{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-36.7484, 175.4857)",
 "slug": "discovered-lane-36-7484-175-4857",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.766189551417654,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 570.0,
   "end_distance_m": 572.0,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 35.64170080736088,
   "min_gradient_pct": -10.852684676801294
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.82984013560241,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 565.0,
   "end_distance_m": 568.0,
   "start_elevation_m": 34.04148413125083,
   "end_elevation_m": 34.786379335318905,
   "min_gradient_pct": -9.50191889290292
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.972110183804375,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 570.0,
   "end_distance_m": 575.0,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 36.21498252552274,
   "min_gradient_pct": -8.283314706524152
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.281628582194912,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 570.0,
   "end_distance_m": 580.0,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 37.294539874552015,
   "min_gradient_pct": -6.571991791074836
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.524408701429998,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 570.0,
   "end_distance_m": 590.0,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 39.37125875661852,
   "min_gradient_pct": -4.409533369165665
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.474376243595884,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 570.0,
   "end_distance_m": 595.0,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 40.434971077231495,
   "min_gradient_pct": -3.6416893643439874
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.488031596004888,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 565.0,
   "end_distance_m": 615.0,
   "start_elevation_m": 34.04148413125083,
   "end_elevation_m": 44.28549992925328,
   "min_gradient_pct": -1.9879103232908613
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.28418254480112,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 557.0,
   "end_distance_m": 657.0,
   "start_elevation_m": 32.69279866765985,
   "end_elevation_m": 50.97698121246097,
   "min_gradient_pct": -0.857477709794491
  }
 ],
 "shape": {
  "ascent_concentration": 0.444,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 175.0,
  "shape_class": "sustained"
 },
 "length_m": 881.000000000075,
 "start_elevation_m": 2.323307644358715,
 "end_elevation_m": 81.31920979230978,
 "endpoint_gain_m": 78.99590214795106,
 "overall_gradient_pct": 8.966617723943738,
 "accumulated_ascent_m": 80.49811505334634,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.972110183804375,
   "start_distance_m": 570.0,
   "end_distance_m": 575.0,
   "midpoint_distance_m": 572.5,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 36.21498252552274,
   "start_xy": [
    1821821.3536827886,
    5930057.340376119
   ],
   "end_xy": [
    1821826.0283414219,
    5930055.566237832
   ]
  },
  "max_10m": {
   "gradient_pct": 22.281628582194912,
   "start_distance_m": 570.0,
   "end_distance_m": 580.0,
   "midpoint_distance_m": 575.0,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 37.294539874552015,
   "start_xy": [
    1821821.3536827886,
    5930057.340376119
   ],
   "end_xy": [
    1821830.7030000554,
    5930053.792099545
   ]
  },
  "max_20m": {
   "gradient_pct": 21.524408701429998,
   "start_distance_m": 570.0,
   "end_distance_m": 590.0,
   "midpoint_distance_m": 580.0,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 39.37125875661852,
   "start_xy": [
    1821821.3536827886,
    5930057.340376119
   ],
   "end_xy": [
    1821840.052317322,
    5930050.243822971
   ]
  },
  "max_25m": {
   "gradient_pct": 21.474376243595884,
   "start_distance_m": 570.0,
   "end_distance_m": 595.0,
   "midpoint_distance_m": 582.5,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 40.434971077231495,
   "start_xy": [
    1821821.3536827886,
    5930057.340376119
   ],
   "end_xy": [
    1821844.7269759555,
    5930048.469684684
   ]
  },
  "max_50m": {
   "gradient_pct": 20.488031596004888,
   "start_distance_m": 565.0,
   "end_distance_m": 615.0,
   "midpoint_distance_m": 590.0,
   "start_elevation_m": 34.04148413125083,
   "end_elevation_m": 44.28549992925328,
   "start_xy": [
    1821816.6790241553,
    5930059.114514406
   ],
   "end_xy": [
    1821863.6729133907,
    5930042.527991485
   ]
  },
  "max_100m": {
   "gradient_pct": 18.28418254480112,
   "start_distance_m": 557.0,
   "end_distance_m": 657.0,
   "midpoint_distance_m": 607.0,
   "start_elevation_m": 32.69279866765985,
   "end_elevation_m": 50.97698121246097,
   "start_xy": [
    1821809.1995703417,
    5930061.9531356655
   ],
   "end_xy": [
    1821903.290391999,
    5930053.399364157
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.283314706524152,
   "start_distance_m": 5.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 7.5,
   "start_elevation_m": 2.4243329835956144,
   "end_elevation_m": 2.010167248269407,
   "start_xy": [
    1821598.3468018055,
    5929627.711348116
   ],
   "end_xy": [
    1821601.1836036108,
    5929631.828696233
   ]
  },
  "min_10m": {
   "gradient_pct": -6.571991791074836,
   "start_distance_m": 5.0,
   "end_distance_m": 15.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 2.4243329835956144,
   "end_elevation_m": 1.7671338044881308,
   "start_xy": [
    1821598.3468018055,
    5929627.711348116
   ],
   "end_xy": [
    1821604.0204054164,
    5929635.946044351
   ]
  },
  "min_20m": {
   "gradient_pct": -4.409533369165665,
   "start_distance_m": 3.0,
   "end_distance_m": 23.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 2.4595891163097576,
   "end_elevation_m": 1.5776824424766247,
   "start_xy": [
    1821597.2120810833,
    5929626.0644088695
   ],
   "end_xy": [
    1821608.5592883052,
    5929642.533801338
   ]
  },
  "min_25m": {
   "gradient_pct": -3.6416893643439874,
   "start_distance_m": 4.0,
   "end_distance_m": 29.0,
   "midpoint_distance_m": 16.5,
   "start_elevation_m": 2.463790409422028,
   "end_elevation_m": 1.5533680683360314,
   "start_xy": [
    1821597.7794414444,
    5929626.887878493
   ],
   "end_xy": [
    1821611.9634504716,
    5929647.474619078
   ]
  },
  "min_50m": {
   "gradient_pct": -1.9879103232908613,
   "start_distance_m": 4.0,
   "end_distance_m": 54.0,
   "midpoint_distance_m": 29.0,
   "start_elevation_m": 2.463790409422028,
   "end_elevation_m": 1.4698352477765975,
   "start_xy": [
    1821597.7794414444,
    5929626.887878493
   ],
   "end_xy": [
    1821626.147459499,
    5929668.0613596635
   ]
  },
  "min_100m": {
   "gradient_pct": -0.857477709794491,
   "start_distance_m": 4.0,
   "end_distance_m": 104.0,
   "midpoint_distance_m": 54.0,
   "start_elevation_m": 2.463790409422028,
   "end_elevation_m": 1.6063126996275372,
   "start_xy": [
    1821597.7794414444,
    5929626.887878493
   ],
   "end_xy": [
    1821654.5154775537,
    5929709.234840833
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.766189551417654,
   "start_distance_m": 570.0,
   "end_distance_m": 572.0,
   "midpoint_distance_m": 571.0,
   "start_elevation_m": 35.066377016332524,
   "end_elevation_m": 35.64170080736088,
   "start_xy": [
    1821821.3536827886,
    5930057.340376119
   ],
   "end_xy": [
    1821823.2235462419,
    5930056.630720804
   ]
  },
  "max_3m": {
   "gradient_pct": 24.82984013560241,
   "start_distance_m": 565.0,
   "end_distance_m": 568.0,
   "midpoint_distance_m": 566.5,
   "start_elevation_m": 34.04148413125083,
   "end_elevation_m": 34.786379335318905,
   "start_xy": [
    1821816.6790241553,
    5930059.114514406
   ],
   "end_xy": [
    1821819.4838193352,
    5930058.050031434
   ]
  }
 },
 "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": 0.17,
   "obstruction_max_height_m": 16.47,
   "flagged_windows_m": [
    50,
    100
   ]
  },
  "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-n4",
   "road_pbf": "block-batch-nz-n4.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": "sha256:390129777b339b3d"
  },
  "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/BA34.tiff"
  ],
  "calculated_at": "2026-09-28T06:02:30+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-nz-n4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "nz-n4",
  "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": [
   "BA34"
  ],
  "route_cut_m": 881.0,
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 2,
  "carriageway": {
   "stations": 41,
   "stations_resolved": 41,
   "width_median_m": 4.0,
   "width_p10_m": 2.5,
   "width_min_m": 2.0,
   "width_max_m": 12.0,
   "bounded_share": 0.146,
   "unbounded_share": 0.854,
   "confidence_median": 0.0,
   "width_median_bounded_m": 2.5,
   "window_m": [
    570.0,
    595.0
   ],
   "width_at_max25_m": 2.5,
   "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": 41,
    "stations_resolved": 41,
    "width_median_m": 5.25,
    "width_p10_m": 2.5,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.634,
    "unbounded_share": 0.366,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.38,
    "window_m": [
     570.0,
     595.0
    ],
    "width_at_max25_m": 3.88,
    "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": "Waikato",
  "county": "Waikato",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}