{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-38.0710, 176.3479)",
 "slug": "discovered-lane-38-0710-176-3479",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.3116502164213,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 185.0,
   "end_distance_m": 187.0,
   "start_elevation_m": 328.28536095192663,
   "end_elevation_m": 328.77159395625506,
   "min_gradient_pct": -2.480785008106068
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.715968619395273,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 201.0,
   "end_distance_m": 204.0,
   "start_elevation_m": 331.64164153158504,
   "end_elevation_m": 332.3531205901669,
   "min_gradient_pct": -2.1114650594540763
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.224565704091447,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 200.0,
   "end_distance_m": 205.0,
   "start_elevation_m": 331.41352940209947,
   "end_elevation_m": 332.57475768730404,
   "min_gradient_pct": -1.4583347504844824
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.797393536579307,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 200.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 331.41352940209947,
   "end_elevation_m": 333.6932687557574,
   "min_gradient_pct": -0.5894262658193838
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.808378240145885,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 191.0,
   "end_distance_m": 211.0,
   "start_elevation_m": 329.5488600961068,
   "end_elevation_m": 333.910535744136,
   "min_gradient_pct": -0.1461623132843215
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.63163121532307,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 185.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 328.28536095192663,
   "end_elevation_m": 333.6932687557574,
   "min_gradient_pct": 0.19707430474568355
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.013949252121165,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 168.0,
   "end_distance_m": 218.0,
   "start_elevation_m": 325.22001019267645,
   "end_elevation_m": 335.22698481873704,
   "min_gradient_pct": 5.509276984337703
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.553909515121177,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 152.0,
   "end_distance_m": 252.0,
   "start_elevation_m": 322.6183298462985,
   "end_elevation_m": 341.17223936141966,
   "min_gradient_pct": 10.095398580195194
  }
 ],
 "shape": {
  "ascent_concentration": 0.376,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 205.0,
  "shape_class": "sustained"
 },
 "length_m": 288.298589507587,
 "start_elevation_m": 304.46611793577847,
 "end_elevation_m": 341.5729268493745,
 "endpoint_gain_m": 37.10680891359601,
 "overall_gradient_pct": 12.870964432040516,
 "accumulated_ascent_m": 37.27355108842016,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.224565704091447,
   "start_distance_m": 200.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 202.5,
   "start_elevation_m": 331.41352940209947,
   "end_elevation_m": 332.57475768730404,
   "start_xy": [
    1893670.2779843227,
    5781039.694828444
   ],
   "end_xy": [
    1893669.104023693,
    5781044.555056468
   ]
  },
  "max_10m": {
   "gradient_pct": 22.797393536579307,
   "start_distance_m": 200.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 205.0,
   "start_elevation_m": 331.41352940209947,
   "end_elevation_m": 333.6932687557574,
   "start_xy": [
    1893670.2779843227,
    5781039.694828444
   ],
   "end_xy": [
    1893670.152450935,
    5781049.335032437
   ]
  },
  "max_20m": {
   "gradient_pct": 21.808378240145885,
   "start_distance_m": 191.0,
   "end_distance_m": 211.0,
   "midpoint_distance_m": 201.0,
   "start_elevation_m": 329.5488600961068,
   "end_elevation_m": 333.910535744136,
   "start_xy": [
    1893675.692591797,
    5781032.569838183
   ],
   "end_xy": [
    1893670.4567426615,
    5781050.287611329
   ]
  },
  "max_25m": {
   "gradient_pct": 21.63163121532307,
   "start_distance_m": 185.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 197.5,
   "start_elevation_m": 328.28536095192663,
   "end_elevation_m": 333.6932687557574,
   "start_xy": [
    1893679.5692307744,
    5781027.990499797
   ],
   "end_xy": [
    1893670.152450935,
    5781049.335032437
   ]
  },
  "max_50m": {
   "gradient_pct": 20.013949252121165,
   "start_distance_m": 168.0,
   "end_distance_m": 218.0,
   "midpoint_distance_m": 193.0,
   "start_elevation_m": 325.22001019267645,
   "end_elevation_m": 335.22698481873704,
   "start_xy": [
    1893691.8580785482,
    5781016.331054997
   ],
   "end_xy": [
    1893676.1164509212,
    5781053.688389096
   ]
  },
  "max_100m": {
   "gradient_pct": 18.553909515121177,
   "start_distance_m": 152.0,
   "end_distance_m": 252.0,
   "midpoint_distance_m": 202.0,
   "start_elevation_m": 322.6183298462985,
   "end_elevation_m": 341.17223936141966,
   "start_xy": [
    1893704.0632069618,
    5781006.021061319
   ],
   "end_xy": [
    1893709.6341365245,
    5781057.094201203
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.4583347504844824,
   "start_distance_m": 272.0,
   "end_distance_m": 277.0,
   "midpoint_distance_m": 274.5,
   "start_elevation_m": 341.57955606518226,
   "end_elevation_m": 341.50663932765804,
   "start_xy": [
    1893723.7325809055,
    5781043.389767197
   ],
   "end_xy": [
    1893728.0501172321,
    5781040.909261174
   ]
  },
  "min_10m": {
   "gradient_pct": -0.5894262658193838,
   "start_distance_m": 270.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 275.0,
   "start_elevation_m": 341.5721748874907,
   "end_elevation_m": 341.51323226090875,
   "start_xy": [
    1893722.0400158467,
    5781044.455235884
   ],
   "end_xy": [
    1893730.9004418927,
    5781039.97349981
   ]
  },
  "min_20m": {
   "gradient_pct": -0.1461623132843215,
   "start_distance_m": 266.0,
   "end_distance_m": 286.0,
   "midpoint_distance_m": 276.0,
   "start_elevation_m": 341.53837767989114,
   "end_elevation_m": 341.5091452172343,
   "start_xy": [
    1893718.6548857293,
    5781046.586173257
   ],
   "end_xy": [
    1893736.601091214,
    5781038.101977084
   ]
  },
  "min_25m": {
   "gradient_pct": 0.19707430474568355,
   "start_distance_m": 261.0,
   "end_distance_m": 286.0,
   "midpoint_distance_m": 273.5,
   "start_elevation_m": 341.45987664104786,
   "end_elevation_m": 341.5091452172343,
   "start_xy": [
    1893714.9531361936,
    5781049.843685555
   ],
   "end_xy": [
    1893736.601091214,
    5781038.101977084
   ]
  },
  "min_50m": {
   "gradient_pct": 5.509276984337703,
   "start_distance_m": 238.0,
   "end_distance_m": 288.0,
   "midpoint_distance_m": 263.0,
   "start_elevation_m": 338.7930137793506,
   "end_elevation_m": 341.54765227151944,
   "start_xy": [
    1893695.8458478868,
    5781056.784262026
   ],
   "end_xy": [
    1893738.5013076542,
    5781037.478136174
   ]
  },
  "min_100m": {
   "gradient_pct": 10.095398580195194,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 304.46611793577847,
   "end_elevation_m": 314.56151651597366,
   "start_xy": [
    1893667.114,
    5780864.63
   ],
   "end_xy": [
    1893702.7843928647,
    5780957.463202968
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.3116502164213,
   "start_distance_m": 185.0,
   "end_distance_m": 187.0,
   "midpoint_distance_m": 186.0,
   "start_elevation_m": 328.28536095192663,
   "end_elevation_m": 328.77159395625506,
   "start_xy": [
    1893679.5692307744,
    5781027.990499797
   ],
   "end_xy": [
    1893678.2747817927,
    5781029.515098707
   ]
  },
  "max_3m": {
   "gradient_pct": 23.715968619395273,
   "start_distance_m": 201.0,
   "end_distance_m": 204.0,
   "midpoint_distance_m": 202.5,
   "start_elevation_m": 331.64164153158504,
   "end_elevation_m": 332.3531205901669,
   "start_xy": [
    1893670.0431921966,
    5781040.666874049
   ],
   "end_xy": [
    1893669.338815819,
    5781043.5830108635
   ]
  }
 },
 "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": 0.155,
   "obstruction_max_height_m": 15.6,
   "flagged_windows_m": []
  },
  "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": "2026-09-28T05:55:51+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,
  "carriageway": {
   "stations": 17,
   "stations_resolved": 17,
   "width_median_m": 5.75,
   "width_p10_m": 3.75,
   "width_min_m": 3.25,
   "width_max_m": 10.5,
   "bounded_share": 0.412,
   "unbounded_share": 0.588,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.25,
   "window_m": [
    185.0,
    210.0
   ],
   "width_at_max25_m": 5.0,
   "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": 17,
    "stations_resolved": 17,
    "width_median_m": 3.75,
    "width_p10_m": 1.15,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.706,
    "unbounded_share": 0.294,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.0,
    "window_m": [
     185.0,
     210.0
    ],
    "width_at_max25_m": 4.88,
    "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)"
 }
}