{
 "ocl_version": "0.1.0",
 "name": "Inglis Street",
 "slug": "inglis-street",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.560959034175326,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 25.0,
   "end_distance_m": 27.0,
   "start_elevation_m": 36.413674355961305,
   "end_elevation_m": 36.98489353664481,
   "min_gradient_pct": -1.3320423000713788
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.55290736032643,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 25.0,
   "end_distance_m": 28.0,
   "start_elevation_m": 36.413674355961305,
   "end_elevation_m": 37.2702615767711,
   "min_gradient_pct": -0.7405872448103423
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.21161784942376,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 24.0,
   "end_distance_m": 29.0,
   "start_elevation_m": 36.13724550296584,
   "end_elevation_m": 37.54782639543703,
   "min_gradient_pct": 0.44810558442009096
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.784439834725344,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 19.0,
   "end_distance_m": 29.0,
   "start_elevation_m": 34.76938241196449,
   "end_elevation_m": 37.54782639543703,
   "min_gradient_pct": 4.064359130845361
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 27.108578022032862,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 17.0,
   "end_distance_m": 37.0,
   "start_elevation_m": 34.23885897211272,
   "end_elevation_m": 39.660574576519295,
   "min_gradient_pct": 7.9817323895493075
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 26.676550416067183,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 13.0,
   "end_distance_m": 38.0,
   "start_elevation_m": 33.25026705862246,
   "end_elevation_m": 39.91940466263926,
   "min_gradient_pct": 8.227113741775327
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 24.671856077598157,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 7.0,
   "end_distance_m": 57.0,
   "start_elevation_m": 31.812349795785483,
   "end_elevation_m": 44.14827783458456,
   "min_gradient_pct": 8.473043273949429
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.905495986265937,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "start_elevation_m": 30.46920046423175,
   "end_elevation_m": 51.37469645049769,
   "min_gradient_pct": 9.550774214800015
  }
 ],
 "shape": {
  "ascent_concentration": 0.397,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 159.0,
  "shape_class": "sustained"
 },
 "length_m": 322.18795717878237,
 "start_elevation_m": 30.46920046423175,
 "end_elevation_m": 77.37757349712696,
 "endpoint_gain_m": 46.90837303289521,
 "overall_gradient_pct": 14.559319176186873,
 "accumulated_ascent_m": 46.93551779915991,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.21161784942376,
   "start_distance_m": 24.0,
   "end_distance_m": 29.0,
   "midpoint_distance_m": 26.5,
   "start_elevation_m": 36.13724550296584,
   "end_elevation_m": 37.54782639543703,
   "start_xy": [
    1753050.54713545,
    5925885.024453851
   ],
   "end_xy": [
    1753053.635497002,
    5925888.956631737
   ]
  },
  "max_10m": {
   "gradient_pct": 27.784439834725344,
   "start_distance_m": 19.0,
   "end_distance_m": 29.0,
   "midpoint_distance_m": 24.0,
   "start_elevation_m": 34.76938241196449,
   "end_elevation_m": 37.54782639543703,
   "start_xy": [
    1753047.4587738977,
    5925881.092275966
   ],
   "end_xy": [
    1753053.635497002,
    5925888.956631737
   ]
  },
  "max_20m": {
   "gradient_pct": 27.108578022032862,
   "start_distance_m": 17.0,
   "end_distance_m": 37.0,
   "midpoint_distance_m": 27.0,
   "start_elevation_m": 34.23885897211272,
   "end_elevation_m": 39.660574576519295,
   "start_xy": [
    1753046.223429277,
    5925879.519404811
   ],
   "end_xy": [
    1753058.5768754852,
    5925895.2481163535
   ]
  },
  "max_25m": {
   "gradient_pct": 26.676550416067183,
   "start_distance_m": 13.0,
   "end_distance_m": 38.0,
   "midpoint_distance_m": 25.5,
   "start_elevation_m": 33.25026705862246,
   "end_elevation_m": 39.91940466263926,
   "start_xy": [
    1753043.7527400353,
    5925876.3736625025
   ],
   "end_xy": [
    1753059.1945477957,
    5925896.034551931
   ]
  },
  "max_50m": {
   "gradient_pct": 24.671856077598157,
   "start_distance_m": 7.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 32.0,
   "start_elevation_m": 31.812349795785483,
   "end_elevation_m": 44.14827783458456,
   "start_xy": [
    1753040.0467061729,
    5925871.65504904
   ],
   "end_xy": [
    1753070.9303216934,
    5925910.976827896
   ]
  },
  "max_100m": {
   "gradient_pct": 20.905495986265937,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 30.46920046423175,
   "end_elevation_m": 51.37469645049769,
   "start_xy": [
    1753035.723,
    5925866.15
   ],
   "end_xy": [
    1753108.1392099028,
    5925926.7275693705
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.44810558442009096,
   "start_distance_m": 317.0,
   "end_distance_m": 322.0,
   "midpoint_distance_m": 319.5,
   "start_elevation_m": 77.35567213816923,
   "end_elevation_m": 77.37807741739023,
   "start_xy": [
    1753320.7123248514,
    5925958.901951811
   ],
   "end_xy": [
    1753323.849084694,
    5925962.795631008
   ]
  },
  "min_10m": {
   "gradient_pct": 4.064359130845361,
   "start_distance_m": 312.0,
   "end_distance_m": 322.0,
   "midpoint_distance_m": 317.0,
   "start_elevation_m": 76.9716415043057,
   "end_elevation_m": 77.37807741739023,
   "start_xy": [
    1753317.5041155578,
    5925955.081701901
   ],
   "end_xy": [
    1753323.849084694,
    5925962.795631008
   ]
  },
  "min_20m": {
   "gradient_pct": 7.9817323895493075,
   "start_distance_m": 92.0,
   "end_distance_m": 112.0,
   "midpoint_distance_m": 102.0,
   "start_elevation_m": 50.81540359950469,
   "end_elevation_m": 52.41175007741455,
   "start_xy": [
    1753100.6681694048,
    5925924.327914438
   ],
   "end_xy": [
    1753120.0484615937,
    5925928.200567729
   ]
  },
  "min_25m": {
   "gradient_pct": 8.227113741775327,
   "start_distance_m": 92.0,
   "end_distance_m": 117.0,
   "midpoint_distance_m": 104.5,
   "start_elevation_m": 50.81540359950469,
   "end_elevation_m": 52.87218203494852,
   "start_xy": [
    1753100.6681694048,
    5925924.327914438
   ],
   "end_xy": [
    1753125.0106497982,
    5925928.814317045
   ]
  },
  "min_50m": {
   "gradient_pct": 8.473043273949429,
   "start_distance_m": 92.0,
   "end_distance_m": 142.0,
   "midpoint_distance_m": 117.0,
   "start_elevation_m": 50.81540359950469,
   "end_elevation_m": 55.051925236479406,
   "start_xy": [
    1753100.6681694048,
    5925924.327914438
   ],
   "end_xy": [
    1753149.821590821,
    5925931.883063624
   ]
  },
  "min_100m": {
   "gradient_pct": 9.550774214800015,
   "start_distance_m": 91.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 141.0,
   "start_elevation_m": 50.69702919975654,
   "end_elevation_m": 60.24780341455656,
   "start_xy": [
    1753099.6693160855,
    5925924.280039116
   ],
   "end_xy": [
    1753198.4510352255,
    5925937.897806918
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.560959034175326,
   "start_distance_m": 25.0,
   "end_distance_m": 27.0,
   "midpoint_distance_m": 26.0,
   "start_elevation_m": 36.413674355961305,
   "end_elevation_m": 36.98489353664481,
   "start_xy": [
    1753051.1648077604,
    5925885.8108894285
   ],
   "end_xy": [
    1753052.400152381,
    5925887.383760583
   ]
  },
  "max_3m": {
   "gradient_pct": 28.55290736032643,
   "start_distance_m": 25.0,
   "end_distance_m": 28.0,
   "midpoint_distance_m": 26.5,
   "start_elevation_m": 36.413674355961305,
   "end_elevation_m": 37.2702615767711,
   "start_xy": [
    1753051.1648077604,
    5925885.8108894285
   ],
   "end_xy": [
    1753053.0178246915,
    5925888.17019616
   ]
  }
 },
 "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": 0.185,
   "obstruction_max_height_m": 26.08,
   "flagged_windows_m": [
    2,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "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-n2",
   "road_pbf": "block-batch-nz-n2.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": "sha256:1ffe0b32a690b9c1"
  },
  "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/BA31.tiff"
  ],
  "calculated_at": "2026-09-28T05:03:47+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-nz-n2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "nz-n2",
  "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": [
   "BA31"
  ],
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 3,
  "carriageway": {
   "stations": 19,
   "stations_resolved": 19,
   "width_median_m": 6.25,
   "width_p10_m": 4.4,
   "width_min_m": 4.0,
   "width_max_m": 10.0,
   "bounded_share": 0.158,
   "unbounded_share": 0.842,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.5,
   "window_m": [
    13.0,
    38.0
   ],
   "width_at_max25_m": 5.5,
   "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": 19,
    "stations_resolved": 19,
    "width_median_m": 3.5,
    "width_p10_m": 1.2,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.632,
    "unbounded_share": 0.368,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.5,
    "window_m": [
     13.0,
     38.0
    ],
    "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": "Kaip\u0101tiki",
  "county": "Auckland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}