{
 "ocl_version": "0.1.0",
 "name": "Kapena Street",
 "slug": "kapena-street",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.46810847008328,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3651.0,
   "end_distance_m": 3653.0,
   "start_elevation_m": 677.2367254105441,
   "end_elevation_m": 677.9060875799457,
   "min_gradient_pct": -11.81925175986862
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.856226842968226,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3650.0,
   "end_distance_m": 3653.0,
   "start_elevation_m": 676.9804007746567,
   "end_elevation_m": 677.9060875799457,
   "min_gradient_pct": -11.742166766468168
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.006799665323342,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3649.0,
   "end_distance_m": 3654.0,
   "start_elevation_m": 676.797468412849,
   "end_elevation_m": 678.1478083961151,
   "min_gradient_pct": -11.091093901220574
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.55168171377977,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3650.0,
   "end_distance_m": 3660.0,
   "start_elevation_m": 676.9804007746567,
   "end_elevation_m": 679.4355689460347,
   "min_gradient_pct": -5.37643539650162
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.84529584863037,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3650.0,
   "end_distance_m": 3670.0,
   "start_elevation_m": 676.9804007746567,
   "end_elevation_m": 681.5494599443828,
   "min_gradient_pct": -0.7888196309266959
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.08379097524721,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3650.0,
   "end_distance_m": 3675.0,
   "start_elevation_m": 676.9804007746567,
   "end_elevation_m": 682.5013485184685,
   "min_gradient_pct": 0.41081810279729325
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.678792817293242,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3533.0,
   "end_distance_m": 3583.0,
   "start_elevation_m": 662.4656649551476,
   "end_elevation_m": 671.8050613637943,
   "min_gradient_pct": 1.6667370344769097
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.458250656259679,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3497.0,
   "end_distance_m": 3597.0,
   "start_elevation_m": 659.075327483518,
   "end_elevation_m": 673.5335781397777,
   "min_gradient_pct": 1.835220619080701
  }
 ],
 "shape": {
  "ascent_concentration": 0.356,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 75.0,
  "shape_class": "sustained"
 },
 "length_m": 3787.98162244939,
 "start_elevation_m": 469.77456198928866,
 "end_elevation_m": 690.1282763305533,
 "endpoint_gain_m": 220.3537143412646,
 "overall_gradient_pct": 5.817180131903046,
 "accumulated_ascent_m": 222.88163893532595,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.006799665323342,
   "start_distance_m": 3649.0,
   "end_distance_m": 3654.0,
   "midpoint_distance_m": 3651.5,
   "start_elevation_m": 676.797468412849,
   "end_elevation_m": 678.1478083961151,
   "start_xy": [
    237512.05071174316,
    2220288.752465502
   ],
   "end_xy": [
    237509.74359519963,
    2220284.316565001
   ]
  },
  "max_10m": {
   "gradient_pct": 24.55168171377977,
   "start_distance_m": 3650.0,
   "end_distance_m": 3660.0,
   "midpoint_distance_m": 3655.0,
   "start_elevation_m": 676.9804007746567,
   "end_elevation_m": 679.4355689460347,
   "start_xy": [
    237511.58928843445,
    2220287.8652854017
   ],
   "end_xy": [
    237506.9750553474,
    2220278.9934843997
   ]
  },
  "max_20m": {
   "gradient_pct": 22.84529584863037,
   "start_distance_m": 3650.0,
   "end_distance_m": 3670.0,
   "midpoint_distance_m": 3660.0,
   "start_elevation_m": 676.9804007746567,
   "end_elevation_m": 681.5494599443828,
   "start_xy": [
    237511.58928843445,
    2220287.8652854017
   ],
   "end_xy": [
    237502.27294741874,
    2220270.1730074952
   ]
  },
  "max_25m": {
   "gradient_pct": 22.08379097524721,
   "start_distance_m": 3650.0,
   "end_distance_m": 3675.0,
   "midpoint_distance_m": 3662.5,
   "start_elevation_m": 676.9804007746567,
   "end_elevation_m": 682.5013485184685,
   "start_xy": [
    237511.58928843445,
    2220287.8652854017
   ],
   "end_xy": [
    237499.54273630274,
    2220265.9842192144
   ]
  },
  "max_50m": {
   "gradient_pct": 18.678792817293242,
   "start_distance_m": 3533.0,
   "end_distance_m": 3583.0,
   "midpoint_distance_m": 3558.0,
   "start_elevation_m": 662.4656649551476,
   "end_elevation_m": 671.8050613637943,
   "start_xy": [
    237565.58025746583,
    2220391.66304674
   ],
   "end_xy": [
    237542.5068770498,
    2220347.3051938144
   ]
  },
  "max_100m": {
   "gradient_pct": 14.458250656259679,
   "start_distance_m": 3497.0,
   "end_distance_m": 3597.0,
   "midpoint_distance_m": 3547.0,
   "start_elevation_m": 659.075327483518,
   "end_elevation_m": 673.5335781397777,
   "start_xy": [
    237582.19309136536,
    2220423.6007008464
   ],
   "end_xy": [
    237536.0463305333,
    2220334.8849949953
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.091093901220574,
   "start_distance_m": 3757.0,
   "end_distance_m": 3762.0,
   "midpoint_distance_m": 3759.5,
   "start_elevation_m": 689.5498100686016,
   "end_elevation_m": 688.9952553735405,
   "start_xy": [
    237454.76727400054,
    2220197.288091408
   ],
   "end_xy": [
    237452.03706288454,
    2220193.099303127
   ]
  },
  "min_10m": {
   "gradient_pct": -5.37643539650162,
   "start_distance_m": 3755.0,
   "end_distance_m": 3765.0,
   "midpoint_distance_m": 3760.0,
   "start_elevation_m": 689.6153217291524,
   "end_elevation_m": 689.0776781895022,
   "start_xy": [
    237455.85935844693,
    2220198.9636067203
   ],
   "end_xy": [
    237450.39893621497,
    2220190.5860301587
   ]
  },
  "min_20m": {
   "gradient_pct": -0.7888196309266959,
   "start_distance_m": 3755.0,
   "end_distance_m": 3775.0,
   "midpoint_distance_m": 3765.0,
   "start_elevation_m": 689.6153217291524,
   "end_elevation_m": 689.457557802967,
   "start_xy": [
    237455.85935844693,
    2220198.9636067203
   ],
   "end_xy": [
    237444.93851398298,
    2220182.2084535966
   ]
  },
  "min_25m": {
   "gradient_pct": 0.41081810279729325,
   "start_distance_m": 3755.0,
   "end_distance_m": 3780.0,
   "midpoint_distance_m": 3767.5,
   "start_elevation_m": 689.6153217291524,
   "end_elevation_m": 689.7180262548517,
   "start_xy": [
    237455.85935844693,
    2220198.9636067203
   ],
   "end_xy": [
    237442.208302867,
    2220178.0196653157
   ]
  },
  "min_50m": {
   "gradient_pct": 1.6667370344769097,
   "start_distance_m": 26.0,
   "end_distance_m": 76.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 470.37003029772507,
   "end_elevation_m": 471.2033988149635,
   "start_xy": [
    240683.21907185932,
    2221203.8776884093
   ],
   "end_xy": [
    240633.4615177427,
    2221198.9597815042
   ]
  },
  "min_100m": {
   "gradient_pct": 1.835220619080701,
   "start_distance_m": 11.0,
   "end_distance_m": 111.0,
   "midpoint_distance_m": 61.0,
   "start_elevation_m": 470.0512782904173,
   "end_elevation_m": 471.886498909498,
   "start_xy": [
    240698.14633809432,
    2221205.353060481
   ],
   "end_xy": [
    240598.63122986103,
    2221195.5172466706
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.46810847008328,
   "start_distance_m": 3651.0,
   "end_distance_m": 3653.0,
   "midpoint_distance_m": 3652.0,
   "start_elevation_m": 677.2367254105441,
   "end_elevation_m": 677.9060875799457,
   "start_xy": [
    237511.12786512575,
    2220286.9781053015
   ],
   "end_xy": [
    237510.20501850834,
    2220285.203745101
   ]
  },
  "max_3m": {
   "gradient_pct": 30.856226842968226,
   "start_distance_m": 3650.0,
   "end_distance_m": 3653.0,
   "midpoint_distance_m": 3651.5,
   "start_elevation_m": 676.9804007746567,
   "end_elevation_m": 677.9060875799457,
   "start_xy": [
    237511.58928843445,
    2220287.8652854017
   ],
   "end_xy": [
    237510.20501850834,
    2220285.203745101
   ]
  }
 },
 "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": {
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "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:26905",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/hi-east/USGS_1M_5_x23y223_HI_Hawaii_Island_Lidar_NOAA_2017_B17.tif",
   "data/cache/usa/hi-east/USGS_1M_5_x24y223_HI_Hawaii_Island_Lidar_NOAA_2017_B17.tif"
  ],
  "calculated_at": "2026-09-08T04:20:02+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/hawaii-2026-09-08-batch-band1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "hi-run5-260908",
  "elevation_provider": "USGS 3DEP (The National Map)",
  "elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
  "elevation_dataset": "USGS 3DEP 1 m DEM, HI_Hawaii_Island_Lidar_NOAA_2017_B17 (collected 2017)",
  "elevation_tile_ids": [
   "x23y223",
   "x24y223"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Honokaa-Kukuihaele",
  "county": "Hawaii"
 }
}