{
 "ocl_version": "0.1.0",
 "name": "Chemin de Combe Saint-Peyre",
 "slug": "chemin-de-combe-saint-peyre",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.07859352469933,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 183.0,
   "end_distance_m": 185.0,
   "start_elevation_m": 235.1751970968219,
   "end_elevation_m": 235.8367689673159,
   "min_gradient_pct": -34.172283113299784,
   "suppressed_max_gradient_pct": 44.463806283917506,
   "suppressed_location_m": [
    602.0,
    604.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.871341520545986,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 581.0,
   "end_distance_m": 584.0,
   "start_elevation_m": 249.92306360854735,
   "end_elevation_m": 250.81920385416373,
   "min_gradient_pct": -35.84824008198003,
   "suppressed_max_gradient_pct": 36.35157767580779,
   "suppressed_location_m": [
    601.0,
    604.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.324245978424187,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 579.0,
   "end_distance_m": 584.0,
   "start_elevation_m": 249.40299155524252,
   "end_elevation_m": 250.81920385416373,
   "min_gradient_pct": -28.1493174173454,
   "suppressed_max_gradient_pct": 31.87246607901841,
   "suppressed_location_m": [
    601.0,
    606.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.752766204226646,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 578.0,
   "end_distance_m": 588.0,
   "start_elevation_m": 249.14920219826465,
   "end_elevation_m": 251.8244788186873,
   "min_gradient_pct": -22.332605723382528
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.505567158396985,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 577.0,
   "end_distance_m": 597.0,
   "start_elevation_m": 248.93494983006738,
   "end_elevation_m": 253.23606326174678,
   "min_gradient_pct": -16.298974115656222
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.26056719336964,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 572.0,
   "end_distance_m": 597.0,
   "start_elevation_m": 248.17092146340437,
   "end_elevation_m": 253.23606326174678,
   "min_gradient_pct": -14.107212597825992,
   "suppressed_max_gradient_pct": 21.343038868409394,
   "suppressed_location_m": [
    579.0,
    604.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.330220718087503,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 616.0,
   "end_distance_m": 666.0,
   "start_elevation_m": 256.56783049454566,
   "end_elevation_m": 265.2329408535894,
   "min_gradient_pct": -8.233853015729267,
   "suppressed_max_gradient_pct": 18.725322334890336,
   "suppressed_location_m": [
    569.0,
    619.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 10.750493817602633,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 497.0,
   "end_distance_m": 597.0,
   "start_elevation_m": 242.48556944414415,
   "end_elevation_m": 253.23606326174678,
   "min_gradient_pct": -3.8447441326805745,
   "suppressed_max_gradient_pct": 17.893591738999618,
   "suppressed_location_m": [
    567.0,
    667.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.577,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 138.0,
  "shape_class": "stepped"
 },
 "length_m": 695.052867570114,
 "start_elevation_m": 234.60326930053833,
 "end_elevation_m": 267.33576528784346,
 "endpoint_gain_m": 32.73249598730513,
 "overall_gradient_pct": 4.709353419652385,
 "accumulated_ascent_m": 41.44916155344666,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.324245978424187,
   "start_distance_m": 579.0,
   "end_distance_m": 584.0,
   "midpoint_distance_m": 581.5,
   "start_elevation_m": 249.40299155524252,
   "end_elevation_m": 250.81920385416373,
   "start_xy": [
    573140.6690949865,
    6356940.392021432
   ],
   "end_xy": [
    573137.4290979204,
    6356944.200225603
   ]
  },
  "max_10m": {
   "gradient_pct": 26.752766204226646,
   "start_distance_m": 578.0,
   "end_distance_m": 588.0,
   "midpoint_distance_m": 583.0,
   "start_elevation_m": 249.14920219826465,
   "end_elevation_m": 251.8244788186873,
   "start_xy": [
    573141.3170943997,
    6356939.630380597
   ],
   "end_xy": [
    573134.8371002676,
    6356947.24678894
   ]
  },
  "max_20m": {
   "gradient_pct": 21.505567158396985,
   "start_distance_m": 577.0,
   "end_distance_m": 597.0,
   "midpoint_distance_m": 587.0,
   "start_elevation_m": 248.93494983006738,
   "end_elevation_m": 253.23606326174678,
   "start_xy": [
    573141.9650938129,
    6356938.868739762
   ],
   "end_xy": [
    573129.0051055489,
    6356954.101556449
   ]
  },
  "max_25m": {
   "gradient_pct": 20.26056719336964,
   "start_distance_m": 572.0,
   "end_distance_m": 597.0,
   "midpoint_distance_m": 584.5,
   "start_elevation_m": 248.17092146340437,
   "end_elevation_m": 253.23606326174678,
   "start_xy": [
    573145.0265753993,
    6356934.923088593
   ],
   "end_xy": [
    573129.0051055489,
    6356954.101556449
   ]
  },
  "max_50m": {
   "gradient_pct": 17.330220718087503,
   "start_distance_m": 616.0,
   "end_distance_m": 666.0,
   "midpoint_distance_m": 641.0,
   "start_elevation_m": 256.56783049454566,
   "end_elevation_m": 265.2329408535894,
   "start_xy": [
    573116.6931166981,
    6356968.5727323005
   ],
   "end_xy": [
    573082.5844539822,
    6357005.034192355
   ]
  },
  "max_100m": {
   "gradient_pct": 10.750493817602633,
   "start_distance_m": 497.0,
   "end_distance_m": 597.0,
   "midpoint_distance_m": 547.0,
   "start_elevation_m": 242.48556944414415,
   "end_elevation_m": 253.23606326174678,
   "start_xy": [
    573176.4726861842,
    6356869.016481385
   ],
   "end_xy": [
    573129.0051055489,
    6356954.101556449
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -28.1493174173454,
   "start_distance_m": 208.0,
   "end_distance_m": 213.0,
   "midpoint_distance_m": 210.5,
   "start_elevation_m": 236.36901697721152,
   "end_elevation_m": 234.96155110634425,
   "start_xy": [
    573322.3470674491,
    6356637.0988771375
   ],
   "end_xy": [
    573317.5958824398,
    6356638.6565167
   ]
  },
  "min_10m": {
   "gradient_pct": -22.332605723382528,
   "start_distance_m": 201.0,
   "end_distance_m": 211.0,
   "midpoint_distance_m": 206.0,
   "start_elevation_m": 237.52683034709037,
   "end_elevation_m": 235.29356977475211,
   "start_xy": [
    573328.9987264622,
    6356634.91818175
   ],
   "end_xy": [
    573319.4963564435,
    6356638.033460875
   ]
  },
  "min_20m": {
   "gradient_pct": -16.298974115656222,
   "start_distance_m": 201.0,
   "end_distance_m": 221.0,
   "midpoint_distance_m": 211.0,
   "start_elevation_m": 237.52683034709037,
   "end_elevation_m": 234.26703552395912,
   "start_xy": [
    573328.9987264622,
    6356634.91818175
   ],
   "end_xy": [
    573309.9939864248,
    6356641.14874
   ]
  },
  "min_25m": {
   "gradient_pct": -14.107212597825992,
   "start_distance_m": 201.0,
   "end_distance_m": 226.0,
   "midpoint_distance_m": 213.5,
   "start_elevation_m": 237.52683034709037,
   "end_elevation_m": 234.00002719763387,
   "start_xy": [
    573328.9987264622,
    6356634.91818175
   ],
   "end_xy": [
    573305.2428014155,
    6356642.706379563
   ]
  },
  "min_50m": {
   "gradient_pct": -8.233853015729267,
   "start_distance_m": 198.0,
   "end_distance_m": 248.0,
   "midpoint_distance_m": 223.0,
   "start_elevation_m": 237.5772774356872,
   "end_elevation_m": 233.46035092782256,
   "start_xy": [
    573331.8494374679,
    6356633.9835980125
   ],
   "end_xy": [
    573285.8422871301,
    6356652.517228663
   ]
  },
  "min_100m": {
   "gradient_pct": -3.8447441326805745,
   "start_distance_m": 198.0,
   "end_distance_m": 298.0,
   "midpoint_distance_m": 248.0,
   "start_elevation_m": 237.5772774356872,
   "end_elevation_m": 233.73253330300662,
   "start_xy": [
    573331.8494374679,
    6356633.9835980125
   ],
   "end_xy": [
    573252.1449244135,
    6356687.275933501
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.07859352469933,
   "start_distance_m": 183.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 184.0,
   "start_elevation_m": 235.1751970968219,
   "end_elevation_m": 235.8367689673159,
   "start_xy": [
    573345.7156735986,
    6356628.467244455
   ],
   "end_xy": [
    573344.0045720972,
    6356629.502682358
   ]
  },
  "max_3m": {
   "gradient_pct": 29.871341520545986,
   "start_distance_m": 581.0,
   "end_distance_m": 584.0,
   "midpoint_distance_m": 582.5,
   "start_elevation_m": 249.92306360854735,
   "end_elevation_m": 250.81920385416373,
   "start_xy": [
    573139.3730961601,
    6356941.9153031
   ],
   "end_xy": [
    573137.4290979204,
    6356944.200225603
   ]
  }
 },
 "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": {
  "no_bench_suppression": {
   "masked_fraction": 0.118,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.132,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 601.0,
     "end_m": 606.0,
     "raw_pct": 31.87,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.647,
   "obstruction_max_height_m": 22.17,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    110.0,
    160.0
   ],
   [
    330.0,
    360.0
   ],
   [
    599.0,
    608.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1",
   "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-mc1",
   "road_pbf": "block-batch-fr-mc1.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:af4eae1f5df9e232"
  },
  "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_E573-N6356_0m5@21LHD2IO-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E573-N6357_0m5@21LHD2IO-2025-04-02.tif"
  ],
  "calculated_at": "2026-09-22T16:54:06+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc1",
  "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": [
   "E573-N6356",
   "E573-N6357"
  ],
  "elevation_blocks": [
   "21LHD2IO@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_0573_6357_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0573_6358_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD2IO"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0573_6357_MNT_O_0M50_LAMB93_IGN69": "2025-04-02",
   "LHD_FXX_0573_6358_MNT_O_0M50_LAMB93_IGN69": "2025-04-02"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 34,
   "stations_resolved": 34,
   "width_median_m": 3.0,
   "width_p10_m": 1.25,
   "width_min_m": 1.0,
   "width_max_m": 9.5,
   "bounded_share": 0.588,
   "unbounded_share": 0.412,
   "confidence_median": 0.543,
   "width_median_bounded_m": 2.62,
   "window_m": [
    572.0,
    597.0
   ],
   "width_at_max25_m": 2.0,
   "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": 34,
    "stations_resolved": 34,
    "width_median_m": 2.12,
    "width_p10_m": 0.5,
    "width_min_m": 0.5,
    "width_max_m": 9.0,
    "bounded_share": 0.971,
    "unbounded_share": 0.029,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.0,
    "window_m": [
     572.0,
     597.0
    ],
    "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": "Saint-Paul-Flaugnac",
  "county": "Lot",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}