{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (45.4894, 1.9203)",
 "slug": "discovered-lane-45-4894-1-9203",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.358262400769945,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 204.0,
   "end_distance_m": 206.0,
   "start_elevation_m": 588.1785758554025,
   "end_elevation_m": 589.1057411034179,
   "min_gradient_pct": -29.054416505709924,
   "suppressed_max_gradient_pct": 71.3546614323036,
   "suppressed_location_m": [
    0.0,
    2.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 41.91582996743364,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 204.0,
   "end_distance_m": 207.0,
   "start_elevation_m": 588.1785758554025,
   "end_elevation_m": 589.4360507544255,
   "min_gradient_pct": -19.627834581653286,
   "suppressed_max_gradient_pct": 63.451457405581856,
   "suppressed_location_m": [
    197.0,
    200.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.49529951975228,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 287.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 602.5217984497423,
   "end_elevation_m": 604.1965634257299,
   "min_gradient_pct": -15.169139733363863,
   "suppressed_max_gradient_pct": 58.81694930541698,
   "suppressed_location_m": [
    195.0,
    200.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.510701060800784,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 282.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 601.4454933196498,
   "end_elevation_m": 604.1965634257299,
   "min_gradient_pct": -7.739059650278932,
   "suppressed_max_gradient_pct": 47.2389002927946,
   "suppressed_location_m": [
    190.0,
    200.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.389721123819527,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 272.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 599.518619200966,
   "end_elevation_m": 604.1965634257299,
   "min_gradient_pct": -6.268321631321214,
   "suppressed_max_gradient_pct": 34.708890591889485,
   "suppressed_location_m": [
    180.0,
    200.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.849538960896098,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 267.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 598.4841786855059,
   "end_elevation_m": 604.1965634257299,
   "min_gradient_pct": -5.368497608736561,
   "suppressed_max_gradient_pct": 31.144546345198705,
   "suppressed_location_m": [
    175.0,
    200.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.180103635343585,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 248.0,
   "end_distance_m": 298.0,
   "start_elevation_m": 595.1026473804053,
   "end_elevation_m": 605.1926991980771,
   "min_gradient_pct": -2.6378503152768644,
   "suppressed_max_gradient_pct": 22.07223854279414,
   "suppressed_location_m": [
    181.0,
    231.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.171453302815053,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 218.0,
   "end_distance_m": 318.0,
   "start_elevation_m": 589.5059260541786,
   "end_elevation_m": 607.6773793569937,
   "min_gradient_pct": 1.9884093701733718,
   "suppressed_max_gradient_pct": 20.05285314599996,
   "suppressed_location_m": [
    189.0,
    289.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.413,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 93.0,
  "shape_class": "sustained"
 },
 "length_m": 406.38736696328044,
 "start_elevation_m": 570.9150601806874,
 "end_elevation_m": 620.6403409308851,
 "endpoint_gain_m": 49.725280750197726,
 "overall_gradient_pct": 12.23593172242746,
 "accumulated_ascent_m": 52.73560146128693,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.49529951975228,
   "start_distance_m": 287.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 289.5,
   "start_elevation_m": 602.5217984497423,
   "end_elevation_m": 604.1965634257299,
   "start_xy": [
    615731.7129665177,
    6488274.047444238
   ],
   "end_xy": [
    615736.6742469342,
    6488273.634564509
   ]
  },
  "max_10m": {
   "gradient_pct": 27.510701060800784,
   "start_distance_m": 282.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 287.0,
   "start_elevation_m": 601.4454933196498,
   "end_elevation_m": 604.1965634257299,
   "start_xy": [
    615727.2789624339,
    6488276.358203374
   ],
   "end_xy": [
    615736.6742469342,
    6488273.634564509
   ]
  },
  "max_20m": {
   "gradient_pct": 23.389721123819527,
   "start_distance_m": 272.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 282.0,
   "start_elevation_m": 599.518619200966,
   "end_elevation_m": 604.1965634257299,
   "start_xy": [
    615718.4109542664,
    6488280.979721647
   ],
   "end_xy": [
    615736.6742469342,
    6488273.634564509
   ]
  },
  "max_25m": {
   "gradient_pct": 22.849538960896098,
   "start_distance_m": 267.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 279.5,
   "start_elevation_m": 598.4841786855059,
   "end_elevation_m": 604.1965634257299,
   "start_xy": [
    615713.9769501827,
    6488283.290480782
   ],
   "end_xy": [
    615736.6742469342,
    6488273.634564509
   ]
  },
  "max_50m": {
   "gradient_pct": 20.180103635343585,
   "start_distance_m": 248.0,
   "end_distance_m": 298.0,
   "midpoint_distance_m": 273.0,
   "start_elevation_m": 595.1026473804053,
   "end_elevation_m": 605.1926991980771,
   "start_xy": [
    615698.8258818896,
    6488294.740805493
   ],
   "end_xy": [
    615742.6628819058,
    6488273.265442338
   ]
  },
  "max_100m": {
   "gradient_pct": 18.171453302815053,
   "start_distance_m": 218.0,
   "end_distance_m": 318.0,
   "midpoint_distance_m": 268.0,
   "start_elevation_m": 589.5059260541786,
   "end_elevation_m": 607.6773793569937,
   "start_xy": [
    615678.4565146196,
    6488316.453053589
   ],
   "end_xy": [
    615762.4864069792,
    6488275.253104621
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -15.169139733363863,
   "start_distance_m": 211.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 213.5,
   "start_elevation_m": 589.9745661987979,
   "end_elevation_m": 589.2161092121297,
   "start_xy": [
    615678.1754592794,
    6488323.44740902
   ],
   "end_xy": [
    615678.3762130939,
    6488318.451440855
   ]
  },
  "min_10m": {
   "gradient_pct": -7.739059650278932,
   "start_distance_m": 37.0,
   "end_distance_m": 47.0,
   "midpoint_distance_m": 42.0,
   "start_elevation_m": 575.0015428392637,
   "end_elevation_m": 574.2276368742358,
   "start_xy": [
    615537.7057976198,
    6488387.943441313
   ],
   "end_xy": [
    615546.581337658,
    6488385.718418785
   ]
  },
  "min_20m": {
   "gradient_pct": -6.268321631321214,
   "start_distance_m": 37.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 47.0,
   "start_elevation_m": 575.0015428392637,
   "end_elevation_m": 573.7478785129995,
   "start_xy": [
    615537.7057976198,
    6488387.943441313
   ],
   "end_xy": [
    615556.2021108319,
    6488383.216840836
   ]
  },
  "min_25m": {
   "gradient_pct": -5.368497608736561,
   "start_distance_m": 36.0,
   "end_distance_m": 61.0,
   "midpoint_distance_m": 48.5,
   "start_elevation_m": 575.0134734506452,
   "end_elevation_m": 573.671349048461,
   "start_xy": [
    615536.7269191986,
    6488387.738998077
   ],
   "end_xy": [
    615560.1031924561,
    6488382.332780792
   ]
  },
  "min_50m": {
   "gradient_pct": -2.6378503152768644,
   "start_distance_m": 34.0,
   "end_distance_m": 84.0,
   "midpoint_distance_m": 59.0,
   "start_elevation_m": 574.9861057417921,
   "end_elevation_m": 573.6671805841537,
   "start_xy": [
    615534.7691623563,
    6488387.330111606
   ],
   "end_xy": [
    615582.1671373317,
    6488376.09557185
   ]
  },
  "min_100m": {
   "gradient_pct": 1.9884093701733718,
   "start_distance_m": 31.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 81.0,
   "start_elevation_m": 574.9107641088807,
   "end_elevation_m": 576.8991734790541,
   "start_xy": [
    615531.984352769,
    6488386.595319994
   ],
   "end_xy": [
    615622.8723225312,
    6488355.064589328
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.358262400769945,
   "start_distance_m": 204.0,
   "end_distance_m": 206.0,
   "midpoint_distance_m": 205.0,
   "start_elevation_m": 588.1785758554025,
   "end_elevation_m": 589.1057411034179,
   "start_xy": [
    615677.8944039394,
    6488330.441764451
   ],
   "end_xy": [
    615677.9747054651,
    6488328.443377185
   ]
  },
  "max_3m": {
   "gradient_pct": 41.91582996743364,
   "start_distance_m": 204.0,
   "end_distance_m": 207.0,
   "midpoint_distance_m": 205.5,
   "start_elevation_m": 588.1785758554025,
   "end_elevation_m": 589.4360507544255,
   "start_xy": [
    615677.8944039394,
    6488330.441764451
   ],
   "end_xy": [
    615678.014856228,
    6488327.444183552
   ]
  }
 },
 "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": 0.088,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.108,
   "windows_resited": [
    5.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 186.0,
     "end_m": 191.0,
     "raw_pct": 33.76,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.365,
   "obstruction_max_height_m": 28.76,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    24.0
   ],
   [
    184.0,
    202.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_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-mc2",
   "road_pbf": "block-batch-fr-mc2.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_E615-N6488_0m5@22LHD3JL-2025-06-30.tif"
  ],
  "calculated_at": "2026-09-22T15:15:21+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc2",
  "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": [
   "E615-N6488"
  ],
  "elevation_blocks": [
   "22LHD3JL@2025-06-30"
  ],
  "ign_dalles": [
   "LHD_FXX_0615_6489_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD3JL"
  ],
  "ign_editions": [
   "2025-06-30"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0615_6489_MNT_O_0M50_LAMB93_IGN69": "2025-06-30"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 2,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "mask_basin_extension_m": 4.0,
  "carriageway": {
   "stations": 23,
   "stations_resolved": 23,
   "width_median_m": 4.5,
   "width_p10_m": 1.7,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.304,
   "unbounded_share": 0.696,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.5,
   "window_m": [
    267.0,
    292.0
   ],
   "width_at_max25_m": 3.75,
   "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": 23,
    "stations_resolved": 23,
    "width_median_m": 4.25,
    "width_p10_m": 2.35,
    "width_min_m": 1.0,
    "width_max_m": 11.25,
    "bounded_share": 0.87,
    "unbounded_share": 0.13,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.0,
    "window_m": [
     267.0,
     292.0
    ],
    "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": "Grandsaigne",
  "county": "Corr\u00e8ze",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}