{
 "ocl_version": "0.1.0",
 "name": "A Teppa",
 "slug": "a-teppa",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.16511031516586,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 206.0,
   "end_distance_m": 208.0,
   "start_elevation_m": 204.93366241269774,
   "end_elevation_m": 205.43696461900106,
   "min_gradient_pct": -7.374332852292298,
   "suppressed_max_gradient_pct": 114.04510787592699,
   "suppressed_location_m": [
    1.0,
    3.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.75961717055668,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 206.0,
   "end_distance_m": 209.0,
   "start_elevation_m": 204.93366241269774,
   "end_elevation_m": 205.67645092781444,
   "min_gradient_pct": -6.644311159161968,
   "suppressed_max_gradient_pct": 75.87481463341514,
   "suppressed_location_m": [
    1.0,
    4.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.41003618349555,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 204.0,
   "end_distance_m": 209.0,
   "start_elevation_m": 204.45594911863967,
   "end_elevation_m": 205.67645092781444,
   "min_gradient_pct": -6.567457134040637,
   "suppressed_max_gradient_pct": 46.92071940734934,
   "suppressed_location_m": [
    20.0,
    25.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.801208365852062,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 199.0,
   "end_distance_m": 209.0,
   "start_elevation_m": 203.29633009122924,
   "end_elevation_m": 205.67645092781444,
   "min_gradient_pct": -6.065108002134707,
   "suppressed_max_gradient_pct": 28.575263317991073,
   "suppressed_location_m": [
    20.0,
    30.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.234857619902698,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 189.0,
   "end_distance_m": 209.0,
   "start_elevation_m": 201.0294794038339,
   "end_elevation_m": 205.67645092781444,
   "min_gradient_pct": -5.433979560582856
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.760963256724267,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 184.0,
   "end_distance_m": 209.0,
   "start_elevation_m": 199.98621011363338,
   "end_elevation_m": 205.67645092781444,
   "min_gradient_pct": -5.009041339216878
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.77261783791971,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 186.0,
   "end_distance_m": 236.0,
   "start_elevation_m": 200.38900332240388,
   "end_elevation_m": 211.27531224136374,
   "min_gradient_pct": -3.032520868757672
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.633454251006327,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 189.0,
   "end_distance_m": 289.0,
   "start_elevation_m": 201.0294794038339,
   "end_elevation_m": 220.66293365484023,
   "min_gradient_pct": -0.5977519342055757
  }
 ],
 "shape": {
  "ascent_concentration": 0.492,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 194.0,
  "shape_class": "stepped"
 },
 "length_m": 499.1781614027091,
 "start_elevation_m": 180.58580866958764,
 "end_elevation_m": 228.17048227832026,
 "endpoint_gain_m": 47.58467360873263,
 "overall_gradient_pct": 9.532603244304184,
 "accumulated_ascent_m": 50.78522077015265,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.41003618349555,
   "start_distance_m": 204.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 206.5,
   "start_elevation_m": 204.45594911863967,
   "end_elevation_m": 205.67645092781444,
   "start_xy": [
    1185887.17079307,
    6111908.388947503
   ],
   "end_xy": [
    1185891.493909536,
    6111910.810739148
   ]
  },
  "max_10m": {
   "gradient_pct": 23.801208365852062,
   "start_distance_m": 199.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 204.0,
   "start_elevation_m": 203.29633009122924,
   "end_elevation_m": 205.67645092781444,
   "start_xy": [
    1185882.4927704313,
    6111906.929891327
   ],
   "end_xy": [
    1185891.493909536,
    6111910.810739148
   ]
  },
  "max_20m": {
   "gradient_pct": 23.234857619902698,
   "start_distance_m": 189.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 199.0,
   "start_elevation_m": 201.0294794038339,
   "end_elevation_m": 205.67645092781444,
   "start_xy": [
    1185872.525802589,
    6111906.11776324
   ],
   "end_xy": [
    1185891.493909536,
    6111910.810739148
   ]
  },
  "max_25m": {
   "gradient_pct": 22.760963256724267,
   "start_distance_m": 184.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 196.5,
   "start_elevation_m": 199.98621011363338,
   "end_elevation_m": 205.67645092781444,
   "start_xy": [
    1185867.5589051687,
    6111906.135358249
   ],
   "end_xy": [
    1185891.493909536,
    6111910.810739148
   ]
  },
  "max_50m": {
   "gradient_pct": 21.77261783791971,
   "start_distance_m": 186.0,
   "end_distance_m": 236.0,
   "midpoint_distance_m": 211.0,
   "start_elevation_m": 200.38900332240388,
   "end_elevation_m": 211.27531224136374,
   "start_xy": [
    1185869.5357122363,
    6111905.874124814
   ],
   "end_xy": [
    1185903.6826838092,
    6111934.535947205
   ]
  },
  "max_100m": {
   "gradient_pct": 19.633454251006327,
   "start_distance_m": 189.0,
   "end_distance_m": 289.0,
   "midpoint_distance_m": 239.0,
   "start_elevation_m": 201.0294794038339,
   "end_elevation_m": 220.66293365484023,
   "start_xy": [
    1185872.525802589,
    6111906.11776324
   ],
   "end_xy": [
    1185953.1154003388,
    6111951.974210998
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.567457134040637,
   "start_distance_m": 331.0,
   "end_distance_m": 336.0,
   "midpoint_distance_m": 333.5,
   "start_elevation_m": 227.5804941039359,
   "end_elevation_m": 227.25212124723387,
   "start_xy": [
    1185993.160696297,
    6111964.400640768
   ],
   "end_xy": [
    1185997.296597897,
    6111967.21032366
   ]
  },
  "min_10m": {
   "gradient_pct": -6.065108002134707,
   "start_distance_m": 330.0,
   "end_distance_m": 340.0,
   "midpoint_distance_m": 335.0,
   "start_elevation_m": 227.63040576637914,
   "end_elevation_m": 227.02389496616567,
   "start_xy": [
    1185992.324517025,
    6111963.859339295
   ],
   "end_xy": [
    1186000.605319177,
    6111969.458069974
   ]
  },
  "min_20m": {
   "gradient_pct": -5.433979560582856,
   "start_distance_m": 330.0,
   "end_distance_m": 350.0,
   "midpoint_distance_m": 340.0,
   "start_elevation_m": 227.63040576637914,
   "end_elevation_m": 226.54360985426257,
   "start_xy": [
    1185992.324517025,
    6111963.859339295
   ],
   "end_xy": [
    1186008.9551173798,
    6111974.960524753
   ]
  },
  "min_25m": {
   "gradient_pct": -5.009041339216878,
   "start_distance_m": 330.0,
   "end_distance_m": 355.0,
   "midpoint_distance_m": 342.5,
   "start_elevation_m": 227.63040576637914,
   "end_elevation_m": 226.37814543157492,
   "start_xy": [
    1185992.324517025,
    6111963.859339295
   ],
   "end_xy": [
    1186013.2623637642,
    6111977.429103635
   ]
  },
  "min_50m": {
   "gradient_pct": -3.032520868757672,
   "start_distance_m": 329.0,
   "end_distance_m": 379.0,
   "midpoint_distance_m": 354.0,
   "start_elevation_m": 227.66174787771473,
   "end_elevation_m": 226.1454874433359,
   "start_xy": [
    1185991.349888947,
    6111963.635508757
   ],
   "end_xy": [
    1186036.8374016187,
    6111978.704918121
   ]
  },
  "min_100m": {
   "gradient_pct": -0.5977519342055757,
   "start_distance_m": 328.0,
   "end_distance_m": 428.0,
   "midpoint_distance_m": 378.0,
   "start_elevation_m": 227.64398518487417,
   "end_elevation_m": 227.0462332506686,
   "start_xy": [
    1185990.375260869,
    6111963.411678218
   ],
   "end_xy": [
    1186074.582009954,
    6111948.794590186
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.16511031516586,
   "start_distance_m": 206.0,
   "end_distance_m": 208.0,
   "midpoint_distance_m": 207.0,
   "start_elevation_m": 204.93366241269774,
   "end_elevation_m": 205.43696461900106,
   "start_xy": [
    1185888.9416544915,
    6111909.318490308
   ],
   "end_xy": [
    1185890.712515913,
    6111910.248033112
   ]
  },
  "max_3m": {
   "gradient_pct": 24.75961717055668,
   "start_distance_m": 206.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 207.5,
   "start_elevation_m": 204.93366241269774,
   "end_elevation_m": 205.67645092781444,
   "start_xy": [
    1185888.9416544915,
    6111909.318490308
   ],
   "end_xy": [
    1185891.493909536,
    6111910.810739148
   ]
  }
 },
 "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": 0.022,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.188,
   "obstruction_max_height_m": 11.67,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    4.0
   ],
   [
    19.0,
    24.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "33abfff569d4360542e616d0d42c1b94d0a711fa",
   "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-co1",
   "road_pbf": "block-batch-fr-co1.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": "sha256:2a717d675f2607cc"
  },
  "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_E1185-N6111_0m5@21LHDCorseUT-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1185-N6112_0m5@21LHDCorseUT-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1186-N6111_0m5@21LHDCorseUT-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1186-N6112_0m5@21LHDCorseUT-2025-04-02.tif"
  ],
  "calculated_at": "2026-09-25T00:22:18+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-co1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-co1",
  "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": [
   "E1185-N6111",
   "E1185-N6112",
   "E1186-N6111",
   "E1186-N6112"
  ],
  "elevation_blocks": [
   "21LHDCorseUT@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_1185_6112_MNT_O_0M50_LAMB93_IGN78",
   "LHD_FXX_1185_6113_MNT_O_0M50_LAMB93_IGN78",
   "LHD_FXX_1186_6112_MNT_O_0M50_LAMB93_IGN78",
   "LHD_FXX_1186_6113_MNT_O_0M50_LAMB93_IGN78"
  ],
  "ign_missions": [
   "21LHDCorseUT"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1185_6112_MNT_O_0M50_LAMB93_IGN78": "2025-04-02",
   "LHD_FXX_1185_6113_MNT_O_0M50_LAMB93_IGN78": "2025-04-02",
   "LHD_FXX_1186_6112_MNT_O_0M50_LAMB93_IGN78": "2025-04-02",
   "LHD_FXX_1186_6113_MNT_O_0M50_LAMB93_IGN78": "2025-04-02"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 2,
  "carriageway": {
   "stations": 26,
   "stations_resolved": 26,
   "width_median_m": 4.75,
   "width_p10_m": 3.12,
   "width_min_m": 2.25,
   "width_max_m": 8.5,
   "bounded_share": 0.808,
   "unbounded_share": 0.192,
   "confidence_median": 0.897,
   "width_median_bounded_m": 4.75,
   "window_m": [
    184.0,
    209.0
   ],
   "width_at_max25_m": 5.0,
   "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": 26,
    "stations_resolved": 26,
    "width_median_m": 4.25,
    "width_p10_m": 0.75,
    "width_min_m": 0.5,
    "width_max_m": 10.25,
    "bounded_share": 0.885,
    "unbounded_share": 0.115,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.25,
    "window_m": [
     184.0,
     209.0
    ],
    "width_at_max25_m": 6.0,
    "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": "Bastelicaccia",
  "county": "Corse-du-Sud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}