{
 "ocl_version": "0.1.0",
 "name": "Oak Lane",
 "slug": "oak-lane",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.72752390420021,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1099.0,
   "end_distance_m": 1101.0,
   "start_elevation_m": 223.89882993716725,
   "end_elevation_m": 224.41338041525125,
   "min_gradient_pct": -56.75984431332495,
   "suppressed_max_gradient_pct": 61.500725672732415,
   "suppressed_location_m": [
    20.0,
    22.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.55769402307438,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1056.0,
   "end_distance_m": 1059.0,
   "start_elevation_m": 215.69424286766818,
   "end_elevation_m": 216.4609736883604,
   "min_gradient_pct": -47.61568052113508,
   "suppressed_max_gradient_pct": 51.37166186465644,
   "suppressed_location_m": [
    20.0,
    23.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.43054960326458,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1056.0,
   "end_distance_m": 1061.0,
   "start_elevation_m": 215.69424286766818,
   "end_elevation_m": 216.9657703478314,
   "min_gradient_pct": -29.240740536757528,
   "suppressed_max_gradient_pct": 35.51681763491189,
   "suppressed_location_m": [
    19.0,
    24.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.620098466527907,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1055.0,
   "end_distance_m": 1065.0,
   "start_elevation_m": 215.45838286969212,
   "end_elevation_m": 217.9203927163449,
   "min_gradient_pct": -13.590558089534568
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.122341345838606,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1049.0,
   "end_distance_m": 1069.0,
   "start_elevation_m": 214.14172965062647,
   "end_elevation_m": 218.7661979197942,
   "min_gradient_pct": -6.292237914704657
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.513777228082404,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1046.0,
   "end_distance_m": 1071.0,
   "start_elevation_m": 213.5405611732418,
   "end_elevation_m": 219.1690054802624,
   "min_gradient_pct": -5.968754877908509
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.858483327539375,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1022.0,
   "end_distance_m": 1072.0,
   "start_elevation_m": 208.92957121755643,
   "end_elevation_m": 219.35881288132612,
   "min_gradient_pct": -4.505281946672369
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.370843674289148,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1009.0,
   "end_distance_m": 1109.0,
   "start_elevation_m": 206.53085496131655,
   "end_elevation_m": 225.9016986356057,
   "min_gradient_pct": -2.4942574721822837
  }
 ],
 "shape": {
  "ascent_concentration": 0.37,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 227.0,
  "shape_class": "sustained"
 },
 "length_m": 1143.0000000000607,
 "start_elevation_m": 125.74920116210751,
 "end_elevation_m": 230.457426404035,
 "endpoint_gain_m": 104.7082252419275,
 "overall_gradient_pct": 9.16082460559247,
 "accumulated_ascent_m": 109.03761869393459,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.43054960326458,
   "start_distance_m": 1056.0,
   "end_distance_m": 1061.0,
   "midpoint_distance_m": 1058.5,
   "start_elevation_m": 215.69424286766818,
   "end_elevation_m": 216.9657703478314,
   "start_xy": [
    552022.9613157148,
    4531327.980759028
   ],
   "end_xy": [
    552019.307127188,
    4531331.331454787
   ]
  },
  "max_10m": {
   "gradient_pct": 24.620098466527907,
   "start_distance_m": 1055.0,
   "end_distance_m": 1065.0,
   "midpoint_distance_m": 1060.0,
   "start_elevation_m": 215.45838286969212,
   "end_elevation_m": 217.9203927163449,
   "start_xy": [
    552023.7751991373,
    4531327.399730824
   ],
   "end_xy": [
    552016.7596704247,
    4531334.4153588135
   ]
  },
  "max_20m": {
   "gradient_pct": 23.122341345838606,
   "start_distance_m": 1049.0,
   "end_distance_m": 1069.0,
   "midpoint_distance_m": 1059.0,
   "start_elevation_m": 214.14172965062647,
   "end_elevation_m": 218.7661979197942,
   "start_xy": [
    552028.6746094485,
    4531323.940511399
   ],
   "end_xy": [
    552014.2122136616,
    4531337.499262839
   ]
  },
  "max_25m": {
   "gradient_pct": 22.513777228082404,
   "start_distance_m": 1046.0,
   "end_distance_m": 1071.0,
   "midpoint_distance_m": 1058.5,
   "start_elevation_m": 213.5405611732418,
   "end_elevation_m": 219.1690054802624,
   "start_xy": [
    552031.3660026967,
    4531322.615218079
   ],
   "end_xy": [
    552012.93848528,
    4531339.041214852
   ]
  },
  "max_50m": {
   "gradient_pct": 20.858483327539375,
   "start_distance_m": 1022.0,
   "end_distance_m": 1072.0,
   "midpoint_distance_m": 1047.0,
   "start_elevation_m": 208.92957121755643,
   "end_elevation_m": 219.35881288132612,
   "start_xy": [
    552053.6399075299,
    4531313.873232772
   ],
   "end_xy": [
    552012.3016210892,
    4531339.812190858
   ]
  },
  "max_100m": {
   "gradient_pct": 19.370843674289148,
   "start_distance_m": 1009.0,
   "end_distance_m": 1109.0,
   "midpoint_distance_m": 1059.0,
   "start_elevation_m": 206.53085496131655,
   "end_elevation_m": 225.9016986356057,
   "start_xy": [
    552065.9965285569,
    4531316.765260643
   ],
   "end_xy": [
    551981.5918466792,
    4531355.580654818
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -29.240740536757528,
   "start_distance_m": 13.0,
   "end_distance_m": 18.0,
   "midpoint_distance_m": 15.5,
   "start_elevation_m": 125.91240361373463,
   "end_elevation_m": 124.45036658689675,
   "start_xy": [
    552504.6772920848,
    4531939.30629485
   ],
   "end_xy": [
    552499.6839428865,
    4531939.564100562
   ]
  },
  "min_10m": {
   "gradient_pct": -13.590558089534568,
   "start_distance_m": 8.0,
   "end_distance_m": 18.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 125.8094223958502,
   "end_elevation_m": 124.45036658689675,
   "start_xy": [
    552509.6706412829,
    4531939.0484891385
   ],
   "end_xy": [
    552499.6839428865,
    4531939.564100562
   ]
  },
  "min_20m": {
   "gradient_pct": -6.292237914704657,
   "start_distance_m": 406.0,
   "end_distance_m": 426.0,
   "midpoint_distance_m": 416.0,
   "start_elevation_m": 147.7639637835605,
   "end_elevation_m": 146.50551620061958,
   "start_xy": [
    552348.7380069944,
    4531668.122164142
   ],
   "end_xy": [
    552352.8418400853,
    4531648.547727906
   ]
  },
  "min_25m": {
   "gradient_pct": -5.968754877908509,
   "start_distance_m": 405.0,
   "end_distance_m": 430.0,
   "midpoint_distance_m": 417.5,
   "start_elevation_m": 147.813222858811,
   "end_elevation_m": 146.32103413933388,
   "start_xy": [
    552348.5328153399,
    4531669.100885955
   ],
   "end_xy": [
    552353.6626067035,
    4531644.6328406595
   ]
  },
  "min_50m": {
   "gradient_pct": -4.505281946672369,
   "start_distance_m": 395.0,
   "end_distance_m": 445.0,
   "midpoint_distance_m": 420.0,
   "start_elevation_m": 148.14161288481563,
   "end_elevation_m": 145.88897191147944,
   "start_xy": [
    552346.5397026329,
    4531678.899111869
   ],
   "end_xy": [
    552356.7404815217,
    4531629.952013482
   ]
  },
  "min_100m": {
   "gradient_pct": -2.4942574721822837,
   "start_distance_m": 361.0,
   "end_distance_m": 461.0,
   "midpoint_distance_m": 411.0,
   "start_elevation_m": 148.1926034821836,
   "end_elevation_m": 145.69834601000133,
   "start_xy": [
    552341.807045456,
    4531712.546122581
   ],
   "end_xy": [
    552360.0235479944,
    4531614.292464493
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.72752390420021,
   "start_distance_m": 1099.0,
   "end_distance_m": 1101.0,
   "midpoint_distance_m": 1100.0,
   "start_elevation_m": 223.89882993716725,
   "end_elevation_m": 224.41338041525125,
   "start_xy": [
    551991.4564264346,
    4531354.942481998
   ],
   "end_xy": [
    551989.5423491182,
    4531355.522402706
   ]
  },
  "max_3m": {
   "gradient_pct": 25.55769402307438,
   "start_distance_m": 1056.0,
   "end_distance_m": 1059.0,
   "midpoint_distance_m": 1057.5,
   "start_elevation_m": 215.69424286766818,
   "end_elevation_m": 216.4609736883604,
   "start_xy": [
    552022.9613157148,
    4531327.980759028
   ],
   "end_xy": [
    552020.5808555696,
    4531329.789502774
   ]
  }
 },
 "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": 0.01,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.272,
   "obstruction_max_height_m": 28.31,
   "flagged_windows_m": [
    2,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    13.0,
    24.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/nj/USGS_1M_18_x55y454_NJ_NW_New_Jersey_6_County_Lidar_2017_B17.tif"
  ],
  "calculated_at": "2026-09-06T02:34:25+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-jersey-2026-09-06.osm.pbf",
  "osm_snapshot": "2026-09-04T20:21:21Z",
  "run_id": "nj-run2-260906",
  "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, NJ_NW_New_Jersey_6_County_Lidar_2017_B17 (collected 2017)",
  "elevation_tile_ids": [
   "x55y454"
  ],
  "route_summit_trim_m": 220.7,
  "route_summit_trim_loss_m": 6.7,
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NJ_NW6Co_2017",
   "ept_crs": "EPSG:3857",
   "station_coverage": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Montville",
  "county": "New Jersey"
 }
}