{
 "ocl_version": "0.1.0",
 "name": "Route de Cohennoz",
 "slug": "route-de-cohennoz-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 38.610418064445184,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 3536.0,
   "end_distance_m": 3538.0,
   "start_elevation_m": 712.0571391883713,
   "end_elevation_m": 712.8293475496602,
   "min_gradient_pct": -326.2982660403907,
   "suppressed_max_gradient_pct": 323.28655597850116,
   "suppressed_location_m": [
    2598.0,
    2600.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 35.47848101538117,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 3534.0,
   "end_distance_m": 3537.0,
   "start_elevation_m": 711.3302121980383,
   "end_elevation_m": 712.3945666284998,
   "min_gradient_pct": -238.19223718139332,
   "suppressed_max_gradient_pct": 256.46024115663596,
   "suppressed_location_m": [
    2598.0,
    2601.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.835091717331352,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 512.0,
   "end_distance_m": 517.0,
   "start_elevation_m": 463.81693336502707,
   "end_elevation_m": 465.15868795089364,
   "min_gradient_pct": -137.9433666874229,
   "suppressed_max_gradient_pct": 185.4989019798859,
   "suppressed_location_m": [
    32.0,
    37.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.50519295822596,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 3100.0,
   "end_distance_m": 3110.0,
   "start_elevation_m": 670.7487932016937,
   "end_elevation_m": 672.7993124975163,
   "min_gradient_pct": -75.55403228333716,
   "suppressed_max_gradient_pct": 95.08008953398758,
   "suppressed_location_m": [
    32.0,
    42.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 16.60876035116189,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 4353.0,
   "end_distance_m": 4373.0,
   "start_elevation_m": 776.5443489868544,
   "end_elevation_m": 779.8661010570868,
   "min_gradient_pct": -40.473505437733195,
   "suppressed_max_gradient_pct": 50.54962750449221,
   "suppressed_location_m": [
    32.0,
    52.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 15.694545851401926,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 4349.0,
   "end_distance_m": 4374.0,
   "start_elevation_m": 776.0622868911722,
   "end_elevation_m": 779.9859233540227,
   "min_gradient_pct": -31.95514439534918,
   "suppressed_max_gradient_pct": 42.184700341528696,
   "suppressed_location_m": [
    32.0,
    57.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.7708072201101,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4325.0,
   "end_distance_m": 4375.0,
   "start_elevation_m": 773.2156780605927,
   "end_elevation_m": 780.1010816706478,
   "min_gradient_pct": -8.066160826925625,
   "suppressed_max_gradient_pct": 26.10975656069104,
   "suppressed_location_m": [
    32.0,
    82.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 12.133037573231718,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 4313.0,
   "end_distance_m": 4413.0,
   "start_elevation_m": 771.8136049870209,
   "end_elevation_m": 783.9466425602526,
   "min_gradient_pct": -2.089691696089176,
   "suppressed_max_gradient_pct": 17.532698675274446,
   "suppressed_location_m": [
    2598.0,
    2698.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.284,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 77.0,
  "shape_class": "sustained"
 },
 "length_m": 6687.944145665237,
 "start_elevation_m": 426.20804767577874,
 "end_elevation_m": 971.2469166503788,
 "endpoint_gain_m": 545.0388689746001,
 "overall_gradient_pct": 8.149572680385866,
 "accumulated_ascent_m": 600.4094990745665,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.835091717331352,
   "start_distance_m": 512.0,
   "end_distance_m": 517.0,
   "midpoint_distance_m": 514.5,
   "start_elevation_m": 463.81693336502707,
   "end_elevation_m": 465.15868795089364,
   "start_xy": [
    966961.2568600712,
    6522457.350141891
   ],
   "end_xy": [
    966961.4104492838,
    6522462.34778237
   ]
  },
  "max_10m": {
   "gradient_pct": 20.50519295822596,
   "start_distance_m": 3100.0,
   "end_distance_m": 3110.0,
   "midpoint_distance_m": 3105.0,
   "start_elevation_m": 670.7487932016937,
   "end_elevation_m": 672.7993124975163,
   "start_xy": [
    967156.3782843235,
    6521661.801156044
   ],
   "end_xy": [
    967157.9742814421,
    6521671.671051131
   ]
  },
  "max_20m": {
   "gradient_pct": 16.60876035116189,
   "start_distance_m": 4353.0,
   "end_distance_m": 4373.0,
   "midpoint_distance_m": 4363.0,
   "start_elevation_m": 776.5443489868544,
   "end_elevation_m": 779.8661010570868,
   "start_xy": [
    968170.6256473094,
    6522272.508023079
   ],
   "end_xy": [
    968188.6094830687,
    6522281.258731078
   ]
  },
  "max_25m": {
   "gradient_pct": 15.694545851401926,
   "start_distance_m": 4349.0,
   "end_distance_m": 4374.0,
   "midpoint_distance_m": 4361.5,
   "start_elevation_m": 776.0622868911722,
   "end_elevation_m": 779.9859233540227,
   "start_xy": [
    968167.0339854452,
    6522270.747351317
   ],
   "end_xy": [
    968189.5111952464,
    6522281.691067925
   ]
  },
  "max_50m": {
   "gradient_pct": 13.7708072201101,
   "start_distance_m": 4325.0,
   "end_distance_m": 4375.0,
   "midpoint_distance_m": 4350.0,
   "start_elevation_m": 773.2156780605927,
   "end_elevation_m": 780.1010816706478,
   "start_xy": [
    968145.8712756217,
    6522259.439287461
   ],
   "end_xy": [
    968190.412907424,
    6522282.12340477
   ]
  },
  "max_100m": {
   "gradient_pct": 12.133037573231718,
   "start_distance_m": 4313.0,
   "end_distance_m": 4413.0,
   "midpoint_distance_m": 4363.0,
   "start_elevation_m": 771.8136049870209,
   "end_elevation_m": 783.9466425602526,
   "start_xy": [
    968134.8553185418,
    6522254.725319589
   ],
   "end_xy": [
    968226.3280815288,
    6522293.269734256
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -137.9433666874229,
   "start_distance_m": 2593.0,
   "end_distance_m": 2598.0,
   "midpoint_distance_m": 2595.5,
   "start_elevation_m": 628.5266581067644,
   "end_elevation_m": 621.6294897723933,
   "start_xy": [
    967050.8558411539,
    6521467.159548611
   ],
   "end_xy": [
    967050.1864744117,
    6521462.27098819
   ]
  },
  "min_10m": {
   "gradient_pct": -75.55403228333716,
   "start_distance_m": 10.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 15.0,
   "start_elevation_m": 426.469181199216,
   "end_elevation_m": 418.9137779708823,
   "start_xy": [
    966932.3037136781,
    6522659.978341108
   ],
   "end_xy": [
    966936.5564273564,
    6522650.927682217
   ]
  },
  "min_20m": {
   "gradient_pct": -40.473505437733195,
   "start_distance_m": 10.0,
   "end_distance_m": 30.0,
   "midpoint_distance_m": 20.0,
   "start_elevation_m": 426.469181199216,
   "end_elevation_m": 418.37448011166936,
   "start_xy": [
    966932.3037136781,
    6522659.978341108
   ],
   "end_xy": [
    966940.8091410346,
    6522641.877023325
   ]
  },
  "min_25m": {
   "gradient_pct": -31.95514439534918,
   "start_distance_m": 7.0,
   "end_distance_m": 32.0,
   "midpoint_distance_m": 19.5,
   "start_elevation_m": 426.35824233668086,
   "end_elevation_m": 418.36945623784356,
   "start_xy": [
    966931.0278995747,
    6522662.693538776
   ],
   "end_xy": [
    966941.6596837703,
    6522640.066891547
   ]
  },
  "min_50m": {
   "gradient_pct": -8.066160826925625,
   "start_distance_m": 3674.0,
   "end_distance_m": 3724.0,
   "midpoint_distance_m": 3699.0,
   "start_elevation_m": 719.366912182066,
   "end_elevation_m": 715.3338317686032,
   "start_xy": [
    967574.342476716,
    6522019.537817047
   ],
   "end_xy": [
    967619.4368085554,
    6522040.759456436
   ]
  },
  "min_100m": {
   "gradient_pct": -2.089691696089176,
   "start_distance_m": 3614.0,
   "end_distance_m": 3714.0,
   "midpoint_distance_m": 3664.0,
   "start_elevation_m": 717.1359155624332,
   "end_elevation_m": 715.046223866344,
   "start_xy": [
    967525.8247541527,
    6521984.241248476
   ],
   "end_xy": [
    967609.9832832646,
    6522037.49895654
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 38.610418064445184,
   "start_distance_m": 3536.0,
   "end_distance_m": 3538.0,
   "midpoint_distance_m": 3537.0,
   "start_elevation_m": 712.0571391883713,
   "end_elevation_m": 712.8293475496602,
   "start_xy": [
    967464.4722335383,
    6521936.097512647
   ],
   "end_xy": [
    967466.019930577,
    6521937.364254087
   ]
  },
  "max_3m": {
   "gradient_pct": 35.47848101538117,
   "start_distance_m": 3534.0,
   "end_distance_m": 3537.0,
   "midpoint_distance_m": 3535.5,
   "start_elevation_m": 711.3302121980383,
   "end_elevation_m": 712.3945666284998,
   "start_xy": [
    967462.9245364994,
    6521934.830771207
   ],
   "end_xy": [
    967465.2460820576,
    6521936.730883367
   ]
  }
 },
 "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": 0.025,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.073,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.084,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 4,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 3363.0,
     "end_m": 3388.0,
     "raw_pct": 17.08,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 3363.0,
     "end_m": 3383.0,
     "raw_pct": 18.63,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 3364.0,
     "end_m": 3374.0,
     "raw_pct": 29.74,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 3364.0,
     "end_m": 3369.0,
     "raw_pct": 34.86,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 2200.0,
     "end_m": 2205.0,
     "raw_pct": 31.3,
     "reason": "short-step"
    },
    {
     "window_m": 10.0,
     "start_m": 3312.0,
     "end_m": 3322.0,
     "raw_pct": 21.76,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 526.0,
     "end_m": 531.0,
     "raw_pct": 29.67,
     "reason": "mask-edge+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 322.0,
     "end_m": 327.0,
     "raw_pct": 28.44,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.33,
   "obstruction_max_height_m": 40.22,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    68.0
   ],
   [
    320.0,
    329.0
   ],
   [
    492.0,
    497.0
   ],
   [
    524.0,
    533.0
   ],
   [
    535.0,
    547.0
   ],
   [
    555.0,
    590.0
   ],
   [
    610.0,
    680.0
   ],
   [
    2198.0,
    2207.0
   ],
   [
    2591.0,
    2605.0
   ],
   [
    3020.0,
    3060.0
   ],
   [
    3310.0,
    3324.0
   ],
   [
    3361.0,
    3390.0
   ],
   [
    3528.0,
    3533.0
   ],
   [
    3580.0,
    3620.0
   ],
   [
    3680.0,
    3830.0
   ],
   [
    4476.0,
    4481.0
   ],
   [
    4492.0,
    4502.0
   ],
   [
    6667.0,
    6687.0
   ]
  ],
  "review": [],
  "extent": [
   "descends_at_start",
   "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_E966-N6521_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E966-N6522_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E967-N6521_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E967-N6522_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E968-N6522_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E969-N6521_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E969-N6522_0m5.tif"
  ],
  "calculated_at": "2026-09-17T05:16:25+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-alps3",
  "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": [
   "E966-N6521",
   "E966-N6522",
   "E967-N6521",
   "E967-N6522",
   "E968-N6522",
   "E969-N6521",
   "E969-N6522"
  ],
  "elevation_blocks": [
   "21LHD5QL2@2025-03-26"
  ],
  "ign_dalles": [
   "LHD_FXX_0966_6522_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0966_6523_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0967_6522_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0967_6523_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0968_6523_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0969_6522_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0969_6523_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD5QL2"
  ],
  "ign_editions": [
   "2025-03-26"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0966_6522_MNT_O_0M50_LAMB93_IGN69": "2025-03-26",
   "LHD_FXX_0966_6523_MNT_O_0M50_LAMB93_IGN69": "2025-03-26",
   "LHD_FXX_0967_6522_MNT_O_0M50_LAMB93_IGN69": "2025-03-26",
   "LHD_FXX_0967_6523_MNT_O_0M50_LAMB93_IGN69": "2025-03-26",
   "LHD_FXX_0968_6523_MNT_O_0M50_LAMB93_IGN69": "2025-03-26",
   "LHD_FXX_0969_6522_MNT_O_0M50_LAMB93_IGN69": "2025-03-26",
   "LHD_FXX_0969_6523_MNT_O_0M50_LAMB93_IGN69": "2025-03-26"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "structure_mask_ranges_m": [
   [
    0.0,
    43.3
   ],
   [
    6672.9,
    6702.9
   ]
  ],
  "mask_basin_extension_m": 20.0,
  "carriageway": {
   "stations": 274,
   "stations_resolved": 274,
   "width_median_m": 5.25,
   "width_p10_m": 2.25,
   "width_min_m": 0.5,
   "width_max_m": 12.0,
   "bounded_share": 0.609,
   "unbounded_share": 0.391,
   "confidence_median": 0.682,
   "width_median_bounded_m": 5.25,
   "window_m": [
    4349.0,
    4374.0
   ],
   "width_at_max25_m": 4.5,
   "window_stations": 7,
   "single_track": true,
   "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": 274,
    "stations_resolved": 274,
    "width_median_m": 4.5,
    "width_p10_m": 1.0,
    "width_min_m": 0.0,
    "width_max_m": 12.0,
    "bounded_share": 0.92,
    "unbounded_share": 0.08,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.75,
    "window_m": [
     4349.0,
     4374.0
    ],
    "width_at_max25_m": 5.5,
    "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": "Ugine",
  "county": "Savoie",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}