{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.1815, -0.3467)",
 "slug": "discovered-lane-43-1815-0-3467",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.198971853682565,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 12.0,
   "end_distance_m": 14.0,
   "start_elevation_m": 311.3642437478061,
   "end_elevation_m": 311.94822318487974,
   "min_gradient_pct": 0.2241224257261365
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.24440948171794,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 222.0,
   "end_distance_m": 225.0,
   "start_elevation_m": 337.3254431244169,
   "end_elevation_m": 338.14277540886843,
   "min_gradient_pct": 1.4452904813235061
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.616992146598477,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 220.0,
   "end_distance_m": 225.0,
   "start_elevation_m": 336.8119258015385,
   "end_elevation_m": 338.14277540886843,
   "min_gradient_pct": 2.4296390012477787
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.70917455599897,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 217.0,
   "end_distance_m": 227.0,
   "start_elevation_m": 336.07743284470837,
   "end_elevation_m": 338.64835030030827,
   "min_gradient_pct": 3.4987369294628934
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.039997098320498,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 209.0,
   "end_distance_m": 229.0,
   "start_elevation_m": 334.28655372381417,
   "end_elevation_m": 339.09455314347827,
   "min_gradient_pct": 4.850614315463417
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.34645711088865,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 205.0,
   "end_distance_m": 230.0,
   "start_elevation_m": 333.4465097989256,
   "end_elevation_m": 339.28312407664777,
   "min_gradient_pct": 5.3844496763458665
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.392063369691414,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 180.0,
   "end_distance_m": 230.0,
   "start_elevation_m": 329.08709239180206,
   "end_elevation_m": 339.28312407664777,
   "min_gradient_pct": 6.003163407144484
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.09567429233664,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 131.0,
   "end_distance_m": 231.0,
   "start_elevation_m": 322.33389272725844,
   "end_elevation_m": 339.4295670195951,
   "min_gradient_pct": 8.454072132569706
  }
 ],
 "shape": {
  "ascent_concentration": 0.389,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 142.0,
  "shape_class": "sustained"
 },
 "length_m": 232.62623766970765,
 "start_elevation_m": 310.0016300463876,
 "end_elevation_m": 339.514275935075,
 "endpoint_gain_m": 29.51264588868736,
 "overall_gradient_pct": 12.686722780854424,
 "accumulated_ascent_m": 29.551994568177975,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.616992146598477,
   "start_distance_m": 220.0,
   "end_distance_m": 225.0,
   "midpoint_distance_m": 222.5,
   "start_elevation_m": 336.8119258015385,
   "end_elevation_m": 338.14277540886843,
   "start_xy": [
    427598.987908633,
    6237135.823277486
   ],
   "end_xy": [
    427593.99160293886,
    6237135.631107221
   ]
  },
  "max_10m": {
   "gradient_pct": 25.70917455599897,
   "start_distance_m": 217.0,
   "end_distance_m": 227.0,
   "midpoint_distance_m": 222.0,
   "start_elevation_m": 336.07743284470837,
   "end_elevation_m": 338.64835030030827,
   "start_xy": [
    427601.98569204955,
    6237135.938579644
   ],
   "end_xy": [
    427591.99308066117,
    6237135.554239116
   ]
  },
  "max_20m": {
   "gradient_pct": 24.039997098320498,
   "start_distance_m": 209.0,
   "end_distance_m": 229.0,
   "midpoint_distance_m": 219.0,
   "start_elevation_m": 334.28655372381417,
   "end_elevation_m": 339.09455314347827,
   "start_xy": [
    427609.97978116025,
    6237136.246052066
   ],
   "end_xy": [
    427589.9945583835,
    6237135.47737101
   ]
  },
  "max_25m": {
   "gradient_pct": 23.34645711088865,
   "start_distance_m": 205.0,
   "end_distance_m": 230.0,
   "midpoint_distance_m": 217.5,
   "start_elevation_m": 333.4465097989256,
   "end_elevation_m": 339.28312407664777,
   "start_xy": [
    427613.97682571557,
    6237136.399788277
   ],
   "end_xy": [
    427588.9952972447,
    6237135.438936958
   ]
  },
  "max_50m": {
   "gradient_pct": 20.392063369691414,
   "start_distance_m": 180.0,
   "end_distance_m": 230.0,
   "midpoint_distance_m": 205.0,
   "start_elevation_m": 329.08709239180206,
   "end_elevation_m": 339.28312407664777,
   "start_xy": [
    427638.95835418644,
    6237137.360639596
   ],
   "end_xy": [
    427588.9952972447,
    6237135.438936958
   ]
  },
  "max_100m": {
   "gradient_pct": 17.09567429233664,
   "start_distance_m": 131.0,
   "end_distance_m": 231.0,
   "midpoint_distance_m": 181.0,
   "start_elevation_m": 322.33389272725844,
   "end_elevation_m": 339.4295670195951,
   "start_xy": [
    427687.9221499894,
    6237139.243908182
   ],
   "end_xy": [
    427587.99603610585,
    6237135.400502905
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 2.4296390012477787,
   "start_distance_m": 43.0,
   "end_distance_m": 48.0,
   "midpoint_distance_m": 45.5,
   "start_elevation_m": 314.0038067843376,
   "end_elevation_m": 314.1252887344,
   "start_xy": [
    427775.0922876839,
    6237135.529423454
   ],
   "end_xy": [
    427770.25166384346,
    6237136.781765594
   ]
  },
  "min_10m": {
   "gradient_pct": 3.4987369294628934,
   "start_distance_m": 43.0,
   "end_distance_m": 53.0,
   "midpoint_distance_m": 48.0,
   "start_elevation_m": 314.0038067843376,
   "end_elevation_m": 314.3536804772839,
   "start_xy": [
    427775.0922876839,
    6237135.529423454
   ],
   "end_xy": [
    427765.41104000306,
    6237138.0341077335
   ]
  },
  "min_20m": {
   "gradient_pct": 4.850614315463417,
   "start_distance_m": 43.0,
   "end_distance_m": 63.0,
   "midpoint_distance_m": 53.0,
   "start_elevation_m": 314.0038067843376,
   "end_elevation_m": 314.9739296474303,
   "start_xy": [
    427775.0922876839,
    6237135.529423454
   ],
   "end_xy": [
    427755.7297923222,
    6237140.538792014
   ]
  },
  "min_25m": {
   "gradient_pct": 5.3844496763458665,
   "start_distance_m": 24.0,
   "end_distance_m": 49.0,
   "midpoint_distance_m": 36.5,
   "start_elevation_m": 312.8259784213486,
   "end_elevation_m": 314.1720908404351,
   "start_xy": [
    427793.4866582775,
    6237130.770523322
   ],
   "end_xy": [
    427769.2835390754,
    6237137.032234021
   ]
  },
  "min_50m": {
   "gradient_pct": 6.003163407144484,
   "start_distance_m": 18.0,
   "end_distance_m": 68.0,
   "midpoint_distance_m": 43.0,
   "start_elevation_m": 312.43798199938976,
   "end_elevation_m": 315.439563702962,
   "start_xy": [
    427799.37346387276,
    6237130.184735109
   ],
   "end_xy": [
    427750.8756017361,
    6237141.665253507
   ]
  },
  "min_100m": {
   "gradient_pct": 8.454072132569706,
   "start_distance_m": 18.0,
   "end_distance_m": 118.0,
   "midpoint_distance_m": 68.0,
   "start_elevation_m": 312.43798199938976,
   "end_elevation_m": 320.89205413195947,
   "start_xy": [
    427799.37346387276,
    6237130.184735109
   ],
   "end_xy": [
    427700.91254479426,
    6237139.743550868
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.198971853682565,
   "start_distance_m": 12.0,
   "end_distance_m": 14.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 311.3642437478061,
   "end_elevation_m": 311.94822318487974,
   "start_xy": [
    427805.35264258186,
    6237130.684156739
   ],
   "end_xy": [
    427803.3595830121,
    6237130.5176828625
   ]
  },
  "max_3m": {
   "gradient_pct": 27.24440948171794,
   "start_distance_m": 222.0,
   "end_distance_m": 225.0,
   "midpoint_distance_m": 223.5,
   "start_elevation_m": 337.3254431244169,
   "end_elevation_m": 338.14277540886843,
   "start_xy": [
    427596.98938635533,
    6237135.74640938
   ],
   "end_xy": [
    427593.99160293886,
    6237135.631107221
   ]
  }
 },
 "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": 0.0,
   "obstruction_max_height_m": 0.07,
   "flagged_windows_m": []
  },
  "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-pyr1",
   "road_pbf": "block-batch-fr-pyr1.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_E427-N6237_0m5@21LHD1FQ-2025-09-15.tif"
  ],
  "calculated_at": "2026-09-20T06:44:14+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr1",
  "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": [
   "E427-N6237"
  ],
  "elevation_blocks": [
   "21LHD1FQ@2025-09-15"
  ],
  "ign_dalles": [
   "LHD_FXX_0427_6238_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD1FQ"
  ],
  "ign_editions": [
   "2025-09-15"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0427_6238_MNT_O_0M50_LAMB93_IGN69": "2025-09-15"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 15,
   "stations_resolved": 15,
   "width_median_m": 3.25,
   "width_p10_m": 1.7,
   "width_min_m": 1.25,
   "width_max_m": 12.0,
   "bounded_share": 0.133,
   "unbounded_share": 0.867,
   "confidence_median": 0.0,
   "width_median_bounded_m": 1.38,
   "window_m": [
    205.0,
    230.0
   ],
   "width_at_max25_m": 2.62,
   "window_stations": 6,
   "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": 15,
    "stations_resolved": 15,
    "width_median_m": 9.25,
    "width_p10_m": 7.2,
    "width_min_m": 6.75,
    "width_max_m": 12.0,
    "bounded_share": 0.267,
    "unbounded_share": 0.733,
    "confidence_median": 0.0,
    "width_median_bounded_m": 7.5,
    "window_m": [
     205.0,
     230.0
    ],
    "width_at_max25_m": 9.25,
    "window_stations": 6,
    "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": "Bosdarros",
  "county": "Pyr\u00e9n\u00e9es-Atlantiques",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}