{
 "ocl_version": "0.1.0",
 "name": "Chemin du Riou",
 "slug": "chemin-du-riou-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.28504978479225,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 840.0,
   "end_distance_m": 842.0,
   "start_elevation_m": 362.9053147341432,
   "end_elevation_m": 363.49101572983903,
   "min_gradient_pct": -16.775307946053886
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.957339885620133,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 839.0,
   "end_distance_m": 842.0,
   "start_elevation_m": 362.59229553327043,
   "end_elevation_m": 363.49101572983903,
   "min_gradient_pct": -15.550715553958602
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.99261390339325,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 839.0,
   "end_distance_m": 844.0,
   "start_elevation_m": 362.59229553327043,
   "end_elevation_m": 363.9919262284401,
   "min_gradient_pct": -13.87766505158993
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.3031648603843,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 838.0,
   "end_distance_m": 848.0,
   "start_elevation_m": 362.35867001760795,
   "end_elevation_m": 364.8889865036464,
   "min_gradient_pct": -9.53866712660215
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.132395851794797,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 833.0,
   "end_distance_m": 853.0,
   "start_elevation_m": 361.365601785062,
   "end_elevation_m": 365.79208095542094,
   "min_gradient_pct": -5.293231063631936
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.589200526348577,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 835.0,
   "end_distance_m": 860.0,
   "start_elevation_m": 361.7442440493189,
   "end_elevation_m": 367.14154418090607,
   "min_gradient_pct": -4.173294886534222
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.52729993885464,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 838.0,
   "end_distance_m": 888.0,
   "start_elevation_m": 362.35867001760795,
   "end_elevation_m": 372.12231998703527,
   "min_gradient_pct": -1.0331088118244907
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.200053245404717,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 812.0,
   "end_distance_m": 912.0,
   "start_elevation_m": 358.3988741688485,
   "end_elevation_m": 375.59892741425324,
   "min_gradient_pct": 1.047856348962398
  }
 ],
 "shape": {
  "ascent_concentration": 0.566,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 150.0,
  "shape_class": "stepped"
 },
 "length_m": 983.999999999794,
 "start_elevation_m": 327.8417183642543,
 "end_elevation_m": 379.43452017490733,
 "endpoint_gain_m": 51.59280181065304,
 "overall_gradient_pct": 5.2431709157178705,
 "accumulated_ascent_m": 56.289477702844295,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.99261390339325,
   "start_distance_m": 839.0,
   "end_distance_m": 844.0,
   "midpoint_distance_m": 841.5,
   "start_elevation_m": 362.59229553327043,
   "end_elevation_m": 363.9919262284401,
   "start_xy": [
    943930.0904174226,
    6278813.574928822
   ],
   "end_xy": [
    943926.0070892213,
    6278816.460484367
   ]
  },
  "max_10m": {
   "gradient_pct": 25.3031648603843,
   "start_distance_m": 838.0,
   "end_distance_m": 848.0,
   "midpoint_distance_m": 843.0,
   "start_elevation_m": 362.35867001760795,
   "end_elevation_m": 364.8889865036464,
   "start_xy": [
    943930.9070830628,
    6278812.997817713
   ],
   "end_xy": [
    943922.7404266603,
    6278818.768928803
   ]
  },
  "max_20m": {
   "gradient_pct": 22.132395851794797,
   "start_distance_m": 833.0,
   "end_distance_m": 853.0,
   "midpoint_distance_m": 843.0,
   "start_elevation_m": 361.365601785062,
   "end_elevation_m": 365.79208095542094,
   "start_xy": [
    943934.9904112641,
    6278810.112262169
   ],
   "end_xy": [
    943918.657098459,
    6278821.6544843465
   ]
  },
  "max_25m": {
   "gradient_pct": 21.589200526348577,
   "start_distance_m": 835.0,
   "end_distance_m": 860.0,
   "midpoint_distance_m": 847.5,
   "start_elevation_m": 361.7442440493189,
   "end_elevation_m": 367.14154418090607,
   "start_xy": [
    943933.3570799836,
    6278811.266484386
   ],
   "end_xy": [
    943912.9404389771,
    6278825.694262109
   ]
  },
  "max_50m": {
   "gradient_pct": 19.52729993885464,
   "start_distance_m": 838.0,
   "end_distance_m": 888.0,
   "midpoint_distance_m": 863.0,
   "start_elevation_m": 362.35867001760795,
   "end_elevation_m": 372.12231998703527,
   "start_xy": [
    943930.9070830628,
    6278812.997817713
   ],
   "end_xy": [
    943892.1542389432,
    6278843.456259837
   ]
  },
  "max_100m": {
   "gradient_pct": 17.200053245404717,
   "start_distance_m": 812.0,
   "end_distance_m": 912.0,
   "midpoint_distance_m": 862.0,
   "start_elevation_m": 358.3988741688485,
   "end_elevation_m": 375.59892741425324,
   "start_xy": [
    943951.296895546,
    6278796.927109716
   ],
   "end_xy": [
    943876.2700094527,
    6278857.592751244
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.87766505158993,
   "start_distance_m": 593.0,
   "end_distance_m": 598.0,
   "midpoint_distance_m": 595.5,
   "start_elevation_m": 342.7990818141062,
   "end_elevation_m": 342.1051985615267,
   "start_xy": [
    944095.0651873348,
    6278632.353738369
   ],
   "end_xy": [
    944091.7949764528,
    6278636.136028784
   ]
  },
  "min_10m": {
   "gradient_pct": -9.53866712660215,
   "start_distance_m": 590.0,
   "end_distance_m": 600.0,
   "midpoint_distance_m": 595.0,
   "start_elevation_m": 343.04680797520604,
   "end_elevation_m": 342.0929412625458,
   "start_xy": [
    944097.027313864,
    6278630.08436412
   ],
   "end_xy": [
    944090.4868921,
    6278637.648944951
   ]
  },
  "min_20m": {
   "gradient_pct": -5.293231063631936,
   "start_distance_m": 590.0,
   "end_distance_m": 610.0,
   "midpoint_distance_m": 600.0,
   "start_elevation_m": 343.04680797520604,
   "end_elevation_m": 341.98816176247965,
   "start_xy": [
    944097.027313864,
    6278630.08436412
   ],
   "end_xy": [
    944084.3081311643,
    6278645.500713604
   ]
  },
  "min_25m": {
   "gradient_pct": -4.173294886534222,
   "start_distance_m": 583.0,
   "end_distance_m": 608.0,
   "midpoint_distance_m": 595.5,
   "start_elevation_m": 343.0080142892551,
   "end_elevation_m": 341.9646905676215,
   "start_xy": [
    944101.6056090988,
    6278624.789157538
   ],
   "end_xy": [
    944085.4853318575,
    6278643.883865272
   ]
  },
  "min_50m": {
   "gradient_pct": -1.0331088118244907,
   "start_distance_m": 558.0,
   "end_distance_m": 608.0,
   "midpoint_distance_m": 583.0,
   "start_elevation_m": 342.48124497353376,
   "end_elevation_m": 341.9646905676215,
   "start_xy": [
    944117.9566635089,
    6278605.87770546
   ],
   "end_xy": [
    944085.4853318575,
    6278643.883865272
   ]
  },
  "min_100m": {
   "gradient_pct": 1.047856348962398,
   "start_distance_m": 292.0,
   "end_distance_m": 392.0,
   "midpoint_distance_m": 342.0,
   "start_elevation_m": 336.4061060104041,
   "end_elevation_m": 337.45396235936647,
   "start_xy": [
    944331.7691460915,
    6278450.34158759
   ],
   "end_xy": [
    944255.9400418139,
    6278515.521093855
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.28504978479225,
   "start_distance_m": 840.0,
   "end_distance_m": 842.0,
   "midpoint_distance_m": 841.0,
   "start_elevation_m": 362.9053147341432,
   "end_elevation_m": 363.49101572983903,
   "start_xy": [
    943929.2737517824,
    6278814.152039931
   ],
   "end_xy": [
    943927.6404205018,
    6278815.306262149
   ]
  },
  "max_3m": {
   "gradient_pct": 29.957339885620133,
   "start_distance_m": 839.0,
   "end_distance_m": 842.0,
   "midpoint_distance_m": 840.5,
   "start_elevation_m": 362.59229553327043,
   "end_elevation_m": 363.49101572983903,
   "start_xy": [
    943930.0904174226,
    6278813.574928822
   ],
   "end_xy": [
    943927.6404205018,
    6278815.306262149
   ]
  }
 },
 "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": {
  "no_bench_suppression": {
   "masked_fraction": 0.072,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.236,
   "obstruction_max_height_m": 19.88,
   "flagged_windows_m": [
    10,
    20,
    25,
    50
   ]
  },
  "excluded_ranges_m": [
   [
    470.0,
    540.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832",
   "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-pr5",
   "road_pbf": "block-batch-fr-pr5.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:ba95a0bf562c86eb"
  },
  "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_E943-N6278_0m5@22LHD6QQ-2025-03-24.tif",
   "data/cache/fr/ign-lidarhd_dtm_E943-N6279_0m5@22LHD6QQ-2025-03-24.tif",
   "data/cache/fr/ign-lidarhd_dtm_E944-N6278_0m5@22LHD6QQ-2025-03-24.tif",
   "data/cache/fr/ign-lidarhd_dtm_E944-N6279_0m5@22LHD6QQ-2025-03-24.tif"
  ],
  "calculated_at": "2026-09-25T09:03:12+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr5.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr5",
  "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": [
   "E943-N6278",
   "E943-N6279",
   "E944-N6278",
   "E944-N6279"
  ],
  "elevation_blocks": [
   "22LHD6QQ@2025-03-24"
  ],
  "ign_dalles": [
   "LHD_FXX_0943_6279_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0943_6280_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0944_6279_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0944_6280_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6QQ"
  ],
  "ign_editions": [
   "2025-03-24"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0943_6279_MNT_O_0M50_LAMB93_IGN69": "2025-03-24",
   "LHD_FXX_0943_6280_MNT_O_0M50_LAMB93_IGN69": "2025-03-24",
   "LHD_FXX_0944_6279_MNT_O_0M50_LAMB93_IGN69": "2025-03-24",
   "LHD_FXX_0944_6280_MNT_O_0M50_LAMB93_IGN69": "2025-03-24"
  },
  "route_summit_trim_m": 305.1,
  "route_summit_trim_loss_m": 10.1,
  "climb_origin": "discovered",
  "structure_own_ways": 2,
  "carriageway": {
   "stations": 45,
   "stations_resolved": 45,
   "width_median_m": 3.75,
   "width_p10_m": 2.5,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.333,
   "unbounded_share": 0.667,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.0,
   "window_m": [
    835.0,
    860.0
   ],
   "width_at_max25_m": 3.12,
   "window_stations": 6,
   "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": 45,
    "stations_resolved": 45,
    "width_median_m": 3.75,
    "width_p10_m": 0.5,
    "width_min_m": 0.5,
    "width_max_m": 11.75,
    "bounded_share": 0.689,
    "unbounded_share": 0.311,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.75,
    "window_m": [
     835.0,
     860.0
    ],
    "width_at_max25_m": 1.88,
    "window_stations": 6,
    "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": "Pontev\u00e8s",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}