{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (42.8953, -0.0289)",
 "slug": "discovered-lane-42-8953-0-0289",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 41.44196933311264,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1012.0,
   "end_distance_m": 1014.0,
   "start_elevation_m": 723.995864006303,
   "end_elevation_m": 724.8247033929653,
   "min_gradient_pct": -26.12707179925451,
   "suppressed_max_gradient_pct": 165.01799821647865,
   "suppressed_location_m": [
    1756.0,
    1758.0
   ],
   "suppressed_min_gradient_pct": -163.80621103862723,
   "suppressed_min_location_m": [
    1754.0,
    1756.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.76656778621433,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1011.0,
   "end_distance_m": 1014.0,
   "start_elevation_m": 723.8117063593788,
   "end_elevation_m": 724.8247033929653,
   "min_gradient_pct": -19.155429705654115,
   "suppressed_max_gradient_pct": 118.77521948325314,
   "suppressed_location_m": [
    1756.0,
    1759.0
   ],
   "suppressed_min_gradient_pct": -106.23597317509545,
   "suppressed_min_location_m": [
    1753.0,
    1756.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.662459017391484,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1369.0,
   "end_distance_m": 1374.0,
   "start_elevation_m": 753.6286659758042,
   "end_elevation_m": 754.8117889266738,
   "min_gradient_pct": -11.708693654506988,
   "suppressed_max_gradient_pct": 73.60610701465475,
   "suppressed_location_m": [
    1756.0,
    1761.0
   ],
   "suppressed_min_gradient_pct": -60.351944836866096,
   "suppressed_min_location_m": [
    1751.0,
    1756.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.81776134089091,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "no_bench_excluded_min"
   ],
   "start_distance_m": 19.0,
   "end_distance_m": 29.0,
   "start_elevation_m": 625.6380778334872,
   "end_elevation_m": 627.8198539675763,
   "min_gradient_pct": -4.985132509511914,
   "suppressed_max_gradient_pct": 45.65154785412801,
   "suppressed_location_m": [
    1260.0,
    1270.0
   ],
   "suppressed_min_gradient_pct": -26.233136002257424,
   "suppressed_min_location_m": [
    1142.0,
    1152.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.32046164611245,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "no_bench_excluded_min"
   ],
   "start_distance_m": 10.0,
   "end_distance_m": 30.0,
   "start_elevation_m": 623.9530061803299,
   "end_elevation_m": 628.0170985095524,
   "min_gradient_pct": -4.190101958147352,
   "suppressed_max_gradient_pct": 29.548213681358675,
   "suppressed_location_m": [
    1756.0,
    1776.0
   ],
   "suppressed_min_gradient_pct": -15.943248166007038,
   "suppressed_min_location_m": [
    1142.0,
    1162.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.432098192365174,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "no_bench_excluded_min",
    "texture_excluded"
   ],
   "start_distance_m": 1889.0,
   "end_distance_m": 1914.0,
   "start_elevation_m": 803.4760349711815,
   "end_elevation_m": 808.3340595192728,
   "min_gradient_pct": -3.9648898588116026,
   "suppressed_max_gradient_pct": 27.62266422799621,
   "suppressed_location_m": [
    1756.0,
    1781.0
   ],
   "suppressed_min_gradient_pct": -13.506162120395857,
   "suppressed_min_location_m": [
    1142.0,
    1167.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.490957619242636,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded_min",
    "texture_excluded"
   ],
   "start_distance_m": 1877.0,
   "end_distance_m": 1927.0,
   "start_elevation_m": 801.5241375282287,
   "end_elevation_m": 810.26961633785,
   "min_gradient_pct": -2.3296830584179133,
   "suppressed_max_gradient_pct": 20.276438844893164,
   "suppressed_location_m": [
    1756.0,
    1806.0
   ],
   "suppressed_min_gradient_pct": -6.587005668742222,
   "suppressed_min_location_m": [
    1141.0,
    1191.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.02175446839931,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded_min"
   ],
   "start_distance_m": 1870.0,
   "end_distance_m": 1970.0,
   "start_elevation_m": 800.5566519007486,
   "end_elevation_m": 816.578406369148,
   "min_gradient_pct": 1.5061103562023845,
   "suppressed_min_gradient_pct": 0.9790923027801455,
   "suppressed_min_location_m": [
    1102.0,
    1202.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.32,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 181.0,
  "shape_class": "sustained"
 },
 "length_m": 2120.880711846441,
 "start_elevation_m": 623.4013709277416,
 "end_elevation_m": 835.7208917714659,
 "endpoint_gain_m": 212.31952084372426,
 "overall_gradient_pct": 10.010912903200419,
 "accumulated_ascent_m": 229.1043379010597,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.662459017391484,
   "start_distance_m": 1369.0,
   "end_distance_m": 1374.0,
   "midpoint_distance_m": 1371.5,
   "start_elevation_m": 753.6286659758042,
   "end_elevation_m": 754.8117889266738,
   "start_xy": [
    452708.3226705311,
    6203620.061287309
   ],
   "end_xy": [
    452710.52330051106,
    6203615.571607176
   ]
  },
  "max_10m": {
   "gradient_pct": 21.81776134089091,
   "start_distance_m": 19.0,
   "end_distance_m": 29.0,
   "midpoint_distance_m": 24.0,
   "start_elevation_m": 625.6380778334872,
   "end_elevation_m": 627.8198539675763,
   "start_xy": [
    452450.2179288215,
    6204670.286372477
   ],
   "end_xy": [
    452440.6280712273,
    6204668.246022959
   ]
  },
  "max_20m": {
   "gradient_pct": 20.32046164611245,
   "start_distance_m": 10.0,
   "end_distance_m": 30.0,
   "midpoint_distance_m": 20.0,
   "start_elevation_m": 623.9530061803299,
   "end_elevation_m": 628.0170985095524,
   "start_xy": [
    452459.2012319019,
    6204670.116104846
   ],
   "end_xy": [
    452439.7130233442,
    6204667.842677733
   ]
  },
  "max_25m": {
   "gradient_pct": 19.432098192365174,
   "start_distance_m": 1889.0,
   "end_distance_m": 1914.0,
   "midpoint_distance_m": 1901.5,
   "start_elevation_m": 803.4760349711815,
   "end_elevation_m": 808.3340595192728,
   "start_xy": [
    452810.35310985736,
    6203173.958386923
   ],
   "end_xy": [
    452802.0707919157,
    6203151.525230998
   ]
  },
  "max_50m": {
   "gradient_pct": 17.490957619242636,
   "start_distance_m": 1877.0,
   "end_distance_m": 1927.0,
   "midpoint_distance_m": 1902.0,
   "start_elevation_m": 801.5241375282287,
   "end_elevation_m": 810.26961633785,
   "start_xy": [
    452814.2716052108,
    6203185.0413134545
   ],
   "end_xy": [
    452790.94074375916,
    6203144.807937792
   ]
  },
  "max_100m": {
   "gradient_pct": 16.02175446839931,
   "start_distance_m": 1870.0,
   "end_distance_m": 1970.0,
   "midpoint_distance_m": 1920.0,
   "start_elevation_m": 800.5566519007486,
   "end_elevation_m": 816.578406369148,
   "start_xy": [
    452819.10510327935,
    6203190.084175621
   ],
   "end_xy": [
    452751.6197374944,
    6203130.437123739
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.708693654506988,
   "start_distance_m": 2008.0,
   "end_distance_m": 2013.0,
   "midpoint_distance_m": 2010.5,
   "start_elevation_m": 820.8232822346665,
   "end_elevation_m": 820.2378475519412,
   "start_xy": [
    452718.84759519855,
    6203140.784373865
   ],
   "end_xy": [
    452714.6645037792,
    6203143.523305442
   ]
  },
  "min_10m": {
   "gradient_pct": -4.985132509511914,
   "start_distance_m": 917.0,
   "end_distance_m": 927.0,
   "midpoint_distance_m": 922.0,
   "start_elevation_m": 720.4275865797318,
   "end_elevation_m": 719.9290733287806,
   "start_xy": [
    452481.180210783,
    6204007.114984107
   ],
   "end_xy": [
    452485.93121397897,
    6203998.315667734
   ]
  },
  "min_20m": {
   "gradient_pct": -4.190101958147352,
   "start_distance_m": 910.0,
   "end_distance_m": 930.0,
   "midpoint_distance_m": 920.0,
   "start_elevation_m": 720.6472848424162,
   "end_elevation_m": 719.8092644507867,
   "start_xy": [
    452477.5694401051,
    6204013.091694075
   ],
   "end_xy": [
    452487.3565149377,
    6203995.675872822
   ]
  },
  "min_25m": {
   "gradient_pct": -3.9648898588116026,
   "start_distance_m": 908.0,
   "end_distance_m": 933.0,
   "midpoint_distance_m": 920.5,
   "start_elevation_m": 720.714989902651,
   "end_elevation_m": 719.7237674379481,
   "start_xy": [
    452476.366440236,
    6204014.689439772
   ],
   "end_xy": [
    452488.7818158965,
    6203993.03607791
   ]
  },
  "min_50m": {
   "gradient_pct": -2.3296830584179133,
   "start_distance_m": 900.0,
   "end_distance_m": 950.0,
   "midpoint_distance_m": 925.0,
   "start_elevation_m": 720.7678642471027,
   "end_elevation_m": 719.6030227178937,
   "start_xy": [
    452471.55444075924,
    6204021.0804225635
   ],
   "end_xy": [
    452496.6867488892,
    6203977.987032916
   ]
  },
  "min_100m": {
   "gradient_pct": 1.5061103562023845,
   "start_distance_m": 889.0,
   "end_distance_m": 989.0,
   "midpoint_distance_m": 939.0,
   "start_elevation_m": 720.284300007415,
   "end_elevation_m": 721.7904103636174,
   "start_xy": [
    452464.8444173531,
    6204029.791555722
   ],
   "end_xy": [
    452514.42087060324,
    6203943.252310705
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 41.44196933311264,
   "start_distance_m": 1012.0,
   "end_distance_m": 1014.0,
   "midpoint_distance_m": 1013.0,
   "start_elevation_m": 723.995864006303,
   "end_elevation_m": 724.8247033929653,
   "start_xy": [
    452527.6885888176,
    6203924.60583039
   ],
   "end_xy": [
    452528.9566693436,
    6203923.059230319
   ]
  },
  "max_3m": {
   "gradient_pct": 33.76656778621433,
   "start_distance_m": 1011.0,
   "end_distance_m": 1014.0,
   "midpoint_distance_m": 1012.5,
   "start_elevation_m": 723.8117063593788,
   "end_elevation_m": 724.8247033929653,
   "start_xy": [
    452527.0545485546,
    6203925.379130426
   ],
   "end_xy": [
    452528.9566693436,
    6203923.059230319
   ]
  }
 },
 "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": 0.01,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0
   ],
   "minima_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.102,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "minima_unresolved": []
  },
  "placement_suppression": {
   "masked_fraction": 0.102,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.116,
   "windows_resited": [
    25.0,
    50.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 2070.0,
     "end_m": 2095.0,
     "raw_pct": 19.54,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.234,
   "obstruction_max_height_m": 26.5,
   "flagged_windows_m": [
    2,
    3,
    5
   ]
  },
  "excluded_ranges_m": [
   [
    1070.0,
    1160.0
   ],
   [
    1200.0,
    1310.0
   ],
   [
    1749.0,
    1763.0
   ],
   [
    2068.0,
    2097.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "06fa4c370391597f015858e97dcf01ca2f5b3640",
   "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-pyr2",
   "road_pbf": "block-batch-fr-pyr2.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:c54ac68b3f57b41b"
  },
  "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_E452-N6203_0m5@21LHD1GR2-2025-04-03.tif",
   "data/cache/fr/ign-lidarhd_dtm_E452-N6204_0m5@21LHD1GR2-2025-04-03.tif"
  ],
  "calculated_at": "2026-09-20T07:05:07+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr2",
  "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": [
   "E452-N6203",
   "E452-N6204"
  ],
  "elevation_blocks": [
   "21LHD1GR2@2025-04-03"
  ],
  "ign_dalles": [
   "LHD_FXX_0452_6204_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0452_6205_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD1GR2"
  ],
  "ign_editions": [
   "2025-04-03"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0452_6204_MNT_O_0M50_LAMB93_IGN69": "2025-04-03",
   "LHD_FXX_0452_6205_MNT_O_0M50_LAMB93_IGN69": "2025-04-03"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 7,
  "carriageway": {
   "stations": 91,
   "stations_resolved": 91,
   "width_median_m": 4.75,
   "width_p10_m": 2.75,
   "width_min_m": 1.75,
   "width_max_m": 12.0,
   "bounded_share": 0.44,
   "unbounded_share": 0.56,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.75,
   "window_m": [
    1889.0,
    1914.0
   ],
   "width_at_max25_m": 5.75,
   "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": 91,
    "stations_resolved": 91,
    "width_median_m": 5.75,
    "width_p10_m": 2.25,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.846,
    "unbounded_share": 0.154,
    "confidence_median": 1.0,
    "width_median_bounded_m": 5.25,
    "window_m": [
     1889.0,
     1914.0
    ],
    "width_at_max25_m": 8.75,
    "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": "Saligos",
  "county": "Hautes-Pyr\u00e9n\u00e9es",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}