{
 "ocl_version": "0.1.0",
 "name": "Chemin du Cassiet",
 "slug": "chemin-du-cassiet",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 45.608624439310574,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 809.0,
   "end_distance_m": 811.0,
   "start_elevation_m": 343.2481912652732,
   "end_elevation_m": 344.1603637540594,
   "min_gradient_pct": -26.58944665354568,
   "suppressed_max_gradient_pct": 61.22169554962227,
   "suppressed_location_m": [
    644.0,
    646.0
   ],
   "suppressed_min_gradient_pct": -37.56388196590592,
   "suppressed_min_location_m": [
    650.0,
    652.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 41.11091040727312,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "no_bench_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 808.0,
   "end_distance_m": 811.0,
   "start_elevation_m": 342.9270364418412,
   "end_elevation_m": 344.1603637540594,
   "min_gradient_pct": -24.38197487598283,
   "suppressed_max_gradient_pct": 55.89194732856981,
   "suppressed_location_m": [
    644.0,
    647.0
   ],
   "suppressed_min_gradient_pct": -24.7709948812106,
   "suppressed_min_location_m": [
    649.0,
    652.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.626334601539156,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 807.0,
   "end_distance_m": 812.0,
   "start_elevation_m": 342.7608270204566,
   "end_elevation_m": 344.44214375053355,
   "min_gradient_pct": -21.615082330122277,
   "suppressed_max_gradient_pct": 36.39973444192037,
   "suppressed_location_m": [
    644.0,
    649.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.33661374560029,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 803.0,
   "end_distance_m": 813.0,
   "start_elevation_m": 341.81320030370915,
   "end_elevation_m": 344.5468616782692,
   "min_gradient_pct": -14.948821456230235,
   "suppressed_max_gradient_pct": 32.34137049420326,
   "suppressed_location_m": [
    753.0,
    763.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.697026881619877,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 794.0,
   "end_distance_m": 814.0,
   "start_elevation_m": 339.7542927405752,
   "end_elevation_m": 344.69369811689916,
   "min_gradient_pct": -9.44267767093379,
   "suppressed_max_gradient_pct": 24.955174841288965,
   "suppressed_location_m": [
    752.0,
    772.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.988037445235477,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 794.0,
   "end_distance_m": 819.0,
   "start_elevation_m": 339.7542927405752,
   "end_elevation_m": 345.75130210188405,
   "min_gradient_pct": -6.104400607692696
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.42805396881215,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 790.0,
   "end_distance_m": 840.0,
   "start_elevation_m": 338.950910584492,
   "end_elevation_m": 350.1649375688981,
   "min_gradient_pct": 1.7923425483999154,
   "suppressed_min_gradient_pct": 0.9689470253651962,
   "suppressed_min_location_m": [
    594.0,
    644.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.705736911413567,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 790.0,
   "end_distance_m": 890.0,
   "start_elevation_m": 338.950910584492,
   "end_elevation_m": 358.6566474959056,
   "min_gradient_pct": 5.744909912963919,
   "suppressed_max_gradient_pct": 21.309136090409137,
   "suppressed_location_m": [
    726.0,
    826.0
   ],
   "suppressed_min_gradient_pct": 3.9823322012908875,
   "suppressed_min_location_m": [
    579.0,
    679.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.369,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 229.0,
  "shape_class": "sustained"
 },
 "length_m": 962.8148166790103,
 "start_elevation_m": 247.97002751611714,
 "end_elevation_m": 368.0867056118171,
 "endpoint_gain_m": 120.11667809569994,
 "overall_gradient_pct": 12.475574327990971,
 "accumulated_ascent_m": 125.58249968596536,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.626334601539156,
   "start_distance_m": 807.0,
   "end_distance_m": 812.0,
   "midpoint_distance_m": 809.5,
   "start_elevation_m": 342.7608270204566,
   "end_elevation_m": 344.44214375053355,
   "start_xy": [
    400765.0476782266,
    6235016.605477407
   ],
   "end_xy": [
    400769.6449304785,
    6235018.57150684
   ]
  },
  "max_10m": {
   "gradient_pct": 27.33661374560029,
   "start_distance_m": 803.0,
   "end_distance_m": 813.0,
   "midpoint_distance_m": 808.0,
   "start_elevation_m": 341.81320030370915,
   "end_elevation_m": 344.5468616782692,
   "start_xy": [
    400761.3698764251,
    6235015.03265386
   ],
   "end_xy": [
    400770.5643809289,
    6235018.964712727
   ]
  },
  "max_20m": {
   "gradient_pct": 24.697026881619877,
   "start_distance_m": 794.0,
   "end_distance_m": 814.0,
   "midpoint_distance_m": 804.0,
   "start_elevation_m": 339.7542927405752,
   "end_elevation_m": 344.69369811689916,
   "start_xy": [
    400753.09482237167,
    6235011.49380088
   ],
   "end_xy": [
    400771.4838313792,
    6235019.357918613
   ]
  },
  "max_25m": {
   "gradient_pct": 23.988037445235477,
   "start_distance_m": 794.0,
   "end_distance_m": 819.0,
   "midpoint_distance_m": 806.5,
   "start_elevation_m": 339.7542927405752,
   "end_elevation_m": 345.75130210188405,
   "start_xy": [
    400753.09482237167,
    6235011.49380088
   ],
   "end_xy": [
    400776.08108363114,
    6235021.323948046
   ]
  },
  "max_50m": {
   "gradient_pct": 22.42805396881215,
   "start_distance_m": 790.0,
   "end_distance_m": 840.0,
   "midpoint_distance_m": 815.0,
   "start_elevation_m": 338.950910584492,
   "end_elevation_m": 350.1649375688981,
   "start_xy": [
    400749.4170205702,
    6235009.920977334
   ],
   "end_xy": [
    400795.3895430891,
    6235029.581271666
   ]
  },
  "max_100m": {
   "gradient_pct": 19.705736911413567,
   "start_distance_m": 790.0,
   "end_distance_m": 890.0,
   "midpoint_distance_m": 840.0,
   "start_elevation_m": 338.950910584492,
   "end_elevation_m": 358.6566474959056,
   "start_xy": [
    400749.4170205702,
    6235009.920977334
   ],
   "end_xy": [
    400841.362065608,
    6235049.241565999
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -21.615082330122277,
   "start_distance_m": 623.0,
   "end_distance_m": 628.0,
   "midpoint_distance_m": 625.5,
   "start_elevation_m": 317.4874340105751,
   "end_elevation_m": 316.406679894069,
   "start_xy": [
    400597.1513469589,
    6234941.348015078
   ],
   "end_xy": [
    400601.7029237164,
    6234943.417592093
   ]
  },
  "min_10m": {
   "gradient_pct": -14.948821456230235,
   "start_distance_m": 621.0,
   "end_distance_m": 631.0,
   "midpoint_distance_m": 626.0,
   "start_elevation_m": 317.44989498735276,
   "end_elevation_m": 315.95501284172974,
   "start_xy": [
    400595.3307162559,
    6234940.520184273
   ],
   "end_xy": [
    400604.4338697709,
    6234944.659338303
   ]
  },
  "min_20m": {
   "gradient_pct": -9.44267767093379,
   "start_distance_m": 611.0,
   "end_distance_m": 631.0,
   "midpoint_distance_m": 621.0,
   "start_elevation_m": 317.8435483759165,
   "end_elevation_m": 315.95501284172974,
   "start_xy": [
    400586.2275627408,
    6234936.381030243
   ],
   "end_xy": [
    400604.4338697709,
    6234944.659338303
   ]
  },
  "min_25m": {
   "gradient_pct": -6.104400607692696,
   "start_distance_m": 606.0,
   "end_distance_m": 631.0,
   "midpoint_distance_m": 618.5,
   "start_elevation_m": 317.4811129936529,
   "end_elevation_m": 315.95501284172974,
   "start_xy": [
    400581.6759859833,
    6234934.311453228
   ],
   "end_xy": [
    400604.4338697709,
    6234944.659338303
   ]
  },
  "min_50m": {
   "gradient_pct": 1.7923425483999154,
   "start_distance_m": 582.0,
   "end_distance_m": 632.0,
   "midpoint_distance_m": 607.0,
   "start_elevation_m": 315.1299423387974,
   "end_elevation_m": 316.02611361299734,
   "start_xy": [
    400560.1036005538,
    6234923.845948505
   ],
   "end_xy": [
    400605.3441851224,
    6234945.073253705
   ]
  },
  "min_100m": {
   "gradient_pct": 5.744909912963919,
   "start_distance_m": 422.0,
   "end_distance_m": 522.0,
   "midpoint_distance_m": 472.0,
   "start_elevation_m": 301.24475241244295,
   "end_elevation_m": 306.98966232540687,
   "start_xy": [
    400435.25753778714,
    6234824.282584952
   ],
   "end_xy": [
    400511.81576605624,
    6234888.507861879
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 45.608624439310574,
   "start_distance_m": 809.0,
   "end_distance_m": 811.0,
   "midpoint_distance_m": 810.0,
   "start_elevation_m": 343.2481912652732,
   "end_elevation_m": 344.1603637540594,
   "start_xy": [
    400766.88657912734,
    6235017.39188918
   ],
   "end_xy": [
    400768.7254800281,
    6235018.1783009535
   ]
  },
  "max_3m": {
   "gradient_pct": 41.11091040727312,
   "start_distance_m": 808.0,
   "end_distance_m": 811.0,
   "midpoint_distance_m": 809.5,
   "start_elevation_m": 342.9270364418412,
   "end_elevation_m": 344.1603637540594,
   "start_xy": [
    400765.967128677,
    6235016.998683293
   ],
   "end_xy": [
    400768.7254800281,
    6235018.1783009535
   ]
  }
 },
 "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": 0.019,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    50.0,
    100.0
   ],
   "minima_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.144,
   "windows_resited": [
    5.0,
    10.0,
    20.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.637,
   "obstruction_max_height_m": 25.07,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    634.0,
    639.0
   ],
   [
    643.0,
    648.0
   ],
   [
    650.0,
    770.0
   ],
   [
    782.0,
    787.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "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-pyr1",
   "road_pbf": "block-batch-fr-pyr1.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_E400-N6234_0m5@21LHD1FQ-2025-09-15.tif",
   "data/cache/fr/ign-lidarhd_dtm_E400-N6235_0m5@21LHD1FQ-2025-09-15.tif"
  ],
  "calculated_at": "2026-09-20T06:02:34+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr1",
  "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": [
   "E400-N6234",
   "E400-N6235"
  ],
  "elevation_blocks": [
   "21LHD1FQ@2025-09-15"
  ],
  "ign_dalles": [
   "LHD_FXX_0400_6235_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0400_6236_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD1FQ"
  ],
  "ign_editions": [
   "2025-09-15"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0400_6235_MNT_O_0M50_LAMB93_IGN69": "2025-09-15",
   "LHD_FXX_0400_6236_MNT_O_0M50_LAMB93_IGN69": "2025-09-15"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 45,
   "stations_resolved": 45,
   "width_median_m": 4.5,
   "width_p10_m": 2.1,
   "width_min_m": 1.25,
   "width_max_m": 10.75,
   "bounded_share": 0.378,
   "unbounded_share": 0.622,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.5,
   "window_m": [
    794.0,
    819.0
   ],
   "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": 45,
    "stations_resolved": 45,
    "width_median_m": 2.25,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.956,
    "unbounded_share": 0.044,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.0,
    "window_m": [
     794.0,
     819.0
    ],
    "width_at_max25_m": 1.25,
    "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": "Ance-F\u00e9as",
  "county": "Pyr\u00e9n\u00e9es-Atlantiques",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}