{
 "ocl_version": "0.1.0",
 "name": "Rue des Liseaux",
 "slug": "rue-des-liseaux",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 37.161315038571274,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 926.0,
   "end_distance_m": 928.0,
   "start_elevation_m": 837.0228128863465,
   "end_elevation_m": 837.7660391871179,
   "min_gradient_pct": -12.809007380423054,
   "suppressed_max_gradient_pct": 169.35040045448204,
   "suppressed_location_m": [
    4.0,
    6.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.86449497865063,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 925.0,
   "end_distance_m": 928.0,
   "start_elevation_m": 836.9001043377584,
   "end_elevation_m": 837.7660391871179,
   "min_gradient_pct": -12.832389451648396,
   "suppressed_max_gradient_pct": 132.30735988873525,
   "suppressed_location_m": [
    3.0,
    6.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.435837085937237,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 923.0,
   "end_distance_m": 928.0,
   "start_elevation_m": 836.4442473328211,
   "end_elevation_m": 837.7660391871179,
   "min_gradient_pct": -11.803606147866503,
   "suppressed_max_gradient_pct": 94.04570617969057,
   "suppressed_location_m": [
    3.0,
    8.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.971120328136294,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1001.0,
   "end_distance_m": 1011.0,
   "start_elevation_m": 851.2632062228514,
   "end_elevation_m": 853.560318255665,
   "min_gradient_pct": -9.217420744687388,
   "suppressed_max_gradient_pct": 57.43533946908428,
   "suppressed_location_m": [
    3.0,
    13.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.490885377971267,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1041.0,
   "end_distance_m": 1061.0,
   "start_elevation_m": 858.2822454097071,
   "end_elevation_m": 862.5804224853014,
   "min_gradient_pct": -5.834771432305956,
   "suppressed_max_gradient_pct": 39.187994497683576,
   "suppressed_location_m": [
    3.0,
    23.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.164684566474534,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1046.0,
   "end_distance_m": 1071.0,
   "start_elevation_m": 859.3366195696433,
   "end_elevation_m": 864.6277907112619,
   "min_gradient_pct": -4.528841094164818,
   "suppressed_max_gradient_pct": 34.68948275931689,
   "suppressed_location_m": [
    3.0,
    28.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.688033029727876,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 961.0,
   "end_distance_m": 1011.0,
   "start_elevation_m": 843.7163017408011,
   "end_elevation_m": 853.560318255665,
   "min_gradient_pct": -0.3410169054736798,
   "suppressed_max_gradient_pct": 21.53800654366478,
   "suppressed_location_m": [
    3.0,
    53.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.39022338461257,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 911.0,
   "end_distance_m": 1011.0,
   "start_elevation_m": 834.1700948710525,
   "end_elevation_m": 853.560318255665,
   "min_gradient_pct": 3.0014177985183323
  }
 ],
 "shape": {
  "ascent_concentration": 0.344,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 337.0,
  "shape_class": "sustained"
 },
 "length_m": 1117.1901901522494,
 "start_elevation_m": 723.4463659494604,
 "end_elevation_m": 866.3504591284332,
 "endpoint_gain_m": 142.90409317897274,
 "overall_gradient_pct": 12.791384532252108,
 "accumulated_ascent_m": 144.18869609686624,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.435837085937237,
   "start_distance_m": 923.0,
   "end_distance_m": 928.0,
   "midpoint_distance_m": 925.5,
   "start_elevation_m": 836.4442473328211,
   "end_elevation_m": 837.7660391871179,
   "start_xy": [
    970703.8959392295,
    6466136.786547529
   ],
   "end_xy": [
    970707.069792629,
    6466140.596763408
   ]
  },
  "max_10m": {
   "gradient_pct": 22.971120328136294,
   "start_distance_m": 1001.0,
   "end_distance_m": 1011.0,
   "midpoint_distance_m": 1006.0,
   "start_elevation_m": 851.2632062228514,
   "end_elevation_m": 853.560318255665,
   "start_xy": [
    970775.9999115375,
    6466162.200818148
   ],
   "end_xy": [
    970785.8873365093,
    6466163.566800846
   ]
  },
  "max_20m": {
   "gradient_pct": 21.490885377971267,
   "start_distance_m": 1041.0,
   "end_distance_m": 1061.0,
   "midpoint_distance_m": 1051.0,
   "start_elevation_m": 858.2822454097071,
   "end_elevation_m": 862.5804224853014,
   "start_xy": [
    970812.81304682,
    6466150.477153853
   ],
   "end_xy": [
    970831.4270350114,
    6466144.610494772
   ]
  },
  "max_25m": {
   "gradient_pct": 21.164684566474534,
   "start_distance_m": 1046.0,
   "end_distance_m": 1071.0,
   "midpoint_distance_m": 1058.5,
   "start_elevation_m": 859.3366195696433,
   "end_elevation_m": 864.6277907112619,
   "start_xy": [
    970817.2034109422,
    6466148.08451872
   ],
   "end_xy": [
    970840.1669363868,
    6466139.808240787
   ]
  },
  "max_50m": {
   "gradient_pct": 19.688033029727876,
   "start_distance_m": 961.0,
   "end_distance_m": 1011.0,
   "midpoint_distance_m": 986.0,
   "start_elevation_m": 843.7163017408011,
   "end_elevation_m": 853.560318255665,
   "start_xy": [
    970736.8414084158,
    6466154.581359182
   ],
   "end_xy": [
    970785.8873365093,
    6466163.566800846
   ]
  },
  "max_100m": {
   "gradient_pct": 19.39022338461257,
   "start_distance_m": 911.0,
   "end_distance_m": 1011.0,
   "midpoint_distance_m": 961.0,
   "start_elevation_m": 834.1700948710525,
   "end_elevation_m": 853.560318255665,
   "start_xy": [
    970696.2236563236,
    6466127.783113417
   ],
   "end_xy": [
    970785.8873365093,
    6466163.566800846
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.803606147866503,
   "start_distance_m": 121.0,
   "end_distance_m": 126.0,
   "midpoint_distance_m": 123.5,
   "start_elevation_m": 737.8621911501463,
   "end_elevation_m": 737.2720108427529,
   "start_xy": [
    970189.5646215247,
    6465694.730066449
   ],
   "end_xy": [
    970194.365717088,
    6465693.333828149
   ]
  },
  "min_10m": {
   "gradient_pct": -9.217420744687388,
   "start_distance_m": 120.0,
   "end_distance_m": 130.0,
   "midpoint_distance_m": 125.0,
   "start_elevation_m": 737.9390211350253,
   "end_elevation_m": 737.0172790605566,
   "start_xy": [
    970188.604402412,
    6465695.00931411
   ],
   "end_xy": [
    970198.201657599,
    6465692.2013470465
   ]
  },
  "min_20m": {
   "gradient_pct": -5.834771432305956,
   "start_distance_m": 118.0,
   "end_distance_m": 138.0,
   "midpoint_distance_m": 128.0,
   "start_elevation_m": 737.9825954723149,
   "end_elevation_m": 736.8156411858537,
   "start_xy": [
    970186.6839641867,
    6465695.56780943
   ],
   "end_xy": [
    970205.7597396995,
    6465689.57924961
   ]
  },
  "min_25m": {
   "gradient_pct": -4.528841094164818,
   "start_distance_m": 118.0,
   "end_distance_m": 143.0,
   "midpoint_distance_m": 130.5,
   "start_elevation_m": 737.9825954723149,
   "end_elevation_m": 736.8503851987737,
   "start_xy": [
    970186.6839641867,
    6465695.56780943
   ],
   "end_xy": [
    970210.4835410124,
    6465687.940438714
   ]
  },
  "min_50m": {
   "gradient_pct": -0.3410169054736798,
   "start_distance_m": 97.0,
   "end_distance_m": 147.0,
   "midpoint_distance_m": 122.0,
   "start_elevation_m": 737.1549407471252,
   "end_elevation_m": 736.9844322943884,
   "start_xy": [
    970167.8267890174,
    6465704.469999619
   ],
   "end_xy": [
    970214.2625820627,
    6465686.629389996
   ]
  },
  "min_100m": {
   "gradient_pct": 3.0014177985183323,
   "start_distance_m": 50.0,
   "end_distance_m": 150.0,
   "midpoint_distance_m": 100.0,
   "start_elevation_m": 734.1734397539683,
   "end_elevation_m": 737.1748575524866,
   "start_xy": [
    970129.458557055,
    6465731.479097697
   ],
   "end_xy": [
    970217.0968628504,
    6465685.646103458
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 37.161315038571274,
   "start_distance_m": 926.0,
   "end_distance_m": 928.0,
   "midpoint_distance_m": 927.0,
   "start_elevation_m": 837.0228128863465,
   "end_elevation_m": 837.7660391871179,
   "start_xy": [
    970705.7302380736,
    6466139.160436269
   ],
   "end_xy": [
    970707.069792629,
    6466140.596763408
   ]
  },
  "max_3m": {
   "gradient_pct": 28.86449497865063,
   "start_distance_m": 925.0,
   "end_distance_m": 928.0,
   "midpoint_distance_m": 926.5,
   "start_elevation_m": 836.9001043377584,
   "end_elevation_m": 837.7660391871179,
   "start_xy": [
    970705.1188051256,
    6466138.369140022
   ],
   "end_xy": [
    970707.069792629,
    6466140.596763408
   ]
  }
 },
 "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": 0.006,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.019,
   "windows_resited": [
    10.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 10.0,
     "start_m": 10.0,
     "end_m": 20.0,
     "raw_pct": 23.06,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.231,
   "obstruction_max_height_m": 23.55,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    2.0,
    22.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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_E970-N6465_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E970-N6466_0m5.tif"
  ],
  "calculated_at": "2026-09-17T03:32:37+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": [
   "E970-N6465",
   "E970-N6466"
  ],
  "elevation_blocks": [
   "21LHD6QM@2025-02-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0970_6466_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0970_6467_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD6QM"
  ],
  "ign_editions": [
   "2025-02-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0970_6466_MNT_O_0M50_LAMB93_IGN69": "2025-02-20",
   "LHD_FXX_0970_6467_MNT_O_0M50_LAMB93_IGN69": "2025-02-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 8,
  "carriageway": {
   "stations": 51,
   "stations_resolved": 51,
   "width_median_m": 5.25,
   "width_p10_m": 3.5,
   "width_min_m": 2.0,
   "width_max_m": 12.0,
   "bounded_share": 0.196,
   "unbounded_share": 0.804,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.0,
   "window_m": [
    1046.0,
    1071.0
   ],
   "width_at_max25_m": 5.25,
   "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": 51,
    "stations_resolved": 51,
    "width_median_m": 3.5,
    "width_p10_m": 1.25,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.804,
    "unbounded_share": 0.196,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.25,
    "window_m": [
     1046.0,
     1071.0
    ],
    "width_at_max25_m": 3.5,
    "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": "Saint-Martin-de-la-Porte",
  "county": "Savoie",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}