{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (45.9939, 3.7510)",
 "slug": "discovered-lane-45-9939-3-7510",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 42.76821416362964,
   "diagnostic": true,
   "flags": [
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 104.0,
   "end_distance_m": 106.0,
   "start_elevation_m": 590.4628753605609,
   "end_elevation_m": 591.3182396438335,
   "min_gradient_pct": -16.96866284160592,
   "suppressed_max_gradient_pct": 50.72697685621961,
   "suppressed_location_m": [
    140.0,
    142.0
   ],
   "suppressed_min_gradient_pct": -45.11072996173198,
   "suppressed_min_location_m": [
    147.0,
    149.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.54358583866239,
   "diagnostic": true,
   "flags": [
    "no_bench_excluded",
    "no_bench_excluded_min"
   ],
   "start_distance_m": 675.0,
   "end_distance_m": 678.0,
   "start_elevation_m": 669.992792489727,
   "end_elevation_m": 671.1491000648869,
   "min_gradient_pct": -10.209870307312485,
   "suppressed_max_gradient_pct": 45.37580530862139,
   "suppressed_location_m": [
    139.0,
    142.0
   ],
   "suppressed_min_gradient_pct": -35.36177835527875,
   "suppressed_min_location_m": [
    147.0,
    150.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 37.209707159140635,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "no_bench_excluded_min"
   ],
   "start_distance_m": 673.0,
   "end_distance_m": 678.0,
   "start_elevation_m": 669.2886147069298,
   "end_elevation_m": 671.1491000648869,
   "min_gradient_pct": -4.826563741819427,
   "suppressed_max_gradient_pct": 42.76685220635272,
   "suppressed_location_m": [
    139.0,
    144.0
   ],
   "suppressed_min_gradient_pct": -26.506770575942937,
   "suppressed_min_location_m": [
    147.0,
    152.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 30.8636250303789,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "no_bench_excluded_min"
   ],
   "start_distance_m": 670.0,
   "end_distance_m": 680.0,
   "start_elevation_m": 668.4903095986824,
   "end_elevation_m": 671.5766721017203,
   "min_gradient_pct": -4.222164122874119,
   "suppressed_max_gradient_pct": 37.52297642229337,
   "suppressed_location_m": [
    134.0,
    144.0
   ],
   "suppressed_min_gradient_pct": -15.010205585805352,
   "suppressed_min_location_m": [
    144.0,
    154.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.30295560591935,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 660.0,
   "end_distance_m": 680.0,
   "start_elevation_m": 666.9160809805364,
   "end_elevation_m": 671.5766721017203,
   "min_gradient_pct": -1.9434377387938184,
   "suppressed_max_gradient_pct": 32.1913668991175,
   "suppressed_location_m": [
    124.0,
    144.0
   ],
   "suppressed_min_gradient_pct": -4.47962959964002,
   "suppressed_min_location_m": [
    145.0,
    165.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.575229374515402,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 655.0,
   "end_distance_m": 680.0,
   "start_elevation_m": 666.1828647580915,
   "end_elevation_m": 671.5766721017203,
   "min_gradient_pct": -0.9248691506986688,
   "suppressed_max_gradient_pct": 30.27296912473912,
   "suppressed_location_m": [
    120.0,
    145.0
   ],
   "suppressed_min_gradient_pct": -2.307624132141882,
   "suppressed_min_location_m": [
    145.0,
    170.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.09324984806699,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 521.0,
   "end_distance_m": 571.0,
   "start_elevation_m": 646.8916253810003,
   "end_elevation_m": 656.4382503050338,
   "min_gradient_pct": 1.0659420488575506,
   "suppressed_max_gradient_pct": 23.130372887705107,
   "suppressed_location_m": [
    94.0,
    144.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.412335824659408,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded"
   ],
   "start_distance_m": 471.0,
   "end_distance_m": 571.0,
   "start_elevation_m": 640.0259144803744,
   "end_elevation_m": 656.4382503050338,
   "min_gradient_pct": 1.3184896827688135,
   "suppressed_max_gradient_pct": 19.44394778616413,
   "suppressed_location_m": [
    44.0,
    144.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.424,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 202.0,
  "shape_class": "sustained"
 },
 "length_m": 1486.2858390898512,
 "start_elevation_m": 577.4308597460997,
 "end_elevation_m": 702.1148219120748,
 "endpoint_gain_m": 124.68396216597512,
 "overall_gradient_pct": 8.388962532424259,
 "accumulated_ascent_m": 130.15272910833312,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 37.209707159140635,
   "start_distance_m": 673.0,
   "end_distance_m": 678.0,
   "midpoint_distance_m": 675.5,
   "start_elevation_m": 669.2886147069298,
   "end_elevation_m": 671.1491000648869,
   "start_xy": [
    758023.3465546122,
    6543797.603396228
   ],
   "end_xy": [
    758021.0059488921,
    6543793.185074729
   ]
  },
  "max_10m": {
   "gradient_pct": 30.8636250303789,
   "start_distance_m": 670.0,
   "end_distance_m": 680.0,
   "midpoint_distance_m": 675.0,
   "start_elevation_m": 668.4903095986824,
   "end_elevation_m": 671.5766721017203,
   "start_xy": [
    758024.7509180442,
    6543800.254389127
   ],
   "end_xy": [
    758020.069706604,
    6543791.417746129
   ]
  },
  "max_20m": {
   "gradient_pct": 23.30295560591935,
   "start_distance_m": 660.0,
   "end_distance_m": 680.0,
   "midpoint_distance_m": 670.0,
   "start_elevation_m": 666.9160809805364,
   "end_elevation_m": 671.5766721017203,
   "start_xy": [
    758029.2170751789,
    6543809.187063817
   ],
   "end_xy": [
    758020.069706604,
    6543791.417746129
   ]
  },
  "max_25m": {
   "gradient_pct": 21.575229374515402,
   "start_distance_m": 655.0,
   "end_distance_m": 680.0,
   "midpoint_distance_m": 667.5,
   "start_elevation_m": 666.1828647580915,
   "end_elevation_m": 671.5766721017203,
   "start_xy": [
    758030.9446748539,
    6543813.879120868
   ],
   "end_xy": [
    758020.069706604,
    6543791.417746129
   ]
  },
  "max_50m": {
   "gradient_pct": 19.09324984806699,
   "start_distance_m": 521.0,
   "end_distance_m": 571.0,
   "midpoint_distance_m": 546.0,
   "start_elevation_m": 646.8916253810003,
   "end_elevation_m": 656.4382503050338,
   "start_xy": [
    758077.2443461466,
    6543939.6262498135
   ],
   "end_xy": [
    758059.9683493956,
    6543892.705679311
   ]
  },
  "max_100m": {
   "gradient_pct": 16.412335824659408,
   "start_distance_m": 471.0,
   "end_distance_m": 571.0,
   "midpoint_distance_m": 521.0,
   "start_elevation_m": 640.0259144803744,
   "end_elevation_m": 656.4382503050338,
   "start_xy": [
    758094.5203428975,
    6543986.5468203155
   ],
   "end_xy": [
    758059.9683493956,
    6543892.705679311
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.826563741819427,
   "start_distance_m": 1416.0,
   "end_distance_m": 1421.0,
   "midpoint_distance_m": 1418.5,
   "start_elevation_m": 699.6739697859307,
   "end_elevation_m": 699.4326415988397,
   "start_xy": [
    757641.669664062,
    6543237.877370049
   ],
   "end_xy": [
    757636.6907011201,
    6543237.41919102
   ]
  },
  "min_10m": {
   "gradient_pct": -4.222164122874119,
   "start_distance_m": 1412.0,
   "end_distance_m": 1422.0,
   "midpoint_distance_m": 1417.0,
   "start_elevation_m": 699.8214190501542,
   "end_elevation_m": 699.3992026378668,
   "start_xy": [
    757645.6528344154,
    6543238.243913273
   ],
   "end_xy": [
    757635.6949085317,
    6543237.327555213
   ]
  },
  "min_20m": {
   "gradient_pct": -1.9434377387938184,
   "start_distance_m": 1403.0,
   "end_distance_m": 1423.0,
   "midpoint_distance_m": 1413.0,
   "start_elevation_m": 699.7877843553858,
   "end_elevation_m": 699.3990968076271,
   "start_xy": [
    757654.6149677108,
    6543239.068635528
   ],
   "end_xy": [
    757635.6630381467,
    6543237.149445889
   ]
  },
  "min_25m": {
   "gradient_pct": -0.9248691506986688,
   "start_distance_m": 1398.0,
   "end_distance_m": 1423.0,
   "midpoint_distance_m": 1410.5,
   "start_elevation_m": 699.6303140953017,
   "end_elevation_m": 699.3990968076271,
   "start_xy": [
    757659.5970172487,
    6543239.452669704
   ],
   "end_xy": [
    757635.6630381467,
    6543237.149445889
   ]
  },
  "min_50m": {
   "gradient_pct": 1.0659420488575506,
   "start_distance_m": 1138.0,
   "end_distance_m": 1188.0,
   "midpoint_distance_m": 1163.0,
   "start_elevation_m": 690.0344131937342,
   "end_elevation_m": 690.5673842181629,
   "start_xy": [
    757777.4062217582,
    6543428.737978949
   ],
   "end_xy": [
    757767.9084413353,
    6543379.648344941
   ]
  },
  "min_100m": {
   "gradient_pct": 1.3184896827688135,
   "start_distance_m": 1108.0,
   "end_distance_m": 1208.0,
   "midpoint_distance_m": 1158.0,
   "start_elevation_m": 689.6215676617596,
   "end_elevation_m": 690.9400573445284,
   "start_xy": [
    757784.4365826653,
    6543457.898022955
   ],
   "end_xy": [
    757764.1093291661,
    6543360.012491338
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 42.76821416362964,
   "start_distance_m": 104.0,
   "end_distance_m": 106.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 590.4628753605609,
   "end_elevation_m": 591.3182396438335,
   "start_xy": [
    758289.6662941867,
    6544192.20243048
   ],
   "end_xy": [
    758288.311546247,
    6544193.673708163
   ]
  },
  "max_3m": {
   "gradient_pct": 38.54358583866239,
   "start_distance_m": 675.0,
   "end_distance_m": 678.0,
   "midpoint_distance_m": 676.5,
   "start_elevation_m": 669.992792489727,
   "end_elevation_m": 671.1491000648869,
   "start_xy": [
    758022.4103123242,
    6543795.836067628
   ],
   "end_xy": [
    758021.0059488921,
    6543793.185074729
   ]
  }
 },
 "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": 0.014,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.035,
   "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
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.315,
   "obstruction_max_height_m": 34.37,
   "flagged_windows_m": [
    2,
    20,
    25,
    50
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ],
   [
    120.0,
    150.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1",
   "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-mc6",
   "road_pbf": "block-batch-fr-mc6.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:af4eae1f5df9e232"
  },
  "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_E757-N6543_0m5@23LHDMK-2025-01-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E757-N6544_0m5@23LHDMK-2025-01-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E758-N6543_0m5@23LHDMK-2025-01-14.tif",
   "data/cache/fr/ign-lidarhd_dtm_E758-N6544_0m5@23LHDMK-2025-01-14.tif"
  ],
  "calculated_at": "2026-09-22T15:09:10+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc6.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc6",
  "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": [
   "E757-N6543",
   "E757-N6544",
   "E758-N6543",
   "E758-N6544"
  ],
  "elevation_blocks": [
   "23LHDMK@2025-01-14"
  ],
  "ign_dalles": [
   "LHD_FXX_0757_6544_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0757_6545_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0758_6544_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0758_6545_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "23LHDMK"
  ],
  "ign_editions": [
   "2025-01-14"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0757_6544_MNT_O_0M50_LAMB93_IGN69": "2025-01-14",
   "LHD_FXX_0757_6545_MNT_O_0M50_LAMB93_IGN69": "2025-01-14",
   "LHD_FXX_0758_6544_MNT_O_0M50_LAMB93_IGN69": "2025-01-14",
   "LHD_FXX_0758_6545_MNT_O_0M50_LAMB93_IGN69": "2025-01-14"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 7,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "carriageway": {
   "stations": 65,
   "stations_resolved": 65,
   "width_median_m": 5.25,
   "width_p10_m": 2.0,
   "width_min_m": 1.0,
   "width_max_m": 11.0,
   "bounded_share": 0.277,
   "unbounded_share": 0.723,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    655.0,
    680.0
   ],
   "width_at_max25_m": 2.5,
   "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": 65,
    "stations_resolved": 65,
    "width_median_m": 4.75,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.831,
    "unbounded_share": 0.169,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.25,
    "window_m": [
     655.0,
     680.0
    ],
    "width_at_max25_m": 3.12,
    "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": "Laprugne",
  "county": "Allier",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}