{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-36.8304, 175.0915)",
 "slug": "discovered-lane-36-8304-175-0915",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.584476518743628,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 472.0,
   "end_distance_m": 474.0,
   "start_elevation_m": 80.72528978851078,
   "end_elevation_m": 81.27697931888565,
   "min_gradient_pct": -17.828683144496438
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.328592039744137,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 471.0,
   "end_distance_m": 474.0,
   "start_elevation_m": 80.45712155769333,
   "end_elevation_m": 81.27697931888565,
   "min_gradient_pct": -17.569795159829482
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.619973902273273,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 471.0,
   "end_distance_m": 476.0,
   "start_elevation_m": 80.45712155769333,
   "end_elevation_m": 81.78812025280699,
   "min_gradient_pct": -17.35958574368965
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.343780799975093,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 466.0,
   "end_distance_m": 476.0,
   "start_elevation_m": 79.25374217280948,
   "end_elevation_m": 81.78812025280699,
   "min_gradient_pct": -16.324421476266764
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 25.02551335672493,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 457.0,
   "end_distance_m": 477.0,
   "start_elevation_m": 77.02310741974846,
   "end_elevation_m": 82.02821009109344,
   "min_gradient_pct": -14.849007759573709
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.54492990371125,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 454.0,
   "end_distance_m": 479.0,
   "start_elevation_m": 76.33365076539175,
   "end_elevation_m": 82.46988324131956,
   "min_gradient_pct": -14.285932788145828
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 24.072931702195504,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 312.0,
   "end_distance_m": 362.0,
   "start_elevation_m": 50.21262255608156,
   "end_elevation_m": 62.249088407179315,
   "min_gradient_pct": -12.351911491507849
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 22.42497208668069,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 263.0,
   "end_distance_m": 363.0,
   "start_elevation_m": 40.05818475771836,
   "end_elevation_m": 62.48315684439905,
   "min_gradient_pct": -10.91855748103828
  }
 ],
 "shape": {
  "ascent_concentration": 0.491,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 316.0,
  "shape_class": "stepped"
 },
 "length_m": 1209.8261288199021,
 "start_elevation_m": 3.399616564682998,
 "end_elevation_m": 107.10120077254629,
 "endpoint_gain_m": 103.70158420786329,
 "overall_gradient_pct": 8.571610559363327,
 "accumulated_ascent_m": 120.72341481627372,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.619973902273273,
   "start_distance_m": 471.0,
   "end_distance_m": 476.0,
   "midpoint_distance_m": 473.5,
   "start_elevation_m": 80.45712155769333,
   "end_elevation_m": 81.78812025280699,
   "start_xy": [
    1786635.3956309333,
    5922051.883955992
   ],
   "end_xy": [
    1786630.536255891,
    5922053.061442381
   ]
  },
  "max_10m": {
   "gradient_pct": 25.343780799975093,
   "start_distance_m": 466.0,
   "end_distance_m": 476.0,
   "midpoint_distance_m": 471.0,
   "start_elevation_m": 79.25374217280948,
   "end_elevation_m": 81.78812025280699,
   "start_xy": [
    1786640.2550059755,
    5922050.706469602
   ],
   "end_xy": [
    1786630.536255891,
    5922053.061442381
   ]
  },
  "max_20m": {
   "gradient_pct": 25.02551335672493,
   "start_distance_m": 457.0,
   "end_distance_m": 477.0,
   "midpoint_distance_m": 467.0,
   "start_elevation_m": 77.02310741974846,
   "end_elevation_m": 82.02821009109344,
   "start_xy": [
    1786649.23358388,
    5922050.196100786
   ],
   "end_xy": [
    1786629.5704210326,
    5922053.317993938
   ]
  },
  "max_25m": {
   "gradient_pct": 24.54492990371125,
   "start_distance_m": 454.0,
   "end_distance_m": 479.0,
   "midpoint_distance_m": 466.5,
   "start_elevation_m": 76.33365076539175,
   "end_elevation_m": 82.46988324131956,
   "start_xy": [
    1786652.2300862167,
    5922050.051277638
   ],
   "end_xy": [
    1786627.6726008435,
    5922053.94908706
   ]
  },
  "max_50m": {
   "gradient_pct": 24.072931702195504,
   "start_distance_m": 312.0,
   "end_distance_m": 362.0,
   "midpoint_distance_m": 337.0,
   "start_elevation_m": 50.21262255608156,
   "end_elevation_m": 62.249088407179315,
   "start_xy": [
    1786698.6558558976,
    5921990.736965409
   ],
   "end_xy": [
    1786730.206621686,
    5922029.39229726
   ]
  },
  "max_100m": {
   "gradient_pct": 22.42497208668069,
   "start_distance_m": 263.0,
   "end_distance_m": 363.0,
   "midpoint_distance_m": 313.0,
   "start_elevation_m": 40.05818475771836,
   "end_elevation_m": 62.48315684439905,
   "start_xy": [
    1786678.5422345803,
    5921947.367354423
   ],
   "end_xy": [
    1786730.6990387593,
    5922030.262656626
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -17.35958574368965,
   "start_distance_m": 663.0,
   "end_distance_m": 668.0,
   "midpoint_distance_m": 665.5,
   "start_elevation_m": 80.10901758445523,
   "end_elevation_m": 79.24103829727075,
   "start_xy": [
    1786491.6798356378,
    5922154.060526167
   ],
   "end_xy": [
    1786487.5418233178,
    5922151.253952805
   ]
  },
  "min_10m": {
   "gradient_pct": -16.324421476266764,
   "start_distance_m": 661.0,
   "end_distance_m": 671.0,
   "midpoint_distance_m": 666.0,
   "start_elevation_m": 80.43100086419196,
   "end_elevation_m": 78.79855871656528,
   "start_xy": [
    1786493.4369240745,
    5922154.953902509
   ],
   "end_xy": [
    1786485.790374978,
    5922148.907270884
   ]
  },
  "min_20m": {
   "gradient_pct": -14.849007759573709,
   "start_distance_m": 655.0,
   "end_distance_m": 675.0,
   "midpoint_distance_m": 665.0,
   "start_elevation_m": 81.21334297740302,
   "end_elevation_m": 78.24354142548827,
   "start_xy": [
    1786499.2614416394,
    5922155.357704851
   ],
   "end_xy": [
    1786483.8810765394,
    5922145.39236271
   ]
  },
  "min_25m": {
   "gradient_pct": -14.285932788145828,
   "start_distance_m": 650.0,
   "end_distance_m": 675.0,
   "midpoint_distance_m": 662.5,
   "start_elevation_m": 81.81502462252473,
   "end_elevation_m": 78.24354142548827,
   "start_xy": [
    1786504.0875910986,
    5922154.090904584
   ],
   "end_xy": [
    1786483.8810765394,
    5922145.39236271
   ]
  },
  "min_50m": {
   "gradient_pct": -12.351911491507849,
   "start_distance_m": 622.0,
   "end_distance_m": 672.0,
   "midpoint_distance_m": 647.0,
   "start_elevation_m": 84.82455143088157,
   "end_elevation_m": 78.64859568512765,
   "start_xy": [
    1786524.6913255595,
    5922135.216271273
   ],
   "end_xy": [
    1786485.3130503683,
    5922148.02854384
   ]
  },
  "min_100m": {
   "gradient_pct": -10.91855748103828,
   "start_distance_m": 581.0,
   "end_distance_m": 681.0,
   "midpoint_distance_m": 631.0,
   "start_elevation_m": 88.72869918961737,
   "end_elevation_m": 77.8101417085791,
   "start_xy": [
    1786549.017719397,
    5922102.767547933
   ],
   "end_xy": [
    1786483.6974558022,
    5922140.798007507
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.584476518743628,
   "start_distance_m": 472.0,
   "end_distance_m": 474.0,
   "midpoint_distance_m": 473.0,
   "start_elevation_m": 80.72528978851078,
   "end_elevation_m": 81.27697931888565,
   "start_xy": [
    1786634.423755925,
    5922052.119453269
   ],
   "end_xy": [
    1786632.4800059078,
    5922052.590447825
   ]
  },
  "max_3m": {
   "gradient_pct": 27.328592039744137,
   "start_distance_m": 471.0,
   "end_distance_m": 474.0,
   "midpoint_distance_m": 472.5,
   "start_elevation_m": 80.45712155769333,
   "end_elevation_m": 81.27697931888565,
   "start_xy": [
    1786635.3956309333,
    5922051.883955992
   ],
   "end_xy": [
    1786632.4800059078,
    5922052.590447825
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.002,
   "obstruction_max_height_m": 5.2,
   "flagged_windows_m": []
  },
  "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-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/BA33.tiff"
  ],
  "calculated_at": "2026-09-28T05:15:16+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": [
   "BA33"
  ],
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 2,
  "carriageway": {
   "stations": 55,
   "stations_resolved": 55,
   "width_median_m": 4.25,
   "width_p10_m": 3.25,
   "width_min_m": 2.75,
   "width_max_m": 11.0,
   "bounded_share": 0.309,
   "unbounded_share": 0.691,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.25,
   "window_m": [
    454.0,
    479.0
   ],
   "width_at_max25_m": 4.0,
   "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": 55,
    "stations_resolved": 55,
    "width_median_m": 7.25,
    "width_p10_m": 3.55,
    "width_min_m": 1.25,
    "width_max_m": 12.0,
    "bounded_share": 0.727,
    "unbounded_share": 0.273,
    "confidence_median": 1.0,
    "width_median_bounded_m": 6.12,
    "window_m": [
     454.0,
     479.0
    ],
    "width_at_max25_m": 7.25,
    "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": "Waiheke",
  "county": "Auckland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}