{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.1501, 5.9792)",
 "slug": "discovered-lane-43-1501-5-9792",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 42.421132586831334,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 265.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 127.0078038675081,
   "end_elevation_m": 127.85622651924473,
   "min_gradient_pct": -8.719439582725386,
   "suppressed_max_gradient_pct": 55.236076256893796,
   "suppressed_location_m": [
    281.0,
    283.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 45.03296252114429,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 264.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 126.5052376436104,
   "end_elevation_m": 127.85622651924473,
   "min_gradient_pct": -4.330531926018466,
   "suppressed_max_gradient_pct": 52.20188351484675,
   "suppressed_location_m": [
    280.0,
    283.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 35.44455169541578,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 263.0,
   "end_distance_m": 268.0,
   "start_elevation_m": 126.24379043542383,
   "end_elevation_m": 128.01601802019462,
   "min_gradient_pct": -0.3872183264746809,
   "suppressed_max_gradient_pct": 46.54333211666369,
   "suppressed_location_m": [
    278.0,
    283.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.652306696984112,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 257.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 125.09099584954632,
   "end_elevation_m": 127.85622651924473,
   "min_gradient_pct": 0.35892076240145343,
   "suppressed_max_gradient_pct": 33.3704513549867,
   "suppressed_location_m": [
    275.0,
    285.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.938430489865368,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 545.0,
   "end_distance_m": 565.0,
   "start_elevation_m": 166.32119748527222,
   "end_elevation_m": 171.7088835832453,
   "min_gradient_pct": 1.29397159866258,
   "suppressed_max_gradient_pct": 27.285862687461485,
   "suppressed_location_m": [
    263.0,
    283.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 26.842427667252764,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 545.0,
   "end_distance_m": 570.0,
   "start_elevation_m": 166.32119748527222,
   "end_elevation_m": 173.0318044020854,
   "min_gradient_pct": 1.8120048952894194
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 24.85159266114596,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 525.0,
   "end_distance_m": 575.0,
   "start_elevation_m": 161.78550591672538,
   "end_elevation_m": 174.21130224729836,
   "min_gradient_pct": 3.5835493719925466
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 22.306908446215456,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 518.0,
   "end_distance_m": 618.0,
   "start_elevation_m": 160.64363979098988,
   "end_elevation_m": 182.95054823720534,
   "min_gradient_pct": 5.2995206942038635
  }
 ],
 "shape": {
  "ascent_concentration": 0.373,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 118.0,
  "shape_class": "sustained"
 },
 "length_m": 617.9999999997381,
 "start_elevation_m": 101.75698307324257,
 "end_elevation_m": 182.95054823720534,
 "endpoint_gain_m": 81.19356516396277,
 "overall_gradient_pct": 13.13811734045262,
 "accumulated_ascent_m": 81.48927672597091,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 35.44455169541578,
   "start_distance_m": 263.0,
   "end_distance_m": 268.0,
   "midpoint_distance_m": 265.5,
   "start_elevation_m": 126.24379043542383,
   "end_elevation_m": 128.01601802019462,
   "start_xy": [
    942693.5134221555,
    6232382.799728657
   ],
   "end_xy": [
    942692.3200364994,
    6232387.655223552
   ]
  },
  "max_10m": {
   "gradient_pct": 27.652306696984112,
   "start_distance_m": 257.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 262.0,
   "start_elevation_m": 125.09099584954632,
   "end_elevation_m": 127.85622651924473,
   "start_xy": [
    942694.9454849429,
    6232376.973134783
   ],
   "end_xy": [
    942692.5587136305,
    6232386.684124573
   ]
  },
  "max_20m": {
   "gradient_pct": 26.938430489865368,
   "start_distance_m": 545.0,
   "end_distance_m": 565.0,
   "midpoint_distance_m": 555.0,
   "start_elevation_m": 166.32119748527222,
   "end_elevation_m": 171.7088835832453,
   "start_xy": [
    942458.2409116625,
    6232447.918732436
   ],
   "end_xy": [
    942454.1753430789,
    6232467.501151902
   ]
  },
  "max_25m": {
   "gradient_pct": 26.842427667252764,
   "start_distance_m": 545.0,
   "end_distance_m": 570.0,
   "midpoint_distance_m": 557.5,
   "start_elevation_m": 166.32119748527222,
   "end_elevation_m": 173.0318044020854,
   "start_xy": [
    942458.2409116625,
    6232447.918732436
   ],
   "end_xy": [
    942453.158950933,
    6232472.396756767
   ]
  },
  "max_50m": {
   "gradient_pct": 24.85159266114596,
   "start_distance_m": 525.0,
   "end_distance_m": 575.0,
   "midpoint_distance_m": 550.0,
   "start_elevation_m": 161.78550591672538,
   "end_elevation_m": 174.21130224729836,
   "start_xy": [
    942475.8349310872,
    6232442.772817837
   ],
   "end_xy": [
    942453.2209539874,
    6232477.363818947
   ]
  },
  "max_100m": {
   "gradient_pct": 22.306908446215456,
   "start_distance_m": 518.0,
   "end_distance_m": 618.0,
   "midpoint_distance_m": 568.0,
   "start_elevation_m": 160.64363979098988,
   "end_elevation_m": 182.95054823720534,
   "start_xy": [
    942482.7961150707,
    6232442.360726876
   ],
   "end_xy": [
    942450.8656026871,
    6232519.951558194
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.3872183264746809,
   "start_distance_m": 361.0,
   "end_distance_m": 366.0,
   "midpoint_distance_m": 363.5,
   "start_elevation_m": 142.33971282771913,
   "end_elevation_m": 142.3203519113954,
   "start_xy": [
    942637.4839822343,
    6232443.295482768
   ],
   "end_xy": [
    942632.7783811308,
    6232441.605122375
   ]
  },
  "min_10m": {
   "gradient_pct": 0.35892076240145343,
   "start_distance_m": 363.0,
   "end_distance_m": 373.0,
   "midpoint_distance_m": 368.0,
   "start_elevation_m": 142.38924830961682,
   "end_elevation_m": 142.42514038585696,
   "start_xy": [
    942635.6017417929,
    6232442.61933861
   ],
   "end_xy": [
    942626.190539586,
    6232439.238617826
   ]
  },
  "min_20m": {
   "gradient_pct": 1.29397159866258,
   "start_distance_m": 361.0,
   "end_distance_m": 381.0,
   "midpoint_distance_m": 371.0,
   "start_elevation_m": 142.33971282771913,
   "end_elevation_m": 142.59850714745164,
   "start_xy": [
    942637.4839822343,
    6232443.295482768
   ],
   "end_xy": [
    942618.6615778205,
    6232436.534041199
   ]
  },
  "min_25m": {
   "gradient_pct": 1.8120048952894194,
   "start_distance_m": 360.0,
   "end_distance_m": 385.0,
   "midpoint_distance_m": 372.5,
   "start_elevation_m": 142.29470653605813,
   "end_elevation_m": 142.74770775988048,
   "start_xy": [
    942638.425102455,
    6232443.633554846
   ],
   "end_xy": [
    942614.8970969379,
    6232435.181752885
   ]
  },
  "min_50m": {
   "gradient_pct": 3.5835493719925466,
   "start_distance_m": 345.0,
   "end_distance_m": 395.0,
   "midpoint_distance_m": 370.0,
   "start_elevation_m": 141.6235967576445,
   "end_elevation_m": 143.41537144364077,
   "start_xy": [
    942652.5412380644,
    6232448.619550106
   ],
   "end_xy": [
    942605.0617443135,
    6232435.68873844
   ]
  },
  "min_100m": {
   "gradient_pct": 5.2995206942038635,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 101.75698307324257,
   "end_elevation_m": 107.05650376744643,
   "start_xy": [
    942843.724,
    6232213.897
   ],
   "end_xy": [
    942798.0952565122,
    6232278.93178279
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 42.421132586831334,
   "start_distance_m": 265.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 266.0,
   "start_elevation_m": 127.0078038675081,
   "end_elevation_m": 127.85622651924473,
   "start_xy": [
    942693.036067893,
    6232384.741926615
   ],
   "end_xy": [
    942692.5587136305,
    6232386.684124573
   ]
  },
  "max_3m": {
   "gradient_pct": 45.03296252114429,
   "start_distance_m": 264.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 265.5,
   "start_elevation_m": 126.5052376436104,
   "end_elevation_m": 127.85622651924473,
   "start_xy": [
    942693.2747450243,
    6232383.770827636
   ],
   "end_xy": [
    942692.5587136305,
    6232386.684124573
   ]
  }
 },
 "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": 0.01,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.252,
   "obstruction_max_height_m": 18.79,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    279.0,
    284.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832",
   "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-pr5",
   "road_pbf": "block-batch-fr-pr5.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:ba95a0bf562c86eb"
  },
  "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_E942-N6232_0m5@22LHDQR-2025-03-11.tif"
  ],
  "calculated_at": "2026-09-25T09:06:50+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr5.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr5",
  "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": [
   "E942-N6232"
  ],
  "elevation_blocks": [
   "22LHDQR@2025-03-11"
  ],
  "ign_dalles": [
   "LHD_FXX_0942_6233_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHDQR"
  ],
  "ign_editions": [
   "2025-03-11"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0942_6233_MNT_O_0M50_LAMB93_IGN69": "2025-03-11"
  },
  "route_cut_m": 618.0,
  "climb_origin": "discovered",
  "structure_own_ways": 5,
  "carriageway": {
   "stations": 30,
   "stations_resolved": 30,
   "width_median_m": 4.75,
   "width_p10_m": 2.73,
   "width_min_m": 1.5,
   "width_max_m": 10.0,
   "bounded_share": 0.233,
   "unbounded_share": 0.767,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    545.0,
    570.0
   ],
   "width_at_max25_m": 4.5,
   "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": 30,
    "stations_resolved": 30,
    "width_median_m": 3.12,
    "width_p10_m": 0.73,
    "width_min_m": 0.5,
    "width_max_m": 8.5,
    "bounded_share": 0.933,
    "unbounded_share": 0.067,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.88,
    "window_m": [
     545.0,
     570.0
    ],
    "width_at_max25_m": 4.5,
    "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": "La Valette-du-Var",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}