{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.6010, 6.0112)",
 "slug": "discovered-lane-43-6010-6-0112",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.99818901601998,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1081.0,
   "end_distance_m": 1083.0,
   "start_elevation_m": 426.41118784190564,
   "end_elevation_m": 426.91115162222604,
   "min_gradient_pct": -4.417639250618777,
   "suppressed_max_gradient_pct": 34.332080732332315,
   "suppressed_location_m": [
    1199.0,
    1201.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.953525424311312,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1080.0,
   "end_distance_m": 1083.0,
   "start_elevation_m": 426.1925458594967,
   "end_elevation_m": 426.91115162222604,
   "min_gradient_pct": -3.162315110254591,
   "suppressed_max_gradient_pct": 28.36204448655053,
   "suppressed_location_m": [
    1198.0,
    1201.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.700981851322922,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1078.0,
   "end_distance_m": 1083.0,
   "start_elevation_m": 425.7261025296599,
   "end_elevation_m": 426.91115162222604,
   "min_gradient_pct": -0.8559751086681899,
   "suppressed_max_gradient_pct": 24.29739457039659,
   "suppressed_location_m": [
    1196.0,
    1201.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.419606102612534,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1079.0,
   "end_distance_m": 1089.0,
   "start_elevation_m": 425.9501777621367,
   "end_elevation_m": 428.292138372398,
   "min_gradient_pct": 0.7585624654052481
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.60807486907879,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1074.0,
   "end_distance_m": 1094.0,
   "start_elevation_m": 424.8637409137742,
   "end_elevation_m": 429.38535588759,
   "min_gradient_pct": 1.2669502907186825
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.220435995871412,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1075.0,
   "end_distance_m": 1100.0,
   "start_elevation_m": 425.05546899102706,
   "end_elevation_m": 430.6105779899949,
   "min_gradient_pct": 1.3134275477655137
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.34584634732721,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1059.0,
   "end_distance_m": 1109.0,
   "start_elevation_m": 422.1177524347634,
   "end_elevation_m": 432.290675608427,
   "min_gradient_pct": 1.9747003124186904
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.349271336993525,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1018.0,
   "end_distance_m": 1118.0,
   "start_elevation_m": 414.44674017941855,
   "end_elevation_m": 433.7960115164121,
   "min_gradient_pct": 2.69672437381314
  }
 ],
 "shape": {
  "ascent_concentration": 0.497,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 235.0,
  "shape_class": "stepped"
 },
 "length_m": 1201.0160819567157,
 "start_elevation_m": 356.95236995727873,
 "end_elevation_m": 446.3565500488326,
 "endpoint_gain_m": 89.40418009155388,
 "overall_gradient_pct": 7.444045207612464,
 "accumulated_ascent_m": 89.63840436976506,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.700981851322922,
   "start_distance_m": 1078.0,
   "end_distance_m": 1083.0,
   "midpoint_distance_m": 1080.5,
   "start_elevation_m": 425.7261025296599,
   "end_elevation_m": 426.91115162222604,
   "start_xy": [
    943158.0931027526,
    6282752.586726741
   ],
   "end_xy": [
    943160.8869855276,
    6282756.73305703
   ]
  },
  "max_10m": {
   "gradient_pct": 23.419606102612534,
   "start_distance_m": 1079.0,
   "end_distance_m": 1089.0,
   "midpoint_distance_m": 1084.0,
   "start_elevation_m": 425.9501777621367,
   "end_elevation_m": 428.292138372398,
   "start_xy": [
    943158.6501389359,
    6282753.417214965
   ],
   "end_xy": [
    943164.439520303,
    6282761.568291943
   ]
  },
  "max_20m": {
   "gradient_pct": 22.60807486907879,
   "start_distance_m": 1074.0,
   "end_distance_m": 1094.0,
   "midpoint_distance_m": 1084.0,
   "start_elevation_m": 424.8637409137742,
   "end_elevation_m": 429.38535588759,
   "start_xy": [
    943155.8649580193,
    6282749.264773844
   ],
   "end_xy": [
    943167.3999659492,
    6282765.597654371
   ]
  },
  "max_25m": {
   "gradient_pct": 22.220435995871412,
   "start_distance_m": 1075.0,
   "end_distance_m": 1100.0,
   "midpoint_distance_m": 1087.5,
   "start_elevation_m": 425.05546899102706,
   "end_elevation_m": 430.6105779899949,
   "start_xy": [
    943156.4219942027,
    6282750.095262068
   ],
   "end_xy": [
    943170.9525007247,
    6282770.432889285
   ]
  },
  "max_50m": {
   "gradient_pct": 20.34584634732721,
   "start_distance_m": 1059.0,
   "end_distance_m": 1109.0,
   "midpoint_distance_m": 1084.0,
   "start_elevation_m": 422.1177524347634,
   "end_elevation_m": 432.290675608427,
   "start_xy": [
    943147.5094152695,
    6282736.807450482
   ],
   "end_xy": [
    943176.2813028878,
    6282777.685741655
   ]
  },
  "max_100m": {
   "gradient_pct": 19.349271336993525,
   "start_distance_m": 1018.0,
   "end_distance_m": 1118.0,
   "midpoint_distance_m": 1068.0,
   "start_elevation_m": 414.44674017941855,
   "end_elevation_m": 433.7960115164121,
   "start_xy": [
    943139.881827468,
    6282697.594527744
   ],
   "end_xy": [
    943181.6101050511,
    6282784.938594026
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.8559751086681899,
   "start_distance_m": 861.0,
   "end_distance_m": 866.0,
   "midpoint_distance_m": 863.5,
   "start_elevation_m": 398.8185425977664,
   "end_elevation_m": 398.775743842333,
   "start_xy": [
    943126.2759575398,
    6282548.79874468
   ],
   "end_xy": [
    943125.3606994415,
    6282553.702604324
   ]
  },
  "min_10m": {
   "gradient_pct": 0.7585624654052481,
   "start_distance_m": 323.0,
   "end_distance_m": 333.0,
   "midpoint_distance_m": 328.0,
   "start_elevation_m": 370.58475370902784,
   "end_elevation_m": 370.66060995556836,
   "start_xy": [
    943312.4326396957,
    6282067.795561145
   ],
   "end_xy": [
    943314.1611406604,
    6282076.638031282
   ]
  },
  "min_20m": {
   "gradient_pct": 1.2669502907186825,
   "start_distance_m": 650.0,
   "end_distance_m": 670.0,
   "midpoint_distance_m": 660.0,
   "start_elevation_m": 384.3931482885773,
   "end_elevation_m": 384.64653834672106,
   "start_xy": [
    943165.5664913574,
    6282346.484333314
   ],
   "end_xy": [
    943153.7554325286,
    6282362.583231066
   ]
  },
  "min_25m": {
   "gradient_pct": 1.3134275477655137,
   "start_distance_m": 655.0,
   "end_distance_m": 680.0,
   "midpoint_distance_m": 667.5,
   "start_elevation_m": 384.4641327760812,
   "end_elevation_m": 384.7924896630226,
   "start_xy": [
    943162.9870265558,
    6282350.76759858
   ],
   "end_xy": [
    943147.5501939262,
    6282370.4251067275
   ]
  },
  "min_50m": {
   "gradient_pct": 1.9747003124186904,
   "start_distance_m": 632.0,
   "end_distance_m": 682.0,
   "midpoint_distance_m": 657.0,
   "start_elevation_m": 383.8422899186557,
   "end_elevation_m": 384.82964007486504,
   "start_xy": [
    943174.8525646433,
    6282331.064578357
   ],
   "end_xy": [
    943146.3091462058,
    6282371.9934818605
   ]
  },
  "min_100m": {
   "gradient_pct": 2.69672437381314,
   "start_distance_m": 305.0,
   "end_distance_m": 405.0,
   "midpoint_distance_m": 355.0,
   "start_elevation_m": 370.18187505908503,
   "end_elevation_m": 372.87859943289817,
   "start_xy": [
    943305.9663243848,
    6282050.997145556
   ],
   "end_xy": [
    943258.4944223054,
    6282122.169035129
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.99818901601998,
   "start_distance_m": 1081.0,
   "end_distance_m": 1083.0,
   "midpoint_distance_m": 1082.0,
   "start_elevation_m": 426.41118784190564,
   "end_elevation_m": 426.91115162222604,
   "start_xy": [
    943159.7642113025,
    6282755.078191414
   ],
   "end_xy": [
    943160.8869855276,
    6282756.73305703
   ]
  },
  "max_3m": {
   "gradient_pct": 23.953525424311312,
   "start_distance_m": 1080.0,
   "end_distance_m": 1083.0,
   "midpoint_distance_m": 1081.5,
   "start_elevation_m": 426.1925458594967,
   "end_elevation_m": 426.91115162222604,
   "start_xy": [
    943159.2071751192,
    6282754.247703189
   ],
   "end_xy": [
    943160.8869855276,
    6282756.73305703
   ]
  }
 },
 "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": 0.007,
   "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": 1196.0,
     "end_m": 1201.0,
     "raw_pct": 24.3,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.105,
   "obstruction_max_height_m": 13.7,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20
   ]
  },
  "excluded_ranges_m": [
   [
    1194.0,
    1201.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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-pr5",
   "road_pbf": "block-batch-fr-pr5.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_E943-N6281_0m5@22LHD6QQ-2025-03-24.tif",
   "data/cache/fr/ign-lidarhd_dtm_E943-N6282_0m5@22LHD6QQ-2025-03-24.tif"
  ],
  "calculated_at": "2026-09-25T08:51:05+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr5.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr5",
  "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": [
   "E943-N6281",
   "E943-N6282"
  ],
  "elevation_blocks": [
   "22LHD6QQ@2025-03-24"
  ],
  "ign_dalles": [
   "LHD_FXX_0943_6282_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0943_6283_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6QQ"
  ],
  "ign_editions": [
   "2025-03-24"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0943_6282_MNT_O_0M50_LAMB93_IGN69": "2025-03-24",
   "LHD_FXX_0943_6283_MNT_O_0M50_LAMB93_IGN69": "2025-03-24"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "carriageway": {
   "stations": 53,
   "stations_resolved": 53,
   "width_median_m": 4.5,
   "width_p10_m": 3.0,
   "width_min_m": 2.0,
   "width_max_m": 12.0,
   "bounded_share": 0.472,
   "unbounded_share": 0.528,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    1075.0,
    1100.0
   ],
   "width_at_max25_m": 4.38,
   "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": 53,
    "stations_resolved": 53,
    "width_median_m": 5.5,
    "width_p10_m": 1.8,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.717,
    "unbounded_share": 0.283,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.25,
    "window_m": [
     1075.0,
     1100.0
    ],
    "width_at_max25_m": 3.5,
    "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": "Tavernes",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}