{
 "ocl_version": "0.1.0",
 "name": "chemin d'i Setti",
 "slug": "chemin-d-i-setti",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.94671403860434,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 470.0,
   "end_distance_m": 472.0,
   "start_elevation_m": 182.01421683342545,
   "end_elevation_m": 182.67315111419754,
   "min_gradient_pct": -4.945128680139987
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.70256803451351,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 470.0,
   "end_distance_m": 473.0,
   "start_elevation_m": 182.01421683342545,
   "end_elevation_m": 182.99529387446086,
   "min_gradient_pct": -4.373951985941933
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.640165155088198,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 467.0,
   "end_distance_m": 472.0,
   "start_elevation_m": 181.09114285644313,
   "end_elevation_m": 182.67315111419754,
   "min_gradient_pct": -4.112924966813125
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 31.25984744526562,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 463.0,
   "end_distance_m": 473.0,
   "start_elevation_m": 179.8693091299343,
   "end_elevation_m": 182.99529387446086,
   "min_gradient_pct": -3.9635337859311903
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 30.574494575241857,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 458.0,
   "end_distance_m": 478.0,
   "start_elevation_m": 178.34722172481796,
   "end_elevation_m": 184.46212063986633,
   "min_gradient_pct": -3.37640313934088
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 29.938284864779348,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 453.0,
   "end_distance_m": 478.0,
   "start_elevation_m": 176.9775494236715,
   "end_elevation_m": 184.46212063986633,
   "min_gradient_pct": -2.9565316175517182
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 27.806857842427576,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 454.0,
   "end_distance_m": 504.0,
   "start_elevation_m": 177.2391343597829,
   "end_elevation_m": 191.14256328099668,
   "min_gradient_pct": -1.5165777272419518
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 25.475711750381432,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 445.0,
   "end_distance_m": 545.0,
   "start_elevation_m": 175.0994797552961,
   "end_elevation_m": 200.57519150567754,
   "min_gradient_pct": 0.3929361361779229
  }
 ],
 "shape": {
  "ascent_concentration": 0.476,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 334.0,
  "shape_class": "stepped"
 },
 "length_m": 930.9999999999781,
 "start_elevation_m": 116.63930499267485,
 "end_elevation_m": 221.8590103091104,
 "endpoint_gain_m": 105.21970531643555,
 "overall_gradient_pct": 11.30179434118561,
 "accumulated_ascent_m": 106.09075371544031,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.640165155088198,
   "start_distance_m": 467.0,
   "end_distance_m": 472.0,
   "midpoint_distance_m": 469.5,
   "start_elevation_m": 181.09114285644313,
   "end_elevation_m": 182.67315111419754,
   "start_xy": [
    1175828.8648515772,
    6089082.1035327315
   ],
   "end_xy": [
    1175833.2822467098,
    6089084.363806526
   ]
  },
  "max_10m": {
   "gradient_pct": 31.25984744526562,
   "start_distance_m": 463.0,
   "end_distance_m": 473.0,
   "midpoint_distance_m": 468.0,
   "start_elevation_m": 179.8693091299343,
   "end_elevation_m": 182.99529387446086,
   "start_xy": [
    1175825.5797838094,
    6089079.821356191
   ],
   "end_xy": [
    1175834.218216065,
    6089084.715888003
   ]
  },
  "max_20m": {
   "gradient_pct": 30.574494575241857,
   "start_distance_m": 458.0,
   "end_distance_m": 478.0,
   "midpoint_distance_m": 468.0,
   "start_elevation_m": 178.34722172481796,
   "end_elevation_m": 184.46212063986633,
   "start_xy": [
    1175821.4734490993,
    6089076.968635516
   ],
   "end_xy": [
    1175839.1257562335,
    6089085.155670788
   ]
  },
  "max_25m": {
   "gradient_pct": 29.938284864779348,
   "start_distance_m": 453.0,
   "end_distance_m": 478.0,
   "midpoint_distance_m": 465.5,
   "start_elevation_m": 176.9775494236715,
   "end_elevation_m": 184.46212063986633,
   "start_xy": [
    1175817.1209666447,
    6089074.575364397
   ],
   "end_xy": [
    1175839.1257562335,
    6089085.155670788
   ]
  },
  "max_50m": {
   "gradient_pct": 27.806857842427576,
   "start_distance_m": 454.0,
   "end_distance_m": 504.0,
   "midpoint_distance_m": 479.0,
   "start_elevation_m": 177.2391343597829,
   "end_elevation_m": 191.14256328099668,
   "start_xy": [
    1175818.0509246828,
    6089074.9430300705
   ],
   "end_xy": [
    1175864.4239476903,
    6089079.933886518
   ]
  },
  "max_100m": {
   "gradient_pct": 25.475711750381432,
   "start_distance_m": 445.0,
   "end_distance_m": 545.0,
   "midpoint_distance_m": 495.0,
   "start_elevation_m": 175.0994797552961,
   "end_elevation_m": 200.57519150567754,
   "start_xy": [
    1175809.6813023398,
    6089071.63403901
   ],
   "end_xy": [
    1175900.5299815522,
    6089098.75645638
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.112924966813125,
   "start_distance_m": 731.0,
   "end_distance_m": 736.0,
   "midpoint_distance_m": 733.5,
   "start_elevation_m": 217.20494795387856,
   "end_elevation_m": 216.9993017055379,
   "start_xy": [
    1176043.7316990297,
    6089210.574729603
   ],
   "end_xy": [
    1176048.6130648674,
    6089211.657442657
   ]
  },
  "min_10m": {
   "gradient_pct": -3.9635337859311903,
   "start_distance_m": 725.0,
   "end_distance_m": 735.0,
   "midpoint_distance_m": 730.0,
   "start_elevation_m": 217.43259168868636,
   "end_elevation_m": 217.03623831009324,
   "start_xy": [
    1176037.8740600245,
    6089209.275473938
   ],
   "end_xy": [
    1176047.6367917,
    6089211.440900046
   ]
  },
  "min_20m": {
   "gradient_pct": -3.37640313934088,
   "start_distance_m": 722.0,
   "end_distance_m": 742.0,
   "midpoint_distance_m": 732.0,
   "start_elevation_m": 217.5137293929726,
   "end_elevation_m": 216.83844876510443,
   "start_xy": [
    1176035.0580200416,
    6089208.389392187
   ],
   "end_xy": [
    1176054.4707038729,
    6089212.956698322
   ]
  },
  "min_25m": {
   "gradient_pct": -2.9565316175517182,
   "start_distance_m": 722.0,
   "end_distance_m": 747.0,
   "midpoint_distance_m": 734.5,
   "start_elevation_m": 217.5137293929726,
   "end_elevation_m": 216.77459648858468,
   "start_xy": [
    1176035.0580200416,
    6089208.389392187
   ],
   "end_xy": [
    1176059.3520697106,
    6089214.039411376
   ]
  },
  "min_50m": {
   "gradient_pct": -1.5165777272419518,
   "start_distance_m": 721.0,
   "end_distance_m": 771.0,
   "midpoint_distance_m": 746.0,
   "start_elevation_m": 217.51789658515207,
   "end_elevation_m": 216.7596077215311,
   "start_xy": [
    1176034.2753324283,
    6089207.766977453
   ],
   "end_xy": [
    1176082.413285168,
    6089220.661503192
   ]
  },
  "min_100m": {
   "gradient_pct": 0.3929361361779229,
   "start_distance_m": 711.0,
   "end_distance_m": 811.0,
   "midpoint_distance_m": 761.0,
   "start_elevation_m": 217.39879654692766,
   "end_elevation_m": 217.79173268310558,
   "start_xy": [
    1176026.4484562976,
    6089201.542830119
   ],
   "end_xy": [
    1176121.9770895604,
    6089222.852405049
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.94671403860434,
   "start_distance_m": 470.0,
   "end_distance_m": 472.0,
   "midpoint_distance_m": 471.0,
   "start_elevation_m": 182.01421683342545,
   "end_elevation_m": 182.67315111419754,
   "start_xy": [
    1175831.4103079992,
    6089083.659643574
   ],
   "end_xy": [
    1175833.2822467098,
    6089084.363806526
   ]
  },
  "max_3m": {
   "gradient_pct": 32.70256803451351,
   "start_distance_m": 470.0,
   "end_distance_m": 473.0,
   "midpoint_distance_m": 471.5,
   "start_elevation_m": 182.01421683342545,
   "end_elevation_m": 182.99529387446086,
   "start_xy": [
    1175831.4103079992,
    6089083.659643574
   ],
   "end_xy": [
    1175834.218216065,
    6089084.715888003
   ]
  }
 },
 "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": 0.001,
   "obstruction_max_height_m": 2.5,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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-co1",
   "road_pbf": "block-batch-fr-co1.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_E1175-N6089_0m5@21LHDCorseUT-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1176-N6089_0m5@21LHDCorseUT-2025-04-02.tif"
  ],
  "calculated_at": "2026-09-25T00:24:57+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-co1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-co1",
  "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": [
   "E1175-N6089",
   "E1176-N6089"
  ],
  "elevation_blocks": [
   "21LHDCorseUT@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_1175_6090_MNT_O_0M50_LAMB93_IGN78",
   "LHD_FXX_1176_6090_MNT_O_0M50_LAMB93_IGN78"
  ],
  "ign_missions": [
   "21LHDCorseUT"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1175_6090_MNT_O_0M50_LAMB93_IGN78": "2025-04-02",
   "LHD_FXX_1176_6090_MNT_O_0M50_LAMB93_IGN78": "2025-04-02"
  },
  "route_summit_trim_m": 357.1,
  "route_summit_trim_loss_m": 18.2,
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "carriageway": {
   "stations": 44,
   "stations_resolved": 44,
   "width_median_m": 4.75,
   "width_p10_m": 3.22,
   "width_min_m": 2.75,
   "width_max_m": 9.0,
   "bounded_share": 0.25,
   "unbounded_share": 0.75,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.25,
   "window_m": [
    453.0,
    478.0
   ],
   "width_at_max25_m": 4.25,
   "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": 44,
    "stations_resolved": 44,
    "width_median_m": 5.25,
    "width_p10_m": 3.15,
    "width_min_m": 2.25,
    "width_max_m": 12.0,
    "bounded_share": 0.886,
    "unbounded_share": 0.114,
    "confidence_median": 1.0,
    "width_median_bounded_m": 5.0,
    "window_m": [
     453.0,
     478.0
    ],
    "width_at_max25_m": 6.0,
    "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": "Coti-Chiavari",
  "county": "Corse-du-Sud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}