{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-35.6650, 174.2996)",
 "slug": "discovered-lane-35-6650-174-2996",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.76222721542672,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 103.0,
   "end_distance_m": 105.0,
   "start_elevation_m": 106.92752668165059,
   "end_elevation_m": 107.56277122595912,
   "min_gradient_pct": -0.6012489230556639
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.92793645480422,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 102.0,
   "end_distance_m": 105.0,
   "start_elevation_m": 106.634933132315,
   "end_elevation_m": 107.56277122595912,
   "min_gradient_pct": 0.1488426200429179
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.706922099438827,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 100.0,
   "end_distance_m": 105.0,
   "start_elevation_m": 106.12742512098718,
   "end_elevation_m": 107.56277122595912,
   "min_gradient_pct": 0.20414702646235128
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.62434119757785,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 97.0,
   "end_distance_m": 107.0,
   "start_elevation_m": 105.26482407681809,
   "end_elevation_m": 108.02725819657587,
   "min_gradient_pct": 1.6971712739027112
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 25.971858322742424,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 90.0,
   "end_distance_m": 110.0,
   "start_elevation_m": 103.59070505008043,
   "end_elevation_m": 108.78507671462891,
   "min_gradient_pct": 4.074495386285406,
   "suppressed_min_gradient_pct": 3.675299954624194,
   "suppressed_min_location_m": [
    18.0,
    38.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 25.587470377195018,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 97.0,
   "end_distance_m": 122.0,
   "start_elevation_m": 105.26482407681809,
   "end_elevation_m": 111.66169167111684,
   "min_gradient_pct": 4.643336218782565,
   "suppressed_min_gradient_pct": 3.796153228761284,
   "suppressed_min_location_m": [
    3.0,
    28.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 24.45338175550299,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 81.0,
   "end_distance_m": 131.0,
   "start_elevation_m": 101.66968013936541,
   "end_elevation_m": 113.8963710171169,
   "min_gradient_pct": 7.4827712874028975,
   "suppressed_min_gradient_pct": 4.586400773212091,
   "suppressed_min_location_m": [
    0.0,
    50.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.930237739269757,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 70.0,
   "end_distance_m": 170.0,
   "start_elevation_m": 99.91096465427512,
   "end_elevation_m": 119.84120239354488,
   "min_gradient_pct": 15.091452512360005,
   "suppressed_min_gradient_pct": 10.65785257165251,
   "suppressed_min_location_m": [
    0.0,
    100.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.379,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 207.0,
  "shape_class": "sustained"
 },
 "length_m": 270.9999999997317,
 "start_elevation_m": 95.46957254933467,
 "end_elevation_m": 136.27037652812365,
 "endpoint_gain_m": 40.80080397878898,
 "overall_gradient_pct": 15.055647224660284,
 "accumulated_ascent_m": 40.81622246093586,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.706922099438827,
   "start_distance_m": 100.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 102.5,
   "start_elevation_m": 106.12742512098718,
   "end_elevation_m": 107.56277122595912,
   "start_xy": [
    1717624.8288480463,
    6052316.943086554
   ],
   "end_xy": [
    1717629.3836200398,
    6052319.005621908
   ]
  },
  "max_10m": {
   "gradient_pct": 27.62434119757785,
   "start_distance_m": 97.0,
   "end_distance_m": 107.0,
   "midpoint_distance_m": 102.0,
   "start_elevation_m": 105.26482407681809,
   "end_elevation_m": 108.02725819657587,
   "start_xy": [
    1717622.09598485,
    6052315.705565342
   ],
   "end_xy": [
    1717631.2055288372,
    6052319.83063605
   ]
  },
  "max_20m": {
   "gradient_pct": 25.971858322742424,
   "start_distance_m": 90.0,
   "end_distance_m": 110.0,
   "midpoint_distance_m": 100.0,
   "start_elevation_m": 103.59070505008043,
   "end_elevation_m": 108.78507671462891,
   "start_xy": [
    1717615.7193040592,
    6052312.8180158455
   ],
   "end_xy": [
    1717632.552520443,
    6052322.340054123
   ]
  },
  "max_25m": {
   "gradient_pct": 25.587470377195018,
   "start_distance_m": 97.0,
   "end_distance_m": 122.0,
   "midpoint_distance_m": 109.5,
   "start_elevation_m": 105.26482407681809,
   "end_elevation_m": 111.66169167111684,
   "start_xy": [
    1717622.09598485,
    6052315.705565342
   ],
   "end_xy": [
    1717636.5485927546,
    6052333.655150502
   ]
  },
  "max_50m": {
   "gradient_pct": 24.45338175550299,
   "start_distance_m": 81.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 106.0,
   "start_elevation_m": 101.66968013936541,
   "end_elevation_m": 113.8963710171169,
   "start_xy": [
    1717607.5207144711,
    6052309.105452208
   ],
   "end_xy": [
    1717638.963953892,
    6052342.221053858
   ]
  },
  "max_100m": {
   "gradient_pct": 19.930237739269757,
   "start_distance_m": 70.0,
   "end_distance_m": 170.0,
   "midpoint_distance_m": 120.0,
   "start_elevation_m": 99.91096465427512,
   "end_elevation_m": 119.84120239354488,
   "start_xy": [
    1717597.125873536,
    6052305.764715211
   ],
   "end_xy": [
    1717632.6636358334,
    6052380.613425177
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.20414702646235128,
   "start_distance_m": 266.0,
   "end_distance_m": 271.0,
   "midpoint_distance_m": 268.5,
   "start_elevation_m": 136.26016917680053,
   "end_elevation_m": 136.27037652812365,
   "start_xy": [
    1717645.6430910353,
    6052468.487421115
   ],
   "end_xy": [
    1717649.9074029713,
    6052471.098099899
   ]
  },
  "min_10m": {
   "gradient_pct": 1.6971712739027112,
   "start_distance_m": 261.0,
   "end_distance_m": 271.0,
   "midpoint_distance_m": 266.0,
   "start_elevation_m": 136.10065940073338,
   "end_elevation_m": 136.27037652812365,
   "start_xy": [
    1717641.3787790993,
    6052465.876742331
   ],
   "end_xy": [
    1717649.9074029713,
    6052471.098099899
   ]
  },
  "min_20m": {
   "gradient_pct": 4.074495386285406,
   "start_distance_m": 21.0,
   "end_distance_m": 41.0,
   "midpoint_distance_m": 31.0,
   "start_elevation_m": 96.31497394303216,
   "end_elevation_m": 97.12987302028924,
   "start_xy": [
    1717549.2444628451,
    6052306.640935305
   ],
   "end_xy": [
    1717568.8707541868,
    6052303.365099799
   ]
  },
  "min_25m": {
   "gradient_pct": 4.643336218782565,
   "start_distance_m": 21.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 33.5,
   "start_elevation_m": 96.31497394303216,
   "end_elevation_m": 97.4758079977278,
   "start_xy": [
    1717549.2444628451,
    6052306.640935305
   ],
   "end_xy": [
    1717573.5281315262,
    6052301.546079095
   ]
  },
  "min_50m": {
   "gradient_pct": 7.4827712874028975,
   "start_distance_m": 21.0,
   "end_distance_m": 71.0,
   "midpoint_distance_m": 46.0,
   "start_elevation_m": 96.31497394303216,
   "end_elevation_m": 100.0563595867336,
   "start_xy": [
    1717549.2444628451,
    6052306.640935305
   ],
   "end_xy": [
    1717598.10952559,
    6052305.94479474
   ]
  },
  "min_100m": {
   "gradient_pct": 15.091452512360005,
   "start_distance_m": 21.0,
   "end_distance_m": 121.0,
   "midpoint_distance_m": 71.0,
   "start_elevation_m": 96.31497394303216,
   "end_elevation_m": 111.40642645539216,
   "start_xy": [
    1717549.2444628451,
    6052306.640935305
   ],
   "end_xy": [
    1717636.2155867286,
    6052332.712225804
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.76222721542672,
   "start_distance_m": 103.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 104.0,
   "start_elevation_m": 106.92752668165059,
   "end_elevation_m": 107.56277122595912,
   "start_xy": [
    1717627.5617112422,
    6052318.180607767
   ],
   "end_xy": [
    1717629.3836200398,
    6052319.005621908
   ]
  },
  "max_3m": {
   "gradient_pct": 30.92793645480422,
   "start_distance_m": 102.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 103.5,
   "start_elevation_m": 106.634933132315,
   "end_elevation_m": 107.56277122595912,
   "start_xy": [
    1717626.6507568436,
    6052317.768100696
   ],
   "end_xy": [
    1717629.3836200398,
    6052319.005621908
   ]
  }
 },
 "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": 0.077,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.224,
   "obstruction_max_height_m": 17.84,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "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-n1",
   "road_pbf": "block-batch-nz-n1.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:ff0dec6edae18a40"
  },
  "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/AX30.tiff"
  ],
  "calculated_at": "2026-09-28T05:23:17+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-nz-n1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "nz-n1",
  "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": [
   "AX30"
  ],
  "route_summit_trim_m": 126.9,
  "route_summit_trim_loss_m": 12.3,
  "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": 17,
   "stations_resolved": 17,
   "width_median_m": 6.75,
   "width_p10_m": 3.9,
   "width_min_m": 3.75,
   "width_max_m": 9.0,
   "bounded_share": 0.176,
   "unbounded_share": 0.824,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    97.0,
    122.0
   ],
   "width_at_max25_m": 7.5,
   "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": 5.5,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 11.25,
    "bounded_share": 0.824,
    "unbounded_share": 0.176,
    "confidence_median": 1.0,
    "width_median_bounded_m": 5.12,
    "window_m": [
     97.0,
     122.0
    ],
    "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": "Northland",
  "county": "Northland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}