{
 "ocl_version": "0.1.0",
 "name": "Chemin Anddenea",
 "slug": "chemin-anddenea",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 37.454146535304744,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 166.0,
   "end_distance_m": 168.0,
   "start_elevation_m": 230.6925314043306,
   "end_elevation_m": 231.4416143350367,
   "min_gradient_pct": -9.789351728940687,
   "suppressed_max_gradient_pct": 63.382061948685475,
   "suppressed_location_m": [
    22.0,
    24.0
   ],
   "suppressed_min_gradient_pct": -19.74980077441444,
   "suppressed_min_location_m": [
    25.0,
    27.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.776625281209704,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 166.0,
   "end_distance_m": 169.0,
   "start_elevation_m": 230.6925314043306,
   "end_elevation_m": 231.67583016276689,
   "min_gradient_pct": -9.306979940045798,
   "suppressed_max_gradient_pct": 53.37127437173687,
   "suppressed_location_m": [
    21.0,
    24.0
   ],
   "suppressed_min_gradient_pct": -9.327922507799258,
   "suppressed_min_location_m": [
    25.0,
    28.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.3309502619702,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 29.0,
   "end_distance_m": 34.0,
   "start_elevation_m": 207.68242152091605,
   "end_elevation_m": 209.04896903401456,
   "min_gradient_pct": -3.9192205163953986,
   "suppressed_max_gradient_pct": 39.37617833355091,
   "suppressed_location_m": [
    20.0,
    25.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.683797705662357,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 164.0,
   "end_distance_m": 174.0,
   "start_elevation_m": 230.3164354012582,
   "end_elevation_m": 232.68481517182443,
   "min_gradient_pct": 1.332287645907968,
   "suppressed_max_gradient_pct": 28.786371801479902,
   "suppressed_location_m": [
    14.0,
    24.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.807963192313906,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 107.0,
   "end_distance_m": 127.0,
   "start_elevation_m": 221.05036691766858,
   "end_elevation_m": 225.41195955613136,
   "min_gradient_pct": 5.850514526226647,
   "suppressed_max_gradient_pct": 24.201143982906927,
   "suppressed_location_m": [
    5.0,
    25.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.700661864417498,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 102.0,
   "end_distance_m": 127.0,
   "start_elevation_m": 219.986794090027,
   "end_elevation_m": 225.41195955613136,
   "min_gradient_pct": 6.316224561049012
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.61286028651739,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 86.0,
   "end_distance_m": 136.0,
   "start_elevation_m": 216.85137599643755,
   "end_elevation_m": 227.15780613969625,
   "min_gradient_pct": 7.219927857828168
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.16350583539426,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 50.0,
   "end_distance_m": 150.0,
   "start_elevation_m": 210.4870363048836,
   "end_elevation_m": 229.65054214027785,
   "min_gradient_pct": 7.952081700880569
  }
 ],
 "shape": {
  "ascent_concentration": 0.351,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 120.0,
  "shape_class": "sustained"
 },
 "length_m": 302.891642983344,
 "start_elevation_m": 202.62850858154422,
 "end_elevation_m": 243.88958132446027,
 "endpoint_gain_m": 41.26107274291604,
 "overall_gradient_pct": 13.622387312014741,
 "accumulated_ascent_m": 42.25177168635855,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.3309502619702,
   "start_distance_m": 29.0,
   "end_distance_m": 34.0,
   "midpoint_distance_m": 31.5,
   "start_elevation_m": 207.68242152091605,
   "end_elevation_m": 209.04896903401456,
   "start_xy": [
    389378.1285703012,
    6241331.04136876
   ],
   "end_xy": [
    389380.9321169049,
    6241335.181432339
   ]
  },
  "max_10m": {
   "gradient_pct": 23.683797705662357,
   "start_distance_m": 164.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 169.0,
   "start_elevation_m": 230.3164354012582,
   "end_elevation_m": 232.68481517182443,
   "start_xy": [
    389491.66392934613,
    6241312.466974071
   ],
   "end_xy": [
    389499.14408704254,
    6241305.830164534
   ]
  },
  "max_20m": {
   "gradient_pct": 21.807963192313906,
   "start_distance_m": 107.0,
   "end_distance_m": 127.0,
   "midpoint_distance_m": 117.0,
   "start_elevation_m": 221.05036691766858,
   "end_elevation_m": 225.41195955613136,
   "start_xy": [
    389442.4250696895,
    6241341.080714526
   ],
   "end_xy": [
    389459.4528566122,
    6241330.59002949
   ]
  },
  "max_25m": {
   "gradient_pct": 21.700661864417498,
   "start_distance_m": 102.0,
   "end_distance_m": 127.0,
   "midpoint_distance_m": 114.5,
   "start_elevation_m": 219.986794090027,
   "end_elevation_m": 225.41195955613136,
   "start_xy": [
    389438.1681229588,
    6241343.703385784
   ],
   "end_xy": [
    389459.4528566122,
    6241330.59002949
   ]
  },
  "max_50m": {
   "gradient_pct": 20.61286028651739,
   "start_distance_m": 86.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 111.0,
   "start_elevation_m": 216.85137599643755,
   "end_elevation_m": 227.15780613969625,
   "start_xy": [
    389423.87457749795,
    6241350.842846677
   ],
   "end_xy": [
    389467.16555357026,
    6241325.956396309
   ]
  },
  "max_100m": {
   "gradient_pct": 19.16350583539426,
   "start_distance_m": 50.0,
   "end_distance_m": 150.0,
   "midpoint_distance_m": 100.0,
   "start_elevation_m": 210.4870363048836,
   "end_elevation_m": 229.65054214027785,
   "start_xy": [
    389390.6415396296,
    6241347.658086857
   ],
   "end_xy": [
    389479.5006549969,
    6241319.334820001
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.9192205163953986,
   "start_distance_m": 159.0,
   "end_distance_m": 164.0,
   "midpoint_distance_m": 161.5,
   "start_elevation_m": 230.51239642707796,
   "end_elevation_m": 230.3164354012582,
   "start_xy": [
    389487.4303630569,
    6241315.078092376
   ],
   "end_xy": [
    389491.66392934613,
    6241312.466974071
   ]
  },
  "min_10m": {
   "gradient_pct": 1.332287645907968,
   "start_distance_m": 154.0,
   "end_distance_m": 164.0,
   "midpoint_distance_m": 159.0,
   "start_elevation_m": 230.1832066366674,
   "end_elevation_m": 230.3164354012582,
   "start_xy": [
    389483.02496969025,
    6241317.442941057
   ],
   "end_xy": [
    389491.66392934613,
    6241312.466974071
   ]
  },
  "min_20m": {
   "gradient_pct": 5.850514526226647,
   "start_distance_m": 189.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 199.0,
   "start_elevation_m": 234.5930988908609,
   "end_elevation_m": 235.76320179610622,
   "start_xy": [
    389510.36432358716,
    6241295.874950227
   ],
   "end_xy": [
    389526.7976814542,
    6241284.620826876
   ]
  },
  "min_25m": {
   "gradient_pct": 6.316224561049012,
   "start_distance_m": 189.0,
   "end_distance_m": 214.0,
   "midpoint_distance_m": 201.5,
   "start_elevation_m": 234.5930988908609,
   "end_elevation_m": 236.17215503112314,
   "start_xy": [
    389510.36432358716,
    6241295.874950227
   ],
   "end_xy": [
    389531.15186014614,
    6241282.171221346
   ]
  },
  "min_50m": {
   "gradient_pct": 7.219927857828168,
   "start_distance_m": 189.0,
   "end_distance_m": 239.0,
   "midpoint_distance_m": 214.0,
   "start_elevation_m": 234.5930988908609,
   "end_elevation_m": 238.20306281977497,
   "start_xy": [
    389510.36432358716,
    6241295.874950227
   ],
   "end_xy": [
    389553.7774990483,
    6241271.537291486
   ]
  },
  "min_100m": {
   "gradient_pct": 7.952081700880569,
   "start_distance_m": 188.0,
   "end_distance_m": 288.0,
   "midpoint_distance_m": 238.0,
   "start_elevation_m": 234.45501295373344,
   "end_elevation_m": 242.407094654614,
   "start_xy": [
    389509.6163078175,
    6241296.538631181
   ],
   "end_xy": [
    389597.6641380599,
    6241249.766635785
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 37.454146535304744,
   "start_distance_m": 166.0,
   "end_distance_m": 168.0,
   "midpoint_distance_m": 167.0,
   "start_elevation_m": 230.6925314043306,
   "end_elevation_m": 231.4416143350367,
   "start_xy": [
    389493.1599608854,
    6241311.139612163
   ],
   "end_xy": [
    389494.6559924247,
    6241309.812250257
   ]
  },
  "max_3m": {
   "gradient_pct": 32.776625281209704,
   "start_distance_m": 166.0,
   "end_distance_m": 169.0,
   "midpoint_distance_m": 167.5,
   "start_elevation_m": 230.6925314043306,
   "end_elevation_m": 231.67583016276689,
   "start_xy": [
    389493.1599608854,
    6241311.139612163
   ],
   "end_xy": [
    389495.40400819434,
    6241309.148569303
   ]
  }
 },
 "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": 0.02,
   "windows_resited": [
    2.0,
    3.0,
    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": 0.628,
   "obstruction_max_height_m": 20.39,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    20.0,
    25.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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_E389-N6241_0m5@21LHD1FQ-2025-09-15.tif"
  ],
  "calculated_at": "2026-09-20T05:59:20+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": [
   "E389-N6241"
  ],
  "elevation_blocks": [
   "21LHD1FQ@2025-09-15"
  ],
  "ign_dalles": [
   "LHD_FXX_0389_6242_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD1FQ"
  ],
  "ign_editions": [
   "2025-09-15"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0389_6242_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": 19,
   "stations_resolved": 19,
   "width_median_m": 4.25,
   "width_p10_m": 2.1,
   "width_min_m": 1.25,
   "width_max_m": 12.0,
   "bounded_share": 0.211,
   "unbounded_share": 0.789,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.0,
   "window_m": [
    102.0,
    127.0
   ],
   "width_at_max25_m": 4.5,
   "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": 19,
    "stations_resolved": 19,
    "width_median_m": 3.5,
    "width_p10_m": 1.2,
    "width_min_m": 0.5,
    "width_max_m": 7.5,
    "bounded_share": 0.947,
    "unbounded_share": 0.053,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.5,
    "window_m": [
     102.0,
     127.0
    ],
    "width_at_max25_m": 3.25,
    "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": "Ch\u00e9raute",
  "county": "Pyr\u00e9n\u00e9es-Atlantiques",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}