{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (41.7084, 8.9071)",
 "slug": "discovered-lane-41-7084-8-9071",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 42.642765274894145,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 391.0,
   "end_distance_m": 393.0,
   "start_elevation_m": 413.0223344400514,
   "end_elevation_m": 413.8751897455493,
   "min_gradient_pct": -12.320157407879151,
   "suppressed_max_gradient_pct": 57.01131419120884,
   "suppressed_location_m": [
    171.0,
    173.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.2609946186714,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 184.0,
   "end_distance_m": 187.0,
   "start_elevation_m": 371.83509511017087,
   "end_elevation_m": 372.982924948731,
   "min_gradient_pct": -7.833020427244719,
   "suppressed_max_gradient_pct": 49.373971272556595,
   "suppressed_location_m": [
    170.0,
    173.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 34.1919086192695,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 182.0,
   "end_distance_m": 187.0,
   "start_elevation_m": 371.27332951776754,
   "end_elevation_m": 372.982924948731,
   "min_gradient_pct": -7.318800233214233,
   "suppressed_max_gradient_pct": 39.44214688715988,
   "suppressed_location_m": [
    170.0,
    175.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 32.713316703377586,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 870.0,
   "end_distance_m": 880.0,
   "start_elevation_m": 472.35820811361896,
   "end_elevation_m": 475.6295397839567,
   "min_gradient_pct": -5.810406773111936
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 31.51173049850769,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 867.0,
   "end_distance_m": 887.0,
   "start_elevation_m": 471.4503998083311,
   "end_elevation_m": 477.75274590803264,
   "min_gradient_pct": -3.879269288870262
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 30.774068830013903,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 866.0,
   "end_distance_m": 891.0,
   "start_elevation_m": 471.1707521750253,
   "end_elevation_m": 478.8642693825288,
   "min_gradient_pct": -2.9282714534915613
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 28.81539445025703,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 866.0,
   "end_distance_m": 916.0,
   "start_elevation_m": 471.1707521750253,
   "end_elevation_m": 485.57844940015383,
   "min_gradient_pct": 0.9201676953720153
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 26.33288799459928,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 863.0,
   "end_distance_m": 963.0,
   "start_elevation_m": 470.4723506741592,
   "end_elevation_m": 496.8052386687585,
   "min_gradient_pct": 1.9563122982905838
  }
 ],
 "shape": {
  "ascent_concentration": 0.349,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 156.0,
  "shape_class": "sustained"
 },
 "length_m": 970.2072493788296,
 "start_elevation_m": 360.75881958008483,
 "end_elevation_m": 497.94572535102884,
 "endpoint_gain_m": 137.186905770944,
 "overall_gradient_pct": 14.13995884474964,
 "accumulated_ascent_m": 139.31748808303075,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 34.1919086192695,
   "start_distance_m": 182.0,
   "end_distance_m": 187.0,
   "midpoint_distance_m": 184.5,
   "start_elevation_m": 371.27332951776754,
   "end_elevation_m": 372.982924948731,
   "start_xy": [
    1192437.8594240525,
    6085644.851067041
   ],
   "end_xy": [
    1192442.8447519587,
    6085644.925154637
   ]
  },
  "max_10m": {
   "gradient_pct": 32.713316703377586,
   "start_distance_m": 870.0,
   "end_distance_m": 880.0,
   "midpoint_distance_m": 875.0,
   "start_elevation_m": 472.35820811361896,
   "end_elevation_m": 475.6295397839567,
   "start_xy": [
    1192216.4590519443,
    6086005.80988302
   ],
   "end_xy": [
    1192206.4591817162,
    6086005.860828316
   ]
  },
  "max_20m": {
   "gradient_pct": 31.51173049850769,
   "start_distance_m": 867.0,
   "end_distance_m": 887.0,
   "midpoint_distance_m": 877.0,
   "start_elevation_m": 471.4503998083311,
   "end_elevation_m": 477.75274590803264,
   "start_xy": [
    1192219.4590130127,
    6086005.794599432
   ],
   "end_xy": [
    1192199.4592725567,
    6086005.896490022
   ]
  },
  "max_25m": {
   "gradient_pct": 30.774068830013903,
   "start_distance_m": 866.0,
   "end_distance_m": 891.0,
   "midpoint_distance_m": 878.5,
   "start_elevation_m": 471.1707521750253,
   "end_elevation_m": 478.8642693825288,
   "start_xy": [
    1192220.4590000354,
    6086005.789504902
   ],
   "end_xy": [
    1192195.4593244654,
    6086005.91686814
   ]
  },
  "max_50m": {
   "gradient_pct": 28.81539445025703,
   "start_distance_m": 866.0,
   "end_distance_m": 916.0,
   "midpoint_distance_m": 891.0,
   "start_elevation_m": 471.1707521750253,
   "end_elevation_m": 485.57844940015383,
   "start_xy": [
    1192220.4590000354,
    6086005.789504902
   ],
   "end_xy": [
    1192170.588785988,
    6086003.59465314
   ]
  },
  "max_100m": {
   "gradient_pct": 26.33288799459928,
   "start_distance_m": 863.0,
   "end_distance_m": 963.0,
   "midpoint_distance_m": 913.0,
   "start_elevation_m": 470.4723506741592,
   "end_elevation_m": 496.8052386687585,
   "start_xy": [
    1192223.4589611038,
    6086005.774221313
   ],
   "end_xy": [
    1192165.504014549,
    6086032.009051144
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.318800233214233,
   "start_distance_m": 43.0,
   "end_distance_m": 48.0,
   "midpoint_distance_m": 45.5,
   "start_elevation_m": 363.35656345014473,
   "end_elevation_m": 362.990623438484,
   "start_xy": [
    1192307.6455775728,
    6085691.4890797315
   ],
   "end_xy": [
    1192312.562674226,
    6085690.582349065
   ]
  },
  "min_10m": {
   "gradient_pct": -5.810406773111936,
   "start_distance_m": 43.0,
   "end_distance_m": 53.0,
   "midpoint_distance_m": 48.0,
   "start_elevation_m": 363.35656345014473,
   "end_elevation_m": 362.77552277283354,
   "start_xy": [
    1192307.6455775728,
    6085691.4890797315
   ],
   "end_xy": [
    1192317.4797708793,
    6085689.675618397
   ]
  },
  "min_20m": {
   "gradient_pct": -3.879269288870262,
   "start_distance_m": 41.0,
   "end_distance_m": 61.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 363.34024676776625,
   "end_elevation_m": 362.5643929099922,
   "start_xy": [
    1192305.6787389116,
    6085691.851771998
   ],
   "end_xy": [
    1192325.0448726765,
    6085687.082958794
   ]
  },
  "min_25m": {
   "gradient_pct": -2.9282714534915613,
   "start_distance_m": 41.0,
   "end_distance_m": 66.0,
   "midpoint_distance_m": 53.5,
   "start_elevation_m": 363.34024676776625,
   "end_elevation_m": 362.60817890439336,
   "start_xy": [
    1192305.6787389116,
    6085691.851771998
   ],
   "end_xy": [
    1192329.766650372,
    6085685.438326497
   ]
  },
  "min_50m": {
   "gradient_pct": 0.9201676953720153,
   "start_distance_m": 730.0,
   "end_distance_m": 780.0,
   "midpoint_distance_m": 755.0,
   "start_elevation_m": 456.2255458454995,
   "end_elevation_m": 456.6856296931855,
   "start_xy": [
    1192302.8679569503,
    6085989.028114396
   ],
   "end_xy": [
    1192253.4015071217,
    6085984.043547899
   ]
  },
  "min_100m": {
   "gradient_pct": 1.9563122982905838,
   "start_distance_m": 36.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 86.0,
   "start_elevation_m": 363.11534694131245,
   "end_elevation_m": 365.07165923960304,
   "start_xy": [
    1192300.7616422584,
    6085692.758502666
   ],
   "end_xy": [
    1192394.3987869134,
    6085658.861607595
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 42.642765274894145,
   "start_distance_m": 391.0,
   "end_distance_m": 393.0,
   "midpoint_distance_m": 392.0,
   "start_elevation_m": 413.0223344400514,
   "end_elevation_m": 413.8751897455493,
   "start_xy": [
    1192435.2919904722,
    6085822.806918596
   ],
   "end_xy": [
    1192436.286746576,
    6085824.541986403
   ]
  },
  "max_3m": {
   "gradient_pct": 38.2609946186714,
   "start_distance_m": 184.0,
   "end_distance_m": 187.0,
   "midpoint_distance_m": 185.5,
   "start_elevation_m": 371.83509511017087,
   "end_elevation_m": 372.982924948731,
   "start_xy": [
    1192439.8491276056,
    6085644.763183238
   ],
   "end_xy": [
    1192442.8447519587,
    6085644.925154637
   ]
  }
 },
 "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": 0.006,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.347,
   "obstruction_max_height_m": 11.57,
   "flagged_windows_m": [
    2,
    3,
    5
   ]
  },
  "excluded_ranges_m": [
   [
    169.0,
    174.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "33abfff569d4360542e616d0d42c1b94d0a711fa",
   "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-co2",
   "road_pbf": "block-batch-fr-co2.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": "sha256:2a717d675f2607cc"
  },
  "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_E1192-N6085_0m5@21LHDCorseVU-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1192-N6086_0m5@21LHDCorseVU-2025-04-02.tif"
  ],
  "calculated_at": "2026-09-25T00:44:59+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-co2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-co2",
  "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": [
   "E1192-N6085",
   "E1192-N6086"
  ],
  "elevation_blocks": [
   "21LHDCorseVU@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_1192_6086_MNT_O_0M50_LAMB93_IGN78",
   "LHD_FXX_1192_6087_MNT_O_0M50_LAMB93_IGN78"
  ],
  "ign_missions": [
   "21LHDCorseVU"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1192_6086_MNT_O_0M50_LAMB93_IGN78": "2025-04-02",
   "LHD_FXX_1192_6087_MNT_O_0M50_LAMB93_IGN78": "2025-04-02"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "carriageway": {
   "stations": 45,
   "stations_resolved": 45,
   "width_median_m": 4.75,
   "width_p10_m": 2.85,
   "width_min_m": 1.25,
   "width_max_m": 10.25,
   "bounded_share": 0.578,
   "unbounded_share": 0.422,
   "confidence_median": 0.564,
   "width_median_bounded_m": 4.75,
   "window_m": [
    866.0,
    891.0
   ],
   "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": 45,
    "stations_resolved": 45,
    "width_median_m": 3.0,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 10.25,
    "bounded_share": 0.956,
    "unbounded_share": 0.044,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.0,
    "window_m": [
     866.0,
     891.0
    ],
    "width_at_max25_m": 3.75,
    "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": "Olmeto",
  "county": "Corse-du-Sud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}