{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.0344, 1.5985)",
 "slug": "discovered-lane-43-0344-1-5985",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.267302024654555,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 125.0,
   "end_distance_m": 127.0,
   "start_elevation_m": 365.35177126798726,
   "end_elevation_m": 366.01711730848035,
   "min_gradient_pct": -7.158130167221088
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.082382907953768,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 125.0,
   "end_distance_m": 128.0,
   "start_elevation_m": 365.35177126798726,
   "end_elevation_m": 366.2242427552259,
   "min_gradient_pct": -6.839906733481864
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.033803117479692,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 122.0,
   "end_distance_m": 127.0,
   "start_elevation_m": 364.71542715260637,
   "end_elevation_m": 366.01711730848035,
   "min_gradient_pct": -4.02464494820947
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.381006833502283,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 120.0,
   "end_distance_m": 130.0,
   "start_elevation_m": 364.20796553449196,
   "end_elevation_m": 366.6460662178422,
   "min_gradient_pct": 0.14002683973103558
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.29950077949752,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 112.0,
   "end_distance_m": 132.0,
   "start_elevation_m": 362.6781755966606,
   "end_elevation_m": 367.1380757525601,
   "min_gradient_pct": 1.067752747889017
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.375397406495267,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 109.0,
   "end_distance_m": 134.0,
   "start_elevation_m": 362.1374930215873,
   "end_elevation_m": 367.48134237321113,
   "min_gradient_pct": 1.0257983401204456
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.457028467179498,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 84.0,
   "end_distance_m": 134.0,
   "start_elevation_m": 357.7528281396214,
   "end_elevation_m": 367.48134237321113,
   "min_gradient_pct": 2.8588864399004024
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.501482936212767,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 84.0,
   "end_distance_m": 184.0,
   "start_elevation_m": 357.7528281396214,
   "end_elevation_m": 375.25431107583415,
   "min_gradient_pct": 5.448633624099557
  }
 ],
 "shape": {
  "ascent_concentration": 0.332,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 150.0,
  "shape_class": "sustained"
 },
 "length_m": 416.54564737350984,
 "start_elevation_m": 345.81804757034394,
 "end_elevation_m": 400.22158196430416,
 "endpoint_gain_m": 54.40353439396023,
 "overall_gradient_pct": 13.060641669645738,
 "accumulated_ascent_m": 54.92371692093326,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.033803117479692,
   "start_distance_m": 122.0,
   "end_distance_m": 127.0,
   "midpoint_distance_m": 124.5,
   "start_elevation_m": 364.71542715260637,
   "end_elevation_m": 366.01711730848035,
   "start_xy": [
    585722.9432371836,
    6215891.025861662
   ],
   "end_xy": [
    585719.0015223385,
    6215894.102041774
   ]
  },
  "max_10m": {
   "gradient_pct": 24.381006833502283,
   "start_distance_m": 120.0,
   "end_distance_m": 130.0,
   "midpoint_distance_m": 125.0,
   "start_elevation_m": 364.20796553449196,
   "end_elevation_m": 366.6460662178422,
   "start_xy": [
    585724.5199231217,
    6215889.795389618
   ],
   "end_xy": [
    585716.6364934314,
    6215895.947749841
   ]
  },
  "max_20m": {
   "gradient_pct": 22.29950077949752,
   "start_distance_m": 112.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 122.0,
   "start_elevation_m": 362.6781755966606,
   "end_elevation_m": 367.1380757525601,
   "start_xy": [
    585730.826666874,
    6215884.873501439
   ],
   "end_xy": [
    585715.0598074934,
    6215897.178221886
   ]
  },
  "max_25m": {
   "gradient_pct": 21.375397406495267,
   "start_distance_m": 109.0,
   "end_distance_m": 134.0,
   "midpoint_distance_m": 121.5,
   "start_elevation_m": 362.1374930215873,
   "end_elevation_m": 367.48134237321113,
   "start_xy": [
    585733.1916957811,
    6215883.027793372
   ],
   "end_xy": [
    585713.4831215552,
    6215898.40869393
   ]
  },
  "max_50m": {
   "gradient_pct": 19.457028467179498,
   "start_distance_m": 84.0,
   "end_distance_m": 134.0,
   "midpoint_distance_m": 109.0,
   "start_elevation_m": 357.7528281396214,
   "end_elevation_m": 367.48134237321113,
   "start_xy": [
    585742.9144397352,
    6215860.915858356
   ],
   "end_xy": [
    585713.4831215552,
    6215898.40869393
   ]
  },
  "max_100m": {
   "gradient_pct": 17.501482936212767,
   "start_distance_m": 84.0,
   "end_distance_m": 184.0,
   "midpoint_distance_m": 134.0,
   "start_elevation_m": 357.7528281396214,
   "end_elevation_m": 375.25431107583415,
   "start_xy": [
    585742.9144397352,
    6215860.915858356
   ],
   "end_xy": [
    585678.9174609882,
    6215934.309431661
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.02464494820947,
   "start_distance_m": 343.0,
   "end_distance_m": 348.0,
   "midpoint_distance_m": 345.5,
   "start_elevation_m": 391.35693305930715,
   "end_elevation_m": 391.1557008118967,
   "start_xy": [
    585629.9046374575,
    6216024.048068058
   ],
   "end_xy": [
    585625.5859569233,
    6216021.660133426
   ]
  },
  "min_10m": {
   "gradient_pct": 0.14002683973103558,
   "start_distance_m": 300.0,
   "end_distance_m": 310.0,
   "midpoint_distance_m": 305.0,
   "start_elevation_m": 389.61064912340504,
   "end_elevation_m": 389.62465180737814,
   "start_xy": [
    585672.6316017377,
    6216028.22092014
   ],
   "end_xy": [
    585662.6605758257,
    6216027.460234749
   ]
  },
  "min_20m": {
   "gradient_pct": 1.067752747889017,
   "start_distance_m": 290.0,
   "end_distance_m": 310.0,
   "midpoint_distance_m": 300.0,
   "start_elevation_m": 389.41110125780034,
   "end_elevation_m": 389.62465180737814,
   "start_xy": [
    585682.6200743073,
    6216028.111036696
   ],
   "end_xy": [
    585662.6605758257,
    6216027.460234749
   ]
  },
  "min_25m": {
   "gradient_pct": 1.0257983401204456,
   "start_distance_m": 286.0,
   "end_distance_m": 311.0,
   "midpoint_distance_m": 298.5,
   "start_elevation_m": 389.4234387724046,
   "end_elevation_m": 389.6798883574347,
   "start_xy": [
    585686.6174730185,
    6216027.966802358
   ],
   "end_xy": [
    585661.6634732345,
    6216027.38416621
   ]
  },
  "min_50m": {
   "gradient_pct": 2.8588864399004024,
   "start_distance_m": 286.0,
   "end_distance_m": 336.0,
   "midpoint_distance_m": 311.0,
   "start_elevation_m": 389.4234387724046,
   "end_elevation_m": 390.8528819923548,
   "start_xy": [
    585686.6174730185,
    6216027.966802358
   ],
   "end_xy": [
    585636.7643052143,
    6216025.192225841
   ]
  },
  "min_100m": {
   "gradient_pct": 5.448633624099557,
   "start_distance_m": 273.0,
   "end_distance_m": 373.0,
   "midpoint_distance_m": 323.0,
   "start_elevation_m": 387.71146568636664,
   "end_elevation_m": 393.1600993104662,
   "start_xy": [
    585689.1951203209,
    6216017.013190733
   ],
   "end_xy": [
    585611.4677269806,
    6216001.0326635055
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.267302024654555,
   "start_distance_m": 125.0,
   "end_distance_m": 127.0,
   "midpoint_distance_m": 126.0,
   "start_elevation_m": 365.35177126798726,
   "end_elevation_m": 366.01711730848035,
   "start_xy": [
    585720.5782082765,
    6215892.871569729
   ],
   "end_xy": [
    585719.0015223385,
    6215894.102041774
   ]
  },
  "max_3m": {
   "gradient_pct": 29.082382907953768,
   "start_distance_m": 125.0,
   "end_distance_m": 128.0,
   "midpoint_distance_m": 126.5,
   "start_elevation_m": 365.35177126798726,
   "end_elevation_m": 366.2242427552259,
   "start_xy": [
    585720.5782082765,
    6215892.871569729
   ],
   "end_xy": [
    585718.2131793695,
    6215894.717277796
   ]
  }
 },
 "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": 0.675,
   "obstruction_max_height_m": 21.25,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "937d2a005af5491e462567d7f33ab563f033918b",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:0048c2bbb24ab95e",
   "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-pyr3",
   "road_pbf": "block-batch-fr-pyr3.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": "sha256:79dd257545ed11dc"
  },
  "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_E585-N6215_0m5@22LHD1IR-2025-03-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E585-N6216_0m5@22LHD1IR-2025-03-20.tif"
  ],
  "calculated_at": "2026-09-20T08:39:54+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr3",
  "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": [
   "E585-N6215",
   "E585-N6216"
  ],
  "elevation_blocks": [
   "22LHD1IR@2025-03-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0585_6216_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0585_6217_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD1IR"
  ],
  "ign_editions": [
   "2025-03-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0585_6216_MNT_O_0M50_LAMB93_IGN69": "2025-03-20",
   "LHD_FXX_0585_6217_MNT_O_0M50_LAMB93_IGN69": "2025-03-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 23,
   "stations_resolved": 23,
   "width_median_m": 4.0,
   "width_p10_m": 1.8,
   "width_min_m": 1.25,
   "width_max_m": 12.0,
   "bounded_share": 0.304,
   "unbounded_share": 0.696,
   "confidence_median": 0.0,
   "width_median_bounded_m": 2.25,
   "window_m": [
    109.0,
    134.0
   ],
   "width_at_max25_m": 2.25,
   "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": 23,
    "stations_resolved": 23,
    "width_median_m": 2.75,
    "width_p10_m": 1.5,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.826,
    "unbounded_share": 0.174,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.5,
    "window_m": [
     109.0,
     134.0
    ],
    "width_at_max25_m": 2.5,
    "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": "Crampagna",
  "county": "Ari\u00e8ge",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}