{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.1082, 1.2293)",
 "slug": "discovered-lane-43-1082-1-2293",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 42.50232533292433,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 833.0,
   "end_distance_m": 835.0,
   "start_elevation_m": 437.1942101216388,
   "end_elevation_m": 438.04425662829726,
   "min_gradient_pct": -15.0050458078141,
   "suppressed_max_gradient_pct": 48.9376857853415,
   "suppressed_location_m": [
    823.0,
    825.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 31.197320410090395,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 832.0,
   "end_distance_m": 835.0,
   "start_elevation_m": 437.10833701599455,
   "end_elevation_m": 438.04425662829726,
   "min_gradient_pct": -14.25671335990728,
   "suppressed_max_gradient_pct": 39.214050481859886,
   "suppressed_location_m": [
    823.0,
    826.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.447808621420563,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 392.0,
   "end_distance_m": 397.0,
   "start_elevation_m": 387.5606789865982,
   "end_elevation_m": 388.6330694176692,
   "min_gradient_pct": -9.079603726255527,
   "suppressed_max_gradient_pct": 27.522798250423648,
   "suppressed_location_m": [
    823.0,
    828.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.950718535954138,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 392.0,
   "end_distance_m": 402.0,
   "start_elevation_m": 387.5606789865982,
   "end_elevation_m": 389.6557508401936,
   "min_gradient_pct": 2.3614926580614792
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.328714987410308,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 387.0,
   "end_distance_m": 407.0,
   "start_elevation_m": 386.58969744116837,
   "end_elevation_m": 390.65544043865043,
   "min_gradient_pct": 2.5562234278646656
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.076352462112254,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 386.0,
   "end_distance_m": 411.0,
   "start_elevation_m": 386.3929749188737,
   "end_elevation_m": 391.41206303440174,
   "min_gradient_pct": 2.668694140881371
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.597534071543805,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 370.0,
   "end_distance_m": 420.0,
   "start_elevation_m": 383.54845722784694,
   "end_elevation_m": 392.84722426361884,
   "min_gradient_pct": 3.274339574420196
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.85997626521288,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 321.0,
   "end_distance_m": 421.0,
   "start_elevation_m": 376.1649157974246,
   "end_elevation_m": 393.0248920626375,
   "min_gradient_pct": 3.903646440219177
  }
 ],
 "shape": {
  "ascent_concentration": 0.305,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 227.0,
  "shape_class": "sustained"
 },
 "length_m": 843.3999999999694,
 "start_elevation_m": 331.16485933449144,
 "end_elevation_m": 437.64625585258256,
 "endpoint_gain_m": 106.48139651809112,
 "overall_gradient_pct": 12.625254507718163,
 "accumulated_ascent_m": 107.08442748779078,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.447808621420563,
   "start_distance_m": 392.0,
   "end_distance_m": 397.0,
   "midpoint_distance_m": 394.5,
   "start_elevation_m": 387.5606789865982,
   "end_elevation_m": 388.6330694176692,
   "start_xy": [
    555894.3179262165,
    6224621.167698802
   ],
   "end_xy": [
    555890.8736392363,
    6224624.792183207
   ]
  },
  "max_10m": {
   "gradient_pct": 20.950718535954138,
   "start_distance_m": 392.0,
   "end_distance_m": 402.0,
   "midpoint_distance_m": 397.0,
   "start_elevation_m": 387.5606789865982,
   "end_elevation_m": 389.6557508401936,
   "start_xy": [
    555894.3179262165,
    6224621.167698802
   ],
   "end_xy": [
    555887.6408693999,
    6224628.584698691
   ]
  },
  "max_20m": {
   "gradient_pct": 20.328714987410308,
   "start_distance_m": 387.0,
   "end_distance_m": 407.0,
   "midpoint_distance_m": 397.0,
   "start_elevation_m": 386.58969744116837,
   "end_elevation_m": 390.65544043865043,
   "start_xy": [
    555897.7622131967,
    6224617.543214398
   ],
   "end_xy": [
    555884.889329348,
    6224632.759507351
   ]
  },
  "max_25m": {
   "gradient_pct": 20.076352462112254,
   "start_distance_m": 386.0,
   "end_distance_m": 411.0,
   "midpoint_distance_m": 398.5,
   "start_elevation_m": 386.3929749188737,
   "end_elevation_m": 391.41206303440174,
   "start_xy": [
    555898.4510705927,
    6224616.818317517
   ],
   "end_xy": [
    555882.6880973065,
    6224636.099354278
   ]
  },
  "max_50m": {
   "gradient_pct": 18.597534071543805,
   "start_distance_m": 370.0,
   "end_distance_m": 420.0,
   "midpoint_distance_m": 395.0,
   "start_elevation_m": 383.54845722784694,
   "end_elevation_m": 392.84722426361884,
   "start_xy": [
    555909.4727889292,
    6224605.219967423
   ],
   "end_xy": [
    555879.6282822955,
    6224644.518607615
   ]
  },
  "max_100m": {
   "gradient_pct": 16.85997626521288,
   "start_distance_m": 321.0,
   "end_distance_m": 421.0,
   "midpoint_distance_m": 371.0,
   "start_elevation_m": 376.1649157974246,
   "end_elevation_m": 393.0248920626375,
   "start_xy": [
    555944.7198129667,
    6224571.62054364
   ],
   "end_xy": [
    555879.3243184705,
    6224645.471291189
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -9.079603726255527,
   "start_distance_m": 836.0,
   "end_distance_m": 841.0,
   "midpoint_distance_m": 838.5,
   "start_elevation_m": 438.0061883184729,
   "end_elevation_m": 437.5522081321601,
   "start_xy": [
    555706.1186521606,
    6224962.7566327
   ],
   "end_xy": [
    555701.8321368572,
    6224961.248533421
   ]
  },
  "min_10m": {
   "gradient_pct": 2.3614926580614792,
   "start_distance_m": 449.0,
   "end_distance_m": 459.0,
   "midpoint_distance_m": 454.0,
   "start_elevation_m": 395.08065990927577,
   "end_elevation_m": 395.3168091750819,
   "start_xy": [
    555873.2937031669,
    6224672.74500041
   ],
   "end_xy": [
    555870.1666998204,
    6224682.243518719
   ]
  },
  "min_20m": {
   "gradient_pct": 2.5562234278646656,
   "start_distance_m": 449.0,
   "end_distance_m": 469.0,
   "midpoint_distance_m": 459.0,
   "start_elevation_m": 395.08065990927577,
   "end_elevation_m": 395.5919045948487,
   "start_xy": [
    555873.2937031669,
    6224672.74500041
   ],
   "end_xy": [
    555866.8819902744,
    6224691.684518635
   ]
  },
  "min_25m": {
   "gradient_pct": 2.668694140881371,
   "start_distance_m": 449.0,
   "end_distance_m": 474.0,
   "midpoint_distance_m": 461.5,
   "start_elevation_m": 395.08065990927577,
   "end_elevation_m": 395.7478334444961,
   "start_xy": [
    555873.2937031669,
    6224672.74500041
   ],
   "end_xy": [
    555865.0208031526,
    6224696.325206353
   ]
  },
  "min_50m": {
   "gradient_pct": 3.274339574420196,
   "start_distance_m": 438.0,
   "end_distance_m": 488.0,
   "midpoint_distance_m": 463.0,
   "start_elevation_m": 394.7086267777761,
   "end_elevation_m": 396.3457965649862,
   "start_xy": [
    555876.2390348152,
    6224662.173854827
   ],
   "end_xy": [
    555859.8094792116,
    6224709.319131965
   ]
  },
  "min_100m": {
   "gradient_pct": 3.903646440219177,
   "start_distance_m": 438.0,
   "end_distance_m": 538.0,
   "midpoint_distance_m": 488.0,
   "start_elevation_m": 394.7086267777761,
   "end_elevation_m": 398.61227321799527,
   "start_xy": [
    555876.2390348152,
    6224662.173854827
   ],
   "end_xy": [
    555836.8479261262,
    6224753.4444154855
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 42.50232533292433,
   "start_distance_m": 833.0,
   "end_distance_m": 835.0,
   "midpoint_distance_m": 834.0,
   "start_elevation_m": 437.1942101216388,
   "end_elevation_m": 438.04425662829726,
   "start_xy": [
    555707.1739527757,
    6224965.458612281
   ],
   "end_xy": [
    555706.6702624328,
    6224963.523077202
   ]
  },
  "max_3m": {
   "gradient_pct": 31.197320410090395,
   "start_distance_m": 832.0,
   "end_distance_m": 835.0,
   "midpoint_distance_m": 833.5,
   "start_elevation_m": 437.10833701599455,
   "end_elevation_m": 438.04425662829726,
   "start_xy": [
    555707.4257979471,
    6224966.426379819
   ],
   "end_xy": [
    555706.6702624328,
    6224963.523077202
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.012,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 823.0,
     "end_m": 828.0,
     "raw_pct": 27.52,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.449,
   "obstruction_max_height_m": 19.99,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    821.0,
    830.0
   ]
  ],
  "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_E555-N6224_0m5@22LHD1IR-2025-03-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E556-N6224_0m5@22LHD1IR-2025-03-20.tif"
  ],
  "calculated_at": "2026-09-20T09:45:17+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": [
   "E555-N6224",
   "E556-N6224"
  ],
  "elevation_blocks": [
   "22LHD1IR@2025-03-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0555_6225_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0556_6225_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD1IR"
  ],
  "ign_editions": [
   "2025-03-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0555_6225_MNT_O_0M50_LAMB93_IGN69": "2025-03-20",
   "LHD_FXX_0556_6225_MNT_O_0M50_LAMB93_IGN69": "2025-03-20"
  },
  "route_cut_m": 843.4,
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 40,
   "stations_resolved": 40,
   "width_median_m": 5.5,
   "width_p10_m": 3.75,
   "width_min_m": 2.0,
   "width_max_m": 10.75,
   "bounded_share": 0.225,
   "unbounded_share": 0.775,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.25,
   "window_m": [
    386.0,
    411.0
   ],
   "width_at_max25_m": 7.0,
   "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": 40,
    "stations_resolved": 40,
    "width_median_m": 3.12,
    "width_p10_m": 0.5,
    "width_min_m": 0.5,
    "width_max_m": 11.0,
    "bounded_share": 0.925,
    "unbounded_share": 0.075,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.5,
    "window_m": [
     386.0,
     411.0
    ],
    "width_at_max25_m": 3.25,
    "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": "Montbrun-Bocage",
  "county": "Haute-Garonne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}