{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.9112, 5.8954)",
 "slug": "discovered-lane-46-9112-5-8954",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 38.38761622331219,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 690.0,
   "end_distance_m": 692.0,
   "start_elevation_m": 439.0830494313009,
   "end_elevation_m": 439.8508017557671,
   "min_gradient_pct": -10.39623827436742
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.29651560233924,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 689.0,
   "end_distance_m": 692.0,
   "start_elevation_m": 438.76190628769695,
   "end_elevation_m": 439.8508017557671,
   "min_gradient_pct": -8.917541073450744
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 34.25261507051118,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 689.0,
   "end_distance_m": 694.0,
   "start_elevation_m": 438.76190628769695,
   "end_elevation_m": 440.4745370412225,
   "min_gradient_pct": -8.253403213830097
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.71204385733222,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 685.0,
   "end_distance_m": 695.0,
   "start_elevation_m": 437.84264959443806,
   "end_elevation_m": 440.7138539801713,
   "min_gradient_pct": -6.67797557812321
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.395380699547275,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 679.0,
   "end_distance_m": 699.0,
   "start_elevation_m": 436.8723564689036,
   "end_elevation_m": 441.55143260881306,
   "min_gradient_pct": -5.3424334742501856
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.471559473628076,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 674.0,
   "end_distance_m": 699.0,
   "start_elevation_m": 435.93354274040604,
   "end_elevation_m": 441.55143260881306,
   "min_gradient_pct": -4.911327643510958
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.24506993956311,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 649.0,
   "end_distance_m": 699.0,
   "start_elevation_m": 431.4288976390315,
   "end_elevation_m": 441.55143260881306,
   "min_gradient_pct": -2.4013970790501844
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.273483326564417,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 599.0,
   "end_distance_m": 699.0,
   "start_elevation_m": 422.27794928224864,
   "end_elevation_m": 441.55143260881306,
   "min_gradient_pct": -0.3410956722300398
  }
 ],
 "shape": {
  "ascent_concentration": 0.435,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 227.0,
  "shape_class": "sustained"
 },
 "length_m": 1142.9972892993896,
 "start_elevation_m": 384.45218877697874,
 "end_elevation_m": 498.8209655746882,
 "endpoint_gain_m": 114.36877679770947,
 "overall_gradient_pct": 10.006040947639764,
 "accumulated_ascent_m": 118.07318266405667,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 34.25261507051118,
   "start_distance_m": 689.0,
   "end_distance_m": 694.0,
   "midpoint_distance_m": 691.5,
   "start_elevation_m": 438.76190628769695,
   "end_elevation_m": 440.4745370412225,
   "start_xy": [
    920225.3471525923,
    6649701.3898868635
   ],
   "end_xy": [
    920230.2448408128,
    6649700.383581694
   ]
  },
  "max_10m": {
   "gradient_pct": 28.71204385733222,
   "start_distance_m": 685.0,
   "end_distance_m": 695.0,
   "midpoint_distance_m": 690.0,
   "start_elevation_m": 437.84264959443806,
   "end_elevation_m": 440.7138539801713,
   "start_xy": [
    920221.4290020157,
    6649702.194931
   ],
   "end_xy": [
    920231.224378457,
    6649700.182320661
   ]
  },
  "max_20m": {
   "gradient_pct": 23.395380699547275,
   "start_distance_m": 679.0,
   "end_distance_m": 699.0,
   "midpoint_distance_m": 689.0,
   "start_elevation_m": 436.8723564689036,
   "end_elevation_m": 441.55143260881306,
   "start_xy": [
    920216.0960424376,
    6649704.85695272
   ],
   "end_xy": [
    920235.1425290334,
    6649699.377276525
   ]
  },
  "max_25m": {
   "gradient_pct": 22.471559473628076,
   "start_distance_m": 674.0,
   "end_distance_m": 699.0,
   "midpoint_distance_m": 686.5,
   "start_elevation_m": 435.93354274040604,
   "end_elevation_m": 441.55143260881306,
   "start_xy": [
    920211.7408995319,
    6649707.313114416
   ],
   "end_xy": [
    920235.1425290334,
    6649699.377276525
   ]
  },
  "max_50m": {
   "gradient_pct": 20.24506993956311,
   "start_distance_m": 649.0,
   "end_distance_m": 699.0,
   "midpoint_distance_m": 674.0,
   "start_elevation_m": 431.4288976390315,
   "end_elevation_m": 441.55143260881306,
   "start_xy": [
    920189.9651850034,
    6649719.59392289
   ],
   "end_xy": [
    920235.1425290334,
    6649699.377276525
   ]
  },
  "max_100m": {
   "gradient_pct": 19.273483326564417,
   "start_distance_m": 599.0,
   "end_distance_m": 699.0,
   "midpoint_distance_m": 649.0,
   "start_elevation_m": 422.27794928224864,
   "end_elevation_m": 441.55143260881306,
   "start_xy": [
    920145.1190759876,
    6649740.288000766
   ],
   "end_xy": [
    920235.1425290334,
    6649699.377276525
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.253403213830097,
   "start_distance_m": 277.0,
   "end_distance_m": 282.0,
   "midpoint_distance_m": 279.5,
   "start_elevation_m": 398.36625476727704,
   "end_elevation_m": 397.95358460658554,
   "start_xy": [
    919898.1016766302,
    6649885.567626743
   ],
   "end_xy": [
    919900.991373234,
    6649881.533234021
   ]
  },
  "min_10m": {
   "gradient_pct": -6.67797557812321,
   "start_distance_m": 278.0,
   "end_distance_m": 288.0,
   "midpoint_distance_m": 283.0,
   "start_elevation_m": 398.29862782447333,
   "end_elevation_m": 397.630830266661,
   "start_xy": [
    919898.6048634893,
    6649884.703449108
   ],
   "end_xy": [
    919905.2140145919,
    6649877.270687837
   ]
  },
  "min_20m": {
   "gradient_pct": -5.3424334742501856,
   "start_distance_m": 270.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 280.0,
   "start_elevation_m": 398.57643512022014,
   "end_elevation_m": 397.5079484253701,
   "start_xy": [
    919894.5793686169,
    6649891.616870188
   ],
   "end_xy": [
    919906.6215617112,
    6649875.84983911
   ]
  },
  "min_25m": {
   "gradient_pct": -4.911327643510958,
   "start_distance_m": 277.0,
   "end_distance_m": 302.0,
   "midpoint_distance_m": 289.5,
   "start_elevation_m": 398.36625476727704,
   "end_elevation_m": 397.1384228563993,
   "start_xy": [
    919898.1016766302,
    6649885.567626743
   ],
   "end_xy": [
    919915.066844427,
    6649867.324746744
   ]
  },
  "min_50m": {
   "gradient_pct": -2.4013970790501844,
   "start_distance_m": 262.0,
   "end_distance_m": 312.0,
   "midpoint_distance_m": 287.0,
   "start_elevation_m": 398.5051753638003,
   "end_elevation_m": 397.3044768242752,
   "start_xy": [
    919890.5538737444,
    6649898.530291269
   ],
   "end_xy": [
    919922.1045800236,
    6649860.220503106
   ]
  },
  "min_100m": {
   "gradient_pct": -0.3410956722300398,
   "start_distance_m": 262.0,
   "end_distance_m": 362.0,
   "midpoint_distance_m": 312.0,
   "start_elevation_m": 398.5051753638003,
   "end_elevation_m": 398.16407969157024,
   "start_xy": [
    919890.5538737444,
    6649898.530291269
   ],
   "end_xy": [
    919952.2015718657,
    6649820.590899368
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 38.38761622331219,
   "start_distance_m": 690.0,
   "end_distance_m": 692.0,
   "midpoint_distance_m": 691.0,
   "start_elevation_m": 439.0830494313009,
   "end_elevation_m": 439.8508017557671,
   "start_xy": [
    920226.3266902363,
    6649701.18862583
   ],
   "end_xy": [
    920228.2857655246,
    6649700.786103763
   ]
  },
  "max_3m": {
   "gradient_pct": 36.29651560233924,
   "start_distance_m": 689.0,
   "end_distance_m": 692.0,
   "midpoint_distance_m": 690.5,
   "start_elevation_m": 438.76190628769695,
   "end_elevation_m": 439.8508017557671,
   "start_xy": [
    920225.3471525923,
    6649701.3898868635
   ],
   "end_xy": [
    920228.2857655246,
    6649700.786103763
   ]
  }
 },
 "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": 0.192,
   "obstruction_max_height_m": 21.77,
   "flagged_windows_m": [
    10,
    20,
    25,
    50,
    100
   ]
  },
  "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-ju3",
   "road_pbf": "block-batch-fr-ju3.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": "sha256:85c1fbdeafb19036"
  },
  "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_E919-N6649_0m5@22LHD2PI-2025-07-17.tif",
   "data/cache/fr/ign-lidarhd_dtm_E919-N6650_0m5@22LHD2PI-2025-07-17.tif",
   "data/cache/fr/ign-lidarhd_dtm_E920-N6649_0m5@22LHD2PI-2025-07-17.tif",
   "data/cache/fr/ign-lidarhd_dtm_E920-N6650_0m5@22LHD2PI-2025-07-17.tif"
  ],
  "calculated_at": "2026-09-24T13:53:49+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-ju3",
  "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": [
   "E919-N6649",
   "E919-N6650",
   "E920-N6649",
   "E920-N6650"
  ],
  "elevation_blocks": [
   "22LHD2PI@2025-07-17"
  ],
  "ign_dalles": [
   "LHD_FXX_0919_6650_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0919_6651_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0920_6650_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0920_6651_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD2PI"
  ],
  "ign_editions": [
   "2025-07-17"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0919_6650_MNT_O_0M50_LAMB93_IGN69": "2025-07-17",
   "LHD_FXX_0919_6651_MNT_O_0M50_LAMB93_IGN69": "2025-07-17",
   "LHD_FXX_0920_6650_MNT_O_0M50_LAMB93_IGN69": "2025-07-17",
   "LHD_FXX_0920_6651_MNT_O_0M50_LAMB93_IGN69": "2025-07-17"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 4,
  "carriageway": {
   "stations": 52,
   "stations_resolved": 52,
   "width_median_m": 4.0,
   "width_p10_m": 2.28,
   "width_min_m": 1.0,
   "width_max_m": 11.75,
   "bounded_share": 0.385,
   "unbounded_share": 0.615,
   "confidence_median": 0.0,
   "width_median_bounded_m": 2.75,
   "window_m": [
    674.0,
    699.0
   ],
   "width_at_max25_m": 2.0,
   "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": 52,
    "stations_resolved": 52,
    "width_median_m": 5.12,
    "width_p10_m": 2.03,
    "width_min_m": 0.0,
    "width_max_m": 12.0,
    "bounded_share": 0.654,
    "unbounded_share": 0.346,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.75,
    "window_m": [
     674.0,
     699.0
    ],
    "width_at_max25_m": 2.5,
    "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": "Salins-les-Bains",
  "county": "Jura",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}