{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.1495, 1.0256)",
 "slug": "discovered-lane-43-1495-1-0256",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.637779558568013,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 953.0,
   "end_distance_m": 955.0,
   "start_elevation_m": 468.6422216563161,
   "end_elevation_m": 469.27497724748747,
   "min_gradient_pct": -14.531498092253514,
   "suppressed_max_gradient_pct": 57.80741165313543,
   "suppressed_location_m": [
    892.0,
    894.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.356767891708994,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 953.0,
   "end_distance_m": 956.0,
   "start_elevation_m": 468.6422216563161,
   "end_elevation_m": 469.4929246930674,
   "min_gradient_pct": -14.322332477608294,
   "suppressed_max_gradient_pct": 49.264455921502304,
   "suppressed_location_m": [
    891.0,
    894.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.091680827283653,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 903.0,
   "end_distance_m": 908.0,
   "start_elevation_m": 460.208541549145,
   "end_elevation_m": 461.4631255905092,
   "min_gradient_pct": -14.19455740816602,
   "suppressed_max_gradient_pct": 37.684714197122275,
   "suppressed_location_m": [
    889.0,
    894.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.022349633340355,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 922.0,
   "end_distance_m": 932.0,
   "start_elevation_m": 462.9472250036757,
   "end_elevation_m": 465.14945996700976,
   "min_gradient_pct": -13.629175975486305,
   "suppressed_max_gradient_pct": 28.22425636776927,
   "suppressed_location_m": [
    884.0,
    894.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.44015517627821,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 919.0,
   "end_distance_m": 939.0,
   "start_elevation_m": 462.34817943217183,
   "end_elevation_m": 466.6362104674275,
   "min_gradient_pct": -12.504511105552751,
   "suppressed_max_gradient_pct": 21.70619223879612,
   "suppressed_location_m": [
    875.0,
    895.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.478088476979337,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 915.0,
   "end_distance_m": 940.0,
   "start_elevation_m": 461.70720695299826,
   "end_elevation_m": 466.8267290722431,
   "min_gradient_pct": -11.773050195946553,
   "suppressed_max_gradient_pct": 20.48738037950693,
   "suppressed_location_m": [
    869.0,
    894.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.11708675569082,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 905.0,
   "end_distance_m": 955.0,
   "start_elevation_m": 460.71643386964206,
   "end_elevation_m": 469.27497724748747,
   "min_gradient_pct": -8.22269140539106,
   "suppressed_max_gradient_pct": 18.558596678529852,
   "suppressed_location_m": [
    844.0,
    894.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.86059481248111,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 788.0,
   "end_distance_m": 888.0,
   "start_elevation_m": 443.4854554537152,
   "end_elevation_m": 457.3460502661963,
   "min_gradient_pct": -1.9088279788821296,
   "suppressed_max_gradient_pct": 17.37127476775771,
   "suppressed_location_m": [
    855.0,
    955.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.394,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 107.0,
  "shape_class": "sustained"
 },
 "length_m": 958.138896801625,
 "start_elevation_m": 386.151661960456,
 "end_elevation_m": 469.46137684813095,
 "endpoint_gain_m": 83.30971488767494,
 "overall_gradient_pct": 8.694951761771922,
 "accumulated_ascent_m": 88.10173460617187,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.091680827283653,
   "start_distance_m": 903.0,
   "end_distance_m": 908.0,
   "midpoint_distance_m": 905.5,
   "start_elevation_m": 460.208541549145,
   "end_elevation_m": 461.4631255905092,
   "start_xy": [
    539550.9676721196,
    6230043.069164204
   ],
   "end_xy": [
    539553.4555564969,
    6230047.406263619
   ]
  },
  "max_10m": {
   "gradient_pct": 22.022349633340355,
   "start_distance_m": 922.0,
   "end_distance_m": 932.0,
   "midpoint_distance_m": 927.0,
   "start_elevation_m": 462.9472250036757,
   "end_elevation_m": 465.14945996700976,
   "start_xy": [
    539559.8598583799,
    6230059.837496722
   ],
   "end_xy": [
    539563.9814954353,
    6230068.948594789
   ]
  },
  "max_20m": {
   "gradient_pct": 21.44015517627821,
   "start_distance_m": 919.0,
   "end_distance_m": 939.0,
   "midpoint_distance_m": 929.0,
   "start_elevation_m": 462.34817943217183,
   "end_elevation_m": 466.6362104674275,
   "start_xy": [
    539558.6233672632,
    6230057.104167302
   ],
   "end_xy": [
    539566.8666413742,
    6230075.326363435
   ]
  },
  "max_25m": {
   "gradient_pct": 20.478088476979337,
   "start_distance_m": 915.0,
   "end_distance_m": 940.0,
   "midpoint_distance_m": 927.5,
   "start_elevation_m": 461.70720695299826,
   "end_elevation_m": 466.8267290722431,
   "start_xy": [
    539556.9385946251,
    6230053.4782027975
   ],
   "end_xy": [
    539567.2788050798,
    6230076.237473242
   ]
  },
  "max_50m": {
   "gradient_pct": 17.11708675569082,
   "start_distance_m": 905.0,
   "end_distance_m": 955.0,
   "midpoint_distance_m": 930.0,
   "start_elevation_m": 460.71643386964206,
   "end_elevation_m": 469.27497724748747,
   "start_xy": [
    539551.9628258705,
    6230044.80400397
   ],
   "end_xy": [
    539573.4612606629,
    6230089.904120342
   ]
  },
  "max_100m": {
   "gradient_pct": 13.86059481248111,
   "start_distance_m": 788.0,
   "end_distance_m": 888.0,
   "midpoint_distance_m": 838.0,
   "start_elevation_m": 443.4854554537152,
   "end_elevation_m": 457.3460502661963,
   "start_xy": [
    539488.3892991834,
    6229955.530076932
   ],
   "end_xy": [
    539543.5040189879,
    6230030.057865963
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.19455740816602,
   "start_distance_m": 227.0,
   "end_distance_m": 232.0,
   "midpoint_distance_m": 229.5,
   "start_elevation_m": 400.3492646286393,
   "end_elevation_m": 399.639536758231,
   "start_xy": [
    539057.6282402626,
    6229629.353913526
   ],
   "end_xy": [
    539061.9827279306,
    6229631.8112366935
   ]
  },
  "min_10m": {
   "gradient_pct": -13.629175975486305,
   "start_distance_m": 227.0,
   "end_distance_m": 237.0,
   "midpoint_distance_m": 232.0,
   "start_elevation_m": 400.3492646286393,
   "end_elevation_m": 398.98634703109065,
   "start_xy": [
    539057.6282402626,
    6229629.353913526
   ],
   "end_xy": [
    539066.3372155987,
    6229634.268559861
   ]
  },
  "min_20m": {
   "gradient_pct": -12.504511105552751,
   "start_distance_m": 223.0,
   "end_distance_m": 243.0,
   "midpoint_distance_m": 233.0,
   "start_elevation_m": 400.8434250785692,
   "end_elevation_m": 398.3425228574587,
   "start_xy": [
    539054.1446501282,
    6229627.388054992
   ],
   "end_xy": [
    539071.5626008003,
    6229637.217347662
   ]
  },
  "min_25m": {
   "gradient_pct": -11.773050195946553,
   "start_distance_m": 223.0,
   "end_distance_m": 248.0,
   "midpoint_distance_m": 235.5,
   "start_elevation_m": 400.8434250785692,
   "end_elevation_m": 397.9001625295826,
   "start_xy": [
    539054.1446501282,
    6229627.388054992
   ],
   "end_xy": [
    539075.9170884683,
    6229639.674670829
   ]
  },
  "min_50m": {
   "gradient_pct": -8.22269140539106,
   "start_distance_m": 222.0,
   "end_distance_m": 272.0,
   "midpoint_distance_m": 247.0,
   "start_elevation_m": 400.9123226548839,
   "end_elevation_m": 396.80097695218836,
   "start_xy": [
    539053.2737525946,
    6229626.896590359
   ],
   "end_xy": [
    539097.9228479967,
    6229648.871554111
   ]
  },
  "min_100m": {
   "gradient_pct": -1.9088279788821296,
   "start_distance_m": 202.0,
   "end_distance_m": 302.0,
   "midpoint_distance_m": 252.0,
   "start_elevation_m": 399.60909396958175,
   "end_elevation_m": 397.7002659906996,
   "start_xy": [
    539050.7408791385,
    6229607.483389653
   ],
   "end_xy": [
    539126.6706690337,
    6229657.448429162
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.637779558568013,
   "start_distance_m": 953.0,
   "end_distance_m": 955.0,
   "midpoint_distance_m": 954.0,
   "start_elevation_m": 468.6422216563161,
   "end_elevation_m": 469.27497724748747,
   "start_xy": [
    539572.6369332519,
    6230088.081900729
   ],
   "end_xy": [
    539573.4612606629,
    6230089.904120342
   ]
  },
  "max_3m": {
   "gradient_pct": 28.356767891708994,
   "start_distance_m": 953.0,
   "end_distance_m": 956.0,
   "midpoint_distance_m": 954.5,
   "start_elevation_m": 468.6422216563161,
   "end_elevation_m": 469.4929246930674,
   "start_xy": [
    539572.6369332519,
    6230088.081900729
   ],
   "end_xy": [
    539573.8734243684,
    6230090.815230149
   ]
  }
 },
 "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": 0.006,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.458,
   "obstruction_max_height_m": 17.66,
   "flagged_windows_m": [
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    890.0,
    895.0
   ]
  ],
  "review": [],
  "extent": [
   "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-pyr3",
   "road_pbf": "block-batch-fr-pyr3.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": "sha256:79dd257545ed11dc"
  },
  "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_E538-N6229_0m5@22LHD1IR-2025-03-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E539-N6229_0m5@22LHD1IR-2025-03-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E539-N6230_0m5@22LHD1IR-2025-03-20.tif"
  ],
  "calculated_at": "2026-09-20T06:13:49+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr3",
  "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": [
   "E538-N6229",
   "E539-N6229",
   "E539-N6230"
  ],
  "elevation_blocks": [
   "22LHD1IR@2025-03-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0538_6230_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0539_6230_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0539_6231_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD1IR"
  ],
  "ign_editions": [
   "2025-03-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0538_6230_MNT_O_0M50_LAMB93_IGN69": "2025-03-20",
   "LHD_FXX_0539_6230_MNT_O_0M50_LAMB93_IGN69": "2025-03-20",
   "LHD_FXX_0539_6231_MNT_O_0M50_LAMB93_IGN69": "2025-03-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 2,
  "carriageway": {
   "stations": 44,
   "stations_resolved": 44,
   "width_median_m": 4.38,
   "width_p10_m": 2.0,
   "width_min_m": 1.25,
   "width_max_m": 9.75,
   "bounded_share": 0.386,
   "unbounded_share": 0.614,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.5,
   "window_m": [
    915.0,
    940.0
   ],
   "width_at_max25_m": 2.75,
   "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": 44,
    "stations_resolved": 44,
    "width_median_m": 3.75,
    "width_p10_m": 1.25,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.841,
    "unbounded_share": 0.159,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.25,
    "window_m": [
     915.0,
     940.0
    ],
    "width_at_max25_m": 2.12,
    "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": "Ausseing",
  "county": "Haute-Garonne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}