302.89670345900913,
   "start_xy": [
    928207.2129567205,
    6235993.99662962
   ],
   "end_xy": [
    928288.4069434821,
    6235935.715465066
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.289873216351793,
   "start_distance_m": 656.0,
   "end_distance_m": 658.0,
   "midpoint_distance_m": 657.0,
   "start_elevation_m": 242.0228746177838,
   "end_elevation_m": 242.64867208211083,
   "start_xy": [
    928120.58514058,
    6236297.59470715
   ],
   "end_xy": [
    928119.8476338193,
    6236295.735652611
   ]
  },
  "max_3m": {
   "gradient_pct": 26.59233384191566,
   "start_distance_m": 868.0,
   "end_distance_m": 871.0,
   "midpoint_distance_m": 869.5,
   "start_elevation_m": 276.5897657781617,
   "end_elevation_m": 277.38753579341915,
   "start_xy": [
    928120.7034472526,
    6236134.563565427
   ],
   "end_xy": [
    928122.2917597159,
    6236132.018518568
   ]
  }
 },
 "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": 0.012,
   "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": 0.37,
   "obstruction_max_height_m": 21.98,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    660.0,
    666.0
   ],
   [
    787.0,
    793.0
   ]
  ],
  "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-pr5",
   "road_pbf": "block-batch-fr-pr5.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_E927-N6235_0m5@21LHD7PQ-2025-03-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E927-N6236_0m5@21LHD7PQ-2025-03-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E928-N6235_0m5@21LHD7PQ-2025-03-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E928-N6236_0m5@21LHD7PQ-2025-03-14.tif"
  ],
  "calculated_at": "2026-09-25T08:56:27+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr5.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr5",
  "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": [
   "E927-N6235",
   "E927-N6236",
   "E928-N6235",
   "E928-N6236"
  ],
  "elevation_blocks": [
   "21LHD7PQ@2025-03-14"
  ],
  "ign_dalles": [
   "LHD_FXX_0927_6236_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0927_6237_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0928_6236_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0928_6237_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7PQ"
  ],
  "ign_editions": [
   "2025-03-14"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0927_6236_MNT_O_0M50_LAMB93_IGN69": "2025-03-14",
   "LHD_FXX_0927_6237_MNT_O_0M50_LAMB93_IGN69": "2025-03-14",
   "LHD_FXX_0928_6236_MNT_O_0M50_LAMB93_IGN69": "2025-03-14",
   "LHD_FXX_0928_6237_MNT_O_0M50_LAMB93_IGN69": "2025-03-14"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 2,
  "carriageway": {
   "stations": 52,
   "stations_resolved": 52,
   "width_median_m": 3.5,
   "width_p10_m": 1.5,
   "width_min_m": 1.25,
   "width_max_m": 10.0,
   "bounded_share": 0.519,
   "unbounded_share": 0.481,
   "confidence_median": 0.518,
   "width_median_bounded_m": 3.25,
   "window_m": [
    881.0,
    906.0
   ],
   "width_at_max25_m": 1.5,
   "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": 52,
    "stations_resolved": 52,
    "width_median_m": 2.75,
    "width_p10_m": 1.03,
    "width_min_m": 0.5,
    "width_max_m": 11.75,
    "bounded_share": 0.942,
    "unbounded_share": 0.058,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.5,
    "window_m": [
     881.0,
     906.0
    ],
    "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": "Le Beausset",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}