{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.3587, 6.3714)",
 "slug": "discovered-lane-47-3587-6-3714",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.91311189028329,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 130.0,
   "end_distance_m": 132.0,
   "start_elevation_m": 299.70460397759155,
   "end_elevation_m": 300.1828662153972,
   "min_gradient_pct": -3.8288065408835337
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.513113629885158,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 154.0,
   "end_distance_m": 157.0,
   "start_elevation_m": 303.9512523177912,
   "end_elevation_m": 304.65664572668777,
   "min_gradient_pct": -3.239069095703447
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.808161970569927,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 154.0,
   "end_distance_m": 159.0,
   "start_elevation_m": 303.9512523177912,
   "end_elevation_m": 305.0916604163197,
   "min_gradient_pct": -1.4617256503527187
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.290177998982585,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 149.0,
   "end_distance_m": 159.0,
   "start_elevation_m": 302.86264261642145,
   "end_elevation_m": 305.0916604163197,
   "min_gradient_pct": 1.0840350733474224
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.793091638384396,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 113.0,
   "end_distance_m": 133.0,
   "start_elevation_m": 296.04663593031336,
   "end_elevation_m": 300.40525425799024,
   "min_gradient_pct": 2.649547998293258
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.68327633808076,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 108.0,
   "end_distance_m": 133.0,
   "start_elevation_m": 294.98443517347005,
   "end_elevation_m": 300.40525425799024,
   "min_gradient_pct": 3.0742348265087003
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.348605206408138,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 84.0,
   "end_distance_m": 134.0,
   "start_elevation_m": 289.9275046179645,
   "end_elevation_m": 300.60180722116854,
   "min_gradient_pct": 3.8685046115697332
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.869424664391943,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 68.0,
   "end_distance_m": 168.0,
   "start_elevation_m": 287.09134934275033,
   "end_elevation_m": 306.9607740071423,
   "min_gradient_pct": 4.577115362267534
  }
 ],
 "shape": {
  "ascent_concentration": 0.361,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 126.0,
  "shape_class": "sustained"
 },
 "length_m": 2162.5512657430595,
 "start_elevation_m": 281.70181079102315,
 "end_elevation_m": 431.08066345456416,
 "endpoint_gain_m": 149.378852663541,
 "overall_gradient_pct": 6.907528853990611,
 "accumulated_ascent_m": 149.48405293475304,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.808161970569927,
   "start_distance_m": 154.0,
   "end_distance_m": 159.0,
   "midpoint_distance_m": 156.5,
   "start_elevation_m": 303.9512523177912,
   "end_elevation_m": 305.0916604163197,
   "start_xy": [
    953854.7230723621,
    6700025.816765988
   ],
   "end_xy": [
    953858.0706388599,
    6700029.530766331
   ]
  },
  "max_10m": {
   "gradient_pct": 22.290177998982585,
   "start_distance_m": 149.0,
   "end_distance_m": 159.0,
   "midpoint_distance_m": 154.0,
   "start_elevation_m": 302.86264261642145,
   "end_elevation_m": 305.0916604163197,
   "start_xy": [
    953851.3755058645,
    6700022.102765646
   ],
   "end_xy": [
    953858.0706388599,
    6700029.530766331
   ]
  },
  "max_20m": {
   "gradient_pct": 21.793091638384396,
   "start_distance_m": 113.0,
   "end_distance_m": 133.0,
   "midpoint_distance_m": 123.0,
   "start_elevation_m": 296.04663593031336,
   "end_elevation_m": 300.40525425799024,
   "start_xy": [
    953824.955471845,
    6700029.618657114
   ],
   "end_xy": [
    953839.726919268,
    6700016.2071961425
   ]
  },
  "max_25m": {
   "gradient_pct": 21.68327633808076,
   "start_distance_m": 108.0,
   "end_distance_m": 133.0,
   "midpoint_distance_m": 120.5,
   "start_elevation_m": 294.98443517347005,
   "end_elevation_m": 300.40525425799024,
   "start_xy": [
    953821.3319727676,
    6700033.063980674
   ],
   "end_xy": [
    953839.726919268,
    6700016.2071961425
   ]
  },
  "max_50m": {
   "gradient_pct": 21.348605206408138,
   "start_distance_m": 84.0,
   "end_distance_m": 134.0,
   "midpoint_distance_m": 109.0,
   "start_elevation_m": 289.9275046179645,
   "end_elevation_m": 300.60180722116854,
   "start_xy": [
    953803.9391771965,
    6700049.601533765
   ],
   "end_xy": [
    953840.5912047941,
    6700015.704194622
   ]
  },
  "max_100m": {
   "gradient_pct": 19.869424664391943,
   "start_distance_m": 68.0,
   "end_distance_m": 168.0,
   "midpoint_distance_m": 118.0,
   "start_elevation_m": 287.09134934275033,
   "end_elevation_m": 306.9607740071423,
   "start_xy": [
    953792.100084474,
    6700060.356665151
   ],
   "end_xy": [
    953864.4570904783,
    6700035.7842984805
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.4617256503527187,
   "start_distance_m": 360.0,
   "end_distance_m": 365.0,
   "midpoint_distance_m": 362.5,
   "start_elevation_m": 324.5722910410002,
   "end_elevation_m": 324.49920475848256,
   "start_xy": [
    954012.3728777573,
    6700036.594342959
   ],
   "end_xy": [
    954016.1971483681,
    6700039.747190792
   ]
  },
  "min_10m": {
   "gradient_pct": 1.0840350733474224,
   "start_distance_m": 358.0,
   "end_distance_m": 368.0,
   "midpoint_distance_m": 363.0,
   "start_elevation_m": 324.5070036157862,
   "end_elevation_m": 324.6154071231209,
   "start_xy": [
    954010.819033748,
    6700035.335149251
   ],
   "end_xy": [
    954014.1989928667,
    6700041.984907171
   ]
  },
  "min_20m": {
   "gradient_pct": 2.649547998293258,
   "start_distance_m": 355.0,
   "end_distance_m": 375.0,
   "midpoint_distance_m": 365.0,
   "start_elevation_m": 324.38085310184465,
   "end_elevation_m": 324.9107627015033,
   "start_xy": [
    954008.1276204122,
    6700034.091873713
   ],
   "end_xy": [
    954009.6554627116,
    6700047.309409791
   ]
  },
  "min_25m": {
   "gradient_pct": 3.0742348265087003,
   "start_distance_m": 355.0,
   "end_distance_m": 380.0,
   "midpoint_distance_m": 367.5,
   "start_elevation_m": 324.38085310184465,
   "end_elevation_m": 325.1494118084718,
   "start_xy": [
    954008.1276204122,
    6700034.091873713
   ],
   "end_xy": [
    954006.522813708,
    6700051.198443539
   ]
  },
  "min_50m": {
   "gradient_pct": 3.8685046115697332,
   "start_distance_m": 355.0,
   "end_distance_m": 405.0,
   "midpoint_distance_m": 380.0,
   "start_elevation_m": 324.38085310184465,
   "end_elevation_m": 326.3151054076295,
   "start_xy": [
    954008.1276204122,
    6700034.091873713
   ],
   "end_xy": [
    953995.0393039203,
    6700073.323532254
   ]
  },
  "min_100m": {
   "gradient_pct": 4.577115362267534,
   "start_distance_m": 355.0,
   "end_distance_m": 455.0,
   "midpoint_distance_m": 405.0,
   "start_elevation_m": 324.38085310184465,
   "end_elevation_m": 328.9579684641122,
   "start_xy": [
    954008.1276204122,
    6700034.091873713
   ],
   "end_xy": [
    953978.2839118222,
    6700120.426586127
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.91311189028329,
   "start_distance_m": 130.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 131.0,
   "start_elevation_m": 299.70460397759155,
   "end_elevation_m": 300.1828662153972,
   "start_xy": [
    953837.2753687078,
    6700017.904557008
   ],
   "end_xy": [
    953838.8626337419,
    6700016.710197663
   ]
  },
  "max_3m": {
   "gradient_pct": 23.513113629885158,
   "start_distance_m": 154.0,
   "end_distance_m": 157.0,
   "midpoint_distance_m": 155.5,
   "start_elevation_m": 303.9512523177912,
   "end_elevation_m": 304.65664572668777,
   "start_xy": [
    953854.7230723621,
    6700025.816765988
   ],
   "end_xy": [
    953856.7316122608,
    6700028.0451661935
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.001,
   "obstruction_max_height_m": 5.59,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "c4fd6b4a89a9718922c7ed8acdf14e43dcf75a33",
   "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-ju4",
   "road_pbf": "block-batch-fr-ju4.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": "sha256:78945c7930496bfe"
  },
  "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_E953-N6699_0m5@22LHD2QH2-2025-05-22.tif",
   "data/cache/fr/ign-lidarhd_dtm_E953-N6700_0m5@22LHD2QH2-2025-05-22.tif",
   "data/cache/fr/ign-lidarhd_dtm_E954-N6699_0m5@22LHD2QH2-2025-05-22.tif",
   "data/cache/fr/ign-lidarhd_dtm_E954-N6700_0m5@22LHD2QH2-2025-05-22.tif",
   "data/cache/fr/ign-lidarhd_dtm_E954-N6701_0m5@22LHD2QH2-2025-05-22.tif"
  ],
  "calculated_at": "2026-09-24T10:28:03+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-ju4",
  "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": [
   "E953-N6699",
   "E953-N6700",
   "E954-N6699",
   "E954-N6700",
   "E954-N6701"
  ],
  "elevation_blocks": [
   "22LHD2QH2@2025-05-22"
  ],
  "ign_dalles": [
   "LHD_FXX_0953_6700_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0953_6701_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0954_6700_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0954_6701_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0954_6702_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD2QH2"
  ],
  "ign_editions": [
   "2025-05-22"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0953_6700_MNT_O_0M50_LAMB93_IGN69": "2025-05-22",
   "LHD_FXX_0953_6701_MNT_O_0M50_LAMB93_IGN69": "2025-05-22",
   "LHD_FXX_0954_6700_MNT_O_0M50_LAMB93_IGN69": "2025-05-22",
   "LHD_FXX_0954_6701_MNT_O_0M50_LAMB93_IGN69": "2025-05-22",
   "LHD_FXX_0954_6702_MNT_O_0M50_LAMB93_IGN69": "2025-05-22"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 13,
  "carriageway": {
   "stations": 93,
   "stations_resolved": 93,
   "width_median_m": 9.25,
   "width_p10_m": 6.5,
   "width_min_m": 4.25,
   "width_max_m": 12.0,
   "bounded_share": 0.043,
   "unbounded_share": 0.957,
   "confidence_median": 0.0,
   "width_median_bounded_m": 6.38,
   "window_m": [
    108.0,
    133.0
   ],
   "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": 93,
    "stations_resolved": 93,
    "width_median_m": 12.0,
    "width_p10_m": 7.55,
    "width_min_m": 1.5,
    "width_max_m": 12.0,
    "bounded_share": 0.151,
    "unbounded_share": 0.849,
    "confidence_median": 0.0,
    "width_median_bounded_m": 5.62,
    "window_m": [
     108.0,
     133.0
    ],
    "width_at_max25_m": 5.75,
    "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": "Baume-les-Dames",
  "county": "Doubs",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}