{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.7019, 7.0208)",
 "slug": "discovered-lane-43-7019-7-0208",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.19384309695732,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 77.0,
   "end_distance_m": 79.0,
   "start_elevation_m": 230.69045421620535,
   "end_elevation_m": 231.4143310781445,
   "min_gradient_pct": -13.762462371352058,
   "suppressed_max_gradient_pct": 53.3312558849417,
   "suppressed_location_m": [
    240.0,
    242.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.130146330317036,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 99.0,
   "end_distance_m": 102.0,
   "start_elevation_m": 234.47923373662886,
   "end_elevation_m": 235.32313812653837,
   "min_gradient_pct": -12.772118683795952,
   "suppressed_max_gradient_pct": 48.18580509513026,
   "suppressed_location_m": [
    239.0,
    242.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.50905366609004,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 96.0,
   "end_distance_m": 101.0,
   "start_elevation_m": 233.7399326887239,
   "end_elevation_m": 235.1153853720284,
   "min_gradient_pct": -12.917781020732946,
   "suppressed_max_gradient_pct": 36.46241757994176,
   "suppressed_location_m": [
    216.0,
    221.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.427757998839184,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 69.0,
   "end_distance_m": 79.0,
   "start_elevation_m": 228.97155527826058,
   "end_elevation_m": 231.4143310781445,
   "min_gradient_pct": -0.7970200349024026,
   "suppressed_max_gradient_pct": 28.91430874305115,
   "suppressed_location_m": [
    224.0,
    234.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.371544097956644,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 118.0,
   "end_distance_m": 138.0,
   "start_elevation_m": 238.52361162084327,
   "end_elevation_m": 242.9979204404346,
   "min_gradient_pct": 7.264323756915871,
   "suppressed_max_gradient_pct": 28.31836892575808,
   "suppressed_location_m": [
    213.0,
    233.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.17900354581809,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 112.0,
   "end_distance_m": 137.0,
   "start_elevation_m": 237.2568692132816,
   "end_elevation_m": 242.8016200997361,
   "min_gradient_pct": 7.67044250624383,
   "suppressed_max_gradient_pct": 25.85510611028485,
   "suppressed_location_m": [
    208.0,
    233.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.935274800767615,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 96.0,
   "end_distance_m": 146.0,
   "start_elevation_m": 233.7399326887239,
   "end_elevation_m": 244.70757008910772,
   "min_gradient_pct": 10.079904938062839,
   "suppressed_max_gradient_pct": 23.010188952130534,
   "suppressed_location_m": [
    215.0,
    265.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.669290477815338,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 96.0,
   "end_distance_m": 196.0,
   "start_elevation_m": 233.7399326887239,
   "end_elevation_m": 254.40922316653925,
   "min_gradient_pct": 13.8400902179055,
   "suppressed_max_gradient_pct": 21.38185793376584,
   "suppressed_location_m": [
    133.0,
    233.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.307,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 253.0,
  "shape_class": "sustained"
 },
 "length_m": 282.66692521830856,
 "start_elevation_m": 220.89778474138342,
 "end_elevation_m": 270.7777269408247,
 "endpoint_gain_m": 49.8799421994413,
 "overall_gradient_pct": 17.64618982603577,
 "accumulated_ascent_m": 50.615815374058826,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.50905366609004,
   "start_distance_m": 96.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 98.5,
   "start_elevation_m": 233.7399326887239,
   "end_elevation_m": 235.1153853720284,
   "start_xy": [
    1024104.5528187432,
    6297433.014573117
   ],
   "end_xy": [
    1024099.8435460833,
    6297434.694677582
   ]
  },
  "max_10m": {
   "gradient_pct": 24.427757998839184,
   "start_distance_m": 69.0,
   "end_distance_m": 79.0,
   "midpoint_distance_m": 74.0,
   "start_elevation_m": 228.97155527826058,
   "end_elevation_m": 231.4143310781445,
   "start_xy": [
    1024129.982891106,
    6297423.942009002
   ],
   "end_xy": [
    1024120.5643457865,
    6297427.302217933
   ]
  },
  "max_20m": {
   "gradient_pct": 22.371544097956644,
   "start_distance_m": 118.0,
   "end_distance_m": 138.0,
   "midpoint_distance_m": 128.0,
   "start_elevation_m": 238.52361162084327,
   "end_elevation_m": 242.9979204404346,
   "start_xy": [
    1024083.9844470964,
    6297440.800034427
   ],
   "end_xy": [
    1024065.4175353445,
    6297448.2314406475
   ]
  },
  "max_25m": {
   "gradient_pct": 22.17900354581809,
   "start_distance_m": 112.0,
   "end_distance_m": 137.0,
   "midpoint_distance_m": 124.5,
   "start_elevation_m": 237.2568692132816,
   "end_elevation_m": 242.8016200997361,
   "start_xy": [
    1024089.5171046705,
    6297438.478461648
   ],
   "end_xy": [
    1024066.3483768199,
    6297447.866017403
   ]
  },
  "max_50m": {
   "gradient_pct": 21.935274800767615,
   "start_distance_m": 96.0,
   "end_distance_m": 146.0,
   "midpoint_distance_m": 121.0,
   "start_elevation_m": 233.7399326887239,
   "end_elevation_m": 244.70757008910772,
   "start_xy": [
    1024104.5528187432,
    6297433.014573117
   ],
   "end_xy": [
    1024057.9708035414,
    6297451.154826604
   ]
  },
  "max_100m": {
   "gradient_pct": 20.669290477815338,
   "start_distance_m": 96.0,
   "end_distance_m": 196.0,
   "midpoint_distance_m": 146.0,
   "start_elevation_m": 233.7399326887239,
   "end_elevation_m": 254.40922316653925,
   "start_xy": [
    1024104.5528187432,
    6297433.014573117
   ],
   "end_xy": [
    1024011.730780951,
    6297470.065728837
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -12.917781020732946,
   "start_distance_m": 276.0,
   "end_distance_m": 281.0,
   "midpoint_distance_m": 278.5,
   "start_elevation_m": 271.25102491072164,
   "end_elevation_m": 270.605135859685,
   "start_xy": [
    1023953.2024194965,
    6297510.42733058
   ],
   "end_xy": [
    1023952.6606258864,
    6297515.397889873
   ]
  },
  "min_10m": {
   "gradient_pct": -0.7970200349024026,
   "start_distance_m": 272.0,
   "end_distance_m": 282.0,
   "midpoint_distance_m": 277.0,
   "start_elevation_m": 270.7783749864204,
   "end_elevation_m": 270.69867298293013,
   "start_xy": [
    1023953.6358543846,
    6297506.450883145
   ],
   "end_xy": [
    1023952.5522671643,
    6297516.392001731
   ]
  },
  "min_20m": {
   "gradient_pct": 7.264323756915871,
   "start_distance_m": 4.0,
   "end_distance_m": 24.0,
   "midpoint_distance_m": 14.0,
   "start_elevation_m": 221.27205713102904,
   "end_elevation_m": 222.72492188241222,
   "start_xy": [
    1024168.5581241143,
    6297373.090389684
   ],
   "end_xy": [
    1024156.8305827272,
    6297389.249895657
   ]
  },
  "min_25m": {
   "gradient_pct": 7.67044250624383,
   "start_distance_m": 4.0,
   "end_distance_m": 29.0,
   "midpoint_distance_m": 16.5,
   "start_elevation_m": 221.27205713102904,
   "end_elevation_m": 223.18966775759,
   "start_xy": [
    1024168.5581241143,
    6297373.090389684
   ],
   "end_xy": [
    1024154.3751582596,
    6297393.605454253
   ]
  },
  "min_50m": {
   "gradient_pct": 10.079904938062839,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 220.89778474138342,
   "end_elevation_m": 225.93773721041484,
   "start_xy": [
    1024171.001,
    6297369.923
   ],
   "end_xy": [
    1024144.0623754959,
    6297411.898800357
   ]
  },
  "min_100m": {
   "gradient_pct": 13.8400902179055,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 220.89778474138342,
   "end_elevation_m": 234.73787495928892,
   "start_xy": [
    1024171.001,
    6297369.923
   ],
   "end_xy": [
    1024100.7854006153,
    6297434.358656689
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.19384309695732,
   "start_distance_m": 77.0,
   "end_distance_m": 79.0,
   "midpoint_distance_m": 78.0,
   "start_elevation_m": 230.69045421620535,
   "end_elevation_m": 231.4143310781445,
   "start_xy": [
    1024122.4480548503,
    6297426.6301761465
   ],
   "end_xy": [
    1024120.5643457865,
    6297427.302217933
   ]
  },
  "max_3m": {
   "gradient_pct": 28.130146330317036,
   "start_distance_m": 99.0,
   "end_distance_m": 102.0,
   "midpoint_distance_m": 100.5,
   "start_elevation_m": 234.47923373662886,
   "end_elevation_m": 235.32313812653837,
   "start_xy": [
    1024101.7272551473,
    6297434.022635796
   ],
   "end_xy": [
    1024098.9016915514,
    6297435.030698475
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.138,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 216.0,
     "end_m": 221.0,
     "raw_pct": 36.46,
     "reason": "short-step"
    },
    {
     "window_m": 25.0,
     "start_m": 225.0,
     "end_m": 250.0,
     "raw_pct": 23.76,
     "reason": "staircase+mask-edge"
    },
    {
     "window_m": 10.0,
     "start_m": 224.0,
     "end_m": 234.0,
     "raw_pct": 28.91,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.859,
   "obstruction_max_height_m": 23.96,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    214.0,
    252.0
   ]
  ],
  "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_E1023-N6297_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1024-N6297_0m5.tif"
  ],
  "calculated_at": "2026-09-17T02:33:39+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": [
   "E1023-N6297",
   "E1024-N6297"
  ],
  "elevation_blocks": [
   "21LHD8RP@2025-03-06"
  ],
  "ign_dalles": [
   "LHD_FXX_1023_6298_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_1024_6298_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD8RP"
  ],
  "ign_editions": [
   "2025-03-06"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1023_6298_MNT_O_0M50_LAMB93_IGN69": "2025-03-06",
   "LHD_FXX_1024_6298_MNT_O_0M50_LAMB93_IGN69": "2025-03-06"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 18,
   "stations_resolved": 18,
   "width_median_m": 5.25,
   "width_p10_m": 2.92,
   "width_min_m": 2.75,
   "width_max_m": 10.25,
   "bounded_share": 0.389,
   "unbounded_share": 0.611,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.25,
   "window_m": [
    112.0,
    137.0
   ],
   "width_at_max25_m": 5.5,
   "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": 18,
    "stations_resolved": 18,
    "width_median_m": 1.88,
    "width_p10_m": 0.5,
    "width_min_m": 0.5,
    "width_max_m": 4.75,
    "bounded_share": 1.0,
    "unbounded_share": 0.0,
    "confidence_median": 1.0,
    "width_median_bounded_m": 1.88,
    "window_m": [
     112.0,
     137.0
    ],
    "width_at_max25_m": 1.0,
    "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": "Tourrettes-sur-Loup",
  "county": "Alpes-Maritimes",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}