{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-35.0293, 173.5333)",
 "slug": "discovered-lane-35-0293-173-5333",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 42.734260993364614,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 355.0,
   "end_distance_m": 357.0,
   "start_elevation_m": 78.91256475178655,
   "end_elevation_m": 79.76724997165384,
   "min_gradient_pct": -24.643915426566743,
   "suppressed_max_gradient_pct": 56.45812327852813,
   "suppressed_location_m": [
    23.0,
    25.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.56645959224395,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 355.0,
   "end_distance_m": 358.0,
   "start_elevation_m": 78.91256475178655,
   "end_elevation_m": 80.03955853955387,
   "min_gradient_pct": -18.415293489166373,
   "suppressed_max_gradient_pct": 48.77253727312632,
   "suppressed_location_m": [
    24.0,
    27.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.82759878410735,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 355.0,
   "end_distance_m": 360.0,
   "start_elevation_m": 78.91256475178655,
   "end_elevation_m": 80.50394469099191,
   "min_gradient_pct": -11.371764872862045,
   "suppressed_max_gradient_pct": 40.23195781317675,
   "suppressed_location_m": [
    24.0,
    29.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.249419368796964,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 350.0,
   "end_distance_m": 360.0,
   "start_elevation_m": 77.67900275411222,
   "end_elevation_m": 80.50394469099191,
   "min_gradient_pct": -4.488359746914092,
   "suppressed_max_gradient_pct": 28.664102883027205,
   "suppressed_location_m": [
    22.0,
    32.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.699949286526873,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 351.0,
   "end_distance_m": 371.0,
   "start_elevation_m": 77.87820959743951,
   "end_elevation_m": 82.61819945474488,
   "min_gradient_pct": -2.2108415608115806
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.367340016110916,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 350.0,
   "end_distance_m": 375.0,
   "start_elevation_m": 77.67900275411222,
   "end_elevation_m": 83.52083775813995,
   "min_gradient_pct": 9.230089853021923,
   "suppressed_min_gradient_pct": 3.8659612108719443,
   "suppressed_min_location_m": [
    1.0,
    26.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.919497945232635,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min"
   ],
   "start_distance_m": 181.0,
   "end_distance_m": 231.0,
   "start_elevation_m": 44.67489818280467,
   "end_elevation_m": 55.134647155420986,
   "min_gradient_pct": 10.79798848213725,
   "suppressed_min_gradient_pct": 9.467712128675707,
   "suppressed_min_location_m": [
    0.0,
    50.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.615890233354754,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 189.0,
   "end_distance_m": 289.0,
   "start_elevation_m": 46.24035534804026,
   "end_elevation_m": 66.85624558139502,
   "min_gradient_pct": 13.587858598340453,
   "suppressed_min_gradient_pct": 11.401603231610654,
   "suppressed_min_location_m": [
    0.0,
    100.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.309,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 307.0,
  "shape_class": "sustained"
 },
 "length_m": 381.95234159728125,
 "start_elevation_m": 21.50431749882541,
 "end_elevation_m": 85.08443705779422,
 "endpoint_gain_m": 63.5801195589688,
 "overall_gradient_pct": 16.646087125185296,
 "accumulated_ascent_m": 64.3451357563516,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.82759878410735,
   "start_distance_m": 355.0,
   "end_distance_m": 360.0,
   "midpoint_distance_m": 357.5,
   "start_elevation_m": 78.91256475178655,
   "end_elevation_m": 80.50394469099191,
   "start_xy": [
    1648693.7330173415,
    6123416.106775733
   ],
   "end_xy": [
    1648691.3189789853,
    6123411.728143661
   ]
  },
  "max_10m": {
   "gradient_pct": 28.249419368796964,
   "start_distance_m": 350.0,
   "end_distance_m": 360.0,
   "midpoint_distance_m": 355.0,
   "start_elevation_m": 77.67900275411222,
   "end_elevation_m": 80.50394469099191,
   "start_xy": [
    1648696.1470556979,
    6123420.485407803
   ],
   "end_xy": [
    1648691.3189789853,
    6123411.728143661
   ]
  },
  "max_20m": {
   "gradient_pct": 23.699949286526873,
   "start_distance_m": 351.0,
   "end_distance_m": 371.0,
   "midpoint_distance_m": 361.0,
   "start_elevation_m": 77.87820959743951,
   "end_elevation_m": 82.61819945474488,
   "start_xy": [
    1648695.6642480264,
    6123419.609681389
   ],
   "end_xy": [
    1648684.7311518707,
    6123402.978491198
   ]
  },
  "max_25m": {
   "gradient_pct": 23.367340016110916,
   "start_distance_m": 350.0,
   "end_distance_m": 375.0,
   "midpoint_distance_m": 362.5,
   "start_elevation_m": 77.67900275411222,
   "end_elevation_m": 83.52083775813995,
   "start_xy": [
    1648696.1470556979,
    6123420.485407803
   ],
   "end_xy": [
    1648682.1239041288,
    6123399.946487873
   ]
  },
  "max_50m": {
   "gradient_pct": 20.919497945232635,
   "start_distance_m": 181.0,
   "end_distance_m": 231.0,
   "midpoint_distance_m": 206.0,
   "start_elevation_m": 44.67489818280467,
   "end_elevation_m": 55.134647155420986,
   "start_xy": [
    1648643.877195568,
    6123576.504949286
   ],
   "end_xy": [
    1648668.6472102404,
    6123533.840752499
   ]
  },
  "max_100m": {
   "gradient_pct": 20.615890233354754,
   "start_distance_m": 189.0,
   "end_distance_m": 289.0,
   "midpoint_distance_m": 239.0,
   "start_elevation_m": 46.24035534804026,
   "end_elevation_m": 66.85624558139502,
   "start_xy": [
    1648649.722199463,
    6123571.167841867
   ],
   "end_xy": [
    1648688.4778191787,
    6123479.336193524
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.371764872862045,
   "start_distance_m": 15.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 17.5,
   "start_elevation_m": 21.630737430306198,
   "end_elevation_m": 21.062149186663095,
   "start_xy": [
    1648590.750996498,
    6123643.280795451
   ],
   "end_xy": [
    1648586.4113286638,
    6123640.797393935
   ]
  },
  "min_10m": {
   "gradient_pct": -4.488359746914092,
   "start_distance_m": 10.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 15.0,
   "start_elevation_m": 21.510985161354505,
   "end_elevation_m": 21.062149186663095,
   "start_xy": [
    1648595.090664332,
    6123645.764196968
   ],
   "end_xy": [
    1648586.4113286638,
    6123640.797393935
   ]
  },
  "min_20m": {
   "gradient_pct": -2.2108415608115806,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 21.50431749882541,
   "end_elevation_m": 21.062149186663095,
   "start_xy": [
    1648603.77,
    6123650.731
   ],
   "end_xy": [
    1648586.4113286638,
    6123640.797393935
   ]
  },
  "min_25m": {
   "gradient_pct": 9.230089853021923,
   "start_distance_m": 55.0,
   "end_distance_m": 80.0,
   "midpoint_distance_m": 67.5,
   "start_elevation_m": 26.876740654304324,
   "end_elevation_m": 29.184263117559805,
   "start_xy": [
    1648561.1453491275,
    6123616.810732929
   ],
   "end_xy": [
    1648548.710025371,
    6123596.500288198
   ]
  },
  "min_50m": {
   "gradient_pct": 10.79798848213725,
   "start_distance_m": 32.0,
   "end_distance_m": 82.0,
   "midpoint_distance_m": 57.0,
   "start_elevation_m": 24.048647907827508,
   "end_elevation_m": 29.447642148896133,
   "start_xy": [
    1648577.2317738358,
    6123633.135746198
   ],
   "end_xy": [
    1648549.3526709904,
    6123594.606348756
   ]
  },
  "min_100m": {
   "gradient_pct": 13.587858598340453,
   "start_distance_m": 31.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 81.0,
   "start_elevation_m": 23.926550419742675,
   "end_elevation_m": 37.51440901808313,
   "start_xy": [
    1648577.9726367455,
    6123633.807402471
   ],
   "end_xy": [
    1648595.6558755115,
    6123588.850219745
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 42.734260993364614,
   "start_distance_m": 355.0,
   "end_distance_m": 357.0,
   "midpoint_distance_m": 356.0,
   "start_elevation_m": 78.91256475178655,
   "end_elevation_m": 79.76724997165384,
   "start_xy": [
    1648693.7330173415,
    6123416.106775733
   ],
   "end_xy": [
    1648692.767401999,
    6123414.355322904
   ]
  },
  "max_3m": {
   "gradient_pct": 37.56645959224395,
   "start_distance_m": 355.0,
   "end_distance_m": 358.0,
   "midpoint_distance_m": 356.5,
   "start_elevation_m": 78.91256475178655,
   "end_elevation_m": 80.03955853955387,
   "start_xy": [
    1648693.7330173415,
    6123416.106775733
   ],
   "end_xy": [
    1648692.284594328,
    6123413.47959649
   ]
  }
 },
 "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": 0.016,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    25.0,
    50.0,
    100.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.219,
   "obstruction_max_height_m": 16.64,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    22.0,
    27.0
   ]
  ],
  "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/AV27.tiff"
  ],
  "calculated_at": "2026-09-28T05:16:44+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": [
   "AV27"
  ],
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 20,
   "stations_resolved": 20,
   "width_median_m": 3.62,
   "width_p10_m": 1.48,
   "width_min_m": 1.25,
   "width_max_m": 7.75,
   "bounded_share": 0.5,
   "unbounded_share": 0.5,
   "confidence_median": 0.252,
   "width_median_bounded_m": 3.38,
   "window_m": [
    350.0,
    375.0
   ],
   "width_at_max25_m": 2.38,
   "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": 20,
    "stations_resolved": 20,
    "width_median_m": 3.5,
    "width_p10_m": 0.73,
    "width_min_m": 0.5,
    "width_max_m": 10.0,
    "bounded_share": 0.85,
    "unbounded_share": 0.15,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.0,
    "window_m": [
     350.0,
     375.0
    ],
    "width_at_max25_m": 1.75,
    "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": "Te Hiku Community",
  "county": "Northland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}