{
 "ocl_version": "0.1.0",
 "name": "Chemin du Camias",
 "slug": "chemin-du-camias",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 40.47986757715876,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 449.0,
   "end_distance_m": 451.0,
   "start_elevation_m": 329.32843816873043,
   "end_elevation_m": 330.1380355202736,
   "min_gradient_pct": -26.17745753200893,
   "suppressed_max_gradient_pct": 116.37005921313062,
   "suppressed_location_m": [
    0.0,
    2.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.04786551988658,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 449.0,
   "end_distance_m": 452.0,
   "start_elevation_m": 329.32843816873043,
   "end_elevation_m": 330.409874134327,
   "min_gradient_pct": -21.40464700480796,
   "suppressed_max_gradient_pct": 115.74885874702356,
   "suppressed_location_m": [
    0.0,
    3.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.256165160480805,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 447.0,
   "end_distance_m": 452.0,
   "start_elevation_m": 328.947065876303,
   "end_elevation_m": 330.409874134327,
   "min_gradient_pct": -10.895196427013616,
   "suppressed_max_gradient_pct": 77.1165014815972,
   "suppressed_location_m": [
    0.0,
    5.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.40936763381842,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 442.0,
   "end_distance_m": 452.0,
   "start_elevation_m": 327.9689373709452,
   "end_elevation_m": 330.409874134327,
   "min_gradient_pct": -7.108566845925566,
   "suppressed_max_gradient_pct": 38.07972518255781,
   "suppressed_location_m": [
    0.0,
    10.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.101647040312628,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 432.0,
   "end_distance_m": 452.0,
   "start_elevation_m": 326.1895447262645,
   "end_elevation_m": 330.409874134327,
   "min_gradient_pct": -3.9168364043973725
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.986194449716322,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 427.0,
   "end_distance_m": 452.0,
   "start_elevation_m": 325.16332552189795,
   "end_elevation_m": 330.409874134327,
   "min_gradient_pct": -3.7981385859091006
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.017283714094674,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 402.0,
   "end_distance_m": 452.0,
   "start_elevation_m": 320.9012322772797,
   "end_elevation_m": 330.409874134327,
   "min_gradient_pct": -1.2670258110600798
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.04440421261893,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 352.0,
   "end_distance_m": 452.0,
   "start_elevation_m": 313.3654699217081,
   "end_elevation_m": 330.409874134327,
   "min_gradient_pct": 2.8148879745447744,
   "suppressed_min_gradient_pct": 1.5819891915356266,
   "suppressed_min_location_m": [
    4.0,
    104.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.376,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 199.0,
  "shape_class": "sustained"
 },
 "length_m": 1309.928668385272,
 "start_elevation_m": 281.3681340331497,
 "end_elevation_m": 401.0606200561493,
 "endpoint_gain_m": 119.69248602299956,
 "overall_gradient_pct": 9.137328536411266,
 "accumulated_ascent_m": 122.29696933193662,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.256165160480805,
   "start_distance_m": 447.0,
   "end_distance_m": 452.0,
   "midpoint_distance_m": 449.5,
   "start_elevation_m": 328.947065876303,
   "end_elevation_m": 330.409874134327,
   "start_xy": [
    532592.4613704634,
    6231283.983137837
   ],
   "end_xy": [
    532589.012715791,
    6231287.603466683
   ]
  },
  "max_10m": {
   "gradient_pct": 24.40936763381842,
   "start_distance_m": 442.0,
   "end_distance_m": 452.0,
   "midpoint_distance_m": 447.0,
   "start_elevation_m": 327.9689373709452,
   "end_elevation_m": 330.409874134327,
   "start_xy": [
    532595.9100251356,
    6231280.362808991
   ],
   "end_xy": [
    532589.012715791,
    6231287.603466683
   ]
  },
  "max_20m": {
   "gradient_pct": 21.101647040312628,
   "start_distance_m": 432.0,
   "end_distance_m": 452.0,
   "midpoint_distance_m": 442.0,
   "start_elevation_m": 326.1895447262645,
   "end_elevation_m": 330.409874134327,
   "start_xy": [
    532602.6004777438,
    6231272.970331973
   ],
   "end_xy": [
    532589.012715791,
    6231287.603466683
   ]
  },
  "max_25m": {
   "gradient_pct": 20.986194449716322,
   "start_distance_m": 427.0,
   "end_distance_m": 452.0,
   "midpoint_distance_m": 439.5,
   "start_elevation_m": 325.16332552189795,
   "end_elevation_m": 330.409874134327,
   "start_xy": [
    532605.0202243336,
    6231268.594851836
   ],
   "end_xy": [
    532589.012715791,
    6231287.603466683
   ]
  },
  "max_50m": {
   "gradient_pct": 19.017283714094674,
   "start_distance_m": 402.0,
   "end_distance_m": 452.0,
   "midpoint_distance_m": 427.0,
   "start_elevation_m": 320.9012322772797,
   "end_elevation_m": 330.409874134327,
   "start_xy": [
    532617.1189572824,
    6231246.717451143
   ],
   "end_xy": [
    532589.012715791,
    6231287.603466683
   ]
  },
  "max_100m": {
   "gradient_pct": 17.04440421261893,
   "start_distance_m": 352.0,
   "end_distance_m": 452.0,
   "midpoint_distance_m": 402.0,
   "start_elevation_m": 313.3654699217081,
   "end_elevation_m": 330.409874134327,
   "start_xy": [
    532635.9473832429,
    6231200.521896191
   ],
   "end_xy": [
    532589.012715791,
    6231287.603466683
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -10.895196427013616,
   "start_distance_m": 1304.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1306.5,
   "start_elevation_m": 401.72668690357995,
   "end_elevation_m": 401.18192708222927,
   "start_xy": [
    532487.771224328,
    6232014.054974038
   ],
   "end_xy": [
    532491.0845954062,
    6232017.799513008
   ]
  },
  "min_10m": {
   "gradient_pct": -7.108566845925566,
   "start_distance_m": 1299.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1304.0,
   "start_elevation_m": 401.8927837668218,
   "end_elevation_m": 401.18192708222927,
   "start_xy": [
    532484.4578532497,
    6232010.310435068
   ],
   "end_xy": [
    532491.0845954062,
    6232017.799513008
   ]
  },
  "min_20m": {
   "gradient_pct": -3.9168364043973725,
   "start_distance_m": 1289.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1299.0,
   "start_elevation_m": 401.96529436310874,
   "end_elevation_m": 401.18192708222927,
   "start_xy": [
    532478.1520578003,
    6232002.620855257
   ],
   "end_xy": [
    532491.0845954062,
    6232017.799513008
   ]
  },
  "min_25m": {
   "gradient_pct": -3.7981385859091006,
   "start_distance_m": 1284.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1296.5,
   "start_elevation_m": 402.13146172870654,
   "end_elevation_m": 401.18192708222927,
   "start_xy": [
    532476.2399663134,
    6231998.0009087045
   ],
   "end_xy": [
    532491.0845954062,
    6232017.799513008
   ]
  },
  "min_50m": {
   "gradient_pct": -1.2670258110600798,
   "start_distance_m": 1259.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1284.0,
   "start_elevation_m": 401.8154399877593,
   "end_elevation_m": 401.18192708222927,
   "start_xy": [
    532466.9342274581,
    6231974.831936632
   ],
   "end_xy": [
    532491.0845954062,
    6232017.799513008
   ]
  },
  "min_100m": {
   "gradient_pct": 2.8148879745447744,
   "start_distance_m": 1209.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1259.0,
   "start_elevation_m": 398.3670391076845,
   "end_elevation_m": 401.18192708222927,
   "start_xy": [
    532460.0355479469,
    6231925.310141219
   ],
   "end_xy": [
    532491.0845954062,
    6232017.799513008
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 40.47986757715876,
   "start_distance_m": 449.0,
   "end_distance_m": 451.0,
   "midpoint_distance_m": 450.0,
   "start_elevation_m": 329.32843816873043,
   "end_elevation_m": 330.1380355202736,
   "start_xy": [
    532591.0819085945,
    6231285.431269376
   ],
   "end_xy": [
    532589.7024467255,
    6231286.879400914
   ]
  },
  "max_3m": {
   "gradient_pct": 36.04786551988658,
   "start_distance_m": 449.0,
   "end_distance_m": 452.0,
   "midpoint_distance_m": 450.5,
   "start_elevation_m": 329.32843816873043,
   "end_elevation_m": 330.409874134327,
   "start_xy": [
    532591.0819085945,
    6231285.431269376
   ],
   "end_xy": [
    532589.012715791,
    6231287.603466683
   ]
  }
 },
 "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": 0.016,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    100.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.18,
   "obstruction_max_height_m": 20.76,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "descends_at_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-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_E532-N6230_0m5@21LHD1HR1-2025-04-18.tif",
   "data/cache/fr/ign-lidarhd_dtm_E532-N6231_0m5@21LHD1HR1-2025-04-18.tif",
   "data/cache/fr/ign-lidarhd_dtm_E532-N6232_0m5@21LHD1HR1-2025-04-18.tif"
  ],
  "calculated_at": "2026-09-20T06:14:39+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": [
   "E532-N6230",
   "E532-N6231",
   "E532-N6232"
  ],
  "elevation_blocks": [
   "21LHD1HR1@2025-04-18"
  ],
  "ign_dalles": [
   "LHD_FXX_0532_6231_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0532_6232_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0532_6233_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD1HR1"
  ],
  "ign_editions": [
   "2025-04-18"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0532_6231_MNT_O_0M50_LAMB93_IGN69": "2025-04-18",
   "LHD_FXX_0532_6232_MNT_O_0M50_LAMB93_IGN69": "2025-04-18",
   "LHD_FXX_0532_6233_MNT_O_0M50_LAMB93_IGN69": "2025-04-18"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 4,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "carriageway": {
   "stations": 59,
   "stations_resolved": 59,
   "width_median_m": 4.5,
   "width_p10_m": 2.25,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.339,
   "unbounded_share": 0.661,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.5,
   "window_m": [
    427.0,
    452.0
   ],
   "width_at_max25_m": 2.5,
   "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": 59,
    "stations_resolved": 59,
    "width_median_m": 7.5,
    "width_p10_m": 2.5,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.559,
    "unbounded_share": 0.441,
    "confidence_median": 0.958,
    "width_median_bounded_m": 4.0,
    "window_m": [
     427.0,
     452.0
    ],
    "width_at_max25_m": 3.0,
    "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": "Mancioux",
  "county": "Haute-Garonne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}