{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (-41.2566, 174.0634)",
 "slug": "discovered-lane-41-2566-174-0634",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 38.129487914742555,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 336.0,
   "end_distance_m": 338.0,
   "start_elevation_m": 93.63704179960425,
   "end_elevation_m": 94.3996315578991,
   "min_gradient_pct": -20.78892740658489,
   "suppressed_max_gradient_pct": 68.9325127823679,
   "suppressed_location_m": [
    341.0,
    343.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 31.018502149491194,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 241.0,
   "end_distance_m": 244.0,
   "start_elevation_m": 77.35087281226649,
   "end_elevation_m": 78.28142787675122,
   "min_gradient_pct": -10.97117282295462,
   "suppressed_max_gradient_pct": 57.18355207470154,
   "suppressed_location_m": [
    340.0,
    343.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.110273355044853,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 241.0,
   "end_distance_m": 246.0,
   "start_elevation_m": 77.35087281226649,
   "end_elevation_m": 78.80638648001873,
   "min_gradient_pct": -7.437502281900663,
   "suppressed_max_gradient_pct": 54.40678049852011,
   "suppressed_location_m": [
    284.0,
    289.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.175952967962406,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 125.0,
   "end_distance_m": 135.0,
   "start_elevation_m": 60.3023310123196,
   "end_elevation_m": 63.01992630911584,
   "min_gradient_pct": -3.021026133226883,
   "suppressed_max_gradient_pct": 38.494492621532714,
   "suppressed_location_m": [
    280.0,
    290.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.904157072684356,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 225.0,
   "end_distance_m": 245.0,
   "start_elevation_m": 74.20879050406577,
   "end_elevation_m": 78.58962191860265,
   "min_gradient_pct": 4.428638001406924,
   "suppressed_max_gradient_pct": 30.728580095778,
   "suppressed_location_m": [
    61.0,
    81.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.808477654796434,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 221.0,
   "end_distance_m": 246.0,
   "start_elevation_m": 73.35426706631962,
   "end_elevation_m": 78.80638648001873,
   "min_gradient_pct": 5.427273024361057,
   "suppressed_max_gradient_pct": 30.28003214012304,
   "suppressed_location_m": [
    73.0,
    98.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.589180979066498,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 217.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 72.60480140179817,
   "end_elevation_m": 81.89939189133142,
   "min_gradient_pct": 8.587810546532765,
   "suppressed_max_gradient_pct": 28.20277535834441,
   "suppressed_location_m": [
    58.0,
    108.0
   ],
   "suppressed_min_gradient_pct": 7.038516689972937,
   "suppressed_min_location_m": [
    144.0,
    194.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.334,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 83.0,
  "shape_class": "sustained"
 },
 "length_m": 350.6734295998314,
 "start_elevation_m": 39.146880464120045,
 "end_elevation_m": 97.82800049899382,
 "endpoint_gain_m": 58.68112003487377,
 "overall_gradient_pct": 16.733836978135848,
 "accumulated_ascent_m": 60.290924748848106,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.110273355044853,
   "start_distance_m": 241.0,
   "end_distance_m": 246.0,
   "midpoint_distance_m": 243.5,
   "start_elevation_m": 77.35087281226649,
   "end_elevation_m": 78.80638648001873,
   "start_xy": [
    1689085.1451973396,
    5432207.353332463
   ],
   "end_xy": [
    1689084.4305502921,
    5432202.440551613
   ]
  },
  "max_10m": {
   "gradient_pct": 27.175952967962406,
   "start_distance_m": 125.0,
   "end_distance_m": 135.0,
   "midpoint_distance_m": 130.0,
   "start_elevation_m": 60.3023310123196,
   "end_elevation_m": 63.01992630911584,
   "start_xy": [
    1689132.132763245,
    5432308.999534759
   ],
   "end_xy": [
    1689129.5162392836,
    5432299.347921226
   ]
  },
  "max_20m": {
   "gradient_pct": 21.904157072684356,
   "start_distance_m": 225.0,
   "end_distance_m": 245.0,
   "midpoint_distance_m": 235.0,
   "start_elevation_m": 74.20879050406577,
   "end_elevation_m": 78.58962191860265,
   "start_xy": [
    1689097.3856616751,
    5432217.575991096
   ],
   "end_xy": [
    1689084.4354952488,
    5432203.41679554
   ]
  },
  "max_25m": {
   "gradient_pct": 21.808477654796434,
   "start_distance_m": 221.0,
   "end_distance_m": 246.0,
   "midpoint_distance_m": 233.5,
   "start_elevation_m": 73.35426706631962,
   "end_elevation_m": 78.80638648001873,
   "start_xy": [
    1689100.570181097,
    5432219.99649436
   ],
   "end_xy": [
    1689084.4305502921,
    5432202.440551613
   ]
  },
  "max_50m": {
   "gradient_pct": 18.589180979066498,
   "start_distance_m": 217.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 242.0,
   "start_elevation_m": 72.60480140179817,
   "end_elevation_m": 81.89939189133142,
   "start_xy": [
    1689103.5887383497,
    5432222.620891281
   ],
   "end_xy": [
    1689093.6429056344,
    5432185.641030131
   ]
  },
  "max_100m": null
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.437502281900663,
   "start_distance_m": 163.0,
   "end_distance_m": 168.0,
   "midpoint_distance_m": 165.5,
   "start_elevation_m": 66.10674235149743,
   "end_elevation_m": 65.7348672374024,
   "start_xy": [
    1689121.9813522634,
    5432272.381893119
   ],
   "end_xy": [
    1689120.5827755763,
    5432267.581478215
   ]
  },
  "min_10m": {
   "gradient_pct": -3.021026133226883,
   "start_distance_m": 159.0,
   "end_distance_m": 169.0,
   "midpoint_distance_m": 164.0,
   "start_elevation_m": 66.06813236913536,
   "end_elevation_m": 65.76602975581267,
   "start_xy": [
    1689123.1002136131,
    5432276.222225042
   ],
   "end_xy": [
    1689120.303060239,
    5432266.621395234
   ]
  },
  "min_20m": {
   "gradient_pct": 4.428638001406924,
   "start_distance_m": 149.0,
   "end_distance_m": 169.0,
   "midpoint_distance_m": 159.0,
   "start_elevation_m": 64.88030215553128,
   "end_elevation_m": 65.76602975581267,
   "start_xy": [
    1689125.8404728388,
    5432285.839081859
   ],
   "end_xy": [
    1689120.303060239,
    5432266.621395234
   ]
  },
  "min_25m": {
   "gradient_pct": 5.427273024361057,
   "start_distance_m": 159.0,
   "end_distance_m": 184.0,
   "midpoint_distance_m": 171.5,
   "start_elevation_m": 66.06813236913536,
   "end_elevation_m": 67.42495062522562,
   "start_xy": [
    1689123.1002136131,
    5432276.222225042
   ],
   "end_xy": [
    1689116.8704724521,
    5432252.023903582
   ]
  },
  "min_50m": {
   "gradient_pct": 8.587810546532765,
   "start_distance_m": 137.0,
   "end_distance_m": 187.0,
   "midpoint_distance_m": 162.0,
   "start_elevation_m": 63.372112188982804,
   "end_elevation_m": 67.66601746224919,
   "start_xy": [
    1689128.9911297914,
    5432297.418087031
   ],
   "end_xy": [
    1689116.1501797976,
    5432249.112830333
   ]
  },
  "min_100m": null
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 38.129487914742555,
   "start_distance_m": 336.0,
   "end_distance_m": 338.0,
   "midpoint_distance_m": 337.0,
   "start_elevation_m": 93.63704179960425,
   "end_elevation_m": 94.3996315578991,
   "start_xy": [
    1689084.0177861291,
    5432136.309964954
   ],
   "end_xy": [
    1689083.7953826098,
    5432134.33448806
   ]
  },
  "max_3m": {
   "gradient_pct": 31.018502149491194,
   "start_distance_m": 241.0,
   "end_distance_m": 244.0,
   "midpoint_distance_m": 242.5,
   "start_elevation_m": 77.35087281226649,
   "end_elevation_m": 78.28142787675122,
   "start_xy": [
    1689085.1451973396,
    5432207.353332463
   ],
   "end_xy": [
    1689084.6129207716,
    5432204.40092977
   ]
  }
 },
 "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": 0.054,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    50.0,
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.248,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    50.0
   ],
   "windows_unresolved": [
    100.0
   ],
   "minima_resited": [
    50.0
   ],
   "minima_unresolved": [
    100.0
   ]
  },
  "texture_windows": {
   "rounds": 3,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 73.0,
     "end_m": 98.0,
     "raw_pct": 30.28,
     "reason": "mask-edge"
    },
    {
     "window_m": 25.0,
     "start_m": 45.0,
     "end_m": 70.0,
     "raw_pct": 22.2,
     "reason": "mask-edge"
    },
    {
     "window_m": 20.0,
     "start_m": 50.0,
     "end_m": 70.0,
     "raw_pct": 24.46,
     "reason": "mask-edge"
    },
    {
     "window_m": 5.0,
     "start_m": 194.0,
     "end_m": 199.0,
     "raw_pct": 32.02,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.438,
   "obstruction_max_height_m": 9.25,
   "flagged_windows_m": [
    2,
    10,
    20,
    25,
    50
   ]
  },
  "excluded_ranges_m": [
   [
    43.0,
    100.0
   ],
   [
    102.0,
    107.0
   ],
   [
    192.0,
    201.0
   ],
   [
    286.0,
    291.0
   ],
   [
    339.0,
    345.0
   ]
  ],
  "review": [
   "unresolved_windows"
  ],
  "extent": [
   "may_start_earlier",
   "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/BQ29.tiff"
  ],
  "calculated_at": "2026-09-28T05:12:14+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": [
   "BQ29"
  ],
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 21,
   "stations_resolved": 21,
   "width_median_m": 4.0,
   "width_p10_m": 2.75,
   "width_min_m": 2.25,
   "width_max_m": 8.75,
   "bounded_share": 0.19,
   "unbounded_share": 0.81,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.62,
   "window_m": [
    221.0,
    246.0
   ],
   "width_at_max25_m": 4.5,
   "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": 21,
    "stations_resolved": 21,
    "width_median_m": 2.25,
    "width_p10_m": 2.0,
    "width_min_m": 1.0,
    "width_max_m": 10.5,
    "bounded_share": 0.952,
    "unbounded_share": 0.048,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.25,
    "window_m": [
     221.0,
     246.0
    ],
    "width_at_max25_m": 2.25,
    "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": "Marlborough",
  "county": "Marlborough",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}