{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (42.6418, 2.4126)",
 "slug": "discovered-lane-42-6418-2-4126",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 14.236956897968867,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 8207.0,
   "end_distance_m": 8209.0,
   "start_elevation_m": 830.0894507780187,
   "end_elevation_m": 830.374189915978,
   "min_gradient_pct": -5.3665266107287835,
   "suppressed_max_gradient_pct": 155.2742547062678,
   "suppressed_location_m": [
    4128.0,
    4130.0
   ],
   "suppressed_min_gradient_pct": -103.13995110374208,
   "suppressed_min_location_m": [
    4118.0,
    4120.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 13.179230205510825,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 8206.0,
   "end_distance_m": 8209.0,
   "start_elevation_m": 829.9788130098127,
   "end_elevation_m": 830.374189915978,
   "min_gradient_pct": -3.025803601745262,
   "suppressed_max_gradient_pct": 155.27341745635871,
   "suppressed_location_m": [
    4127.0,
    4130.0
   ],
   "suppressed_min_gradient_pct": -100.29565221710754,
   "suppressed_min_location_m": [
    4118.0,
    4121.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 12.345386972529013,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 8204.0,
   "end_distance_m": 8209.0,
   "start_elevation_m": 829.7569205673516,
   "end_elevation_m": 830.374189915978,
   "min_gradient_pct": -0.6242591948841891,
   "suppressed_max_gradient_pct": 152.4018750659252,
   "suppressed_location_m": [
    4126.0,
    4131.0
   ],
   "suppressed_min_gradient_pct": -98.15321523895136,
   "suppressed_min_location_m": [
    4118.0,
    4123.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 11.45855290902091,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 7844.0,
   "end_distance_m": 7854.0,
   "start_elevation_m": 804.444642095978,
   "end_elevation_m": 805.5904973868801,
   "min_gradient_pct": -0.15346692548348528,
   "suppressed_max_gradient_pct": 115.20116777140402,
   "suppressed_location_m": [
    4125.0,
    4135.0
   ],
   "suppressed_min_gradient_pct": -82.0396136424074,
   "suppressed_min_location_m": [
    4114.0,
    4124.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 10.653888002290728,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 8200.0,
   "end_distance_m": 8220.0,
   "start_elevation_m": 829.3600243821153,
   "end_elevation_m": 831.4908019825734,
   "min_gradient_pct": 0.1728198067195308,
   "suppressed_max_gradient_pct": 60.602310498895804,
   "suppressed_location_m": [
    4125.0,
    4145.0
   ],
   "suppressed_min_gradient_pct": -47.61093885878722,
   "suppressed_min_location_m": [
    4105.0,
    4125.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 10.397639242320565,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 8196.0,
   "end_distance_m": 8221.0,
   "start_elevation_m": 828.9743585188618,
   "end_elevation_m": 831.5737683294419,
   "min_gradient_pct": 0.341921875899061,
   "suppressed_max_gradient_pct": 49.41399971628107,
   "suppressed_location_m": [
    4125.0,
    4150.0
   ],
   "suppressed_min_gradient_pct": -36.831913833594626,
   "suppressed_min_location_m": [
    4100.0,
    4125.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 9.643781388671641,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 7807.0,
   "end_distance_m": 7857.0,
   "start_elevation_m": 801.0466334086389,
   "end_elevation_m": 805.8685241029747,
   "min_gradient_pct": 0.6248828282734848,
   "suppressed_max_gradient_pct": 26.19970676242383,
   "suppressed_location_m": [
    4125.0,
    4175.0
   ],
   "suppressed_min_gradient_pct": -15.297524466193863,
   "suppressed_min_location_m": [
    4075.0,
    4125.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 8.916851112914173,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 5965.0,
   "end_distance_m": 6065.0,
   "start_elevation_m": 690.6707416697038,
   "end_elevation_m": 699.587592782618,
   "min_gradient_pct": 0.8454579201466004,
   "suppressed_max_gradient_pct": 15.196362442504437,
   "suppressed_location_m": [
    4125.0,
    4225.0
   ],
   "suppressed_min_gradient_pct": -4.746927049361943,
   "suppressed_min_location_m": [
    4025.0,
    4125.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.279,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 26.0,
  "shape_class": "sustained"
 },
 "length_m": 8971.482296756201,
 "start_elevation_m": 363.8679636913016,
 "end_elevation_m": 882.0614709545882,
 "endpoint_gain_m": 518.1935072632866,
 "overall_gradient_pct": 5.776007688836979,
 "accumulated_ascent_m": 528.4375268623289,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 12.345386972529013,
   "start_distance_m": 8204.0,
   "end_distance_m": 8209.0,
   "midpoint_distance_m": 8206.5,
   "start_elevation_m": 829.7569205673516,
   "end_elevation_m": 830.374189915978,
   "start_xy": [
    652635.1696728116,
    6174682.844595367
   ],
   "end_xy": [
    652639.5220102202,
    6174680.3834657315
   ]
  },
  "max_10m": {
   "gradient_pct": 11.45855290902091,
   "start_distance_m": 7844.0,
   "end_distance_m": 7854.0,
   "midpoint_distance_m": 7849.0,
   "start_elevation_m": 804.444642095978,
   "end_elevation_m": 805.5904973868801,
   "start_xy": [
    652520.9027780353,
    6174480.600950719
   ],
   "end_xy": [
    652521.1049564538,
    6174490.463573115
   ]
  },
  "max_20m": {
   "gradient_pct": 10.653888002290728,
   "start_distance_m": 8200.0,
   "end_distance_m": 8220.0,
   "midpoint_distance_m": 8210.0,
   "start_elevation_m": 829.3600243821153,
   "end_elevation_m": 831.4908019825734,
   "start_xy": [
    652631.5116793166,
    6174684.39308805
   ],
   "end_xy": [
    652646.9575764019,
    6174672.406277186
   ]
  },
  "max_25m": {
   "gradient_pct": 10.397639242320565,
   "start_distance_m": 8196.0,
   "end_distance_m": 8221.0,
   "midpoint_distance_m": 8208.5,
   "start_elevation_m": 828.9743585188618,
   "end_elevation_m": 831.5737683294419,
   "start_xy": [
    652627.666127499,
    6174685.493874686
   ],
   "end_xy": [
    652647.3500865727,
    6174671.49608728
   ]
  },
  "max_50m": {
   "gradient_pct": 9.643781388671641,
   "start_distance_m": 7807.0,
   "end_distance_m": 7857.0,
   "midpoint_distance_m": 7832.0,
   "start_elevation_m": 801.0466334086389,
   "end_elevation_m": 805.8685241029747,
   "start_xy": [
    652503.5001740234,
    6174448.161392702
   ],
   "end_xy": [
    652520.5095818945,
    6174493.403901181
   ]
  },
  "max_100m": {
   "gradient_pct": 8.916851112914173,
   "start_distance_m": 5965.0,
   "end_distance_m": 6065.0,
   "midpoint_distance_m": 6015.0,
   "start_elevation_m": 690.6707416697038,
   "end_elevation_m": 699.587592782618,
   "start_xy": [
    652566.7781944842,
    6173178.197682292
   ],
   "end_xy": [
    652588.1125382588,
    6173273.71916755
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.6242591948841891,
   "start_distance_m": 2178.0,
   "end_distance_m": 2183.0,
   "midpoint_distance_m": 2180.5,
   "start_elevation_m": 491.3417653291913,
   "end_elevation_m": 491.31055236944707,
   "start_xy": [
    651846.3127973592,
    6171537.208154804
   ],
   "end_xy": [
    651850.980387232,
    6171535.423229597
   ]
  },
  "min_10m": {
   "gradient_pct": -0.15346692548348528,
   "start_distance_m": 2179.0,
   "end_distance_m": 2189.0,
   "midpoint_distance_m": 2184.0,
   "start_elevation_m": 491.3506956997245,
   "end_elevation_m": 491.33534900717615,
   "start_xy": [
    651847.2221791813,
    6171536.792192424
   ],
   "end_xy": [
    651856.6209320633,
    6171533.37768468
   ]
  },
  "min_20m": {
   "gradient_pct": 0.1728198067195308,
   "start_distance_m": 2176.0,
   "end_distance_m": 2196.0,
   "midpoint_distance_m": 2186.0,
   "start_elevation_m": 491.33252590212845,
   "end_elevation_m": 491.36708986347236,
   "start_xy": [
    651844.4940337151,
    6171538.040079565
   ],
   "end_xy": [
    651863.2015676997,
    6171530.99121561
   ]
  },
  "min_25m": {
   "gradient_pct": 0.341921875899061,
   "start_distance_m": 2171.0,
   "end_distance_m": 2196.0,
   "midpoint_distance_m": 2183.5,
   "start_elevation_m": 491.2816093944976,
   "end_elevation_m": 491.36708986347236,
   "start_xy": [
    651839.947124605,
    6171540.119891466
   ],
   "end_xy": [
    651863.2015676997,
    6171530.99121561
   ]
  },
  "min_50m": {
   "gradient_pct": 0.6248828282734848,
   "start_distance_m": 2164.0,
   "end_distance_m": 2214.0,
   "midpoint_distance_m": 2189.0,
   "start_elevation_m": 491.22343806375113,
   "end_elevation_m": 491.5358794778879,
   "start_xy": [
    651833.5814518507,
    6171543.031628127
   ],
   "end_xy": [
    651880.4215510744,
    6171525.821461287
   ]
  },
  "min_100m": {
   "gradient_pct": 0.8454579201466004,
   "start_distance_m": 2145.0,
   "end_distance_m": 2245.0,
   "midpoint_distance_m": 2195.0,
   "start_elevation_m": 491.0258206204586,
   "end_elevation_m": 491.8712785406052,
   "start_xy": [
    651816.5313866261,
    6171551.413669184
   ],
   "end_xy": [
    651910.4689611159,
    6171518.196476285
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 14.236956897968867,
   "start_distance_m": 8207.0,
   "end_distance_m": 8209.0,
   "midpoint_distance_m": 8208.0,
   "start_elevation_m": 830.0894507780187,
   "end_elevation_m": 830.374189915978,
   "start_xy": [
    652637.7810752568,
    6174681.367917585
   ],
   "end_xy": [
    652639.5220102202,
    6174680.3834657315
   ]
  },
  "max_3m": {
   "gradient_pct": 13.179230205510825,
   "start_distance_m": 8206.0,
   "end_distance_m": 8209.0,
   "midpoint_distance_m": 8207.5,
   "start_elevation_m": 829.9788130098127,
   "end_elevation_m": 830.374189915978,
   "start_xy": [
    652636.9106077751,
    6174681.8601435125
   ],
   "end_xy": [
    652639.5220102202,
    6174680.3834657315
   ]
  }
 },
 "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": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.011,
   "obstruction_max_height_m": 11.75,
   "flagged_windows_m": [
    20,
    25
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ],
   [
    4107.0,
    4137.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "937d2a005af5491e462567d7f33ab563f033918b",
   "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-pyr4",
   "road_pbf": "block-batch-fr-pyr4.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_E651-N6170_0m5@21LHD3KS-2025-05-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E651-N6171_0m5@21LHD3KS-2025-05-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E651-N6172_0m5@21LHD3KS-2025-05-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E652-N6170_0m5@21LHD3KS-2025-05-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E652-N6171_0m5@21LHD3KS-2025-05-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E652-N6172_0m5@21LHD3KS-2025-05-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E652-N6173_0m5@21LHD3KS-2025-05-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E652-N6174_0m5@21LHD3KS-2025-05-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E653-N6174_0m5@21LHD3KS-2025-05-20.tif"
  ],
  "calculated_at": "2026-09-20T08:47:51+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr4",
  "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": [
   "E651-N6170",
   "E651-N6171",
   "E651-N6172",
   "E652-N6170",
   "E652-N6171",
   "E652-N6172",
   "E652-N6173",
   "E652-N6174",
   "E653-N6174"
  ],
  "elevation_blocks": [
   "21LHD3KS@2025-05-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0651_6171_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0651_6172_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0651_6173_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0652_6171_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0652_6172_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0652_6173_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0652_6174_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0652_6175_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0653_6175_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD3KS"
  ],
  "ign_editions": [
   "2025-05-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0651_6171_MNT_O_0M50_LAMB93_IGN69": "2025-05-20",
   "LHD_FXX_0651_6172_MNT_O_0M50_LAMB93_IGN69": "2025-05-20",
   "LHD_FXX_0651_6173_MNT_O_0M50_LAMB93_IGN69": "2025-05-20",
   "LHD_FXX_0652_6171_MNT_O_0M50_LAMB93_IGN69": "2025-05-20",
   "LHD_FXX_0652_6172_MNT_O_0M50_LAMB93_IGN69": "2025-05-20",
   "LHD_FXX_0652_6173_MNT_O_0M50_LAMB93_IGN69": "2025-05-20",
   "LHD_FXX_0652_6174_MNT_O_0M50_LAMB93_IGN69": "2025-05-20",
   "LHD_FXX_0652_6175_MNT_O_0M50_LAMB93_IGN69": "2025-05-20",
   "LHD_FXX_0653_6175_MNT_O_0M50_LAMB93_IGN69": "2025-05-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 5,
  "structure_mask_ranges_m": [
   [
    4122.6,
    4130.1
   ],
   [
    0.0,
    15.0
   ]
  ],
  "mask_basin_extension_m": 5.0,
  "carriageway": {
   "stations": 365,
   "stations_resolved": 365,
   "width_median_m": 5.75,
   "width_p10_m": 4.75,
   "width_min_m": 2.75,
   "width_max_m": 11.25,
   "bounded_share": 0.605,
   "unbounded_share": 0.395,
   "confidence_median": 0.656,
   "width_median_bounded_m": 5.5,
   "window_m": [
    8196.0,
    8221.0
   ],
   "width_at_max25_m": 5.5,
   "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": 365,
    "stations_resolved": 365,
    "width_median_m": 7.25,
    "width_p10_m": 5.5,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.907,
    "unbounded_share": 0.093,
    "confidence_median": 1.0,
    "width_median_bounded_m": 7.0,
    "window_m": [
     8196.0,
     8221.0
    ],
    "width_at_max25_m": 6.0,
    "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": "Catllar",
  "county": "Pyr\u00e9n\u00e9es-Orientales",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}