{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.6704, 7.1536)",
 "slug": "discovered-lane-43-6704-7-1536",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.56076466678978,
   "diagnostic": true,
   "flags": [
    "no_bench_excluded"
   ],
   "start_distance_m": 102.0,
   "end_distance_m": 104.0,
   "start_elevation_m": 30.439988019406066,
   "end_elevation_m": 30.91120331274186,
   "min_gradient_pct": -9.011738037347428,
   "suppressed_max_gradient_pct": 39.39602215029119,
   "suppressed_location_m": [
    136.0,
    138.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.859897821907182,
   "diagnostic": true,
   "flags": [
    "no_bench_excluded"
   ],
   "start_distance_m": 102.0,
   "end_distance_m": 105.0,
   "start_elevation_m": 30.439988019406066,
   "end_elevation_m": 31.12578495406328,
   "min_gradient_pct": 0.2648711454137735,
   "suppressed_max_gradient_pct": 36.91244715844869,
   "suppressed_location_m": [
    135.0,
    138.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.850426068694958,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded"
   ],
   "start_distance_m": 102.0,
   "end_distance_m": 107.0,
   "start_elevation_m": 30.439988019406066,
   "end_elevation_m": 31.582509322840814,
   "min_gradient_pct": 3.0628803320379205,
   "suppressed_max_gradient_pct": 31.136136842293922,
   "suppressed_location_m": [
    133.0,
    138.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.406953367313136,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 100.0,
   "end_distance_m": 110.0,
   "start_elevation_m": 30.004440141331138,
   "end_elevation_m": 32.24513547806245,
   "min_gradient_pct": 3.3962195758006786
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.946620915094677,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 93.0,
   "end_distance_m": 113.0,
   "start_elevation_m": 28.47299023373101,
   "end_elevation_m": 32.862314416749946,
   "min_gradient_pct": 4.6288613101928
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.574938896142186,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 94.0,
   "end_distance_m": 119.0,
   "start_elevation_m": 28.694962938908482,
   "end_elevation_m": 34.08869766294403,
   "min_gradient_pct": 4.964533875932446
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.510623507943947,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded"
   ],
   "start_distance_m": 76.0,
   "end_distance_m": 126.0,
   "start_elevation_m": 25.338252996775417,
   "end_elevation_m": 35.59356475074739,
   "min_gradient_pct": 6.228586081053991,
   "suppressed_max_gradient_pct": 21.104842614372863,
   "suppressed_location_m": [
    88.0,
    138.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.68827643384294,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded"
   ],
   "start_distance_m": 28.0,
   "end_distance_m": 128.0,
   "start_elevation_m": 20.18029430514861,
   "end_elevation_m": 35.86857073899155,
   "min_gradient_pct": 11.83411978167846,
   "suppressed_max_gradient_pct": 18.623144304380343,
   "suppressed_location_m": [
    54.0,
    154.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.346,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 208.0,
  "shape_class": "sustained"
 },
 "length_m": 256.40000000007115,
 "start_elevation_m": 18.170320359652678,
 "end_elevation_m": 55.605024138435205,
 "endpoint_gain_m": 37.43470377878253,
 "overall_gradient_pct": 14.600118478460272,
 "accumulated_ascent_m": 37.731682025618454,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.850426068694958,
   "start_distance_m": 102.0,
   "end_distance_m": 107.0,
   "midpoint_distance_m": 104.5,
   "start_elevation_m": 30.439988019406066,
   "end_elevation_m": 31.582509322840814,
   "start_xy": [
    1034865.0489598991,
    6294442.5404855
   ],
   "end_xy": [
    1034869.9897024072,
    6294443.307990204
   ]
  },
  "max_10m": {
   "gradient_pct": 22.406953367313136,
   "start_distance_m": 100.0,
   "end_distance_m": 110.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 30.004440141331138,
   "end_elevation_m": 32.24513547806245,
   "start_xy": [
    1034863.0726628959,
    6294442.233483619
   ],
   "end_xy": [
    1034872.9541479119,
    6294443.768493026
   ]
  },
  "max_20m": {
   "gradient_pct": 21.946620915094677,
   "start_distance_m": 93.0,
   "end_distance_m": 113.0,
   "midpoint_distance_m": 103.0,
   "start_elevation_m": 28.47299023373101,
   "end_elevation_m": 32.862314416749946,
   "start_xy": [
    1034856.1556233848,
    6294441.1589770345
   ],
   "end_xy": [
    1034875.9191603829,
    6294444.2252103845
   ]
  },
  "max_25m": {
   "gradient_pct": 21.574938896142186,
   "start_distance_m": 94.0,
   "end_distance_m": 119.0,
   "midpoint_distance_m": 106.5,
   "start_elevation_m": 28.694962938908482,
   "end_elevation_m": 34.08869766294403,
   "start_xy": [
    1034857.1437718864,
    6294441.312477975
   ],
   "end_xy": [
    1034881.8577221194,
    6294445.081647482
   ]
  },
  "max_50m": {
   "gradient_pct": 20.510623507943947,
   "start_distance_m": 76.0,
   "end_distance_m": 126.0,
   "midpoint_distance_m": 101.0,
   "start_elevation_m": 25.338252996775417,
   "end_elevation_m": 35.59356475074739,
   "start_xy": [
    1034839.3570988575,
    6294438.549461043
   ],
   "end_xy": [
    1034888.7860441454,
    6294446.080824095
   ]
  },
  "max_100m": {
   "gradient_pct": 15.68827643384294,
   "start_distance_m": 28.0,
   "end_distance_m": 128.0,
   "midpoint_distance_m": 78.0,
   "start_elevation_m": 20.18029430514861,
   "end_elevation_m": 35.86857073899155,
   "start_xy": [
    1034812.789798999,
    6294413.365585074
   ],
   "end_xy": [
    1034890.4508811977,
    6294447.1839662865
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 3.0628803320379205,
   "start_distance_m": 45.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 47.5,
   "start_elevation_m": 21.131469383577777,
   "end_elevation_m": 21.284613400179673,
   "start_xy": [
    1034812.5389357922,
    6294430.202443223
   ],
   "end_xy": [
    1034813.6652378159,
    6294434.558436586
   ]
  },
  "min_10m": {
   "gradient_pct": 3.3962195758006786,
   "start_distance_m": 42.0,
   "end_distance_m": 52.0,
   "midpoint_distance_m": 47.0,
   "start_elevation_m": 21.020719462756457,
   "end_elevation_m": 21.360341420336525,
   "start_xy": [
    1034812.2600830544,
    6294427.215431145
   ],
   "end_xy": [
    1034815.6415348192,
    6294434.865438467
   ]
  },
  "min_20m": {
   "gradient_pct": 4.6288613101928,
   "start_distance_m": 32.0,
   "end_distance_m": 52.0,
   "midpoint_distance_m": 42.0,
   "start_elevation_m": 20.434569158297965,
   "end_elevation_m": 21.360341420336525,
   "start_xy": [
    1034812.0311649814,
    6294417.292985541
   ],
   "end_xy": [
    1034815.6415348192,
    6294434.865438467
   ]
  },
  "min_25m": {
   "gradient_pct": 4.964533875932446,
   "start_distance_m": 27.0,
   "end_distance_m": 52.0,
   "midpoint_distance_m": 39.5,
   "start_elevation_m": 20.119207951353413,
   "end_elevation_m": 21.360341420336525,
   "start_xy": [
    1034812.9794575033,
    6294412.383734957
   ],
   "end_xy": [
    1034815.6415348192,
    6294434.865438467
   ]
  },
  "min_50m": {
   "gradient_pct": 6.228586081053991,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 18.170320359652678,
   "end_elevation_m": 21.284613400179673,
   "start_xy": [
    1034802.208,
    6294392.515
   ],
   "end_xy": [
    1034813.6652378159,
    6294434.558436586
   ]
  },
  "min_100m": {
   "gradient_pct": 11.83411978167846,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 18.170320359652678,
   "end_elevation_m": 30.004440141331138,
   "start_xy": [
    1034802.208,
    6294392.515
   ],
   "end_xy": [
    1034863.0726628959,
    6294442.233483619
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.56076466678978,
   "start_distance_m": 102.0,
   "end_distance_m": 104.0,
   "midpoint_distance_m": 103.0,
   "start_elevation_m": 30.439988019406066,
   "end_elevation_m": 30.91120331274186,
   "start_xy": [
    1034865.0489598991,
    6294442.5404855
   ],
   "end_xy": [
    1034867.0252569023,
    6294442.847487382
   ]
  },
  "max_3m": {
   "gradient_pct": 22.859897821907182,
   "start_distance_m": 102.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 103.5,
   "start_elevation_m": 30.439988019406066,
   "end_elevation_m": 31.12578495406328,
   "start_xy": [
    1034865.0489598991,
    6294442.5404855
   ],
   "end_xy": [
    1034868.0134054039,
    6294443.000988322
   ]
  }
 },
 "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": 0.16,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.236,
   "obstruction_max_height_m": 19.25,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    130.0,
    170.0
   ]
  ],
  "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_E1034-N6294_0m5.tif"
  ],
  "calculated_at": "2026-09-17T03:08:58+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": [
   "E1034-N6294"
  ],
  "elevation_blocks": [
   "22LHD6RQ@2025-03-13"
  ],
  "ign_dalles": [
   "LHD_FXX_1034_6295_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6RQ"
  ],
  "ign_editions": [
   "2025-03-13"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1034_6295_MNT_O_0M50_LAMB93_IGN69": "2025-03-13"
  },
  "route_cut_m": 256.4,
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 17,
   "stations_resolved": 17,
   "width_median_m": 5.0,
   "width_p10_m": 3.0,
   "width_min_m": 2.5,
   "width_max_m": 12.0,
   "bounded_share": 0.294,
   "unbounded_share": 0.706,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    94.0,
    119.0
   ],
   "width_at_max25_m": 4.5,
   "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": 17,
    "stations_resolved": 17,
    "width_median_m": 5.0,
    "width_p10_m": 2.4,
    "width_min_m": 2.0,
    "width_max_m": 12.0,
    "bounded_share": 0.647,
    "unbounded_share": 0.353,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.75,
    "window_m": [
     94.0,
     119.0
    ],
    "width_at_max25_m": 3.75,
    "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": "Cagnes-sur-Mer",
  "county": "Alpes-Maritimes",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}