{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-40.9203, 175.0255)",
 "slug": "discovered-lane-40-9203-175-0255",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.555512511924803,
   "diagnostic": true,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1926.0,
   "end_distance_m": 1928.0,
   "start_elevation_m": 146.90555247108068,
   "end_elevation_m": 147.37666272131918,
   "min_gradient_pct": -19.137007871366762,
   "suppressed_max_gradient_pct": 32.860161717241,
   "suppressed_location_m": [
    1832.0,
    1834.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.365630439217473,
   "diagnostic": true,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1868.0,
   "end_distance_m": 1871.0,
   "start_elevation_m": 135.88335607157637,
   "end_elevation_m": 136.5843249847529,
   "min_gradient_pct": -16.54371645892212,
   "suppressed_max_gradient_pct": 30.94255372937103,
   "suppressed_location_m": [
    1832.0,
    1835.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.661123136491597,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1868.0,
   "end_distance_m": 1873.0,
   "start_elevation_m": 135.88335607157637,
   "end_elevation_m": 137.01641222840095,
   "min_gradient_pct": -15.290019997847821,
   "suppressed_max_gradient_pct": 28.372480966003195,
   "suppressed_location_m": [
    1830.0,
    1835.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.731830725391035,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1868.0,
   "end_distance_m": 1878.0,
   "start_elevation_m": 135.88335607157637,
   "end_elevation_m": 138.05653914411548,
   "min_gradient_pct": -12.720084654704209,
   "suppressed_max_gradient_pct": 27.387805893401094,
   "suppressed_location_m": [
    1829.0,
    1839.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.97569926430694,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1864.0,
   "end_distance_m": 1884.0,
   "start_elevation_m": 135.12192043816538,
   "end_elevation_m": 139.31706029102676,
   "min_gradient_pct": -11.77456321097246,
   "suppressed_max_gradient_pct": 22.728262786736906,
   "suppressed_location_m": [
    1829.0,
    1849.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.611919535066136,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1860.0,
   "end_distance_m": 1885.0,
   "start_elevation_m": 134.34935155774053,
   "end_elevation_m": 139.50233144150707,
   "min_gradient_pct": -11.451965853750039,
   "suppressed_max_gradient_pct": 21.725023428591385,
   "suppressed_location_m": [
    1829.0,
    1854.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.448437210311454,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1843.0,
   "end_distance_m": 1893.0,
   "start_elevation_m": 131.2421835265183,
   "end_elevation_m": 140.96640213167402,
   "min_gradient_pct": -10.565279879320174,
   "suppressed_max_gradient_pct": 20.940573264917422,
   "suppressed_location_m": [
    1829.0,
    1879.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.450231570713925,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1842.0,
   "end_distance_m": 1942.0,
   "start_elevation_m": 131.05347935039543,
   "end_elevation_m": 149.50371092110936,
   "min_gradient_pct": -10.0018683606272,
   "suppressed_max_gradient_pct": 19.744319084479855,
   "suppressed_location_m": [
    1829.0,
    1929.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.354,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 476.0,
  "shape_class": "sustained"
 },
 "length_m": 2035.0184969906986,
 "start_elevation_m": 13.678249527598542,
 "end_elevation_m": 158.30597474118434,
 "endpoint_gain_m": 144.6277252135858,
 "overall_gradient_pct": 7.106948925892089,
 "accumulated_ascent_m": 170.91272090793825,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.661123136491597,
   "start_distance_m": 1868.0,
   "end_distance_m": 1873.0,
   "midpoint_distance_m": 1870.5,
   "start_elevation_m": 135.88335607157637,
   "end_elevation_m": 137.01641222840095,
   "start_xy": [
    1770602.6719320754,
    5468107.602601444
   ],
   "end_xy": [
    1770599.2686700672,
    5468103.972258327
   ]
  },
  "max_10m": {
   "gradient_pct": 21.731830725391035,
   "start_distance_m": 1868.0,
   "end_distance_m": 1878.0,
   "midpoint_distance_m": 1873.0,
   "start_elevation_m": 135.88335607157637,
   "end_elevation_m": 138.05653914411548,
   "start_xy": [
    1770602.6719320754,
    5468107.602601444
   ],
   "end_xy": [
    1770596.4923285875,
    5468099.831982789
   ]
  },
  "max_20m": {
   "gradient_pct": 20.97569926430694,
   "start_distance_m": 1864.0,
   "end_distance_m": 1884.0,
   "midpoint_distance_m": 1874.0,
   "start_elevation_m": 135.12192043816538,
   "end_elevation_m": 139.31706029102676,
   "start_xy": [
    1770605.7191283074,
    5468110.193855026
   ],
   "end_xy": [
    1770593.5458077234,
    5468094.605318958
   ]
  },
  "max_25m": {
   "gradient_pct": 20.611919535066136,
   "start_distance_m": 1860.0,
   "end_distance_m": 1885.0,
   "midpoint_distance_m": 1872.5,
   "start_elevation_m": 134.34935155774053,
   "end_elevation_m": 139.50233144150707,
   "start_xy": [
    1770609.1615068042,
    5468112.219203789
   ],
   "end_xy": [
    1770593.0547209128,
    5468093.734208319
   ]
  },
  "max_50m": {
   "gradient_pct": 19.448437210311454,
   "start_distance_m": 1843.0,
   "end_distance_m": 1893.0,
   "midpoint_distance_m": 1868.0,
   "start_elevation_m": 131.2421835265183,
   "end_elevation_m": 140.96640213167402,
   "start_xy": [
    1770623.5877316005,
    5468121.170036439
   ],
   "end_xy": [
    1770587.3068472713,
    5468088.439800972
   ]
  },
  "max_100m": {
   "gradient_pct": 18.450231570713925,
   "start_distance_m": 1842.0,
   "end_distance_m": 1942.0,
   "midpoint_distance_m": 1892.0,
   "start_elevation_m": 131.05347935039543,
   "end_elevation_m": 149.50371092110936,
   "start_xy": [
    1770624.4014177278,
    5468121.751340908
   ],
   "end_xy": [
    1770555.3775542742,
    5468116.069559986
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -15.290019997847821,
   "start_distance_m": 1051.0,
   "end_distance_m": 1056.0,
   "midpoint_distance_m": 1053.5,
   "start_elevation_m": 105.84745820492009,
   "end_elevation_m": 105.0829572050277,
   "start_xy": [
    1770488.2627506189,
    5468558.501624708
   ],
   "end_xy": [
    1770492.2895844074,
    5468561.465508924
   ]
  },
  "min_10m": {
   "gradient_pct": -12.720084654704209,
   "start_distance_m": 1047.0,
   "end_distance_m": 1057.0,
   "midpoint_distance_m": 1052.0,
   "start_elevation_m": 106.23249289932147,
   "end_elevation_m": 104.96048443385105,
   "start_xy": [
    1770485.0412835882,
    5468556.130517337
   ],
   "end_xy": [
    1770493.0949511651,
    5468562.058285766
   ]
  },
  "min_20m": {
   "gradient_pct": -11.77456321097246,
   "start_distance_m": 1037.0,
   "end_distance_m": 1057.0,
   "midpoint_distance_m": 1047.0,
   "start_elevation_m": 107.31539707604554,
   "end_elevation_m": 104.96048443385105,
   "start_xy": [
    1770476.9876160112,
    5468550.202748907
   ],
   "end_xy": [
    1770493.0949511651,
    5468562.058285766
   ]
  },
  "min_25m": {
   "gradient_pct": -11.451965853750039,
   "start_distance_m": 1032.0,
   "end_distance_m": 1057.0,
   "midpoint_distance_m": 1044.5,
   "start_elevation_m": 107.82347589728856,
   "end_elevation_m": 104.96048443385105,
   "start_xy": [
    1770472.9607822227,
    5468547.238864692
   ],
   "end_xy": [
    1770493.0949511651,
    5468562.058285766
   ]
  },
  "min_50m": {
   "gradient_pct": -10.565279879320174,
   "start_distance_m": 1007.0,
   "end_distance_m": 1057.0,
   "midpoint_distance_m": 1032.0,
   "start_elevation_m": 110.24312437351114,
   "end_elevation_m": 104.96048443385105,
   "start_xy": [
    1770451.3851405643,
    5468534.644231811
   ],
   "end_xy": [
    1770493.0949511651,
    5468562.058285766
   ]
  },
  "min_100m": {
   "gradient_pct": -10.0018683606272,
   "start_distance_m": 1019.0,
   "end_distance_m": 1119.0,
   "midpoint_distance_m": 1069.0,
   "start_elevation_m": 109.16510433706425,
   "end_elevation_m": 99.16323597643705,
   "start_xy": [
    1770461.722737548,
    5468540.729081313
   ],
   "end_xy": [
    1770543.0276901424,
    5468598.810450032
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.555512511924803,
   "start_distance_m": 1926.0,
   "end_distance_m": 1928.0,
   "midpoint_distance_m": 1927.0,
   "start_elevation_m": 146.90555247108068,
   "end_elevation_m": 147.37666272131918,
   "start_xy": [
    1770560.2143376127,
    5468100.992485863
   ],
   "end_xy": [
    1770559.1149377692,
    5468102.663210252
   ]
  },
  "max_3m": {
   "gradient_pct": 23.365630439217473,
   "start_distance_m": 1868.0,
   "end_distance_m": 1871.0,
   "midpoint_distance_m": 1869.5,
   "start_elevation_m": 135.88335607157637,
   "end_elevation_m": 136.5843249847529,
   "start_xy": [
    1770602.6719320754,
    5468107.602601444
   ],
   "end_xy": [
    1770600.5081889066,
    5468105.541842044
   ]
  }
 },
 "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": 0.015,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.221,
   "obstruction_max_height_m": 21.59,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    1810.0,
    1840.0
   ]
  ],
  "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-n3",
   "road_pbf": "block-batch-nz-n3.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": "sha256:7959a7d1d462b1b3"
  },
  "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/BP32.tiff"
  ],
  "calculated_at": "2026-09-28T05:15:04+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-nz-n3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "nz-n3",
  "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": [
   "BP32"
  ],
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 6,
  "carriageway": {
   "stations": 87,
   "stations_resolved": 87,
   "width_median_m": 6.5,
   "width_p10_m": 3.9,
   "width_min_m": 2.5,
   "width_max_m": 12.0,
   "bounded_share": 0.092,
   "unbounded_share": 0.908,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.88,
   "window_m": [
    1860.0,
    1885.0
   ],
   "width_at_max25_m": 3.75,
   "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": 87,
    "stations_resolved": 87,
    "width_median_m": 8.0,
    "width_p10_m": 1.25,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.575,
    "unbounded_share": 0.425,
    "confidence_median": 0.96,
    "width_median_bounded_m": 3.75,
    "window_m": [
     1860.0,
     1885.0
    ],
    "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": "Wellington",
  "county": "Wellington",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}