{
 "ocl_version": "0.1.0",
 "name": "Chemin des Cr\u00eates",
 "slug": "chemin-des-cretes-3",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.020492803488196,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 281.0,
   "end_distance_m": 283.0,
   "start_elevation_m": 527.7087019464756,
   "end_elevation_m": 528.2891118025453,
   "min_gradient_pct": -9.498820165805455,
   "suppressed_max_gradient_pct": 53.659309149298906,
   "suppressed_location_m": [
    5.0,
    7.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.845610991041212,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 280.0,
   "end_distance_m": 283.0,
   "start_elevation_m": 527.5137434728141,
   "end_elevation_m": 528.2891118025453,
   "min_gradient_pct": -8.638469839146032,
   "suppressed_max_gradient_pct": 53.15120058684215,
   "suppressed_location_m": [
    4.0,
    7.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.192575765642687,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 278.0,
   "end_distance_m": 283.0,
   "start_elevation_m": 527.1294830142632,
   "end_elevation_m": 528.2891118025453,
   "min_gradient_pct": -8.319599715368895,
   "suppressed_max_gradient_pct": 47.20718936443973,
   "suppressed_location_m": [
    3.0,
    8.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.506685294922363,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 273.0,
   "end_distance_m": 283.0,
   "start_elevation_m": 526.1384432730531,
   "end_elevation_m": 528.2891118025453,
   "min_gradient_pct": -7.955103550007152,
   "suppressed_max_gradient_pct": 25.119805300008693,
   "suppressed_location_m": [
    2.0,
    12.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.68770830019787,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 263.0,
   "end_distance_m": 283.0,
   "start_elevation_m": 524.1515701425058,
   "end_elevation_m": 528.2891118025453,
   "min_gradient_pct": -7.627557701706564
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.184982125527767,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 258.0,
   "end_distance_m": 283.0,
   "start_elevation_m": 523.2428662711634,
   "end_elevation_m": 528.2891118025453,
   "min_gradient_pct": -7.207587924548534
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.52119721941108,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 257.0,
   "end_distance_m": 307.0,
   "start_elevation_m": 523.0634093826937,
   "end_elevation_m": 532.8240079923993,
   "min_gradient_pct": -5.190232000502874
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.012346592774065,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 234.0,
   "end_distance_m": 334.0,
   "start_elevation_m": 519.816208112796,
   "end_elevation_m": 536.82855470557,
   "min_gradient_pct": -3.1326902483792765
  }
 ],
 "shape": {
  "ascent_concentration": 0.411,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 202.0,
  "shape_class": "sustained"
 },
 "length_m": 1860.0000000000593,
 "start_elevation_m": 507.3609877356932,
 "end_elevation_m": 621.0927516701103,
 "endpoint_gain_m": 113.73176393441707,
 "overall_gradient_pct": 6.114610964215776,
 "accumulated_ascent_m": 120.95685514945006,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.192575765642687,
   "start_distance_m": 278.0,
   "end_distance_m": 283.0,
   "midpoint_distance_m": 280.5,
   "start_elevation_m": 527.1294830142632,
   "end_elevation_m": 528.2891118025453,
   "start_xy": [
    806370.3397337076,
    6519527.5954868905
   ],
   "end_xy": [
    806369.0414615814,
    6519522.7669788925
   ]
  },
  "max_10m": {
   "gradient_pct": 21.506685294922363,
   "start_distance_m": 273.0,
   "end_distance_m": 283.0,
   "midpoint_distance_m": 278.0,
   "start_elevation_m": 526.1384432730531,
   "end_elevation_m": 528.2891118025453,
   "start_xy": [
    806371.6380058338,
    6519532.423994889
   ],
   "end_xy": [
    806369.0414615814,
    6519522.7669788925
   ]
  },
  "max_20m": {
   "gradient_pct": 20.68770830019787,
   "start_distance_m": 263.0,
   "end_distance_m": 283.0,
   "midpoint_distance_m": 273.0,
   "start_elevation_m": 524.1515701425058,
   "end_elevation_m": 528.2891118025453,
   "start_xy": [
    806374.2345500863,
    6519542.081010884
   ],
   "end_xy": [
    806369.0414615814,
    6519522.7669788925
   ]
  },
  "max_25m": {
   "gradient_pct": 20.184982125527767,
   "start_distance_m": 258.0,
   "end_distance_m": 283.0,
   "midpoint_distance_m": 270.5,
   "start_elevation_m": 523.2428662711634,
   "end_elevation_m": 528.2891118025453,
   "start_xy": [
    806375.5328222126,
    6519546.909518882
   ],
   "end_xy": [
    806369.0414615814,
    6519522.7669788925
   ]
  },
  "max_50m": {
   "gradient_pct": 19.52119721941108,
   "start_distance_m": 257.0,
   "end_distance_m": 307.0,
   "midpoint_distance_m": 282.0,
   "start_elevation_m": 523.0634093826937,
   "end_elevation_m": 532.8240079923993,
   "start_xy": [
    806375.7924766378,
    6519547.875220481
   ],
   "end_xy": [
    806361.907874954,
    6519499.969303889
   ]
  },
  "max_100m": {
   "gradient_pct": 17.012346592774065,
   "start_distance_m": 234.0,
   "end_distance_m": 334.0,
   "midpoint_distance_m": 284.0,
   "start_elevation_m": 519.816208112796,
   "end_elevation_m": 536.82855470557,
   "start_xy": [
    806383.9990115685,
    6519569.294909022
   ],
   "end_xy": [
    806345.9833925909,
    6519478.192872488
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.319599715368895,
   "start_distance_m": 1377.0,
   "end_distance_m": 1382.0,
   "midpoint_distance_m": 1379.5,
   "start_elevation_m": 613.8467767559728,
   "end_elevation_m": 613.4307967702043,
   "start_xy": [
    806814.2540792977,
    6519145.986014367
   ],
   "end_xy": [
    806817.0966602998,
    6519150.080116848
   ]
  },
  "min_10m": {
   "gradient_pct": -7.955103550007152,
   "start_distance_m": 1374.0,
   "end_distance_m": 1384.0,
   "midpoint_distance_m": 1379.0,
   "start_elevation_m": 614.0728998961304,
   "end_elevation_m": 613.2773895411297,
   "start_xy": [
    806812.3266631159,
    6519143.687087038
   ],
   "end_xy": [
    806818.1200236129,
    6519151.798467083
   ]
  },
  "min_20m": {
   "gradient_pct": -7.627557701706564,
   "start_distance_m": 1373.0,
   "end_distance_m": 1393.0,
   "midpoint_distance_m": 1383.0,
   "start_elevation_m": 614.155747225141,
   "end_elevation_m": 612.6302356847997,
   "start_xy": [
    806811.6841910552,
    6519142.920777928
   ],
   "end_xy": [
    806822.7251585214,
    6519159.531043139
   ]
  },
  "min_25m": {
   "gradient_pct": -7.207587924548534,
   "start_distance_m": 1371.0,
   "end_distance_m": 1396.0,
   "midpoint_distance_m": 1383.5,
   "start_elevation_m": 614.269846323102,
   "end_elevation_m": 612.4679493419649,
   "start_xy": [
    806810.3992469341,
    6519141.388159709
   ],
   "end_xy": [
    806824.260203491,
    6519162.108568492
   ]
  },
  "min_50m": {
   "gradient_pct": -5.190232000502874,
   "start_distance_m": 1366.0,
   "end_distance_m": 1416.0,
   "midpoint_distance_m": 1391.0,
   "start_elevation_m": 614.4651176380512,
   "end_elevation_m": 611.8700016377998,
   "start_xy": [
    806807.1868866312,
    6519137.5566141615
   ],
   "end_xy": [
    806834.4938366213,
    6519179.2920708405
   ]
  },
  "min_100m": {
   "gradient_pct": -3.1326902483792765,
   "start_distance_m": 1357.0,
   "end_distance_m": 1457.0,
   "midpoint_distance_m": 1407.0,
   "start_elevation_m": 614.4609707774603,
   "end_elevation_m": 611.328280529081,
   "start_xy": [
    806801.404638086,
    6519130.659832176
   ],
   "end_xy": [
    806857.3834941556,
    6519213.283702282
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.020492803488196,
   "start_distance_m": 281.0,
   "end_distance_m": 283.0,
   "midpoint_distance_m": 282.0,
   "start_elevation_m": 527.7087019464756,
   "end_elevation_m": 528.2891118025453,
   "start_xy": [
    806369.5607704319,
    6519524.698382092
   ],
   "end_xy": [
    806369.0414615814,
    6519522.7669788925
   ]
  },
  "max_3m": {
   "gradient_pct": 25.845610991041212,
   "start_distance_m": 280.0,
   "end_distance_m": 283.0,
   "midpoint_distance_m": 281.5,
   "start_elevation_m": 527.5137434728141,
   "end_elevation_m": 528.2891118025453,
   "start_xy": [
    806369.8204248571,
    6519525.664083691
   ],
   "end_xy": [
    806369.0414615814,
    6519522.7669788925
   ]
  }
 },
 "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": 0.024,
   "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": 0.151,
   "obstruction_max_height_m": 24.38,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    43.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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_E806-N6518_0m5@22LHD4NL-2025-08-06.tif",
   "data/cache/fr/ign-lidarhd_dtm_E806-N6519_0m5@22LHD4NL-2025-08-06.tif",
   "data/cache/fr/ign-lidarhd_dtm_E807-N6519_0m5@22LHD4NL-2025-08-06.tif"
  ],
  "calculated_at": "2026-09-22T15:49:57+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": [
   "E806-N6518",
   "E806-N6519",
   "E807-N6519"
  ],
  "elevation_blocks": [
   "22LHD4NL@2025-08-06"
  ],
  "ign_dalles": [
   "LHD_FXX_0806_6519_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0806_6520_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0807_6520_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD4NL"
  ],
  "ign_editions": [
   "2025-08-06"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0806_6519_MNT_O_0M50_LAMB93_IGN69": "2025-08-06",
   "LHD_FXX_0806_6520_MNT_O_0M50_LAMB93_IGN69": "2025-08-06",
   "LHD_FXX_0807_6520_MNT_O_0M50_LAMB93_IGN69": "2025-08-06"
  },
  "route_summit_trim_m": 300.2,
  "route_summit_trim_loss_m": 14.9,
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "structure_mask_ranges_m": [
   [
    0.0,
    8.9
   ]
  ],
  "mask_basin_extension_m": 30.0,
  "carriageway": {
   "stations": 81,
   "stations_resolved": 81,
   "width_median_m": 5.25,
   "width_p10_m": 3.5,
   "width_min_m": 1.0,
   "width_max_m": 10.75,
   "bounded_share": 0.346,
   "unbounded_share": 0.654,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.25,
   "window_m": [
    258.0,
    283.0
   ],
   "width_at_max25_m": 3.5,
   "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": 81,
    "stations_resolved": 81,
    "width_median_m": 8.0,
    "width_p10_m": 2.75,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.617,
    "unbounded_share": 0.383,
    "confidence_median": 1.0,
    "width_median_bounded_m": 5.75,
    "window_m": [
     258.0,
     283.0
    ],
    "width_at_max25_m": 3.0,
    "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": "Chambost-Longessaigne",
  "county": "Rh\u00f4ne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}