{
 "ocl_version": "0.1.0",
 "name": "Chemin de la Gaude",
 "slug": "chemin-de-la-gaude",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.87353061162719,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "start_elevation_m": 162.09212114828858,
   "end_elevation_m": 162.74959176052113,
   "min_gradient_pct": -41.013515728030825,
   "suppressed_max_gradient_pct": 60.933438217573155,
   "suppressed_location_m": [
    377.0,
    379.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.965818378516854,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 25.0,
   "end_distance_m": 28.0,
   "start_elevation_m": 167.02704006224275,
   "end_elevation_m": 167.86601461359825,
   "min_gradient_pct": -32.4977146020179,
   "suppressed_max_gradient_pct": 54.88471684586974,
   "suppressed_location_m": [
    376.0,
    379.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.501219329906917,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 23.0,
   "end_distance_m": 28.0,
   "start_elevation_m": 166.5909536471029,
   "end_elevation_m": 167.86601461359825,
   "min_gradient_pct": -21.09116900294623,
   "suppressed_max_gradient_pct": 37.19729373758469,
   "suppressed_location_m": [
    374.0,
    379.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.473315869495366,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 51.0,
   "end_distance_m": 61.0,
   "start_elevation_m": 172.18584671806812,
   "end_elevation_m": 174.53317830501766,
   "min_gradient_pct": -10.442631391418615,
   "suppressed_max_gradient_pct": 24.015319226416807,
   "suppressed_location_m": [
    369.0,
    379.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.4526566628748,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 41.0,
   "end_distance_m": 61.0,
   "start_elevation_m": 170.0426469724427,
   "end_elevation_m": 174.53317830501766,
   "min_gradient_pct": -3.755092489816292
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.14361506730279,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 41.0,
   "end_distance_m": 66.0,
   "start_elevation_m": 170.0426469724427,
   "end_elevation_m": 175.5785507392684,
   "min_gradient_pct": -2.9141510554757133
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.720269081596772,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 17.0,
   "end_distance_m": 67.0,
   "start_elevation_m": 165.43093723568674,
   "end_elevation_m": 175.79107177648513,
   "min_gradient_pct": 2.1939803175653765
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.29714827402657,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "start_elevation_m": 162.09212114828858,
   "end_elevation_m": 181.38926942231515,
   "min_gradient_pct": 3.6093529277466985
  }
 ],
 "shape": {
  "ascent_concentration": 0.358,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 166.0,
  "shape_class": "sustained"
 },
 "length_m": 618.9999999999776,
 "start_elevation_m": 162.09212114828858,
 "end_elevation_m": 234.43336192291827,
 "endpoint_gain_m": 72.34124077462968,
 "overall_gradient_pct": 11.686791724496333,
 "accumulated_ascent_m": 75.84001091434655,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.501219329906917,
   "start_distance_m": 23.0,
   "end_distance_m": 28.0,
   "midpoint_distance_m": 25.5,
   "start_elevation_m": 166.5909536471029,
   "end_elevation_m": 167.86601461359825,
   "start_xy": [
    1033364.3518415882,
    6299764.496381639
   ],
   "end_xy": [
    1033363.3802854117,
    6299759.5916819945
   ]
  },
  "max_10m": {
   "gradient_pct": 23.473315869495366,
   "start_distance_m": 51.0,
   "end_distance_m": 61.0,
   "midpoint_distance_m": 56.0,
   "start_elevation_m": 172.18584671806812,
   "end_elevation_m": 174.53317830501766,
   "start_xy": [
    1033358.9111269999,
    6299737.030063634
   ],
   "end_xy": [
    1033356.9680146469,
    6299727.220664346
   ]
  },
  "max_20m": {
   "gradient_pct": 22.4526566628748,
   "start_distance_m": 41.0,
   "end_distance_m": 61.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 170.0426469724427,
   "end_elevation_m": 174.53317830501766,
   "start_xy": [
    1033360.8542393529,
    6299746.839462921
   ],
   "end_xy": [
    1033356.9680146469,
    6299727.220664346
   ]
  },
  "max_25m": {
   "gradient_pct": 22.14361506730279,
   "start_distance_m": 41.0,
   "end_distance_m": 66.0,
   "midpoint_distance_m": 53.5,
   "start_elevation_m": 170.0426469724427,
   "end_elevation_m": 175.5785507392684,
   "start_xy": [
    1033360.8542393529,
    6299746.839462921
   ],
   "end_xy": [
    1033355.9964584705,
    6299722.315964702
   ]
  },
  "max_50m": {
   "gradient_pct": 20.720269081596772,
   "start_distance_m": 17.0,
   "end_distance_m": 67.0,
   "midpoint_distance_m": 42.0,
   "start_elevation_m": 165.43093723568674,
   "end_elevation_m": 175.79107177648513,
   "start_xy": [
    1033365.5177089999,
    6299770.382021211
   ],
   "end_xy": [
    1033355.8145498354,
    6299721.332772758
   ]
  },
  "max_100m": {
   "gradient_pct": 19.29714827402657,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 162.09212114828858,
   "end_elevation_m": 181.38926942231515,
   "start_xy": [
    1033368.821,
    6299787.058
   ],
   "end_xy": [
    1033350.4370997603,
    6299688.773856457
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -21.09116900294623,
   "start_distance_m": 434.0,
   "end_distance_m": 439.0,
   "midpoint_distance_m": 436.5,
   "start_elevation_m": 215.39866107803508,
   "end_elevation_m": 214.34410262788776,
   "start_xy": [
    1033095.8693095656,
    6299662.963766695
   ],
   "end_xy": [
    1033091.5652036923,
    6299665.508304498
   ]
  },
  "min_10m": {
   "gradient_pct": -10.442631391418615,
   "start_distance_m": 435.0,
   "end_distance_m": 445.0,
   "midpoint_distance_m": 440.0,
   "start_elevation_m": 215.42827432822546,
   "end_elevation_m": 214.3840111890836,
   "start_xy": [
    1033095.008488391,
    6299663.472674255
   ],
   "end_xy": [
    1033086.4002766444,
    6299668.561749862
   ]
  },
  "min_20m": {
   "gradient_pct": -3.755092489816292,
   "start_distance_m": 435.0,
   "end_distance_m": 455.0,
   "midpoint_distance_m": 445.0,
   "start_elevation_m": 215.42827432822546,
   "end_elevation_m": 214.6772558302622,
   "start_xy": [
    1033095.008488391,
    6299663.472674255
   ],
   "end_xy": [
    1033077.7920648977,
    6299673.650825468
   ]
  },
  "min_25m": {
   "gradient_pct": -2.9141510554757133,
   "start_distance_m": 435.0,
   "end_distance_m": 460.0,
   "midpoint_distance_m": 447.5,
   "start_elevation_m": 215.42827432822546,
   "end_elevation_m": 214.69973656435653,
   "start_xy": [
    1033095.008488391,
    6299663.472674255
   ],
   "end_xy": [
    1033074.017700623,
    6299676.814433416
   ]
  },
  "min_50m": {
   "gradient_pct": 2.1939803175653765,
   "start_distance_m": 410.0,
   "end_distance_m": 460.0,
   "midpoint_distance_m": 435.0,
   "start_elevation_m": 213.60274640557384,
   "end_elevation_m": 214.69973656435653,
   "start_xy": [
    1033118.641234435,
    6299655.576509157
   ],
   "end_xy": [
    1033074.017700623,
    6299676.814433416
   ]
  },
  "min_100m": {
   "gradient_pct": 3.6093529277466985,
   "start_distance_m": 379.0,
   "end_distance_m": 479.0,
   "midpoint_distance_m": 429.0,
   "start_elevation_m": 212.39688751850446,
   "end_elevation_m": 216.00624044625116,
   "start_xy": [
    1033143.9796480518,
    6299639.18959953
   ],
   "end_xy": [
    1033061.9364287315,
    6299691.478773479
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.87353061162719,
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "midpoint_distance_m": 1.0,
   "start_elevation_m": 162.09212114828858,
   "end_elevation_m": 162.74959176052113,
   "start_xy": [
    1033368.821,
    6299787.058
   ],
   "end_xy": [
    1033368.4323775294,
    6299785.096120142
   ]
  },
  "max_3m": {
   "gradient_pct": 27.965818378516854,
   "start_distance_m": 25.0,
   "end_distance_m": 28.0,
   "midpoint_distance_m": 26.5,
   "start_elevation_m": 167.02704006224275,
   "end_elevation_m": 167.86601461359825,
   "start_xy": [
    1033363.9632191176,
    6299762.534501781
   ],
   "end_xy": [
    1033363.3802854117,
    6299759.5916819945
   ]
  }
 },
 "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": 0.01,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.026,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 429.0,
     "end_m": 434.0,
     "raw_pct": 26.74,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.523,
   "obstruction_max_height_m": 23.73,
   "flagged_windows_m": [
    2,
    3,
    5,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    375.0,
    380.0
   ],
   [
    427.0,
    436.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "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_E1032-N6299_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1033-N6299_0m5.tif"
  ],
  "calculated_at": "2026-09-17T02:54:08+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-alps4",
  "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": [
   "E1032-N6299",
   "E1033-N6299"
  ],
  "elevation_blocks": [
   "22LHD6RQ@2025-03-13"
  ],
  "ign_dalles": [
   "LHD_FXX_1032_6300_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_1033_6300_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6RQ"
  ],
  "ign_editions": [
   "2025-03-13"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1032_6300_MNT_O_0M50_LAMB93_IGN69": "2025-03-13",
   "LHD_FXX_1033_6300_MNT_O_0M50_LAMB93_IGN69": "2025-03-13"
  },
  "route_summit_trim_m": 345.2,
  "route_summit_trim_loss_m": 16.8,
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 31,
   "stations_resolved": 31,
   "width_median_m": 4.0,
   "width_p10_m": 2.5,
   "width_min_m": 1.0,
   "width_max_m": 8.25,
   "bounded_share": 0.387,
   "unbounded_share": 0.613,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    41.0,
    66.0
   ],
   "width_at_max25_m": 5.75,
   "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": 31,
    "stations_resolved": 31,
    "width_median_m": 2.75,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 9.25,
    "bounded_share": 1.0,
    "unbounded_share": 0.0,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.75,
    "window_m": [
     41.0,
     66.0
    ],
    "width_at_max25_m": 5.25,
    "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": "Vence",
  "county": "Alpes-Maritimes",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}