{
 "ocl_version": "0.1.0",
 "name": "Glenmohr Road",
 "slug": "glenmohr-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.868133486305396,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2473.0,
   "end_distance_m": 2475.0,
   "start_elevation_m": 75.46197125506654,
   "end_elevation_m": 76.13933392479265,
   "min_gradient_pct": -25.09268621540457
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.3864622141618,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2473.0,
   "end_distance_m": 2476.0,
   "start_elevation_m": 75.46197125506654,
   "end_elevation_m": 76.4335651214914,
   "min_gradient_pct": -23.011757574411718
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 30.801527698112636,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2470.0,
   "end_distance_m": 2475.0,
   "start_elevation_m": 74.59925753988702,
   "end_elevation_m": 76.13933392479265,
   "min_gradient_pct": -19.796860500698727
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.303761365789143,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2470.0,
   "end_distance_m": 2480.0,
   "start_elevation_m": 74.59925753988702,
   "end_elevation_m": 77.52963367646593,
   "min_gradient_pct": -13.51696417873761
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.627647744551567,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2464.0,
   "end_distance_m": 2484.0,
   "start_elevation_m": 73.70824612979163,
   "end_elevation_m": 78.23377567870195,
   "min_gradient_pct": -10.963768407396444
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.344119649933305,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2469.0,
   "end_distance_m": 2494.0,
   "start_elevation_m": 74.377295935746,
   "end_elevation_m": 79.46332584822933,
   "min_gradient_pct": -10.46404991246709
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.500842661220133,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2453.0,
   "end_distance_m": 2503.0,
   "start_elevation_m": 72.15812814103487,
   "end_elevation_m": 80.90854947164493,
   "min_gradient_pct": -9.944315213055859
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.036567926812424,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2406.0,
   "end_distance_m": 2506.0,
   "start_elevation_m": 66.39181842790393,
   "end_elevation_m": 81.42838635471635,
   "min_gradient_pct": -7.085260195307775
  }
 ],
 "shape": {
  "ascent_concentration": 0.472,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 61.0,
  "shape_class": "stepped"
 },
 "length_m": 3474.0000000000796,
 "start_elevation_m": 20.75678761565515,
 "end_elevation_m": 106.3547970796817,
 "endpoint_gain_m": 85.59800946402655,
 "overall_gradient_pct": 2.4639611244681805,
 "accumulated_ascent_m": 121.32571700990567,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 30.801527698112636,
   "start_distance_m": 2470.0,
   "end_distance_m": 2475.0,
   "midpoint_distance_m": 2472.5,
   "start_elevation_m": 74.59925753988702,
   "end_elevation_m": 76.13933392479265,
   "start_xy": [
    1729656.7453721843,
    6010825.7710698
   ],
   "end_xy": [
    1729659.8630459667,
    6010821.862091648
   ]
  },
  "max_10m": {
   "gradient_pct": 29.303761365789143,
   "start_distance_m": 2470.0,
   "end_distance_m": 2480.0,
   "midpoint_distance_m": 2475.0,
   "start_elevation_m": 74.59925753988702,
   "end_elevation_m": 77.52963367646593,
   "start_xy": [
    1729656.7453721843,
    6010825.7710698
   ],
   "end_xy": [
    1729662.980719749,
    6010817.953113497
   ]
  },
  "max_20m": {
   "gradient_pct": 22.627647744551567,
   "start_distance_m": 2464.0,
   "end_distance_m": 2484.0,
   "midpoint_distance_m": 2474.0,
   "start_elevation_m": 73.70824612979163,
   "end_elevation_m": 78.23377567870195,
   "start_xy": [
    1729653.0041636457,
    6010830.461843581
   ],
   "end_xy": [
    1729665.592448352,
    6010814.943876008
   ]
  },
  "max_25m": {
   "gradient_pct": 20.344119649933305,
   "start_distance_m": 2469.0,
   "end_distance_m": 2494.0,
   "midpoint_distance_m": 2481.5,
   "start_elevation_m": 74.377295935746,
   "end_elevation_m": 79.46332584822933,
   "start_xy": [
    1729656.1218374278,
    6010826.55286543
   ],
   "end_xy": [
    1729673.4291890196,
    6010808.732153565
   ]
  },
  "max_50m": {
   "gradient_pct": 17.500842661220133,
   "start_distance_m": 2453.0,
   "end_distance_m": 2503.0,
   "midpoint_distance_m": 2478.0,
   "start_elevation_m": 72.15812814103487,
   "end_elevation_m": 80.90854947164493,
   "start_xy": [
    1729646.1452813249,
    6010839.061595514
   ],
   "end_xy": [
    1729680.4822556204,
    6010803.1416033665
   ]
  },
  "max_100m": {
   "gradient_pct": 15.036567926812424,
   "start_distance_m": 2406.0,
   "end_distance_m": 2506.0,
   "midpoint_distance_m": 2456.0,
   "start_elevation_m": 66.39181842790393,
   "end_elevation_m": 81.42838635471635,
   "start_xy": [
    1729616.8391477717,
    6010875.805990136
   ],
   "end_xy": [
    1729682.8332778208,
    6010801.278086633
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -19.796860500698727,
   "start_distance_m": 2024.0,
   "end_distance_m": 2029.0,
   "midpoint_distance_m": 2026.5,
   "start_elevation_m": 36.71619537572159,
   "end_elevation_m": 35.72635235068665,
   "start_xy": [
    1729280.230172678,
    6011012.205961969
   ],
   "end_xy": [
    1729285.216219275,
    6011011.8326801285
   ]
  },
  "min_10m": {
   "gradient_pct": -13.51696417873761,
   "start_distance_m": 2019.0,
   "end_distance_m": 2029.0,
   "midpoint_distance_m": 2024.0,
   "start_elevation_m": 37.078048768560414,
   "end_elevation_m": 35.72635235068665,
   "start_xy": [
    1729275.244126081,
    6011012.57924381
   ],
   "end_xy": [
    1729285.216219275,
    6011011.8326801285
   ]
  },
  "min_20m": {
   "gradient_pct": -10.963768407396444,
   "start_distance_m": 562.0,
   "end_distance_m": 582.0,
   "midpoint_distance_m": 572.0,
   "start_elevation_m": 44.147225380136604,
   "end_elevation_m": 41.954471698657315,
   "start_xy": [
    1728367.0819432046,
    6011870.938249631
   ],
   "end_xy": [
    1728377.0005672295,
    6011853.571013309
   ]
  },
  "min_25m": {
   "gradient_pct": -10.46404991246709,
   "start_distance_m": 557.0,
   "end_distance_m": 582.0,
   "midpoint_distance_m": 569.5,
   "start_elevation_m": 44.57048417677409,
   "end_elevation_m": 41.954471698657315,
   "start_xy": [
    1728364.6022871982,
    6011875.280058711
   ],
   "end_xy": [
    1728377.0005672295,
    6011853.571013309
   ]
  },
  "min_50m": {
   "gradient_pct": -9.944315213055859,
   "start_distance_m": 532.0,
   "end_distance_m": 582.0,
   "midpoint_distance_m": 557.0,
   "start_elevation_m": 46.926629305185244,
   "end_elevation_m": 41.954471698657315,
   "start_xy": [
    1728351.9165212356,
    6011896.682244889
   ],
   "end_xy": [
    1728377.0005672295,
    6011853.571013309
   ]
  },
  "min_100m": {
   "gradient_pct": -7.085260195307775,
   "start_distance_m": 523.0,
   "end_distance_m": 623.0,
   "midpoint_distance_m": 573.0,
   "start_elevation_m": 47.53444805910608,
   "end_elevation_m": 40.44918786379831,
   "start_xy": [
    1728350.4737250353,
    6011905.500821424
   ],
   "end_xy": [
    1728397.3337464808,
    6011817.96817885
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.868133486305396,
   "start_distance_m": 2473.0,
   "end_distance_m": 2475.0,
   "midpoint_distance_m": 2474.0,
   "start_elevation_m": 75.46197125506654,
   "end_elevation_m": 76.13933392479265,
   "start_xy": [
    1729658.6159764538,
    6010823.425682909
   ],
   "end_xy": [
    1729659.8630459667,
    6010821.862091648
   ]
  },
  "max_3m": {
   "gradient_pct": 32.3864622141618,
   "start_distance_m": 2473.0,
   "end_distance_m": 2476.0,
   "midpoint_distance_m": 2474.5,
   "start_elevation_m": 75.46197125506654,
   "end_elevation_m": 76.4335651214914,
   "start_xy": [
    1729658.6159764538,
    6010823.425682909
   ],
   "end_xy": [
    1729660.4865807232,
    6010821.080296018
   ]
  }
 },
 "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": 0.006,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.227,
   "obstruction_max_height_m": 31.11,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "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/AY30.tiff"
  ],
  "calculated_at": "2026-09-28T05:16:01+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": [
   "AY30"
  ],
  "route_summit_trim_m": 585.4,
  "route_summit_trim_loss_m": 27.7,
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 1,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "carriageway": {
   "stations": 145,
   "stations_resolved": 145,
   "width_median_m": 7.25,
   "width_p10_m": 4.5,
   "width_min_m": 2.0,
   "width_max_m": 11.0,
   "bounded_share": 0.083,
   "unbounded_share": 0.917,
   "confidence_median": 0.0,
   "width_median_bounded_m": 7.5,
   "window_m": [
    2469.0,
    2494.0
   ],
   "width_at_max25_m": 8.25,
   "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": 145,
    "stations_resolved": 145,
    "width_median_m": 7.75,
    "width_p10_m": 1.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.538,
    "unbounded_share": 0.462,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.75,
    "window_m": [
     2469.0,
     2494.0
    ],
    "width_at_max25_m": 1.0,
    "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": "Rodney",
  "county": "Northland",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}