{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.4796, 6.3552)",
 "slug": "discovered-lane-43-4796-6-3552",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 51.5139608619279,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 340.0,
   "end_distance_m": 342.0,
   "start_elevation_m": 204.1061383929667,
   "end_elevation_m": 205.13641761020526,
   "min_gradient_pct": -22.52986455460757
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.59666675170953,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 339.0,
   "end_distance_m": 342.0,
   "start_elevation_m": 204.00851760765397,
   "end_elevation_m": 205.13641761020526,
   "min_gradient_pct": -20.6841924014365
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.2818218978025,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 302.0,
   "end_distance_m": 307.0,
   "start_elevation_m": 197.42159721171294,
   "end_elevation_m": 198.83568830660306,
   "min_gradient_pct": -16.496159733028435
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.92589733521038,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 297.0,
   "end_distance_m": 307.0,
   "start_elevation_m": 196.24309857308202,
   "end_elevation_m": 198.83568830660306,
   "min_gradient_pct": -12.069399512246548
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.651557803301785,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 292.0,
   "end_distance_m": 312.0,
   "start_elevation_m": 195.0388716051462,
   "end_elevation_m": 199.96918316580656,
   "min_gradient_pct": -6.355979250452037
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.170107262901297,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 282.0,
   "end_distance_m": 307.0,
   "start_elevation_m": 192.79316149087774,
   "end_elevation_m": 198.83568830660306,
   "min_gradient_pct": -5.039658554414359
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.722669878711887,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 268.0,
   "end_distance_m": 318.0,
   "start_elevation_m": 189.8709028564605,
   "end_elevation_m": 201.23223779581645,
   "min_gradient_pct": -2.252524376202871
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.057001764762674,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 218.0,
   "end_distance_m": 318.0,
   "start_elevation_m": 181.17523603105377,
   "end_elevation_m": 201.23223779581645,
   "min_gradient_pct": -0.9356957739854295,
   "suppressed_max_gradient_pct": 20.236817425449516,
   "suppressed_location_m": [
    242.0,
    342.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.515,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 158.0,
  "shape_class": "stepped"
 },
 "length_m": 361.11473921977216,
 "start_elevation_m": 174.28158765259207,
 "end_elevation_m": 205.96626566015016,
 "endpoint_gain_m": 31.68467800755809,
 "overall_gradient_pct": 8.774130370866695,
 "accumulated_ascent_m": 36.5681767219412,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.2818218978025,
   "start_distance_m": 302.0,
   "end_distance_m": 307.0,
   "midpoint_distance_m": 304.5,
   "start_elevation_m": 197.42159721171294,
   "end_elevation_m": 198.83568830660306,
   "start_xy": [
    971602.0069662076,
    6270304.0829078285
   ],
   "end_xy": [
    971606.7325465019,
    6270305.716581873
   ]
  },
  "max_10m": {
   "gradient_pct": 25.92589733521038,
   "start_distance_m": 297.0,
   "end_distance_m": 307.0,
   "midpoint_distance_m": 302.0,
   "start_elevation_m": 196.24309857308202,
   "end_elevation_m": 198.83568830660306,
   "start_xy": [
    971597.2813859134,
    6270302.449233784
   ],
   "end_xy": [
    971606.7325465019,
    6270305.716581873
   ]
  },
  "max_20m": {
   "gradient_pct": 24.651557803301785,
   "start_distance_m": 292.0,
   "end_distance_m": 312.0,
   "midpoint_distance_m": 302.0,
   "start_elevation_m": 195.0388716051462,
   "end_elevation_m": 199.96918316580656,
   "start_xy": [
    971592.5558056191,
    6270300.81555974
   ],
   "end_xy": [
    971611.4581267962,
    6270307.350255917
   ]
  },
  "max_25m": {
   "gradient_pct": 24.170107262901297,
   "start_distance_m": 282.0,
   "end_distance_m": 307.0,
   "midpoint_distance_m": 294.5,
   "start_elevation_m": 192.79316149087774,
   "end_elevation_m": 198.83568830660306,
   "start_xy": [
    971583.1046450307,
    6270297.548211652
   ],
   "end_xy": [
    971606.7325465019,
    6270305.716581873
   ]
  },
  "max_50m": {
   "gradient_pct": 22.722669878711887,
   "start_distance_m": 268.0,
   "end_distance_m": 318.0,
   "midpoint_distance_m": 293.0,
   "start_elevation_m": 189.8709028564605,
   "end_elevation_m": 201.23223779581645,
   "start_xy": [
    971569.8730202067,
    6270292.973924328
   ],
   "end_xy": [
    971617.1409488386,
    6270309.274538636
   ]
  },
  "max_100m": {
   "gradient_pct": 20.057001764762674,
   "start_distance_m": 218.0,
   "end_distance_m": 318.0,
   "midpoint_distance_m": 268.0,
   "start_elevation_m": 181.17523603105377,
   "end_elevation_m": 201.23223779581645,
   "start_xy": [
    971522.769041014,
    6270276.207252791
   ],
   "end_xy": [
    971617.1409488386,
    6270309.274538636
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -16.496159733028435,
   "start_distance_m": 105.0,
   "end_distance_m": 110.0,
   "midpoint_distance_m": 107.5,
   "start_elevation_m": 174.90035261143794,
   "end_elevation_m": 174.07554462478652,
   "start_xy": [
    971452.4873998426,
    6270332.886284225
   ],
   "end_xy": [
    971454.7747146481,
    6270328.4401408415
   ]
  },
  "min_10m": {
   "gradient_pct": -12.069399512246548,
   "start_distance_m": 104.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 109.0,
   "start_elevation_m": 174.99940250383924,
   "end_elevation_m": 173.79246255261458,
   "start_xy": [
    971452.0299368815,
    6270333.775512901
   ],
   "end_xy": [
    971456.6045664926,
    6270324.883226136
   ]
  },
  "min_20m": {
   "gradient_pct": -6.355979250452037,
   "start_distance_m": 95.0,
   "end_distance_m": 115.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 175.05947168608066,
   "end_elevation_m": 173.78827583599025,
   "start_xy": [
    971447.9127702316,
    6270341.77857099
   ],
   "end_xy": [
    971457.0620294537,
    6270323.993997459
   ]
  },
  "min_25m": {
   "gradient_pct": -5.039658554414359,
   "start_distance_m": 90.0,
   "end_distance_m": 115.0,
   "midpoint_distance_m": 102.5,
   "start_elevation_m": 175.04819047459384,
   "end_elevation_m": 173.78827583599025,
   "start_xy": [
    971445.6254554262,
    6270346.224714373
   ],
   "end_xy": [
    971457.0620294537,
    6270323.993997459
   ]
  },
  "min_50m": {
   "gradient_pct": -2.252524376202871,
   "start_distance_m": 64.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 89.0,
   "start_elevation_m": 174.91872474071602,
   "end_elevation_m": 173.79246255261458,
   "start_xy": [
    971433.7024366474,
    6270369.328476981
   ],
   "end_xy": [
    971456.6045664926,
    6270324.883226136
   ]
  },
  "min_100m": {
   "gradient_pct": -0.9356957739854295,
   "start_distance_m": 19.0,
   "end_distance_m": 119.0,
   "midpoint_distance_m": 69.0,
   "start_elevation_m": 174.80222483219939,
   "end_elevation_m": 173.86652905821396,
   "start_xy": [
    971410.2225522895,
    6270407.699122337
   ],
   "end_xy": [
    971458.8954457772,
    6270320.438930322
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 51.5139608619279,
   "start_distance_m": 340.0,
   "end_distance_m": 342.0,
   "midpoint_distance_m": 341.0,
   "start_elevation_m": 204.1061383929667,
   "end_elevation_m": 205.13641761020526,
   "start_xy": [
    971638.0597015127,
    6270316.086717918
   ],
   "end_xy": [
    971639.9614063012,
    6270316.706006942
   ]
  },
  "max_3m": {
   "gradient_pct": 37.59666675170953,
   "start_distance_m": 339.0,
   "end_distance_m": 342.0,
   "midpoint_distance_m": 340.5,
   "start_elevation_m": 204.00851760765397,
   "end_elevation_m": 205.13641761020526,
   "start_xy": [
    971637.1088491183,
    6270315.777073405
   ],
   "end_xy": [
    971639.9614063012,
    6270316.706006942
   ]
  }
 },
 "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": 0.017,
   "windows_resited": [
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.725,
   "obstruction_max_height_m": 23.49,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    327.0,
    332.0
   ]
  ],
  "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-pr7",
   "road_pbf": "block-batch-fr-pr7.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_E971-N6270_0m5@22LHD6QQ-2025-03-24.tif"
  ],
  "calculated_at": "2026-09-25T09:05:03+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr7.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr7",
  "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": [
   "E971-N6270"
  ],
  "elevation_blocks": [
   "22LHD6QQ@2025-03-24"
  ],
  "ign_dalles": [
   "LHD_FXX_0971_6271_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6QQ"
  ],
  "ign_editions": [
   "2025-03-24"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0971_6271_MNT_O_0M50_LAMB93_IGN69": "2025-03-24"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 21,
   "stations_resolved": 21,
   "width_median_m": 4.0,
   "width_p10_m": 2.25,
   "width_min_m": 1.25,
   "width_max_m": 11.25,
   "bounded_share": 0.238,
   "unbounded_share": 0.762,
   "confidence_median": 0.0,
   "width_median_bounded_m": 2.5,
   "window_m": [
    282.0,
    307.0
   ],
   "width_at_max25_m": 4.0,
   "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": 21,
    "stations_resolved": 21,
    "width_median_m": 1.25,
    "width_p10_m": 0.5,
    "width_min_m": 0.5,
    "width_max_m": 7.5,
    "bounded_share": 1.0,
    "unbounded_share": 0.0,
    "confidence_median": 1.0,
    "width_median_bounded_m": 1.25,
    "window_m": [
     282.0,
     307.0
    ],
    "width_at_max25_m": 1.75,
    "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": "Lorgues",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}