{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.4703, 6.3836)",
 "slug": "discovered-lane-43-4703-6-3836",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 50.1207508606754,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 191.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 196.2713441424781,
   "end_elevation_m": 197.27375915969162,
   "min_gradient_pct": -1.9331597248196886,
   "suppressed_max_gradient_pct": 57.62794505936597,
   "suppressed_location_m": [
    201.0,
    203.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 35.26618658195749,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 191.0,
   "end_distance_m": 194.0,
   "start_elevation_m": 196.2713441424781,
   "end_elevation_m": 197.32932973993684,
   "min_gradient_pct": -1.7047037105688407,
   "suppressed_max_gradient_pct": 47.83323647592207,
   "suppressed_location_m": [
    201.0,
    204.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.1397843383877,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "suppression_unstable",
    "canopy_or_structure"
   ],
   "start_distance_m": 190.0,
   "end_distance_m": 195.0,
   "start_elevation_m": 196.22864093462096,
   "end_elevation_m": 197.38563015154034,
   "min_gradient_pct": -1.5188947041031042,
   "suppressed_max_gradient_pct": 30.849351866295365,
   "suppressed_location_m": [
    199.0,
    204.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.97165058653104,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 163.0,
   "end_distance_m": 173.0,
   "start_elevation_m": 191.19218264594028,
   "end_elevation_m": 193.28934770459338,
   "min_gradient_pct": 2.027261973134671
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.963583041468382,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 163.0,
   "end_distance_m": 183.0,
   "start_elevation_m": 191.19218264594028,
   "end_elevation_m": 195.18489925423395,
   "min_gradient_pct": 3.4231099958211075
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.012611779357712,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 168.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 192.2706062148522,
   "end_elevation_m": 197.27375915969162,
   "min_gradient_pct": 3.5950322713893
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.094656455696793,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 143.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 188.22643093184323,
   "end_elevation_m": 197.27375915969162,
   "min_gradient_pct": 4.716256265979155,
   "suppressed_max_gradient_pct": 18.73013737951908,
   "suppressed_location_m": [
    154.0,
    204.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.93022227954549,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 93.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 182.34353688014613,
   "end_elevation_m": 197.27375915969162,
   "min_gradient_pct": 6.564848921455848,
   "suppressed_max_gradient_pct": 15.624326503913634,
   "suppressed_location_m": [
    104.0,
    204.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.426,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 106.0,
  "shape_class": "sustained"
 },
 "length_m": 207.33840409115965,
 "start_elevation_m": 176.4277874841428,
 "end_elevation_m": 199.02259280271923,
 "endpoint_gain_m": 22.59480531857642,
 "overall_gradient_pct": 10.897549548342356,
 "accumulated_ascent_m": 22.70980637884503,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.1397843383877,
   "start_distance_m": 190.0,
   "end_distance_m": 195.0,
   "midpoint_distance_m": 192.5,
   "start_elevation_m": 196.22864093462096,
   "end_elevation_m": 197.38563015154034,
   "start_xy": [
    973882.6054309153,
    6269413.782774928
   ],
   "end_xy": [
    973887.4050130057,
    6269414.633004226
   ]
  },
  "max_10m": {
   "gradient_pct": 20.97165058653104,
   "start_distance_m": 163.0,
   "end_distance_m": 173.0,
   "midpoint_distance_m": 168.0,
   "start_elevation_m": 191.19218264594028,
   "end_elevation_m": 193.28934770459338,
   "start_xy": [
    973863.9725461482,
    6269395.372409733
   ],
   "end_xy": [
    973869.4882123267,
    6269403.71371818
   ]
  },
  "max_20m": {
   "gradient_pct": 19.963583041468382,
   "start_distance_m": 163.0,
   "end_distance_m": 183.0,
   "midpoint_distance_m": 173.0,
   "start_elevation_m": 191.19218264594028,
   "end_elevation_m": 195.18489925423395,
   "start_xy": [
    973863.9725461482,
    6269395.372409733
   ],
   "end_xy": [
    973876.4288262662,
    6269410.488908658
   ]
  },
  "max_25m": {
   "gradient_pct": 20.012611779357712,
   "start_distance_m": 168.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 180.5,
   "start_elevation_m": 192.2706062148522,
   "end_elevation_m": 197.27375915969162,
   "start_xy": [
    973866.7303792374,
    6269399.543063956
   ],
   "end_xy": [
    973885.4052427107,
    6269414.602693049
   ]
  },
  "max_50m": {
   "gradient_pct": 18.094656455696793,
   "start_distance_m": 143.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 168.0,
   "start_elevation_m": 188.22643093184323,
   "end_elevation_m": 197.27375915969162,
   "start_xy": [
    973853.1147506244,
    6269378.576606563
   ],
   "end_xy": [
    973885.4052427107,
    6269414.602693049
   ]
  },
  "max_100m": {
   "gradient_pct": 14.93022227954549,
   "start_distance_m": 93.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 143.0,
   "start_elevation_m": 182.34353688014613,
   "end_elevation_m": 197.27375915969162,
   "start_xy": [
    973826.0639736336,
    6269336.525976792
   ],
   "end_xy": [
    973885.4052427107,
    6269414.602693049
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.5188947041031042,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 176.4277874841428,
   "end_elevation_m": 176.35184274893766,
   "start_xy": [
    973776.739,
    6269257.708
   ],
   "end_xy": [
    973779.4095572126,
    6269261.9350704
   ]
  },
  "min_10m": {
   "gradient_pct": 2.027261973134671,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 176.4277874841428,
   "end_elevation_m": 176.63051368145628,
   "start_xy": [
    973776.739,
    6269257.708
   ],
   "end_xy": [
    973782.0801144253,
    6269266.162140802
   ]
  },
  "min_20m": {
   "gradient_pct": 3.4231099958211075,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 176.4277874841428,
   "end_elevation_m": 177.11240948330703,
   "start_xy": [
    973776.739,
    6269257.708
   ],
   "end_xy": [
    973787.3595523576,
    6269274.653853663
   ]
  },
  "min_25m": {
   "gradient_pct": 3.5950322713893,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 176.4277874841428,
   "end_elevation_m": 177.32654555199014,
   "start_xy": [
    973776.739,
    6269257.708
   ],
   "end_xy": [
    973789.8907874726,
    6269278.965796241
   ]
  },
  "min_50m": {
   "gradient_pct": 4.716256265979155,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 176.4277874841428,
   "end_elevation_m": 178.7859156171324,
   "start_xy": [
    973776.739,
    6269257.708
   ],
   "end_xy": [
    973802.582512677,
    6269300.503500121
   ]
  },
  "min_100m": {
   "gradient_pct": 6.564848921455848,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 176.4277874841428,
   "end_elevation_m": 182.99263640559866,
   "start_xy": [
    973776.739,
    6269257.708
   ],
   "end_xy": [
    973829.8510824123,
    6269342.413064959
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 50.1207508606754,
   "start_distance_m": 191.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 192.0,
   "start_elevation_m": 196.2713441424781,
   "end_elevation_m": 197.27375915969162,
   "start_xy": [
    973883.487803008,
    6269414.253327253
   ],
   "end_xy": [
    973885.4052427107,
    6269414.602693049
   ]
  },
  "max_3m": {
   "gradient_pct": 35.26618658195749,
   "start_distance_m": 191.0,
   "end_distance_m": 194.0,
   "midpoint_distance_m": 192.5,
   "start_elevation_m": 196.2713441424781,
   "end_elevation_m": 197.32932973993684,
   "start_xy": [
    973883.487803008,
    6269414.253327253
   ],
   "end_xy": [
    973886.4051278582,
    6269414.6178486375
   ]
  }
 },
 "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": 0.029,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 0,
   "windows_masked": [],
   "advisory": [],
   "unresolved": [],
   "unstable": [
    {
     "window_m": 5.0,
     "start_m": 190.0,
     "end_m": 195.0,
     "raw_pct": 23.14,
     "reason": "mask-edge",
     "perturbations": [
      "phase+0.000/mask+0",
      "phase+0.333/mask+1",
      "phase+0.667/mask-1"
     ],
     "perturbation_reasons": [
      "mask-edge",
      "",
      "mask-edge"
     ]
    }
   ]
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.196,
   "obstruction_max_height_m": 17.2,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    200.0,
    205.0
   ]
  ],
  "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-pr7",
   "road_pbf": "block-batch-fr-pr7.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_E973-N6269_0m5@22LHD6QQ-2025-03-24.tif"
  ],
  "calculated_at": "2026-09-25T09:10:36+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr7.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr7",
  "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": [
   "E973-N6269"
  ],
  "elevation_blocks": [
   "22LHD6QQ@2025-03-24"
  ],
  "ign_dalles": [
   "LHD_FXX_0973_6270_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6QQ"
  ],
  "ign_editions": [
   "2025-03-24"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0973_6270_MNT_O_0M50_LAMB93_IGN69": "2025-03-24"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "suppression_unstable": [
   5.0
  ],
  "carriageway": {
   "stations": 15,
   "stations_resolved": 15,
   "width_median_m": 5.75,
   "width_p10_m": 3.85,
   "width_min_m": 3.5,
   "width_max_m": 12.0,
   "bounded_share": 0.067,
   "unbounded_share": 0.933,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.5,
   "window_m": [
    168.0,
    193.0
   ],
   "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": 15,
    "stations_resolved": 15,
    "width_median_m": 3.0,
    "width_p10_m": 0.8,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.733,
    "unbounded_share": 0.267,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.5,
    "window_m": [
     168.0,
     193.0
    ],
    "width_at_max25_m": 2.5,
    "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": "Lorgues",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}