{
 "ocl_version": "0.1.0",
 "name": "Route de Combe de Vals",
 "slug": "route-de-combe-de-vals",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 30.454110198681406,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 770.0,
   "end_distance_m": 772.0,
   "start_elevation_m": 225.6164613959267,
   "end_elevation_m": 226.22554359990033,
   "min_gradient_pct": -13.447403341642428,
   "suppressed_max_gradient_pct": 40.16641121175866,
   "suppressed_location_m": [
    0.0,
    2.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.730710634884304,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 769.0,
   "end_distance_m": 772.0,
   "start_elevation_m": 225.3936222808538,
   "end_elevation_m": 226.22554359990033,
   "min_gradient_pct": -8.473914260304127
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.004240194293516,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 767.0,
   "end_distance_m": 772.0,
   "start_elevation_m": 225.02533159018566,
   "end_elevation_m": 226.22554359990033,
   "min_gradient_pct": -3.311913032107441
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.521309991857493,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 589.0,
   "end_distance_m": 599.0,
   "start_elevation_m": 199.63022475904933,
   "end_elevation_m": 201.68235575823508,
   "min_gradient_pct": -0.00967875623132386
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.470621473407533,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 587.0,
   "end_distance_m": 607.0,
   "start_elevation_m": 199.2605914340026,
   "end_elevation_m": 203.3547157286841,
   "min_gradient_pct": 1.3415889471787068
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.225893803381382,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 582.0,
   "end_distance_m": 607.0,
   "start_elevation_m": 198.29824227783877,
   "end_elevation_m": 203.3547157286841,
   "min_gradient_pct": 1.6245832661395525
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.01002483357746,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 567.0,
   "end_distance_m": 617.0,
   "start_elevation_m": 195.80251268005446,
   "end_elevation_m": 204.8075250968432,
   "min_gradient_pct": 2.9325505831122882
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.484455530280826,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 546.0,
   "end_distance_m": 646.0,
   "start_elevation_m": 192.86165689428105,
   "end_elevation_m": 209.34611242456188,
   "min_gradient_pct": 4.370397945326488
  }
 ],
 "shape": {
  "ascent_concentration": 0.328,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 399.0,
  "shape_class": "sustained"
 },
 "length_m": 1381.9560678244995,
 "start_elevation_m": 136.70567181422322,
 "end_elevation_m": 292.54513683593416,
 "endpoint_gain_m": 155.83946502171094,
 "overall_gradient_pct": 11.276730762290892,
 "accumulated_ascent_m": 156.61484531766564,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.004240194293516,
   "start_distance_m": 767.0,
   "end_distance_m": 772.0,
   "midpoint_distance_m": 769.5,
   "start_elevation_m": 225.02533159018566,
   "end_elevation_m": 226.22554359990033,
   "start_xy": [
    593694.1529956904,
    6379101.160438985
   ],
   "end_xy": [
    593699.0914280618,
    6379100.378207745
   ]
  },
  "max_10m": {
   "gradient_pct": 20.521309991857493,
   "start_distance_m": 589.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 594.0,
   "start_elevation_m": 199.63022475904933,
   "end_elevation_m": 201.68235575823508,
   "start_xy": [
    593542.1603935986,
    6379181.54707995
   ],
   "end_xy": [
    593549.1596035569,
    6379174.406342015
   ]
  },
  "max_20m": {
   "gradient_pct": 20.470621473407533,
   "start_distance_m": 587.0,
   "end_distance_m": 607.0,
   "midpoint_distance_m": 597.0,
   "start_elevation_m": 199.2605914340026,
   "end_elevation_m": 203.3547157286841,
   "start_xy": [
    593540.8044668811,
    6379183.017271345
   ],
   "end_xy": [
    593554.1385760416,
    6379168.154555382
   ]
  },
  "max_25m": {
   "gradient_pct": 20.225893803381382,
   "start_distance_m": 582.0,
   "end_distance_m": 607.0,
   "midpoint_distance_m": 594.5,
   "start_elevation_m": 198.29824227783877,
   "end_elevation_m": 203.3547157286841,
   "start_xy": [
    593537.4146500876,
    6379186.692749831
   ],
   "end_xy": [
    593554.1385760416,
    6379168.154555382
   ]
  },
  "max_50m": {
   "gradient_pct": 18.01002483357746,
   "start_distance_m": 567.0,
   "end_distance_m": 617.0,
   "midpoint_distance_m": 592.0,
   "start_elevation_m": 195.80251268005446,
   "end_elevation_m": 204.8075250968432,
   "start_xy": [
    593528.2536417542,
    6379198.438786325
   ],
   "end_xy": [
    593560.2281695721,
    6379160.222541097
   ]
  },
  "max_100m": {
   "gradient_pct": 16.484455530280826,
   "start_distance_m": 546.0,
   "end_distance_m": 646.0,
   "midpoint_distance_m": 596.0,
   "start_elevation_m": 192.86165689428105,
   "end_elevation_m": 209.34611242456188,
   "start_xy": [
    593519.1845165419,
    6379217.339250185
   ],
   "end_xy": [
    593581.0579610589,
    6379140.2327305535
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.311913032107441,
   "start_distance_m": 781.0,
   "end_distance_m": 786.0,
   "midpoint_distance_m": 783.5,
   "start_elevation_m": 227.0516957794781,
   "end_elevation_m": 226.88610012787274,
   "start_xy": [
    593707.8668406615,
    6379098.446242398
   ],
   "end_xy": [
    593712.6849837124,
    6379097.110017289
   ]
  },
  "min_10m": {
   "gradient_pct": -0.00967875623132386,
   "start_distance_m": 71.0,
   "end_distance_m": 81.0,
   "midpoint_distance_m": 76.0,
   "start_elevation_m": 141.9197212436158,
   "end_elevation_m": 141.91875336799268,
   "start_xy": [
    593408.3063784137,
    6379609.8325040685
   ],
   "end_xy": [
    593402.5521259598,
    6379602.414628088
   ]
  },
  "min_20m": {
   "gradient_pct": 1.3415889471787068,
   "start_distance_m": 1361.0,
   "end_distance_m": 1381.0,
   "midpoint_distance_m": 1371.0,
   "start_elevation_m": 292.248797909175,
   "end_elevation_m": 292.5171156986107,
   "start_xy": [
    593955.4809215836,
    6378654.143658983
   ],
   "end_xy": [
    593973.0911703869,
    6378644.663198177
   ]
  },
  "min_25m": {
   "gradient_pct": 1.6245832661395525,
   "start_distance_m": 1356.0,
   "end_distance_m": 1381.0,
   "midpoint_distance_m": 1368.5,
   "start_elevation_m": 292.11096988207584,
   "end_elevation_m": 292.5171156986107,
   "start_xy": [
    593951.0783593828,
    6378656.513774184
   ],
   "end_xy": [
    593973.0911703869,
    6378644.663198177
   ]
  },
  "min_50m": {
   "gradient_pct": 2.9325505831122882,
   "start_distance_m": 1331.0,
   "end_distance_m": 1381.0,
   "midpoint_distance_m": 1356.0,
   "start_elevation_m": 291.0508404070546,
   "end_elevation_m": 292.5171156986107,
   "start_xy": [
    593929.8971320287,
    6378669.683082339
   ],
   "end_xy": [
    593973.0911703869,
    6378644.663198177
   ]
  },
  "min_100m": {
   "gradient_pct": 4.370397945326488,
   "start_distance_m": 71.0,
   "end_distance_m": 171.0,
   "midpoint_distance_m": 121.0,
   "start_elevation_m": 141.9197212436158,
   "end_elevation_m": 146.2901191889423,
   "start_xy": [
    593408.3063784137,
    6379609.8325040685
   ],
   "end_xy": [
    593347.0374223137,
    6379532.598027631
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 30.454110198681406,
   "start_distance_m": 770.0,
   "end_distance_m": 772.0,
   "midpoint_distance_m": 771.0,
   "start_elevation_m": 225.6164613959267,
   "end_elevation_m": 226.22554359990033,
   "start_xy": [
    593697.1160551133,
    6379100.691100241
   ],
   "end_xy": [
    593699.0914280618,
    6379100.378207745
   ]
  },
  "max_3m": {
   "gradient_pct": 27.730710634884304,
   "start_distance_m": 769.0,
   "end_distance_m": 772.0,
   "midpoint_distance_m": 770.5,
   "start_elevation_m": 225.3936222808538,
   "end_elevation_m": 226.22554359990033,
   "start_xy": [
    593696.1283686389,
    6379100.847546488
   ],
   "end_xy": [
    593699.0914280618,
    6379100.378207745
   ]
  }
 },
 "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": 0.037,
   "windows_resited": [
    2.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.072,
   "obstruction_max_height_m": 9.96,
   "flagged_windows_m": [
    10,
    20,
    25,
    50
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    50.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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_E593-N6378_0m5@22LHD2JO-2025-06-17.tif",
   "data/cache/fr/ign-lidarhd_dtm_E593-N6379_0m5@22LHD2JO-2025-06-17.tif"
  ],
  "calculated_at": "2026-09-22T15:33:33+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": [
   "E593-N6378",
   "E593-N6379"
  ],
  "elevation_blocks": [
   "22LHD2JO@2025-06-17"
  ],
  "ign_dalles": [
   "LHD_FXX_0593_6379_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0593_6380_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD2JO"
  ],
  "ign_editions": [
   "2025-06-17"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0593_6379_MNT_O_0M50_LAMB93_IGN69": "2025-06-17",
   "LHD_FXX_0593_6380_MNT_O_0M50_LAMB93_IGN69": "2025-06-17"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "mask_basin_extension_m": 30.0,
  "carriageway": {
   "stations": 62,
   "stations_resolved": 62,
   "width_median_m": 4.5,
   "width_p10_m": 2.75,
   "width_min_m": 1.0,
   "width_max_m": 11.5,
   "bounded_share": 0.5,
   "unbounded_share": 0.5,
   "confidence_median": 0.253,
   "width_median_bounded_m": 4.75,
   "window_m": [
    582.0,
    607.0
   ],
   "width_at_max25_m": 4.75,
   "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": 62,
    "stations_resolved": 62,
    "width_median_m": 4.75,
    "width_p10_m": 2.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.839,
    "unbounded_share": 0.161,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.62,
    "window_m": [
     582.0,
     607.0
    ],
    "width_at_max25_m": 2.75,
    "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": "Cabrerets",
  "county": "Lot",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}