{
 "ocl_version": "0.1.0",
 "name": "Route des Gardes",
 "slug": "route-des-gardes",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 39.85764051921734,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1586.0,
   "end_distance_m": 1588.0,
   "start_elevation_m": 159.92411980149242,
   "end_elevation_m": 160.72127261187677,
   "min_gradient_pct": -49.33539456059606,
   "suppressed_max_gradient_pct": 71.5434685483288,
   "suppressed_location_m": [
    253.0,
    255.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.527284154538016,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1462.0,
   "end_distance_m": 1465.0,
   "start_elevation_m": 150.63789605915363,
   "end_elevation_m": 151.64371458378977,
   "min_gradient_pct": -46.68470996015704,
   "suppressed_max_gradient_pct": 52.924504899165946,
   "suppressed_location_m": [
    252.0,
    255.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.858837015629433,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 831.0,
   "end_distance_m": 836.0,
   "start_elevation_m": 157.15017520905081,
   "end_elevation_m": 158.4931170598323,
   "min_gradient_pct": -37.64520646551546,
   "suppressed_max_gradient_pct": 34.43891015379393,
   "suppressed_location_m": [
    252.0,
    257.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.97831171490543,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2485.0,
   "end_distance_m": 2495.0,
   "start_elevation_m": 216.5419949953674,
   "end_elevation_m": 218.83982616685793,
   "min_gradient_pct": -19.101893854433172
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.300161409916996,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2474.0,
   "end_distance_m": 2494.0,
   "start_elevation_m": 214.39533917776413,
   "end_elevation_m": 218.65537145974753,
   "min_gradient_pct": -8.6947993547804
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.877265268310225,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2472.0,
   "end_distance_m": 2497.0,
   "start_elevation_m": 214.00669597574176,
   "end_elevation_m": 219.22601229281932,
   "min_gradient_pct": -8.517413394309756
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.71105212415074,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2463.0,
   "end_distance_m": 2513.0,
   "start_elevation_m": 212.45020460494976,
   "end_elevation_m": 221.80573066702513,
   "min_gradient_pct": -7.868448817143133
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.78336186278895,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2454.0,
   "end_distance_m": 2554.0,
   "start_elevation_m": 211.2208464322485,
   "end_elevation_m": 228.00420829503744,
   "min_gradient_pct": -7.232762797738133
  }
 ],
 "shape": {
  "ascent_concentration": 0.495,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 175.0,
  "shape_class": "stepped"
 },
 "length_m": 2902.671216817684,
 "start_elevation_m": 132.49372685424805,
 "end_elevation_m": 241.56600832055733,
 "endpoint_gain_m": 109.07228146630928,
 "overall_gradient_pct": 3.7576519460543536,
 "accumulated_ascent_m": 141.60264510795798,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.858837015629433,
   "start_distance_m": 831.0,
   "end_distance_m": 836.0,
   "midpoint_distance_m": 833.5,
   "start_elevation_m": 157.15017520905081,
   "end_elevation_m": 158.4931170598323,
   "start_xy": [
    557573.5236588848,
    6355106.911403325
   ],
   "end_xy": [
    557569.1511052526,
    6355104.486372453
   ]
  },
  "max_10m": {
   "gradient_pct": 22.97831171490543,
   "start_distance_m": 2485.0,
   "end_distance_m": 2495.0,
   "midpoint_distance_m": 2490.0,
   "start_elevation_m": 216.5419949953674,
   "end_elevation_m": 218.83982616685793,
   "start_xy": [
    557502.4946542804,
    6354188.064892758
   ],
   "end_xy": [
    557512.4069591942,
    6354189.386335641
   ]
  },
  "max_20m": {
   "gradient_pct": 21.300161409916996,
   "start_distance_m": 2474.0,
   "end_distance_m": 2494.0,
   "midpoint_distance_m": 2484.0,
   "start_elevation_m": 214.39533917776413,
   "end_elevation_m": 218.65537145974753,
   "start_xy": [
    557491.5911188752,
    6354186.611305586
   ],
   "end_xy": [
    557511.4157287029,
    6354189.254191353
   ]
  },
  "max_25m": {
   "gradient_pct": 20.877265268310225,
   "start_distance_m": 2472.0,
   "end_distance_m": 2497.0,
   "midpoint_distance_m": 2484.5,
   "start_elevation_m": 214.00669597574176,
   "end_elevation_m": 219.22601229281932,
   "start_xy": [
    557489.6086578923,
    6354186.347017009
   ],
   "end_xy": [
    557514.389420177,
    6354189.650624218
   ]
  },
  "max_50m": {
   "gradient_pct": 18.71105212415074,
   "start_distance_m": 2463.0,
   "end_distance_m": 2513.0,
   "midpoint_distance_m": 2488.0,
   "start_elevation_m": 212.45020460494976,
   "end_elevation_m": 221.80573066702513,
   "start_xy": [
    557480.6832445016,
    6354185.190742814
   ],
   "end_xy": [
    557525.6312551119,
    6354181.485543885
   ]
  },
  "max_100m": {
   "gradient_pct": 16.78336186278895,
   "start_distance_m": 2454.0,
   "end_distance_m": 2554.0,
   "midpoint_distance_m": 2504.0,
   "start_elevation_m": 211.2208464322485,
   "end_elevation_m": 228.00420829503744,
   "start_xy": [
    557471.7577302523,
    6354184.035236264
   ],
   "end_xy": [
    557503.6942847797,
    6354147.071713744
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -37.64520646551546,
   "start_distance_m": 837.0,
   "end_distance_m": 842.0,
   "midpoint_distance_m": 839.5,
   "start_elevation_m": 158.653426308697,
   "end_elevation_m": 156.77116598542122,
   "start_xy": [
    557568.2546457361,
    6355104.095564942
   ],
   "end_xy": [
    557563.2605321315,
    6355104.338112474
   ]
  },
  "min_10m": {
   "gradient_pct": -19.101893854433172,
   "start_distance_m": 837.0,
   "end_distance_m": 847.0,
   "midpoint_distance_m": 842.0,
   "start_elevation_m": 158.653426308697,
   "end_elevation_m": 156.74323692325368,
   "start_xy": [
    557568.2546457361,
    6355104.095564942
   ],
   "end_xy": [
    557558.2664185271,
    6355104.580660007
   ]
  },
  "min_20m": {
   "gradient_pct": -8.6947993547804,
   "start_distance_m": 910.0,
   "end_distance_m": 930.0,
   "midpoint_distance_m": 920.0,
   "start_elevation_m": 157.87929342393878,
   "end_elevation_m": 156.1403335529827,
   "start_xy": [
    557498.4229891591,
    6355120.93625575
   ],
   "end_xy": [
    557481.9368586206,
    6355132.259130822
   ]
  },
  "min_25m": {
   "gradient_pct": -8.517413394309756,
   "start_distance_m": 917.0,
   "end_distance_m": 942.0,
   "midpoint_distance_m": 929.5,
   "start_elevation_m": 157.32312666437065,
   "end_elevation_m": 155.1937733157932,
   "start_xy": [
    557492.6528434706,
    6355124.899262025
   ],
   "end_xy": [
    557471.5441536898,
    6355138.0978659885
   ]
  },
  "min_50m": {
   "gradient_pct": -7.868448817143133,
   "start_distance_m": 910.0,
   "end_distance_m": 960.0,
   "midpoint_distance_m": 935.0,
   "start_elevation_m": 157.87929342393878,
   "end_elevation_m": 153.9450690153672,
   "start_xy": [
    557498.4229891591,
    6355120.93625575
   ],
   "end_xy": [
    557454.567696383,
    6355142.590319372
   ]
  },
  "min_100m": {
   "gradient_pct": -7.232762797738133,
   "start_distance_m": 911.0,
   "end_distance_m": 1011.0,
   "midpoint_distance_m": 961.0,
   "start_elevation_m": 157.80211237803104,
   "end_elevation_m": 150.5693495802929,
   "start_xy": [
    557497.5986826322,
    6355121.502399504
   ],
   "end_xy": [
    557417.0240438122,
    6355112.877512806
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 39.85764051921734,
   "start_distance_m": 1586.0,
   "end_distance_m": 1588.0,
   "midpoint_distance_m": 1587.0,
   "start_elevation_m": 159.92411980149242,
   "end_elevation_m": 160.72127261187677,
   "start_xy": [
    557236.7647134004,
    6354757.808503286
   ],
   "end_xy": [
    557238.2976528814,
    6354756.523942448
   ]
  },
  "max_3m": {
   "gradient_pct": 33.527284154538016,
   "start_distance_m": 1462.0,
   "end_distance_m": 1465.0,
   "midpoint_distance_m": 1463.5,
   "start_elevation_m": 150.63789605915363,
   "end_elevation_m": 151.64371458378977,
   "start_xy": [
    557163.1772160326,
    6354841.401562243
   ],
   "end_xy": [
    557162.0494240564,
    6354838.621618852
   ]
  }
 },
 "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": 0.002,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.013,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.016,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 1594.0,
     "end_m": 1599.0,
     "raw_pct": 33.34,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.32,
   "obstruction_max_height_m": 24.76,
   "flagged_windows_m": [
    2,
    3,
    5
   ]
  },
  "excluded_ranges_m": [
   [
    251.0,
    256.0
   ],
   [
    370.0,
    400.0
   ],
   [
    1592.0,
    1601.0
   ]
  ],
  "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-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_E557-N6353_0m5@21LHD2IO-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E557-N6354_0m5@21LHD2IO-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E557-N6355_0m5@21LHD2IO-2025-04-02.tif"
  ],
  "calculated_at": "2026-09-22T16:23:09+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": [
   "E557-N6353",
   "E557-N6354",
   "E557-N6355"
  ],
  "elevation_blocks": [
   "21LHD2IO@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_0557_6354_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0557_6355_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0557_6356_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD2IO"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0557_6354_MNT_O_0M50_LAMB93_IGN69": "2025-04-02",
   "LHD_FXX_0557_6355_MNT_O_0M50_LAMB93_IGN69": "2025-04-02",
   "LHD_FXX_0557_6356_MNT_O_0M50_LAMB93_IGN69": "2025-04-02"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 123,
   "stations_resolved": 123,
   "width_median_m": 5.0,
   "width_p10_m": 2.25,
   "width_min_m": 1.25,
   "width_max_m": 12.0,
   "bounded_share": 0.309,
   "unbounded_share": 0.691,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.25,
   "window_m": [
    2472.0,
    2497.0
   ],
   "width_at_max25_m": 2.75,
   "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": 123,
    "stations_resolved": 123,
    "width_median_m": 6.25,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.732,
    "unbounded_share": 0.268,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.38,
    "window_m": [
     2472.0,
     2497.0
    ],
    "width_at_max25_m": 6.5,
    "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": "Lendou-en-Quercy",
  "county": "Lot",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}