{
 "ocl_version": "0.1.0",
 "name": "Chemin du Boustu",
 "slug": "chemin-du-boustu-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 38.52120939466204,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 551.0,
   "end_distance_m": 553.0,
   "start_elevation_m": 592.9142768137981,
   "end_elevation_m": 593.6847010016913,
   "min_gradient_pct": -6.996228608198862,
   "suppressed_max_gradient_pct": 53.247806061494884,
   "suppressed_location_m": [
    410.0,
    412.0
   ],
   "suppressed_min_gradient_pct": -24.685654279983282,
   "suppressed_min_location_m": [
    451.0,
    453.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 34.930877037262086,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1281.0,
   "end_distance_m": 1284.0,
   "start_elevation_m": 671.6770748371011,
   "end_elevation_m": 672.725001148219,
   "min_gradient_pct": -3.886049696639778,
   "suppressed_max_gradient_pct": 37.92564947356899,
   "suppressed_location_m": [
    409.0,
    412.0
   ],
   "suppressed_min_gradient_pct": -21.26696309048839,
   "suppressed_min_location_m": [
    450.0,
    453.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 30.209943827899224,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1280.0,
   "end_distance_m": 1285.0,
   "start_elevation_m": 671.445446385997,
   "end_elevation_m": 672.955943577392,
   "min_gradient_pct": -2.4086209621782473,
   "suppressed_max_gradient_pct": 39.17161641851408,
   "suppressed_location_m": [
    433.0,
    438.0
   ],
   "suppressed_min_gradient_pct": -9.520304718037096,
   "suppressed_min_location_m": [
    450.0,
    455.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.694832831888334,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1275.0,
   "end_distance_m": 1285.0,
   "start_elevation_m": 670.6864602942031,
   "end_elevation_m": 672.955943577392,
   "min_gradient_pct": -1.800749771178971,
   "suppressed_max_gradient_pct": 30.688741531948835,
   "suppressed_location_m": [
    428.0,
    438.0
   ],
   "suppressed_min_gradient_pct": -6.20073424694624,
   "suppressed_min_location_m": [
    444.0,
    454.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.059291495629168,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1425.0,
   "end_distance_m": 1445.0,
   "start_elevation_m": 694.3506811896755,
   "end_elevation_m": 698.3625394888013,
   "min_gradient_pct": -1.3193477259716246,
   "suppressed_max_gradient_pct": 23.079073699440187,
   "suppressed_location_m": [
    418.0,
    438.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.63905092865025,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1420.0,
   "end_distance_m": 1445.0,
   "start_elevation_m": 693.4527767566387,
   "end_elevation_m": 698.3625394888013,
   "min_gradient_pct": -0.892934044951744,
   "suppressed_max_gradient_pct": 21.583677085792715,
   "suppressed_location_m": [
    414.0,
    439.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.22487488941033,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1395.0,
   "end_distance_m": 1445.0,
   "start_elevation_m": 689.2501020440961,
   "end_elevation_m": 698.3625394888013,
   "min_gradient_pct": 3.25291718867652
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.540952583854505,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1365.0,
   "end_distance_m": 1465.0,
   "start_elevation_m": 684.9728705147485,
   "end_elevation_m": 701.513823098603,
   "min_gradient_pct": 4.092511152222187
  }
 ],
 "shape": {
  "ascent_concentration": 0.336,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 278.0,
  "shape_class": "sustained"
 },
 "length_m": 1713.5240099590785,
 "start_elevation_m": 552.5137357299835,
 "end_elevation_m": 725.5009183959999,
 "endpoint_gain_m": 172.98718266601634,
 "overall_gradient_pct": 10.095404655003785,
 "accumulated_ascent_m": 176.2656402842108,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 30.209943827899224,
   "start_distance_m": 1280.0,
   "end_distance_m": 1285.0,
   "midpoint_distance_m": 1282.5,
   "start_elevation_m": 671.445446385997,
   "end_elevation_m": 672.955943577392,
   "start_xy": [
    448503.98051779554,
    6223729.324957855
   ],
   "end_xy": [
    448498.99721158313,
    6223728.916718717
   ]
  },
  "max_10m": {
   "gradient_pct": 22.694832831888334,
   "start_distance_m": 1275.0,
   "end_distance_m": 1285.0,
   "midpoint_distance_m": 1280.0,
   "start_elevation_m": 670.6864602942031,
   "end_elevation_m": 672.955943577392,
   "start_xy": [
    448508.9638240079,
    6223729.733196992
   ],
   "end_xy": [
    448498.99721158313,
    6223728.916718717
   ]
  },
  "max_20m": {
   "gradient_pct": 20.059291495629168,
   "start_distance_m": 1425.0,
   "end_distance_m": 1445.0,
   "midpoint_distance_m": 1435.0,
   "start_elevation_m": 694.3506811896755,
   "end_elevation_m": 698.3625394888013,
   "start_xy": [
    448362.14852299396,
    6223752.024332209
   ],
   "end_xy": [
    448343.02936552983,
    6223757.89441039
   ]
  },
  "max_25m": {
   "gradient_pct": 19.63905092865025,
   "start_distance_m": 1420.0,
   "end_distance_m": 1445.0,
   "midpoint_distance_m": 1432.5,
   "start_elevation_m": 693.4527767566387,
   "end_elevation_m": 698.3625394888013,
   "start_xy": [
    448366.92831236,
    6223750.556812664
   ],
   "end_xy": [
    448343.02936552983,
    6223757.89441039
   ]
  },
  "max_50m": {
   "gradient_pct": 18.22487488941033,
   "start_distance_m": 1395.0,
   "end_distance_m": 1445.0,
   "midpoint_distance_m": 1420.0,
   "start_elevation_m": 689.2501020440961,
   "end_elevation_m": 698.3625394888013,
   "start_xy": [
    448390.82725919026,
    6223743.219214936
   ],
   "end_xy": [
    448343.02936552983,
    6223757.89441039
   ]
  },
  "max_100m": {
   "gradient_pct": 16.540952583854505,
   "start_distance_m": 1365.0,
   "end_distance_m": 1465.0,
   "midpoint_distance_m": 1415.0,
   "start_elevation_m": 684.9728705147485,
   "end_elevation_m": 701.513823098603,
   "start_xy": [
    448419.9852786527,
    6223736.259702291
   ],
   "end_xy": [
    448324.2791911337,
    6223764.749111507
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.4086209621782473,
   "start_distance_m": 1.0,
   "end_distance_m": 6.0,
   "midpoint_distance_m": 3.5,
   "start_elevation_m": 552.4985211734974,
   "end_elevation_m": 552.3780901253884,
   "start_xy": [
    449102.1420852509,
    6224020.172933011
   ],
   "end_xy": [
    449107.06751150504,
    6224019.312598068
   ]
  },
  "min_10m": {
   "gradient_pct": -1.800749771178971,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 552.5137357299835,
   "end_elevation_m": 552.3336607528656,
   "start_xy": [
    449101.157,
    6224020.345
   ],
   "end_xy": [
    449111.0078525084,
    6224018.624330114
   ]
  },
  "min_20m": {
   "gradient_pct": -1.3193477259716246,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 552.5137357299835,
   "end_elevation_m": 552.2498661847892,
   "start_xy": [
    449101.157,
    6224020.345
   ],
   "end_xy": [
    449120.8587050168,
    6224016.903660227
   ]
  },
  "min_25m": {
   "gradient_pct": -0.892934044951744,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 552.5137357299835,
   "end_elevation_m": 552.2905022187456,
   "start_xy": [
    449101.157,
    6224020.345
   ],
   "end_xy": [
    449125.784131271,
    6224016.043325284
   ]
  },
  "min_50m": {
   "gradient_pct": 3.25291718867652,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 552.5137357299835,
   "end_elevation_m": 554.1401943243218,
   "start_xy": [
    449101.157,
    6224020.345
   ],
   "end_xy": [
    449150.411262542,
    6224011.741650568
   ]
  },
  "min_100m": {
   "gradient_pct": 4.092511152222187,
   "start_distance_m": 53.0,
   "end_distance_m": 153.0,
   "midpoint_distance_m": 103.0,
   "start_elevation_m": 554.61749407446,
   "end_elevation_m": 558.7100052266821,
   "start_xy": [
    449153.3665182945,
    6224011.225449602
   ],
   "end_xy": [
    449102.62235409964,
    6223968.183477141
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 38.52120939466204,
   "start_distance_m": 551.0,
   "end_distance_m": 553.0,
   "midpoint_distance_m": 552.0,
   "start_elevation_m": 592.9142768137981,
   "end_elevation_m": 593.6847010016913,
   "start_xy": [
    448869.3252103197,
    6224184.4486069
   ],
   "end_xy": [
    448867.80295220204,
    6224185.745807818
   ]
  },
  "max_3m": {
   "gradient_pct": 34.930877037262086,
   "start_distance_m": 1281.0,
   "end_distance_m": 1284.0,
   "midpoint_distance_m": 1282.5,
   "start_elevation_m": 671.6770748371011,
   "end_elevation_m": 672.725001148219,
   "start_xy": [
    448502.98385655304,
    6223729.243310027
   ],
   "end_xy": [
    448499.9938728256,
    6223728.998366545
   ]
  }
 },
 "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": 0.004,
   "windows_resited": [
    2.0,
    3.0,
    25.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.057,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.389,
   "obstruction_max_height_m": 29.83,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    409.0,
    414.0
   ],
   [
    430.0,
    460.0
   ],
   [
    480.0,
    540.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "06fa4c370391597f015858e97dcf01ca2f5b3640",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:0048c2bbb24ab95e",
   "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-pyr2",
   "road_pbf": "block-batch-fr-pyr2.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:c54ac68b3f57b41b"
  },
  "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_E448-N6223_0m5@21LHD1GR1-2025-04-03.tif",
   "data/cache/fr/ign-lidarhd_dtm_E448-N6224_0m5@21LHD1GR1-2026-03-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E449-N6223_0m5@21LHD1GR1-2025-04-03.tif",
   "data/cache/fr/ign-lidarhd_dtm_E449-N6224_0m5@21LHD1GR1-2026-03-20.tif"
  ],
  "calculated_at": "2026-09-20T06:18:06+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr2",
  "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": [
   "E448-N6223",
   "E448-N6224",
   "E449-N6223",
   "E449-N6224"
  ],
  "elevation_blocks": [
   "21LHD1GR1@2025-04-03",
   "21LHD1GR1@2026-03-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0448_6224_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0448_6225_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0449_6224_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0449_6225_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD1GR1"
  ],
  "ign_editions": [
   "2025-04-03",
   "2026-03-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0448_6224_MNT_O_0M50_LAMB93_IGN69": "2025-04-03",
   "LHD_FXX_0448_6225_MNT_O_0M50_LAMB93_IGN69": "2026-03-20",
   "LHD_FXX_0449_6224_MNT_O_0M50_LAMB93_IGN69": "2025-04-03",
   "LHD_FXX_0449_6225_MNT_O_0M50_LAMB93_IGN69": "2026-03-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 4,
  "carriageway": {
   "stations": 74,
   "stations_resolved": 74,
   "width_median_m": 5.62,
   "width_p10_m": 3.08,
   "width_min_m": 2.0,
   "width_max_m": 12.0,
   "bounded_share": 0.432,
   "unbounded_share": 0.568,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.25,
   "window_m": [
    1420.0,
    1445.0
   ],
   "width_at_max25_m": 3.75,
   "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": 74,
    "stations_resolved": 74,
    "width_median_m": 3.75,
    "width_p10_m": 0.5,
    "width_min_m": 0.0,
    "width_max_m": 12.0,
    "bounded_share": 0.851,
    "unbounded_share": 0.149,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.0,
    "window_m": [
     1420.0,
     1445.0
    ],
    "width_at_max25_m": 1.88,
    "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": "S\u00e9gus",
  "county": "Hautes-Pyr\u00e9n\u00e9es",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}