{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-38.0867, 176.1573)",
 "slug": "discovered-lane-38-0867-176-1573",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.25778886709122,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 703.0,
   "end_distance_m": 705.0,
   "start_elevation_m": 373.03771253519943,
   "end_elevation_m": 373.48286831254126,
   "min_gradient_pct": -9.585180603178856,
   "suppressed_max_gradient_pct": 33.22163342969304,
   "suppressed_location_m": [
    0.0,
    2.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.092310209527948,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 702.0,
   "end_distance_m": 705.0,
   "start_elevation_m": 372.8200990062554,
   "end_elevation_m": 373.48286831254126,
   "min_gradient_pct": -9.602884462363667,
   "suppressed_max_gradient_pct": 25.23795373167938,
   "suppressed_location_m": [
    0.0,
    3.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.546101787081398,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 700.0,
   "end_distance_m": 705.0,
   "start_elevation_m": 372.4055632231872,
   "end_elevation_m": 373.48286831254126,
   "min_gradient_pct": -9.088293634210913
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.288826634104225,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 695.0,
   "end_distance_m": 705.0,
   "start_elevation_m": 371.35398564913083,
   "end_elevation_m": 373.48286831254126,
   "min_gradient_pct": -8.875931358406888
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.676554677979766,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 685.0,
   "end_distance_m": 705.0,
   "start_elevation_m": 369.3475573769453,
   "end_elevation_m": 373.48286831254126,
   "min_gradient_pct": -8.529335882014664
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.556697653535593,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 692.0,
   "end_distance_m": 717.0,
   "start_elevation_m": 370.74864508844144,
   "end_elevation_m": 375.88781950182533,
   "min_gradient_pct": -8.121943807495427
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.372475853331025,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 687.0,
   "end_distance_m": 737.0,
   "start_elevation_m": 369.74529346476936,
   "end_elevation_m": 379.9315313914349,
   "min_gradient_pct": -6.019742355350218
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.560359025047774,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 644.0,
   "end_distance_m": 744.0,
   "start_elevation_m": 361.68823139201766,
   "end_elevation_m": 381.24859041706543,
   "min_gradient_pct": -3.704199908959538
  }
 ],
 "shape": {
  "ascent_concentration": 0.506,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 166.0,
  "shape_class": "stepped"
 },
 "length_m": 789.095449256063,
 "start_elevation_m": 330.391538169007,
 "end_elevation_m": 384.2846287553422,
 "endpoint_gain_m": 53.893090586335234,
 "overall_gradient_pct": 6.829730248367815,
 "accumulated_ascent_m": 60.895596836016125,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.546101787081398,
   "start_distance_m": 700.0,
   "end_distance_m": 705.0,
   "midpoint_distance_m": 702.5,
   "start_elevation_m": 372.4055632231872,
   "end_elevation_m": 373.48286831254126,
   "start_xy": [
    1876698.5621473952,
    5779870.517245563
   ],
   "end_xy": [
    1876693.6481335883,
    5779871.440537665
   ]
  },
  "max_10m": {
   "gradient_pct": 21.288826634104225,
   "start_distance_m": 695.0,
   "end_distance_m": 705.0,
   "midpoint_distance_m": 700.0,
   "start_elevation_m": 371.35398564913083,
   "end_elevation_m": 373.48286831254126,
   "start_xy": [
    1876703.4761612022,
    5779869.593953461
   ],
   "end_xy": [
    1876693.6481335883,
    5779871.440537665
   ]
  },
  "max_20m": {
   "gradient_pct": 20.676554677979766,
   "start_distance_m": 685.0,
   "end_distance_m": 705.0,
   "midpoint_distance_m": 695.0,
   "start_elevation_m": 369.3475573769453,
   "end_elevation_m": 373.48286831254126,
   "start_xy": [
    1876713.3041888159,
    5779867.747369258
   ],
   "end_xy": [
    1876693.6481335883,
    5779871.440537665
   ]
  },
  "max_25m": {
   "gradient_pct": 20.556697653535593,
   "start_distance_m": 692.0,
   "end_distance_m": 717.0,
   "midpoint_distance_m": 704.5,
   "start_elevation_m": 370.74864508844144,
   "end_elevation_m": 375.88781950182533,
   "start_xy": [
    1876706.4245694862,
    5779869.039978201
   ],
   "end_xy": [
    1876682.0439239454,
    5779874.490176161
   ]
  },
  "max_50m": {
   "gradient_pct": 20.372475853331025,
   "start_distance_m": 687.0,
   "end_distance_m": 737.0,
   "midpoint_distance_m": 712.0,
   "start_elevation_m": 369.74529346476936,
   "end_elevation_m": 379.9315313914349,
   "start_xy": [
    1876711.3385832931,
    5779868.116686098
   ],
   "end_xy": [
    1876662.7217238003,
    5779879.65278999
   ]
  },
  "max_100m": {
   "gradient_pct": 19.560359025047774,
   "start_distance_m": 644.0,
   "end_distance_m": 744.0,
   "midpoint_distance_m": 694.0,
   "start_elevation_m": 361.68823139201766,
   "end_elevation_m": 381.24859041706543,
   "start_xy": [
    1876753.416815414,
    5779859.316868512
   ],
   "end_xy": [
    1876655.9589537494,
    5779881.459704831
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -9.088293634210913,
   "start_distance_m": 279.0,
   "end_distance_m": 284.0,
   "midpoint_distance_m": 281.5,
   "start_elevation_m": 347.8880491712667,
   "end_elevation_m": 347.43363448955614,
   "start_xy": [
    1877043.0626409298,
    5780010.226627691
   ],
   "end_xy": [
    1877040.037146263,
    5780006.245876252
   ]
  },
  "min_10m": {
   "gradient_pct": -8.875931358406888,
   "start_distance_m": 278.0,
   "end_distance_m": 288.0,
   "midpoint_distance_m": 283.0,
   "start_elevation_m": 347.9778473466392,
   "end_elevation_m": 347.0902542107985,
   "start_xy": [
    1877043.667739863,
    5780011.022777978
   ],
   "end_xy": [
    1877037.6167505297,
    5780003.0612751
   ]
  },
  "min_20m": {
   "gradient_pct": -8.529335882014664,
   "start_distance_m": 269.0,
   "end_distance_m": 289.0,
   "midpoint_distance_m": 279.0,
   "start_elevation_m": 348.7101012298702,
   "end_elevation_m": 347.00423405346726,
   "start_xy": [
    1877049.1136302631,
    5780018.18813057
   ],
   "end_xy": [
    1877037.0116515965,
    5780002.265124812
   ]
  },
  "min_25m": {
   "gradient_pct": -8.121943807495427,
   "start_distance_m": 266.0,
   "end_distance_m": 291.0,
   "midpoint_distance_m": 278.5,
   "start_elevation_m": 348.8936211367155,
   "end_elevation_m": 346.86313518484167,
   "start_xy": [
    1877050.928927063,
    5780020.576581433
   ],
   "end_xy": [
    1877035.8014537299,
    5780000.672824237
   ]
  },
  "min_50m": {
   "gradient_pct": -6.019742355350218,
   "start_distance_m": 354.0,
   "end_distance_m": 404.0,
   "midpoint_distance_m": 379.0,
   "start_elevation_m": 345.9772681355523,
   "end_elevation_m": 342.9673969578772,
   "start_xy": [
    1876996.513145063,
    5779951.449919853
   ],
   "end_xy": [
    1876964.6017032943,
    5779912.961138024
   ]
  },
  "min_100m": {
   "gradient_pct": -3.704199908959538,
   "start_distance_m": 321.0,
   "end_distance_m": 421.0,
   "midpoint_distance_m": 371.0,
   "start_elevation_m": 346.44917782486317,
   "end_elevation_m": 342.74497791590363,
   "start_xy": [
    1877017.64848573,
    5779976.7883156
   ],
   "end_xy": [
    1876953.990173225,
    5779899.679743911
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.25778886709122,
   "start_distance_m": 703.0,
   "end_distance_m": 705.0,
   "midpoint_distance_m": 704.0,
   "start_elevation_m": 373.03771253519943,
   "end_elevation_m": 373.48286831254126,
   "start_xy": [
    1876695.613739111,
    5779871.071220824
   ],
   "end_xy": [
    1876693.6481335883,
    5779871.440537665
   ]
  },
  "max_3m": {
   "gradient_pct": 22.092310209527948,
   "start_distance_m": 702.0,
   "end_distance_m": 705.0,
   "midpoint_distance_m": 703.5,
   "start_elevation_m": 372.8200990062554,
   "end_elevation_m": 373.48286831254126,
   "start_xy": [
    1876696.5965418722,
    5779870.886562403
   ],
   "end_xy": [
    1876693.6481335883,
    5779871.440537665
   ]
  }
 },
 "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": 0.027,
   "windows_resited": [
    2.0,
    3.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.006,
   "obstruction_max_height_m": 10.0,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "f5ccc1713da600fbea2ba1433fb64f96644949ee",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:8c94015b54267da4",
   "python": "3.14.4",
   "numpy": "2.5.3",
   "rasterio": "1.5.1",
   "pyproj": "3.8.0",
   "laspy": "2.7.0",
   "shapely": "2.1.2",
   "pyosmium": "4.3.1",
   "libosmium": "2.23.1",
   "gdal": "3.12.4",
   "proj": "9.8.1",
   "run_id": "nz-n5",
   "road_pbf": "block-batch-nz-n5.osm.pbf",
   "region_key": "nz",
   "crs": "EPSG:2193",
   "elevation_provider_key": "nz-linz",
   "tile_index": "stac",
   "authority": "linz",
   "registry_pbf": "new-zealand-2026-09-26.osm.pbf",
   "tile_index_snapshot": "sha256:5991b43afbe40ae2"
  },
  "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:2193",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/nz/BE37.tiff"
  ],
  "calculated_at": "2026-09-28T05:48:40+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-nz-n5.osm.pbf",
  "osm_snapshot": "",
  "run_id": "nz-n5",
  "elevation_provider": "LINZ nz-elevation",
  "elevation_licence": "CC BY 4.0 \u2014 Toit\u016b Te Whenua Land Information New Zealand \u2014 https://nz-elevation.s3.ap-southeast-2.amazonaws.com/LICENSE",
  "elevation_dataset": "New Zealand 1 m DEM/DSM national LiDAR mosaic \u2014 Toit\u016b Te Whenua Land Information New Zealand (LINZ), vertical datum NZVD2016 (LINZ documentation; not re-verified against a benchmark)",
  "elevation_tile_ids": [
   "BE37"
  ],
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 1,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "carriageway": {
   "stations": 38,
   "stations_resolved": 38,
   "width_median_m": 4.25,
   "width_p10_m": 3.25,
   "width_min_m": 1.25,
   "width_max_m": 9.75,
   "bounded_share": 0.079,
   "unbounded_share": 0.921,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.5,
   "window_m": [
    692.0,
    717.0
   ],
   "width_at_max25_m": 4.25,
   "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": 38,
    "stations_resolved": 38,
    "width_median_m": 8.88,
    "width_p10_m": 3.17,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.474,
    "unbounded_share": 0.526,
    "confidence_median": 0.0,
    "width_median_bounded_m": 5.25,
    "window_m": [
     692.0,
     717.0
    ],
    "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": "Bay of Plenty",
  "county": "Bay of Plenty",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}