{
 "ocl_version": "0.1.0",
 "name": "Larsens Drive",
 "slug": "larsens-drive",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.628837670985092,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 184.0,
   "end_distance_m": 186.0,
   "start_elevation_m": 183.34434491933007,
   "end_elevation_m": 183.81692167274977,
   "min_gradient_pct": -33.05555487245613,
   "suppressed_max_gradient_pct": 51.68698384675139,
   "suppressed_location_m": [
    118.0,
    120.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 20.513639738254597,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 183.0,
   "end_distance_m": 186.0,
   "start_elevation_m": 183.20151248060213,
   "end_elevation_m": 183.81692167274977,
   "min_gradient_pct": -19.35661732198355,
   "suppressed_max_gradient_pct": 48.06259441111441,
   "suppressed_location_m": [
    118.0,
    121.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 18.628447542774893,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 243.0,
   "end_distance_m": 248.0,
   "start_elevation_m": 191.5150442118981,
   "end_elevation_m": 192.44646658903685,
   "min_gradient_pct": -13.565504830281157,
   "suppressed_max_gradient_pct": 38.7085850015211,
   "suppressed_location_m": [
    117.0,
    122.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 18.024715724419593,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 241.0,
   "end_distance_m": 251.0,
   "start_elevation_m": 191.16724492046689,
   "end_elevation_m": 192.96971649290884,
   "min_gradient_pct": -5.595676307651161,
   "suppressed_max_gradient_pct": 32.691317037717056,
   "suppressed_location_m": [
    111.0,
    121.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 16.399345654674562,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 234.0,
   "end_distance_m": 254.0,
   "start_elevation_m": 190.12121548343015,
   "end_elevation_m": 193.40108461436506,
   "min_gradient_pct": -0.5766618098937215,
   "suppressed_max_gradient_pct": 29.463990071348007,
   "suppressed_location_m": [
    101.0,
    121.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 15.327767159171572,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 230.0,
   "end_distance_m": 255.0,
   "start_elevation_m": 189.69236701855093,
   "end_elevation_m": 193.52430880834382,
   "min_gradient_pct": -0.09432232750259573,
   "suppressed_max_gradient_pct": 26.55997917047773,
   "suppressed_location_m": [
    97.0,
    122.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.647632576167155,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 203.0,
   "end_distance_m": 253.0,
   "start_elevation_m": 185.94189566611354,
   "end_elevation_m": 193.26571195419712,
   "min_gradient_pct": 0.24300989762286918,
   "suppressed_max_gradient_pct": 19.23897251963723,
   "suppressed_location_m": [
    98.0,
    148.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 12.801005650497158,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 155.0,
   "end_distance_m": 255.0,
   "start_elevation_m": 180.72330315784666,
   "end_elevation_m": 193.52430880834382,
   "min_gradient_pct": 3.8778845705259357,
   "suppressed_max_gradient_pct": 14.40576270308344,
   "suppressed_location_m": [
    99.0,
    199.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.392,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 55.0,
  "shape_class": "sustained"
 },
 "length_m": 311.49854317714346,
 "start_elevation_m": 167.33894436298434,
 "end_elevation_m": 198.44144400194025,
 "endpoint_gain_m": 31.10249963895592,
 "overall_gradient_pct": 9.984797784838596,
 "accumulated_ascent_m": 33.933245225358775,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 18.628447542774893,
   "start_distance_m": 243.0,
   "end_distance_m": 248.0,
   "midpoint_distance_m": 245.5,
   "start_elevation_m": 191.5150442118981,
   "end_elevation_m": 192.44646658903685,
   "start_xy": [
    544920.4976140186,
    4529640.120109063
   ],
   "end_xy": [
    544924.2070053042,
    4529636.7683223495
   ]
  },
  "max_10m": {
   "gradient_pct": 18.024715724419593,
   "start_distance_m": 241.0,
   "end_distance_m": 251.0,
   "midpoint_distance_m": 246.0,
   "start_elevation_m": 191.16724492046689,
   "end_elevation_m": 192.96971649290884,
   "start_xy": [
    544919.2842552504,
    4529641.7064058585
   ],
   "end_xy": [
    544926.4220950847,
    4529634.748131113
   ]
  },
  "max_20m": {
   "gradient_pct": 16.399345654674562,
   "start_distance_m": 234.0,
   "end_distance_m": 254.0,
   "midpoint_distance_m": 244.0,
   "start_elevation_m": 190.12121548343015,
   "end_elevation_m": 193.40108461436506,
   "start_xy": [
    544915.5598159784,
    4529647.603314633
   ],
   "end_xy": [
    544928.1362402345,
    4529632.291804483
   ]
  },
  "max_25m": {
   "gradient_pct": 15.327767159171572,
   "start_distance_m": 230.0,
   "end_distance_m": 255.0,
   "midpoint_distance_m": 242.5,
   "start_elevation_m": 189.69236701855093,
   "end_elevation_m": 193.52430880834382,
   "start_xy": [
    544913.9083632128,
    4529650.406515918
   ],
   "end_xy": [
    544928.6810958505,
    4529631.453274637
   ]
  },
  "max_50m": {
   "gradient_pct": 14.647632576167155,
   "start_distance_m": 203.0,
   "end_distance_m": 253.0,
   "midpoint_distance_m": 228.0,
   "start_elevation_m": 185.94189566611354,
   "end_elevation_m": 193.26571195419712,
   "start_xy": [
    544890.8695403904,
    4529636.44985709
   ],
   "end_xy": [
    544927.5911543621,
    4529633.130184669
   ]
  },
  "max_100m": {
   "gradient_pct": 12.801005650497158,
   "start_distance_m": 155.0,
   "end_distance_m": 255.0,
   "midpoint_distance_m": 205.0,
   "start_elevation_m": 180.72330315784666,
   "end_elevation_m": 193.52430880834382,
   "start_xy": [
    544848.7618771114,
    4529613.644240442
   ],
   "end_xy": [
    544928.6810958505,
    4529631.453274637
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.565504830281157,
   "start_distance_m": 122.0,
   "end_distance_m": 127.0,
   "midpoint_distance_m": 124.5,
   "start_elevation_m": 177.65250527756905,
   "end_elevation_m": 176.974230036055,
   "start_xy": [
    544827.4806632833,
    4529588.6691252915
   ],
   "end_xy": [
    544830.4561983694,
    4529592.687307554
   ]
  },
  "min_10m": {
   "gradient_pct": -5.595676307651161,
   "start_distance_m": 89.0,
   "end_distance_m": 99.0,
   "midpoint_distance_m": 94.0,
   "start_elevation_m": 171.55286361302382,
   "end_elevation_m": 170.9932959822587,
   "start_xy": [
    544808.5539676897,
    4529562.404691747
   ],
   "end_xy": [
    544811.7826560641,
    4529571.868654604
   ]
  },
  "min_20m": {
   "gradient_pct": -0.5766618098937215,
   "start_distance_m": 40.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 168.09662087694647,
   "end_elevation_m": 167.98128851496773,
   "start_xy": [
    544783.3391649768,
    4529520.761350479
   ],
   "end_xy": [
    544792.5309983823,
    4529538.497485049
   ]
  },
  "min_25m": {
   "gradient_pct": -0.09432232750259573,
   "start_distance_m": 35.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 47.5,
   "start_elevation_m": 168.00486909684338,
   "end_elevation_m": 167.98128851496773,
   "start_xy": [
    544781.2121547093,
    4529516.236328666
   ],
   "end_xy": [
    544792.5309983823,
    4529538.497485049
   ]
  },
  "min_50m": {
   "gradient_pct": 0.24300989762286918,
   "start_distance_m": 10.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 35.0,
   "start_elevation_m": 167.8597835661563,
   "end_elevation_m": 167.98128851496773,
   "start_xy": [
    544771.9420000003,
    4529493.026000001
   ],
   "end_xy": [
    544792.5309983823,
    4529538.497485049
   ]
  },
  "min_100m": {
   "gradient_pct": 3.8778845705259357,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 167.33894436298434,
   "end_elevation_m": 171.21682893351027,
   "start_xy": [
    544768.422,
    4529483.666
   ],
   "end_xy": [
    544812.379569537,
    4529572.670708957
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.628837670985092,
   "start_distance_m": 184.0,
   "end_distance_m": 186.0,
   "midpoint_distance_m": 185.0,
   "start_elevation_m": 183.34434491933007,
   "end_elevation_m": 183.81692167274977,
   "start_xy": [
    544873.4820117496,
    4529628.791472333
   ],
   "end_xy": [
    544875.2991673602,
    4529629.626117117
   ]
  },
  "max_3m": {
   "gradient_pct": 20.513639738254597,
   "start_distance_m": 183.0,
   "end_distance_m": 186.0,
   "midpoint_distance_m": 184.5,
   "start_elevation_m": 183.20151248060213,
   "end_elevation_m": 183.81692167274977,
   "start_xy": [
    544872.6241036704,
    4529628.277940998
   ],
   "end_xy": [
    544875.2991673602,
    4529629.626117117
   ]
  }
 },
 "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": {
  "no_bench_suppression": {
   "masked_fraction": 0.099,
   "windows_resited": [
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.237,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 111.0,
     "end_m": 136.0,
     "raw_pct": 20.21,
     "reason": "staircase+mask-edge"
    },
    {
     "window_m": 20.0,
     "start_m": 112.0,
     "end_m": 132.0,
     "raw_pct": 19.38,
     "reason": "staircase+mask-edge"
    },
    {
     "window_m": 10.0,
     "start_m": 111.0,
     "end_m": 121.0,
     "raw_pct": 32.69,
     "reason": "mask-edge"
    },
    {
     "window_m": 5.0,
     "start_m": 117.0,
     "end_m": 122.0,
     "raw_pct": 38.71,
     "reason": "short-step"
    },
    {
     "window_m": 10.0,
     "start_m": 65.0,
     "end_m": 75.0,
     "raw_pct": 22.77,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.313,
   "obstruction_max_height_m": 24.26,
   "flagged_windows_m": [
    2,
    3,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    63.0,
    77.0
   ],
   [
    80.0,
    138.0
   ]
  ],
  "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_x54y453_NJ_NW_New_Jersey_6_County_Lidar_2017_B17.tif"
  ],
  "calculated_at": "2026-09-11T23:14:20+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-roads.osm.pbf",
  "osm_snapshot": "2026-09-04T20:21:21Z",
  "run_id": "texture-us-nj-260911",
  "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": [
   "x54y453"
  ],
  "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": "Denville",
  "county": "New Jersey"
 }
}