{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (42.8118, 2.1689)",
 "slug": "discovered-lane-42-8118-2-1689",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 38.14525273359095,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 186.0,
   "end_distance_m": 188.0,
   "start_elevation_m": 624.0249096656089,
   "end_elevation_m": 624.7878147202807,
   "min_gradient_pct": -31.658423728822527,
   "suppressed_max_gradient_pct": 203.2240971794522,
   "suppressed_location_m": [
    2070.0,
    2072.0
   ],
   "suppressed_min_gradient_pct": -105.35581956667102,
   "suppressed_min_location_m": [
    2056.0,
    2058.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.62023613780244,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 184.0,
   "end_distance_m": 187.0,
   "start_elevation_m": 623.2799855625749,
   "end_elevation_m": 624.378592646709,
   "min_gradient_pct": -19.44146496970613,
   "suppressed_max_gradient_pct": 200.1430928898344,
   "suppressed_location_m": [
    2069.0,
    2072.0
   ],
   "suppressed_min_gradient_pct": -101.40361003060434,
   "suppressed_min_location_m": [
    2055.0,
    2058.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 36.20241685223391,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 184.0,
   "end_distance_m": 189.0,
   "start_elevation_m": 623.2799855625749,
   "end_elevation_m": 625.0901064051866,
   "min_gradient_pct": -13.13867135783994,
   "suppressed_max_gradient_pct": 170.29490990882096,
   "suppressed_location_m": [
    2069.0,
    2074.0
   ],
   "suppressed_min_gradient_pct": -93.88173443821643,
   "suppressed_min_location_m": [
    2055.0,
    2060.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 19.74688613071862,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 181.0,
   "end_distance_m": 191.0,
   "start_elevation_m": 623.1225196963493,
   "end_elevation_m": 625.0972083094211,
   "min_gradient_pct": -5.297031807697294,
   "suppressed_max_gradient_pct": 93.80770459017413,
   "suppressed_location_m": [
    2068.0,
    2078.0
   ],
   "suppressed_min_gradient_pct": -75.94626837958344,
   "suppressed_min_location_m": [
    2053.0,
    2063.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 13.998097312786513,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 2491.0,
   "end_distance_m": 2511.0,
   "start_elevation_m": 827.3707149348227,
   "end_elevation_m": 830.17033439738,
   "min_gradient_pct": -0.06709460378488075,
   "suppressed_max_gradient_pct": 52.09942983087217,
   "suppressed_location_m": [
    2068.0,
    2088.0
   ],
   "suppressed_min_gradient_pct": -35.01065417771201,
   "suppressed_min_location_m": [
    2044.0,
    2064.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 13.49195095947971,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 2489.0,
   "end_distance_m": 2514.0,
   "start_elevation_m": 827.1254986846897,
   "end_elevation_m": 830.4984864245596,
   "min_gradient_pct": 1.125876768771377,
   "suppressed_max_gradient_pct": 44.08961600990824,
   "suppressed_location_m": [
    2068.0,
    2093.0
   ],
   "suppressed_min_gradient_pct": -26.55350306229866,
   "suppressed_min_location_m": [
    2043.0,
    2068.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 11.883959035769522,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 3086.0,
   "end_distance_m": 3136.0,
   "start_elevation_m": 874.018204065604,
   "end_elevation_m": 879.9601835834887,
   "min_gradient_pct": 2.319789036380598,
   "suppressed_max_gradient_pct": 27.449921747948338,
   "suppressed_location_m": [
    2068.0,
    2118.0
   ],
   "suppressed_min_gradient_pct": -8.385317807428692,
   "suppressed_min_location_m": [
    2018.0,
    2068.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 10.821496417036315,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1928.0,
   "end_distance_m": 2028.0,
   "start_elevation_m": 775.2066184908015,
   "end_elevation_m": 786.0281149078378,
   "min_gradient_pct": 3.4310203338211522,
   "suppressed_max_gradient_pct": 18.497360863321205,
   "suppressed_location_m": [
    2068.0,
    2168.0
   ],
   "suppressed_min_gradient_pct": 1.039415974833446,
   "suppressed_min_location_m": [
    1968.0,
    2068.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.326,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 69.0,
  "shape_class": "sustained"
 },
 "length_m": 7249.713401737429,
 "start_elevation_m": 608.2427566402349,
 "end_elevation_m": 1132.5879192968605,
 "endpoint_gain_m": 524.3451626566256,
 "overall_gradient_pct": 7.232632982856448,
 "accumulated_ascent_m": 542.0246783166882,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 36.20241685223391,
   "start_distance_m": 184.0,
   "end_distance_m": 189.0,
   "midpoint_distance_m": 186.5,
   "start_elevation_m": 623.2799855625749,
   "end_elevation_m": 625.0901064051866,
   "start_xy": [
    634395.9886480914,
    6190076.255153752
   ],
   "end_xy": [
    634396.9128672115,
    6190081.074343075
   ]
  },
  "max_10m": {
   "gradient_pct": 19.74688613071862,
   "start_distance_m": 181.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 186.0,
   "start_elevation_m": 623.1225196963493,
   "end_elevation_m": 625.0972083094211,
   "start_xy": [
    634394.9714606288,
    6190073.43286219
   ],
   "end_xy": [
    634396.8151342331,
    6190083.071953714
   ]
  },
  "max_20m": {
   "gradient_pct": 13.998097312786513,
   "start_distance_m": 2491.0,
   "end_distance_m": 2511.0,
   "midpoint_distance_m": 2501.0,
   "start_elevation_m": 827.3707149348227,
   "end_elevation_m": 830.17033439738,
   "start_xy": [
    632911.1310362766,
    6190283.54509652
   ],
   "end_xy": [
    632893.0607922692,
    6190285.972942742
   ]
  },
  "max_25m": {
   "gradient_pct": 13.49195095947971,
   "start_distance_m": 2489.0,
   "end_distance_m": 2514.0,
   "midpoint_distance_m": 2501.5,
   "start_elevation_m": 827.1254986846897,
   "end_elevation_m": 830.4984864245596,
   "start_xy": [
    632912.5448478567,
    6190282.13048109
   ],
   "end_xy": [
    632890.3995224518,
    6190284.588152881
   ]
  },
  "max_50m": {
   "gradient_pct": 11.883959035769522,
   "start_distance_m": 3086.0,
   "end_distance_m": 3136.0,
   "midpoint_distance_m": 3111.0,
   "start_elevation_m": 874.018204065604,
   "end_elevation_m": 879.9601835834887,
   "start_xy": [
    632782.27988173,
    6190303.72546036
   ],
   "end_xy": [
    632786.6514447061,
    6190352.648162556
   ]
  },
  "max_100m": {
   "gradient_pct": 10.821496417036315,
   "start_distance_m": 1928.0,
   "end_distance_m": 2028.0,
   "midpoint_distance_m": 1978.0,
   "start_elevation_m": 775.2066184908015,
   "end_elevation_m": 786.0281149078378,
   "start_xy": [
    633227.4948645706,
    6190024.382343991
   ],
   "end_xy": [
    633154.5017087806,
    6189958.305960855
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.13867135783994,
   "start_distance_m": 1923.0,
   "end_distance_m": 1928.0,
   "midpoint_distance_m": 1925.5,
   "start_elevation_m": 775.8635520586935,
   "end_elevation_m": 775.2066184908015,
   "start_xy": [
    633232.4907812584,
    6190024.180313184
   ],
   "end_xy": [
    633227.4948645706,
    6190024.382343991
   ]
  },
  "min_10m": {
   "gradient_pct": -5.297031807697294,
   "start_distance_m": 6703.0,
   "end_distance_m": 6713.0,
   "midpoint_distance_m": 6708.0,
   "start_elevation_m": 1100.062526794509,
   "end_elevation_m": 1099.5328236137393,
   "start_xy": [
    631589.0192122813,
    6189558.986090758
   ],
   "end_xy": [
    631580.5120295164,
    6189553.729871451
   ]
  },
  "min_20m": {
   "gradient_pct": -0.06709460378488075,
   "start_distance_m": 6703.0,
   "end_distance_m": 6723.0,
   "midpoint_distance_m": 6713.0,
   "start_elevation_m": 1100.062526794509,
   "end_elevation_m": 1100.049107873752,
   "start_xy": [
    631589.0192122813,
    6189558.986090758
   ],
   "end_xy": [
    631572.0048467515,
    6189548.473652143
   ]
  },
  "min_25m": {
   "gradient_pct": 1.125876768771377,
   "start_distance_m": 6702.0,
   "end_distance_m": 6727.0,
   "midpoint_distance_m": 6714.5,
   "start_elevation_m": 1099.9982168086867,
   "end_elevation_m": 1100.2796860008796,
   "start_xy": [
    631589.8699305578,
    6189559.511712688
   ],
   "end_xy": [
    631568.6019736455,
    6189546.371164421
   ]
  },
  "min_50m": {
   "gradient_pct": 2.319789036380598,
   "start_distance_m": 4730.0,
   "end_distance_m": 4780.0,
   "midpoint_distance_m": 4755.0,
   "start_elevation_m": 996.8181283621084,
   "end_elevation_m": 997.9780228802987,
   "start_xy": [
    631652.3685283642,
    6190539.25646979
   ],
   "end_xy": [
    631626.2096654795,
    6190497.091924905
   ]
  },
  "min_100m": {
   "gradient_pct": 3.4310203338211522,
   "start_distance_m": 4712.0,
   "end_distance_m": 4812.0,
   "midpoint_distance_m": 4762.0,
   "start_elevation_m": 995.7884436456607,
   "end_elevation_m": 999.2194639794818,
   "start_xy": [
    631669.6073808701,
    6190544.0770766
   ],
   "end_xy": [
    631610.6627314739,
    6190469.122512295
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 38.14525273359095,
   "start_distance_m": 186.0,
   "end_distance_m": 188.0,
   "midpoint_distance_m": 187.0,
   "start_elevation_m": 624.0249096656089,
   "end_elevation_m": 624.7878147202807,
   "start_xy": [
    634396.6667730666,
    6190078.136681461
   ],
   "end_xy": [
    634396.9617337006,
    6190080.075537755
   ]
  },
  "max_3m": {
   "gradient_pct": 36.62023613780244,
   "start_distance_m": 184.0,
   "end_distance_m": 187.0,
   "midpoint_distance_m": 185.5,
   "start_elevation_m": 623.2799855625749,
   "end_elevation_m": 624.378592646709,
   "start_xy": [
    634395.9886480914,
    6190076.255153752
   ],
   "end_xy": [
    634397.0058355541,
    6190079.077445315
   ]
  }
 },
 "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": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.022,
   "windows_resited": [
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0
   ],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.03,
   "windows_resited": [
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 1799.0,
     "end_m": 1824.0,
     "raw_pct": 18.13,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 1798.0,
     "end_m": 1818.0,
     "raw_pct": 20.36,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 1803.0,
     "end_m": 1813.0,
     "raw_pct": 26.33,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 2349.0,
     "end_m": 2374.0,
     "raw_pct": 17.5,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 2349.0,
     "end_m": 2369.0,
     "raw_pct": 18.24,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.208,
   "obstruction_max_height_m": 21.55,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    3.0
   ],
   [
    1700.0,
    1790.0
   ],
   [
    1796.0,
    1826.0
   ],
   [
    2047.0,
    2078.0
   ],
   [
    2347.0,
    2376.0
   ],
   [
    2380.0,
    2410.0
   ]
  ],
  "review": [
   "short_window_divergence"
  ],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "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-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_E631-N6189_0m5@21LHD3JR2-2025-04-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E631-N6190_0m5@21LHD3JR2-2025-04-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E632-N6189_0m5@21LHD3JR2-2025-04-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E632-N6190_0m5@21LHD3JR2-2025-04-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E633-N6189_0m5@21LHD3JR2-2025-04-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E633-N6190_0m5@21LHD3JR2-2025-04-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E634-N6189_0m5@21LHD3JR2-2025-04-11.tif",
   "data/cache/fr/ign-lidarhd_dtm_E634-N6190_0m5@21LHD3JR2-2025-04-11.tif"
  ],
  "calculated_at": "2026-09-20T09:40:04+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": [
   "E631-N6189",
   "E631-N6190",
   "E632-N6189",
   "E632-N6190",
   "E633-N6189",
   "E633-N6190",
   "E634-N6189",
   "E634-N6190"
  ],
  "elevation_blocks": [
   "21LHD3JR2@2025-04-11"
  ],
  "ign_dalles": [
   "LHD_FXX_0631_6190_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0631_6191_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0632_6190_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0632_6191_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0633_6190_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0633_6191_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0634_6190_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0634_6191_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD3JR2"
  ],
  "ign_editions": [
   "2025-04-11"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0631_6190_MNT_O_0M50_LAMB93_IGN69": "2025-04-11",
   "LHD_FXX_0631_6191_MNT_O_0M50_LAMB93_IGN69": "2025-04-11",
   "LHD_FXX_0632_6190_MNT_O_0M50_LAMB93_IGN69": "2025-04-11",
   "LHD_FXX_0632_6191_MNT_O_0M50_LAMB93_IGN69": "2025-04-11",
   "LHD_FXX_0633_6190_MNT_O_0M50_LAMB93_IGN69": "2025-04-11",
   "LHD_FXX_0633_6191_MNT_O_0M50_LAMB93_IGN69": "2025-04-11",
   "LHD_FXX_0634_6190_MNT_O_0M50_LAMB93_IGN69": "2025-04-11",
   "LHD_FXX_0634_6191_MNT_O_0M50_LAMB93_IGN69": "2025-04-11"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "structure_mask_ranges_m": [
   [
    2052.4,
    2072.9
   ]
  ],
  "carriageway": {
   "stations": 296,
   "stations_resolved": 296,
   "width_median_m": 5.25,
   "width_p10_m": 3.0,
   "width_min_m": 1.0,
   "width_max_m": 10.0,
   "bounded_share": 0.53,
   "unbounded_share": 0.47,
   "confidence_median": 0.57,
   "width_median_bounded_m": 5.25,
   "window_m": [
    2489.0,
    2514.0
   ],
   "width_at_max25_m": 6.5,
   "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": 296,
    "stations_resolved": 296,
    "width_median_m": 4.75,
    "width_p10_m": 1.0,
    "width_min_m": 0.0,
    "width_max_m": 12.0,
    "bounded_share": 0.936,
    "unbounded_share": 0.064,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.5,
    "window_m": [
     2489.0,
     2514.0
    ],
    "width_at_max25_m": 9.5,
    "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": "Cailla",
  "county": "Aude",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}