{
 "ocl_version": "0.1.0",
 "name": "C\u00f4te des Pieyres",
 "slug": "cote-des-pieyres",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.89999333216457,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 267.0,
   "end_distance_m": 269.0,
   "start_elevation_m": 189.05114587466775,
   "end_elevation_m": 189.50914574131104,
   "min_gradient_pct": -4.843348948290327
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.6994598518606,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 259.0,
   "end_distance_m": 262.0,
   "start_elevation_m": 187.30453926746733,
   "end_elevation_m": 187.98552306302315,
   "min_gradient_pct": -4.621925540735106
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.27659219538566,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 267.0,
   "end_distance_m": 272.0,
   "start_elevation_m": 189.05114587466775,
   "end_elevation_m": 190.16497548443704,
   "min_gradient_pct": -4.4196216342311345
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.04606473843711,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 259.0,
   "end_distance_m": 269.0,
   "start_elevation_m": 187.30453926746733,
   "end_elevation_m": 189.50914574131104,
   "min_gradient_pct": -4.213841322217604
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.881275849815154,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 258.0,
   "end_distance_m": 278.0,
   "start_elevation_m": 187.09260165703031,
   "end_elevation_m": 191.46885682699335,
   "min_gradient_pct": -4.05406788597503
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.718592814640715,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 253.0,
   "end_distance_m": 278.0,
   "start_elevation_m": 186.03920862333317,
   "end_elevation_m": 191.46885682699335,
   "min_gradient_pct": -3.9582307444593425
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.98714372416805,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 230.0,
   "end_distance_m": 280.0,
   "start_elevation_m": 181.3896029431267,
   "end_elevation_m": 191.88317480521073,
   "min_gradient_pct": -3.6104282400470424
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.794940061193444,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 203.0,
   "end_distance_m": 303.0,
   "start_elevation_m": 176.31663750276402,
   "end_elevation_m": 196.11157756395747,
   "min_gradient_pct": -3.098803256367347
  }
 ],
 "shape": {
  "ascent_concentration": 0.68,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 223.0,
  "shape_class": "stepped"
 },
 "length_m": 1052.4754809714302,
 "start_elevation_m": 164.2588206184077,
 "end_elevation_m": 221.5019230957039,
 "endpoint_gain_m": 57.24310247729619,
 "overall_gradient_pct": 5.438901286751218,
 "accumulated_ascent_m": 61.727761590762015,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.27659219538566,
   "start_distance_m": 267.0,
   "end_distance_m": 272.0,
   "midpoint_distance_m": 269.5,
   "start_elevation_m": 189.05114587466775,
   "end_elevation_m": 190.16497548443704,
   "start_xy": [
    619043.2208846956,
    6295927.983316155
   ],
   "end_xy": [
    619042.9449293585,
    6295922.990937098
   ]
  },
  "max_10m": {
   "gradient_pct": 22.04606473843711,
   "start_distance_m": 259.0,
   "end_distance_m": 269.0,
   "midpoint_distance_m": 264.0,
   "start_elevation_m": 187.30453926746733,
   "end_elevation_m": 189.50914574131104,
   "start_xy": [
    619043.6624132349,
    6295935.971122647
   ],
   "end_xy": [
    619043.1105025609,
    6295925.986364532
   ]
  },
  "max_20m": {
   "gradient_pct": 21.881275849815154,
   "start_distance_m": 258.0,
   "end_distance_m": 278.0,
   "midpoint_distance_m": 268.0,
   "start_elevation_m": 187.09260165703031,
   "end_elevation_m": 191.46885682699335,
   "start_xy": [
    619043.7176043023,
    6295936.969598458
   ],
   "end_xy": [
    619042.613782954,
    6295917.000082228
   ]
  },
  "max_25m": {
   "gradient_pct": 21.718592814640715,
   "start_distance_m": 253.0,
   "end_distance_m": 278.0,
   "midpoint_distance_m": 265.5,
   "start_elevation_m": 186.03920862333317,
   "end_elevation_m": 191.46885682699335,
   "start_xy": [
    619043.9935596394,
    6295941.961977515
   ],
   "end_xy": [
    619042.613782954,
    6295917.000082228
   ]
  },
  "max_50m": {
   "gradient_pct": 20.98714372416805,
   "start_distance_m": 230.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 255.0,
   "start_elevation_m": 181.3896029431267,
   "end_elevation_m": 191.88317480521073,
   "start_xy": [
    619045.5874393195,
    6295964.8999961
   ],
   "end_xy": [
    619042.5034008193,
    6295915.003130605
   ]
  },
  "max_100m": {
   "gradient_pct": 19.794940061193444,
   "start_distance_m": 203.0,
   "end_distance_m": 303.0,
   "midpoint_distance_m": 253.0,
   "start_elevation_m": 176.31663750276402,
   "end_elevation_m": 196.11157756395747,
   "start_xy": [
    619049.6564758017,
    6295991.577522115
   ],
   "end_xy": [
    619041.2340062687,
    6295892.038186942
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.4196216342311345,
   "start_distance_m": 951.0,
   "end_distance_m": 956.0,
   "midpoint_distance_m": 953.5,
   "start_elevation_m": 222.74769733864667,
   "end_elevation_m": 222.52671625693512,
   "start_xy": [
    619114.024192049,
    6295267.699302307
   ],
   "end_xy": [
    619113.3284374113,
    6295262.747946383
   ]
  },
  "min_10m": {
   "gradient_pct": -4.213841322217604,
   "start_distance_m": 951.0,
   "end_distance_m": 961.0,
   "midpoint_distance_m": 956.0,
   "start_elevation_m": 222.74769733864667,
   "end_elevation_m": 222.3263132064249,
   "start_xy": [
    619114.024192049,
    6295267.699302307
   ],
   "end_xy": [
    619112.6326827736,
    6295257.7965904595
   ]
  },
  "min_20m": {
   "gradient_pct": -4.05406788597503,
   "start_distance_m": 940.0,
   "end_distance_m": 960.0,
   "midpoint_distance_m": 950.0,
   "start_elevation_m": 223.16733289700107,
   "end_elevation_m": 222.35651931980607,
   "start_xy": [
    619115.5548522521,
    6295278.59228534
   ],
   "end_xy": [
    619112.7718337012,
    6295258.786861644
   ]
  },
  "min_25m": {
   "gradient_pct": -3.9582307444593425,
   "start_distance_m": 936.0,
   "end_distance_m": 961.0,
   "midpoint_distance_m": 948.5,
   "start_elevation_m": 223.31587089253975,
   "end_elevation_m": 222.3263132064249,
   "start_xy": [
    619115.7521985142,
    6295282.581782731
   ],
   "end_xy": [
    619112.6326827736,
    6295257.7965904595
   ]
  },
  "min_50m": {
   "gradient_pct": -3.6104282400470424,
   "start_distance_m": 936.0,
   "end_distance_m": 986.0,
   "midpoint_distance_m": 961.0,
   "start_elevation_m": 223.31587089253975,
   "end_elevation_m": 221.51065677251623,
   "start_xy": [
    619115.7521985142,
    6295282.581782731
   ],
   "end_xy": [
    619108.4514322778,
    6295233.153350812
   ]
  },
  "min_100m": {
   "gradient_pct": -3.098803256367347,
   "start_distance_m": 902.0,
   "end_distance_m": 1002.0,
   "midpoint_distance_m": 952.0,
   "start_elevation_m": 224.2087614942738,
   "end_elevation_m": 221.10995823790645,
   "start_xy": [
    619116.087113229,
    6295316.576868745
   ],
   "end_xy": [
    619106.3878698548,
    6295217.3356460575
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.89999333216457,
   "start_distance_m": 267.0,
   "end_distance_m": 269.0,
   "midpoint_distance_m": 268.0,
   "start_elevation_m": 189.05114587466775,
   "end_elevation_m": 189.50914574131104,
   "start_xy": [
    619043.2208846956,
    6295927.983316155
   ],
   "end_xy": [
    619043.1105025609,
    6295925.986364532
   ]
  },
  "max_3m": {
   "gradient_pct": 22.6994598518606,
   "start_distance_m": 259.0,
   "end_distance_m": 262.0,
   "midpoint_distance_m": 260.5,
   "start_elevation_m": 187.30453926746733,
   "end_elevation_m": 187.98552306302315,
   "start_xy": [
    619043.6624132349,
    6295935.971122647
   ],
   "end_xy": [
    619043.4968400327,
    6295932.975695212
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.022,
   "obstruction_max_height_m": 6.19,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": []
 },
 "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-mc2",
   "road_pbf": "block-batch-fr-mc2.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_E618-N6295_0m5@22LHD2JP-2025-04-09.tif",
   "data/cache/fr/ign-lidarhd_dtm_E618-N6296_0m5@22LHD2JP-2025-04-09.tif",
   "data/cache/fr/ign-lidarhd_dtm_E619-N6295_0m5@22LHD2JP-2025-04-09.tif",
   "data/cache/fr/ign-lidarhd_dtm_E619-N6296_0m5@22LHD2JP-2025-04-09.tif"
  ],
  "calculated_at": "2026-09-22T17:00:49+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc2",
  "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": [
   "E618-N6295",
   "E618-N6296",
   "E619-N6295",
   "E619-N6296"
  ],
  "elevation_blocks": [
   "22LHD2JP@2025-04-09"
  ],
  "ign_dalles": [
   "LHD_FXX_0618_6296_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0618_6297_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0619_6296_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0619_6297_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD2JP"
  ],
  "ign_editions": [
   "2025-04-09"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0618_6296_MNT_O_0M50_LAMB93_IGN69": "2025-04-09",
   "LHD_FXX_0618_6297_MNT_O_0M50_LAMB93_IGN69": "2025-04-09",
   "LHD_FXX_0619_6296_MNT_O_0M50_LAMB93_IGN69": "2025-04-09",
   "LHD_FXX_0619_6297_MNT_O_0M50_LAMB93_IGN69": "2025-04-09"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 49,
   "stations_resolved": 49,
   "width_median_m": 6.0,
   "width_p10_m": 4.75,
   "width_min_m": 4.25,
   "width_max_m": 12.0,
   "bounded_share": 0.245,
   "unbounded_share": 0.755,
   "confidence_median": 0.0,
   "width_median_bounded_m": 6.12,
   "window_m": [
    253.0,
    278.0
   ],
   "width_at_max25_m": 5.25,
   "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": 49,
    "stations_resolved": 49,
    "width_median_m": 6.5,
    "width_p10_m": 2.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.776,
    "unbounded_share": 0.224,
    "confidence_median": 1.0,
    "width_median_bounded_m": 6.25,
    "window_m": [
     253.0,
     278.0
    ],
    "width_at_max25_m": 7.25,
    "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": "Graulhet",
  "county": "Tarn",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}