{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.4182, 6.8901)",
 "slug": "discovered-lane-47-4182-6-8901",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.831235516693482,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 130.0,
   "end_distance_m": 132.0,
   "start_elevation_m": 397.7217657406076,
   "end_elevation_m": 398.1783904509415,
   "min_gradient_pct": -3.7648299552387243
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.686605998217146,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 126.0,
   "end_distance_m": 129.0,
   "start_elevation_m": 396.8530924786329,
   "end_elevation_m": 397.5336906585794,
   "min_gradient_pct": -3.671737314003091
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.269094177638635,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 124.0,
   "end_distance_m": 129.0,
   "start_elevation_m": 396.4202359496975,
   "end_elevation_m": 397.5336906585794,
   "min_gradient_pct": -2.480891580109983
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.866339975547362,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 124.0,
   "end_distance_m": 134.0,
   "start_elevation_m": 396.4202359496975,
   "end_elevation_m": 398.6068699472522,
   "min_gradient_pct": -1.4778370997350976
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.2599260340113,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 121.0,
   "end_distance_m": 141.0,
   "start_elevation_m": 395.8277595715832,
   "end_elevation_m": 400.0797447783855,
   "min_gradient_pct": -1.1823456063865478
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.19900809158821,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 126.0,
   "end_distance_m": 151.0,
   "start_elevation_m": 396.8530924786329,
   "end_elevation_m": 402.15284450152996,
   "min_gradient_pct": -1.1813943770805508
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.09321957049133,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 112.0,
   "end_distance_m": 162.0,
   "start_elevation_m": 394.0331388435809,
   "end_elevation_m": 404.07974862882656,
   "min_gradient_pct": -0.4018535591677619
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.672110655415963,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 74.0,
   "end_distance_m": 174.0,
   "start_elevation_m": 388.95158490340594,
   "end_elevation_m": 405.6236955588219,
   "min_gradient_pct": 0.5974564130333988
  }
 ],
 "shape": {
  "ascent_concentration": 0.6,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 114.0,
  "shape_class": "stepped"
 },
 "length_m": 357.5251274082931,
 "start_elevation_m": 385.1942802245899,
 "end_elevation_m": 410.5135783827509,
 "endpoint_gain_m": 25.31929815816102,
 "overall_gradient_pct": 7.081823406847269,
 "accumulated_ascent_m": 25.959869468036345,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.269094177638635,
   "start_distance_m": 124.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 126.5,
   "start_elevation_m": 396.4202359496975,
   "end_elevation_m": 397.5336906585794,
   "start_xy": [
    993102.8393940236,
    6709157.951449983
   ],
   "end_xy": [
    993105.5148241763,
    6709162.17543785
   ]
  },
  "max_10m": {
   "gradient_pct": 21.866339975547362,
   "start_distance_m": 124.0,
   "end_distance_m": 134.0,
   "midpoint_distance_m": 129.0,
   "start_elevation_m": 396.4202359496975,
   "end_elevation_m": 398.6068699472522,
   "start_xy": [
    993102.8393940236,
    6709157.951449983
   ],
   "end_xy": [
    993108.1902543291,
    6709166.399425716
   ]
  },
  "max_20m": {
   "gradient_pct": 21.2599260340113,
   "start_distance_m": 121.0,
   "end_distance_m": 141.0,
   "midpoint_distance_m": 131.0,
   "start_elevation_m": 395.8277595715832,
   "end_elevation_m": 400.0797447783855,
   "start_xy": [
    993101.2341359319,
    6709155.417057263
   ],
   "end_xy": [
    993112.0103981185,
    6709172.261249981
   ]
  },
  "max_25m": {
   "gradient_pct": 21.19900809158821,
   "start_distance_m": 126.0,
   "end_distance_m": 151.0,
   "midpoint_distance_m": 138.5,
   "start_elevation_m": 396.8530924786329,
   "end_elevation_m": 402.15284450152996,
   "start_xy": [
    993103.9095660847,
    6709159.64104513
   ],
   "end_xy": [
    993118.056312899,
    6709180.226607127
   ]
  },
  "max_50m": {
   "gradient_pct": 20.09321957049133,
   "start_distance_m": 112.0,
   "end_distance_m": 162.0,
   "midpoint_distance_m": 137.0,
   "start_elevation_m": 394.0331388435809,
   "end_elevation_m": 404.07974862882656,
   "start_xy": [
    993097.6015622924,
    6709147.215178133
   ],
   "end_xy": [
    993127.4397574778,
    6709185.758358499
   ]
  },
  "max_100m": {
   "gradient_pct": 16.672110655415963,
   "start_distance_m": 74.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 124.0,
   "start_elevation_m": 388.95158490340594,
   "end_elevation_m": 405.6236955588219,
   "start_xy": [
    993119.7238742064,
    6709116.784243576
   ],
   "end_xy": [
    993139.0052783223,
    6709188.955725436
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.480891580109983,
   "start_distance_m": 56.0,
   "end_distance_m": 61.0,
   "midpoint_distance_m": 58.5,
   "start_elevation_m": 388.37272012767136,
   "end_elevation_m": 388.24867554866586,
   "start_xy": [
    993132.5763331736,
    6709104.182089059
   ],
   "end_xy": [
    993129.0062056826,
    6709107.682687536
   ]
  },
  "min_10m": {
   "gradient_pct": -1.4778370997350976,
   "start_distance_m": 281.0,
   "end_distance_m": 291.0,
   "midpoint_distance_m": 286.0,
   "start_elevation_m": 408.5834507340812,
   "end_elevation_m": 408.4356670241077,
   "start_xy": [
    993241.473097553,
    6709219.760562607
   ],
   "end_xy": [
    993251.0661728816,
    6709222.584196036
   ]
  },
  "min_20m": {
   "gradient_pct": -1.1823456063865478,
   "start_distance_m": 273.0,
   "end_distance_m": 293.0,
   "midpoint_distance_m": 283.0,
   "start_elevation_m": 408.63488898043136,
   "end_elevation_m": 408.39841985915405,
   "start_xy": [
    993233.79863729,
    6709217.501655864
   ],
   "end_xy": [
    993252.9734862815,
    6709223.178609231
   ]
  },
  "min_25m": {
   "gradient_pct": -1.1813943770805508,
   "start_distance_m": 268.0,
   "end_distance_m": 293.0,
   "midpoint_distance_m": 280.5,
   "start_elevation_m": 408.6937684534242,
   "end_elevation_m": 408.39841985915405,
   "start_xy": [
    993229.0020996258,
    6709216.08983915
   ],
   "end_xy": [
    993252.9734862815,
    6709223.178609231
   ]
  },
  "min_50m": {
   "gradient_pct": -0.4018535591677619,
   "start_distance_m": 257.0,
   "end_distance_m": 307.0,
   "midpoint_distance_m": 282.0,
   "start_elevation_m": 408.6694391873279,
   "end_elevation_m": 408.468512407744,
   "start_xy": [
    993218.4497167642,
    6709212.9838423785
   ],
   "end_xy": [
    993265.6324801474,
    6709229.15772909
   ]
  },
  "min_100m": {
   "gradient_pct": 0.5974564130333988,
   "start_distance_m": 218.0,
   "end_distance_m": 318.0,
   "midpoint_distance_m": 268.0,
   "start_elevation_m": 408.0720721300052,
   "end_elevation_m": 408.6695285430386,
   "start_xy": [
    993181.0633827464,
    6709201.8830551
   ],
   "end_xy": [
    993275.5788324706,
    6709233.855608981
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.831235516693482,
   "start_distance_m": 130.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 131.0,
   "start_elevation_m": 397.7217657406076,
   "end_elevation_m": 398.1783904509415,
   "start_xy": [
    993106.0499102069,
    6709163.020235423
   ],
   "end_xy": [
    993107.120082268,
    6709164.709830569
   ]
  },
  "max_3m": {
   "gradient_pct": 22.686605998217146,
   "start_distance_m": 126.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 127.5,
   "start_elevation_m": 396.8530924786329,
   "end_elevation_m": 397.5336906585794,
   "start_xy": [
    993103.9095660847,
    6709159.64104513
   ],
   "end_xy": [
    993105.5148241763,
    6709162.17543785
   ]
  }
 },
 "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": 0.284,
   "obstruction_max_height_m": 20.0,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": []
 },
 "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:f64c37d4329daafb"
  },
  "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_E993-N6709_0m5@22LHDVosgesRH-2025-05-20.tif"
  ],
  "calculated_at": "2026-09-24T14:06:29+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": [
   "E993-N6709"
  ],
  "elevation_blocks": [
   "22LHDVosgesRH@2025-05-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0993_6710_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHDVosgesRH"
  ],
  "ign_editions": [
   "2025-05-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0993_6710_MNT_O_0M50_LAMB93_IGN69": "2025-05-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 4,
  "carriageway": {
   "stations": 21,
   "stations_resolved": 21,
   "width_median_m": 4.25,
   "width_p10_m": 3.5,
   "width_min_m": 3.0,
   "width_max_m": 10.75,
   "bounded_share": 0.381,
   "unbounded_share": 0.619,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.75,
   "window_m": [
    126.0,
    151.0
   ],
   "width_at_max25_m": 4.75,
   "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": 21,
    "stations_resolved": 21,
    "width_median_m": 4.75,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.667,
    "unbounded_share": 0.333,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.88,
    "window_m": [
     126.0,
     151.0
    ],
    "width_at_max25_m": 4.75,
    "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": "Mesli\u00e8res",
  "county": "Doubs",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}