{
 "ocl_version": "0.1.0",
 "name": "Route d'Armenaud",
 "slug": "route-d-armenaud",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.30787650904631,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1197.0,
   "end_distance_m": 1199.0,
   "start_elevation_m": 802.4772381732457,
   "end_elevation_m": 802.9233957034266,
   "min_gradient_pct": -17.40397316718827,
   "suppressed_max_gradient_pct": 206.18676135403575,
   "suppressed_location_m": [
    17.0,
    19.0
   ],
   "suppressed_min_gradient_pct": -195.84812307593324,
   "suppressed_min_location_m": [
    11.0,
    13.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.98160894099601,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1196.0,
   "end_distance_m": 1199.0,
   "start_elevation_m": 802.2639474351968,
   "end_elevation_m": 802.9233957034266,
   "min_gradient_pct": -15.61203213079807,
   "suppressed_max_gradient_pct": 172.70096165293958,
   "suppressed_location_m": [
    16.0,
    19.0
   ],
   "suppressed_min_gradient_pct": -148.05363161383033,
   "suppressed_min_location_m": [
    11.0,
    14.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.4457199087542,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1196.0,
   "end_distance_m": 1201.0,
   "start_elevation_m": 802.2639474351968,
   "end_elevation_m": 803.3362334306345,
   "min_gradient_pct": -14.37298342343638,
   "suppressed_max_gradient_pct": 104.65211532478179,
   "suppressed_location_m": [
    16.0,
    21.0
   ],
   "suppressed_min_gradient_pct": -97.02783512357883,
   "suppressed_min_location_m": [
    10.0,
    15.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.03118093291073,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1191.0,
   "end_distance_m": 1201.0,
   "start_elevation_m": 801.2331153373434,
   "end_elevation_m": 803.3362334306345,
   "min_gradient_pct": -11.537106841734612,
   "suppressed_max_gradient_pct": 53.76504507841105,
   "suppressed_location_m": [
    16.0,
    26.0
   ],
   "suppressed_min_gradient_pct": -47.98058068666819,
   "suppressed_min_location_m": [
    6.0,
    16.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.672312080379243,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1182.0,
   "end_distance_m": 1202.0,
   "start_elevation_m": 799.3984353272988,
   "end_elevation_m": 803.5328977433746,
   "min_gradient_pct": -7.397529604955366,
   "suppressed_max_gradient_pct": 29.438436031845185,
   "suppressed_location_m": [
    16.0,
    36.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.592739306548992,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1182.0,
   "end_distance_m": 1207.0,
   "start_elevation_m": 799.3984353272988,
   "end_elevation_m": 804.546620153936,
   "min_gradient_pct": -6.979056217697234,
   "suppressed_max_gradient_pct": 24.73058815205559,
   "suppressed_location_m": [
    16.0,
    41.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.370104258878882,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1189.0,
   "end_distance_m": 1239.0,
   "start_elevation_m": 800.8216072478593,
   "end_elevation_m": 811.0066593772988,
   "min_gradient_pct": -6.332170048073976
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.06908867437801,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1172.0,
   "end_distance_m": 1272.0,
   "start_elevation_m": 797.4997189620177,
   "end_elevation_m": 817.5688076363957,
   "min_gradient_pct": -4.474740161030695
  }
 ],
 "shape": {
  "ascent_concentration": 0.476,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 266.0,
  "shape_class": "stepped"
 },
 "length_m": 1844.6902574657186,
 "start_elevation_m": 749.0757180712893,
 "end_elevation_m": 864.3705594550886,
 "endpoint_gain_m": 115.29484138379928,
 "overall_gradient_pct": 6.2500921722324385,
 "accumulated_ascent_m": 133.4640848548231,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.4457199087542,
   "start_distance_m": 1196.0,
   "end_distance_m": 1201.0,
   "midpoint_distance_m": 1198.5,
   "start_elevation_m": 802.2639474351968,
   "end_elevation_m": 803.3362334306345,
   "start_xy": [
    780485.9395662766,
    6433647.065748515
   ],
   "end_xy": [
    780490.1261900206,
    6433644.332219362
   ]
  },
  "max_10m": {
   "gradient_pct": 21.03118093291073,
   "start_distance_m": 1191.0,
   "end_distance_m": 1201.0,
   "midpoint_distance_m": 1196.0,
   "start_elevation_m": 801.2331153373434,
   "end_elevation_m": 803.3362334306345,
   "start_xy": [
    780482.0786580029,
    6433650.226054328
   ],
   "end_xy": [
    780490.1261900206,
    6433644.332219362
   ]
  },
  "max_20m": {
   "gradient_pct": 20.672312080379243,
   "start_distance_m": 1182.0,
   "end_distance_m": 1202.0,
   "midpoint_distance_m": 1192.0,
   "start_elevation_m": 799.3984353272988,
   "end_elevation_m": 803.5328977433746,
   "start_xy": [
    780475.3443422372,
    6433656.196731941
   ],
   "end_xy": [
    780490.9635147693,
    6433643.785513532
   ]
  },
  "max_25m": {
   "gradient_pct": 20.592739306548992,
   "start_distance_m": 1182.0,
   "end_distance_m": 1207.0,
   "midpoint_distance_m": 1194.5,
   "start_elevation_m": 799.3984353272988,
   "end_elevation_m": 804.546620153936,
   "start_xy": [
    780475.3443422372,
    6433656.196731941
   ],
   "end_xy": [
    780495.1501385133,
    6433641.05198438
   ]
  },
  "max_50m": {
   "gradient_pct": 20.370104258878882,
   "start_distance_m": 1189.0,
   "end_distance_m": 1239.0,
   "midpoint_distance_m": 1214.0,
   "start_elevation_m": 800.8216072478593,
   "end_elevation_m": 811.0066593772988,
   "start_xy": [
    780480.5821433883,
    6433651.552871575
   ],
   "end_xy": [
    780525.3458568577,
    6433630.839894485
   ]
  },
  "max_100m": {
   "gradient_pct": 20.06908867437801,
   "start_distance_m": 1172.0,
   "end_distance_m": 1272.0,
   "midpoint_distance_m": 1222.0,
   "start_elevation_m": 797.4997189620177,
   "end_elevation_m": 817.5688076363957,
   "start_xy": [
    780467.9443026696,
    6433662.913668304
   ],
   "end_xy": [
    780557.0184091391,
    6433621.725538319
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.37298342343638,
   "start_distance_m": 596.0,
   "end_distance_m": 601.0,
   "midpoint_distance_m": 598.5,
   "start_elevation_m": 771.8987168855783,
   "end_elevation_m": 771.1800677144065,
   "start_xy": [
    780062.8551081365,
    6433440.0662766285
   ],
   "end_xy": [
    780067.8532426807,
    6433440.202845578
   ]
  },
  "min_10m": {
   "gradient_pct": -11.537106841734612,
   "start_distance_m": 592.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 597.0,
   "start_elevation_m": 772.2455460184472,
   "end_elevation_m": 771.0918353342737,
   "start_xy": [
    780058.8597975717,
    6433440.00488446
   ],
   "end_xy": [
    780068.8528695896,
    6433440.230159368
   ]
  },
  "min_20m": {
   "gradient_pct": -7.397529604955366,
   "start_distance_m": 582.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 592.0,
   "start_elevation_m": 772.5713412552648,
   "end_elevation_m": 771.0918353342737,
   "start_xy": [
    780048.9886609813,
    6433441.605091451
   ],
   "end_xy": [
    780068.8528695896,
    6433440.230159368
   ]
  },
  "min_25m": {
   "gradient_pct": -6.979056217697234,
   "start_distance_m": 414.0,
   "end_distance_m": 439.0,
   "midpoint_distance_m": 426.5,
   "start_elevation_m": 772.1376589387477,
   "end_elevation_m": 770.3928948843234,
   "start_xy": [
    779921.8693774736,
    6433372.946164755
   ],
   "end_xy": [
    779923.2949576755,
    6433397.730550769
   ]
  },
  "min_50m": {
   "gradient_pct": -6.332170048073976,
   "start_distance_m": 404.0,
   "end_distance_m": 454.0,
   "midpoint_distance_m": 429.0,
   "start_elevation_m": 772.630413593835,
   "end_elevation_m": 769.464328569798,
   "start_xy": [
    779922.3547566013,
    6433362.957951346
   ],
   "end_xy": [
    779930.0972841231,
    6433410.865312335
   ]
  },
  "min_100m": {
   "gradient_pct": -4.474740161030695,
   "start_distance_m": 394.0,
   "end_distance_m": 494.0,
   "midpoint_distance_m": 444.0,
   "start_elevation_m": 772.9851162357216,
   "end_elevation_m": 768.510376074691,
   "start_xy": [
    779922.8503827578,
    6433352.970655032
   ],
   "end_xy": [
    779966.1146728122,
    6433420.683724763
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.30787650904631,
   "start_distance_m": 1197.0,
   "end_distance_m": 1199.0,
   "midpoint_distance_m": 1198.0,
   "start_elevation_m": 802.4772381732457,
   "end_elevation_m": 802.9233957034266,
   "start_xy": [
    780486.7768910255,
    6433646.519042685
   ],
   "end_xy": [
    780488.451540523,
    6433645.425631023
   ]
  },
  "max_3m": {
   "gradient_pct": 21.98160894099601,
   "start_distance_m": 1196.0,
   "end_distance_m": 1199.0,
   "midpoint_distance_m": 1197.5,
   "start_elevation_m": 802.2639474351968,
   "end_elevation_m": 802.9233957034266,
   "start_xy": [
    780485.9395662766,
    6433647.065748515
   ],
   "end_xy": [
    780488.451540523,
    6433645.425631023
   ]
  }
 },
 "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,
    20.0,
    25.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.173,
   "obstruction_max_height_m": 22.02,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    40.0
   ]
  ],
  "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-mc6",
   "road_pbf": "block-batch-fr-mc6.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_E779-N6433_0m5@21LHD4MM-2025-03-12.tif",
   "data/cache/fr/ign-lidarhd_dtm_E780-N6433_0m5@21LHD4MM-2025-03-12.tif",
   "data/cache/fr/ign-lidarhd_dtm_E781-N6433_0m5@21LHD4MM-2025-03-12.tif"
  ],
  "calculated_at": "2026-09-22T15:39:34+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc6.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc6",
  "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": [
   "E779-N6433",
   "E780-N6433",
   "E781-N6433"
  ],
  "elevation_blocks": [
   "21LHD4MM@2025-03-12"
  ],
  "ign_dalles": [
   "LHD_FXX_0779_6434_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0780_6434_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0781_6434_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD4MM"
  ],
  "ign_editions": [
   "2025-03-12"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0779_6434_MNT_O_0M50_LAMB93_IGN69": "2025-03-12",
   "LHD_FXX_0780_6434_MNT_O_0M50_LAMB93_IGN69": "2025-03-12",
   "LHD_FXX_0781_6434_MNT_O_0M50_LAMB93_IGN69": "2025-03-12"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 5,
  "structure_mask_ranges_m": [
   [
    0.0,
    35.6
   ]
  ],
  "carriageway": {
   "stations": 80,
   "stations_resolved": 80,
   "width_median_m": 6.0,
   "width_p10_m": 4.5,
   "width_min_m": 3.25,
   "width_max_m": 12.0,
   "bounded_share": 0.312,
   "unbounded_share": 0.688,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.0,
   "window_m": [
    1182.0,
    1207.0
   ],
   "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": 80,
    "stations_resolved": 80,
    "width_median_m": 7.0,
    "width_p10_m": 0.75,
    "width_min_m": 0.0,
    "width_max_m": 12.0,
    "bounded_share": 0.662,
    "unbounded_share": 0.338,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.5,
    "window_m": [
     1182.0,
     1207.0
    ],
    "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": "Lantriac",
  "county": "Haute-Loire",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}