{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-38.1605, 176.3944)",
 "slug": "discovered-lane-38-1605-176-3944",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 45.300832546547554,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 421.0,
   "end_distance_m": 423.0,
   "start_elevation_m": 336.0227799298333,
   "end_elevation_m": 336.92879658076424,
   "min_gradient_pct": -28.874073815569545,
   "suppressed_max_gradient_pct": 79.67775131674557,
   "suppressed_location_m": [
    400.0,
    402.0
   ],
   "suppressed_min_gradient_pct": -48.962465942409494,
   "suppressed_min_location_m": [
    513.0,
    515.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 40.62182262410564,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 420.0,
   "end_distance_m": 423.0,
   "start_elevation_m": 335.7101419020411,
   "end_elevation_m": 336.92879658076424,
   "min_gradient_pct": -26.67755361244417,
   "suppressed_max_gradient_pct": 72.12639380944476,
   "suppressed_location_m": [
    408.0,
    411.0
   ],
   "suppressed_min_gradient_pct": -39.183053579489524,
   "suppressed_min_location_m": [
    513.0,
    516.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 32.57297500673417,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "suppression_unstable",
    "canopy_or_structure"
   ],
   "start_distance_m": 420.0,
   "end_distance_m": 425.0,
   "start_elevation_m": 335.7101419020411,
   "end_elevation_m": 337.3387906523778,
   "min_gradient_pct": -17.526157458436273,
   "suppressed_max_gradient_pct": 72.1189882581939,
   "suppressed_location_m": [
    406.0,
    411.0
   ],
   "suppressed_min_gradient_pct": -36.321186729009014,
   "suppressed_min_location_m": [
    513.0,
    518.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.928476368133943,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 373.0,
   "end_distance_m": 383.0,
   "start_elevation_m": 319.5190722381823,
   "end_elevation_m": 322.01191987499567,
   "min_gradient_pct": -6.19168557343869,
   "suppressed_max_gradient_pct": 69.34133874471001,
   "suppressed_location_m": [
    400.0,
    410.0
   ],
   "suppressed_min_gradient_pct": -30.210632541438827,
   "suppressed_min_location_m": [
    511.0,
    521.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.75813076509928,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 364.0,
   "end_distance_m": 384.0,
   "start_elevation_m": 317.48735400080557,
   "end_elevation_m": 322.2389801538254,
   "min_gradient_pct": -4.934802937501672,
   "suppressed_max_gradient_pct": 60.452168199107916,
   "suppressed_location_m": [
    393.0,
    413.0
   ],
   "suppressed_min_gradient_pct": -13.632572807324266,
   "suppressed_min_location_m": [
    511.0,
    531.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.411475208398315,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 360.0,
   "end_distance_m": 385.0,
   "start_elevation_m": 316.60363277638663,
   "end_elevation_m": 322.4565015784862,
   "min_gradient_pct": -4.553755709847792,
   "suppressed_max_gradient_pct": 49.29161847673731,
   "suppressed_location_m": [
    393.0,
    418.0
   ],
   "suppressed_min_gradient_pct": -10.160904620790234,
   "suppressed_min_location_m": [
    511.0,
    536.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.532533879150037,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 337.0,
   "end_distance_m": 387.0,
   "start_elevation_m": 311.9944353180247,
   "end_elevation_m": 322.76070225759975,
   "min_gradient_pct": -2.378094669945199,
   "suppressed_max_gradient_pct": 35.73038679755916,
   "suppressed_location_m": [
    363.0,
    413.0
   ],
   "suppressed_min_gradient_pct": -3.586778020723841,
   "suppressed_min_location_m": [
    511.0,
    561.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.862996561333375,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 686.0,
   "end_distance_m": 786.0,
   "start_elevation_m": 365.8174630049899,
   "end_elevation_m": 383.6804595663233,
   "min_gradient_pct": -1.2230062113725921,
   "suppressed_max_gradient_pct": 27.174011179971217,
   "suppressed_location_m": [
    337.0,
    437.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.508,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 178.0,
  "shape_class": "stepped"
 },
 "length_m": 967.600000000387,
 "start_elevation_m": 297.6545506762856,
 "end_elevation_m": 389.1843879672567,
 "endpoint_gain_m": 91.5298372909711,
 "overall_gradient_pct": 9.459470575747673,
 "accumulated_ascent_m": 98.79850295255784,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 32.57297500673417,
   "start_distance_m": 420.0,
   "end_distance_m": 425.0,
   "midpoint_distance_m": 422.5,
   "start_elevation_m": 335.7101419020411,
   "end_elevation_m": 337.3387906523778,
   "start_xy": [
    1897457.3660098575,
    5770708.121344136
   ],
   "end_xy": [
    1897456.7449088083,
    5770713.082617509
   ]
  },
  "max_10m": {
   "gradient_pct": 24.928476368133943,
   "start_distance_m": 373.0,
   "end_distance_m": 383.0,
   "midpoint_distance_m": 378.0,
   "start_elevation_m": 319.5190722381823,
   "end_elevation_m": 322.01191987499567,
   "start_xy": [
    1897439.4087912268,
    5770664.858977083
   ],
   "end_xy": [
    1897443.5961804905,
    5770673.940043714
   ]
  },
  "max_20m": {
   "gradient_pct": 23.75813076509928,
   "start_distance_m": 364.0,
   "end_distance_m": 384.0,
   "midpoint_distance_m": 374.0,
   "start_elevation_m": 317.48735400080557,
   "end_elevation_m": 322.2389801538254,
   "start_xy": [
    1897435.8314031123,
    5770656.601315871
   ],
   "end_xy": [
    1897444.0149194167,
    5770674.848150377
   ]
  },
  "max_25m": {
   "gradient_pct": 23.411475208398315,
   "start_distance_m": 360.0,
   "end_distance_m": 385.0,
   "midpoint_distance_m": 372.5,
   "start_elevation_m": 316.60363277638663,
   "end_elevation_m": 322.4565015784862,
   "start_xy": [
    1897434.2673409253,
    5770652.919779578
   ],
   "end_xy": [
    1897444.433658343,
    5770675.7562570395
   ]
  },
  "max_50m": {
   "gradient_pct": 21.532533879150037,
   "start_distance_m": 337.0,
   "end_distance_m": 387.0,
   "midpoint_distance_m": 362.0,
   "start_elevation_m": 311.9944353180247,
   "end_elevation_m": 322.76070225759975,
   "start_xy": [
    1897423.9715134588,
    5770632.468336073
   ],
   "end_xy": [
    1897445.2711361959,
    5770677.572470366
   ]
  },
  "max_100m": {
   "gradient_pct": 17.862996561333375,
   "start_distance_m": 686.0,
   "end_distance_m": 786.0,
   "midpoint_distance_m": 736.0,
   "start_elevation_m": 365.8174630049899,
   "end_elevation_m": 383.6804595663233,
   "start_xy": [
    1897390.171159917,
    5770916.370380401
   ],
   "end_xy": [
    1897423.1635206866,
    5770859.301799829
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -17.526157458436273,
   "start_distance_m": 472.0,
   "end_distance_m": 477.0,
   "midpoint_distance_m": 474.5,
   "start_elevation_m": 344.2542018351283,
   "end_elevation_m": 343.3778939622065,
   "start_xy": [
    1897432.5945434237,
    5770751.117338657
   ],
   "end_xy": [
    1897428.6936826406,
    5770754.245163005
   ]
  },
  "min_10m": {
   "gradient_pct": -6.19168557343869,
   "start_distance_m": 924.0,
   "end_distance_m": 934.0,
   "midpoint_distance_m": 929.0,
   "start_elevation_m": 390.4063217776676,
   "end_elevation_m": 389.7871532203237,
   "start_xy": [
    1897513.6981792003,
    5770855.567798642
   ],
   "end_xy": [
    1897508.439574277,
    5770847.062090308
   ]
  },
  "min_20m": {
   "gradient_pct": -4.934802937501672,
   "start_distance_m": 924.0,
   "end_distance_m": 944.0,
   "midpoint_distance_m": 934.0,
   "start_elevation_m": 390.4063217776676,
   "end_elevation_m": 389.41936119016725,
   "start_xy": [
    1897513.6981792003,
    5770855.567798642
   ],
   "end_xy": [
    1897504.1567789302,
    5770838.120928753
   ]
  },
  "min_25m": {
   "gradient_pct": -4.553755709847792,
   "start_distance_m": 925.0,
   "end_distance_m": 950.0,
   "midpoint_distance_m": 937.5,
   "start_elevation_m": 390.35619299857944,
   "end_elevation_m": 389.2177540711175,
   "start_xy": [
    1897513.172318708,
    5770854.717227809
   ],
   "end_xy": [
    1897502.4656166227,
    5770832.364196169
   ]
  },
  "min_50m": {
   "gradient_pct": -2.378094669945199,
   "start_distance_m": 900.0,
   "end_distance_m": 950.0,
   "midpoint_distance_m": 925.0,
   "start_elevation_m": 390.4068014060901,
   "end_elevation_m": 389.2177540711175,
   "start_xy": [
    1897515.7049687055,
    5770877.927600813
   ],
   "end_xy": [
    1897502.4656166227,
    5770832.364196169
   ]
  },
  "min_100m": {
   "gradient_pct": -1.2230062113725921,
   "start_distance_m": 867.0,
   "end_distance_m": 967.0,
   "midpoint_distance_m": 917.0,
   "start_elevation_m": 390.3981994073057,
   "end_elevation_m": 389.1751931959331,
   "start_xy": [
    1897486.0108547357,
    5770880.187679269
   ],
   "end_xy": [
    1897498.5821315,
    5770815.860118878
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 45.300832546547554,
   "start_distance_m": 421.0,
   "end_distance_m": 423.0,
   "midpoint_distance_m": 422.0,
   "start_elevation_m": 336.0227799298333,
   "end_elevation_m": 336.92879658076424,
   "start_xy": [
    1897457.2417896478,
    5770709.1135988105
   ],
   "end_xy": [
    1897456.993349228,
    5770711.09810816
   ]
  },
  "max_3m": {
   "gradient_pct": 40.62182262410564,
   "start_distance_m": 420.0,
   "end_distance_m": 423.0,
   "midpoint_distance_m": 421.5,
   "start_elevation_m": 335.7101419020411,
   "end_elevation_m": 336.92879658076424,
   "start_xy": [
    1897457.3660098575,
    5770708.121344136
   ],
   "end_xy": [
    1897456.993349228,
    5770711.09810816
   ]
  }
 },
 "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": 0.055,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.063,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    50.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 5.0,
     "start_m": 392.0,
     "end_m": 397.0,
     "raw_pct": 40.75,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": [],
   "unstable": [
    {
     "window_m": 5.0,
     "start_m": 420.0,
     "end_m": 425.0,
     "raw_pct": 32.57,
     "reason": "mask-edge",
     "perturbations": [
      "phase+0.000/mask+0",
      "phase+0.333/mask+1",
      "phase+0.667/mask-1"
     ],
     "perturbation_reasons": [
      "",
      "mask-edge",
      ""
     ]
    }
   ]
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.34,
   "obstruction_max_height_m": 16.12,
   "flagged_windows_m": [
    2,
    3,
    5,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    390.0,
    414.0
   ],
   [
    481.0,
    487.0
   ],
   [
    498.0,
    526.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "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": "2026-09-28T06:23:04+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"
  ],
  "route_cut_m": 967.6,
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 3,
  "suppression_unstable": [
   5.0
  ],
  "carriageway": {
   "stations": 44,
   "stations_resolved": 44,
   "width_median_m": 5.38,
   "width_p10_m": 3.5,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.205,
   "unbounded_share": 0.795,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.75,
   "window_m": [
    360.0,
    385.0
   ],
   "width_at_max25_m": 4.38,
   "window_stations": 6,
   "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": 44,
    "stations_resolved": 44,
    "width_median_m": 4.0,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.773,
    "unbounded_share": 0.227,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.62,
    "window_m": [
     360.0,
     385.0
    ],
    "width_at_max25_m": 2.0,
    "window_stations": 6,
    "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)"
 }
}