{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.2022, 6.0410)",
 "slug": "discovered-lane-43-2022-6-0410",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 45.668887586364804,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 403.0,
   "end_distance_m": 405.0,
   "start_elevation_m": 152.06393617184975,
   "end_elevation_m": 152.97731392357704,
   "min_gradient_pct": -5.423049807747304,
   "suppressed_max_gradient_pct": 93.08701407244655,
   "suppressed_location_m": [
    327.0,
    329.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.42365698817313,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 402.0,
   "end_distance_m": 405.0,
   "start_elevation_m": 151.82460421393185,
   "end_elevation_m": 152.97731392357704,
   "min_gradient_pct": -1.5502320832818366,
   "suppressed_max_gradient_pct": 89.88559335304842,
   "suppressed_location_m": [
    326.0,
    329.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 30.332286272561646,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 387.0,
   "end_distance_m": 392.0,
   "start_elevation_m": 148.63707271545252,
   "end_elevation_m": 150.1536870290806,
   "min_gradient_pct": -1.0090695847475217,
   "suppressed_max_gradient_pct": 86.10303840858535,
   "suppressed_location_m": [
    324.0,
    329.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.07367895477654,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 387.0,
   "end_distance_m": 397.0,
   "start_elevation_m": 148.63707271545252,
   "end_elevation_m": 151.44444061093017,
   "min_gradient_pct": 0.3157926103094155,
   "suppressed_max_gradient_pct": 59.7677364092047,
   "suppressed_location_m": [
    320.0,
    330.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 25.42724154160439,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 376.0,
   "end_distance_m": 396.0,
   "start_elevation_m": 146.1322754338746,
   "end_elevation_m": 151.2177237421955,
   "min_gradient_pct": 1.6963584825530376,
   "suppressed_max_gradient_pct": 44.52704670967876,
   "suppressed_location_m": [
    310.0,
    330.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.556002259897355,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 372.0,
   "end_distance_m": 397.0,
   "start_elevation_m": 145.30544004595583,
   "end_elevation_m": 151.44444061093017,
   "min_gradient_pct": 2.9119916751884034,
   "suppressed_max_gradient_pct": 40.17216115287209,
   "suppressed_location_m": [
    305.0,
    330.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 24.0437839344857,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 347.0,
   "end_distance_m": 397.0,
   "start_elevation_m": 139.42254864368732,
   "end_elevation_m": 151.44444061093017,
   "min_gradient_pct": 3.7930487333322844,
   "suppressed_max_gradient_pct": 29.37089572783293,
   "suppressed_location_m": [
    280.0,
    330.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.590378205760288,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 347.0,
   "end_distance_m": 447.0,
   "start_elevation_m": 139.42254864368732,
   "end_elevation_m": 161.0129268494476,
   "min_gradient_pct": 6.226468782654435,
   "suppressed_max_gradient_pct": 25.78541811309144,
   "suppressed_location_m": [
    305.0,
    405.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.387,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 207.0,
  "shape_class": "sustained"
 },
 "length_m": 509.11624052550377,
 "start_elevation_m": 89.68134364203327,
 "end_elevation_m": 170.23075803351122,
 "endpoint_gain_m": 80.54941439147795,
 "overall_gradient_pct": 15.821419153381514,
 "accumulated_ascent_m": 80.86883312986659,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 30.332286272561646,
   "start_distance_m": 387.0,
   "end_distance_m": 392.0,
   "midpoint_distance_m": 389.5,
   "start_elevation_m": 148.63707271545252,
   "end_elevation_m": 150.1536870290806,
   "start_xy": [
    947213.4607802076,
    6238458.0274352655
   ],
   "end_xy": [
    947208.9276003251,
    6238460.137003978
   ]
  },
  "max_10m": {
   "gradient_pct": 28.07367895477654,
   "start_distance_m": 387.0,
   "end_distance_m": 397.0,
   "midpoint_distance_m": 392.0,
   "start_elevation_m": 148.63707271545252,
   "end_elevation_m": 151.44444061093017,
   "start_xy": [
    947213.4607802076,
    6238458.0274352655
   ],
   "end_xy": [
    947204.3944204425,
    6238462.24657269
   ]
  },
  "max_20m": {
   "gradient_pct": 25.42724154160439,
   "start_distance_m": 376.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 386.0,
   "start_elevation_m": 146.1322754338746,
   "end_elevation_m": 151.2177237421955,
   "start_xy": [
    947223.4337759493,
    6238453.386384099
   ],
   "end_xy": [
    947205.301056419,
    6238461.824658948
   ]
  },
  "max_25m": {
   "gradient_pct": 24.556002259897355,
   "start_distance_m": 372.0,
   "end_distance_m": 397.0,
   "midpoint_distance_m": 384.5,
   "start_elevation_m": 145.30544004595583,
   "end_elevation_m": 151.44444061093017,
   "start_xy": [
    947227.0603198553,
    6238451.698729129
   ],
   "end_xy": [
    947204.3944204425,
    6238462.24657269
   ]
  },
  "max_50m": {
   "gradient_pct": 24.0437839344857,
   "start_distance_m": 347.0,
   "end_distance_m": 397.0,
   "midpoint_distance_m": 372.0,
   "start_elevation_m": 139.42254864368732,
   "end_elevation_m": 151.44444061093017,
   "start_xy": [
    947248.5907569652,
    6238439.509882664
   ],
   "end_xy": [
    947204.3944204425,
    6238462.24657269
   ]
  },
  "max_100m": {
   "gradient_pct": 21.590378205760288,
   "start_distance_m": 347.0,
   "end_distance_m": 447.0,
   "midpoint_distance_m": 397.0,
   "start_elevation_m": 139.42254864368732,
   "end_elevation_m": 161.0129268494476,
   "start_xy": [
    947248.5907569652,
    6238439.509882664
   ],
   "end_xy": [
    947159.0626216169,
    6238483.342259814
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.0090695847475217,
   "start_distance_m": 1.0,
   "end_distance_m": 6.0,
   "midpoint_distance_m": 3.5,
   "start_elevation_m": 89.66541998725225,
   "end_elevation_m": 89.61496650801487,
   "start_xy": [
    947488.411301249,
    6238400.25422349
   ],
   "end_xy": [
    947483.5528074941,
    6238401.435340941
   ]
  },
  "min_10m": {
   "gradient_pct": 0.3157926103094155,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 89.68134364203327,
   "end_elevation_m": 89.71292290306421,
   "start_xy": [
    947489.383,
    6238400.018
   ],
   "end_xy": [
    947479.6713058164,
    6238402.392434195
   ]
  },
  "min_20m": {
   "gradient_pct": 1.6963584825530376,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 89.68134364203327,
   "end_elevation_m": 90.02061533854388,
   "start_xy": [
    947489.383,
    6238400.018
   ],
   "end_xy": [
    947471.3083208863,
    6238407.875178312
   ]
  },
  "min_25m": {
   "gradient_pct": 2.9119916751884034,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 89.68134364203327,
   "end_elevation_m": 90.40934156083037,
   "start_xy": [
    947489.383,
    6238400.018
   ],
   "end_xy": [
    947467.7307914227,
    6238411.3487367965
   ]
  },
  "min_50m": {
   "gradient_pct": 3.7930487333322844,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 89.68134364203327,
   "end_elevation_m": 91.57786800869941,
   "start_xy": [
    947489.383,
    6238400.018
   ],
   "end_xy": [
    947454.4808114916,
    6238432.420005701
   ]
  },
  "min_100m": {
   "gradient_pct": 6.226468782654435,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 89.68134364203327,
   "end_elevation_m": 95.9078124246877,
   "start_xy": [
    947489.383,
    6238400.018
   ],
   "end_xy": [
    947412.1820058896,
    6238442.520531234
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 45.668887586364804,
   "start_distance_m": 403.0,
   "end_distance_m": 405.0,
   "midpoint_distance_m": 404.0,
   "start_elevation_m": 152.06393617184975,
   "end_elevation_m": 152.97731392357704,
   "start_xy": [
    947198.9546045834,
    6238464.778055145
   ],
   "end_xy": [
    947197.1413326304,
    6238465.6218826305
   ]
  },
  "max_3m": {
   "gradient_pct": 38.42365698817313,
   "start_distance_m": 402.0,
   "end_distance_m": 405.0,
   "midpoint_distance_m": 403.5,
   "start_elevation_m": 151.82460421393185,
   "end_elevation_m": 152.97731392357704,
   "start_xy": [
    947199.86124056,
    6238464.356141402
   ],
   "end_xy": [
    947197.1413326304,
    6238465.6218826305
   ]
  }
 },
 "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": 0.031,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.08,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.436,
   "obstruction_max_height_m": 23.27,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    290.0,
    320.0
   ],
   [
    322.0,
    331.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832",
   "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-pr6",
   "road_pbf": "block-batch-fr-pr6.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:ba95a0bf562c86eb"
  },
  "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_E947-N6238_0m5@22LHD6QQ-2025-03-24.tif"
  ],
  "calculated_at": "2026-09-25T09:17:08+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr6.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr6",
  "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": [
   "E947-N6238"
  ],
  "elevation_blocks": [
   "22LHD6QQ@2025-03-24"
  ],
  "ign_dalles": [
   "LHD_FXX_0947_6239_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6QQ"
  ],
  "ign_editions": [
   "2025-03-24"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0947_6239_MNT_O_0M50_LAMB93_IGN69": "2025-03-24"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "carriageway": {
   "stations": 27,
   "stations_resolved": 27,
   "width_median_m": 5.25,
   "width_p10_m": 2.8,
   "width_min_m": 1.75,
   "width_max_m": 12.0,
   "bounded_share": 0.444,
   "unbounded_share": 0.556,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    372.0,
    397.0
   ],
   "width_at_max25_m": 4.0,
   "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": 27,
    "stations_resolved": 27,
    "width_median_m": 3.25,
    "width_p10_m": 0.5,
    "width_min_m": 0.5,
    "width_max_m": 11.5,
    "bounded_share": 0.889,
    "unbounded_share": 0.111,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.38,
    "window_m": [
     372.0,
     397.0
    ],
    "width_at_max25_m": 1.5,
    "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": "Solli\u00e8s-Pont",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}