{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (40.5833, -74.9233)",
 "slug": "discovered-lane-40-5833-74-9233",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.263876768811656,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 227.0,
   "end_distance_m": 229.0,
   "start_elevation_m": 155.952519150562,
   "end_elevation_m": 156.47779668593824,
   "min_gradient_pct": -6.599446133920139
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.847434501193334,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 226.0,
   "end_distance_m": 229.0,
   "start_elevation_m": 155.70237365090244,
   "end_elevation_m": 156.47779668593824,
   "min_gradient_pct": -6.496320648073113
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.82164736540426,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 239.0,
   "end_distance_m": 244.0,
   "start_elevation_m": 158.73730489031715,
   "end_elevation_m": 159.97838725858736,
   "min_gradient_pct": -6.275341900359308
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.1880880178536,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 239.0,
   "end_distance_m": 249.0,
   "start_elevation_m": 158.73730489031715,
   "end_elevation_m": 161.1561136921025,
   "min_gradient_pct": -5.631351107424507
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.722238264676605,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 226.0,
   "end_distance_m": 246.0,
   "start_elevation_m": 155.70237365090244,
   "end_elevation_m": 160.44682130383777,
   "min_gradient_pct": -5.472638838242148
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.66591416671963,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 225.0,
   "end_distance_m": 250.0,
   "start_elevation_m": 155.47021443223178,
   "end_elevation_m": 161.3866929739117,
   "min_gradient_pct": -5.265197861780052
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.926432552485153,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 225.0,
   "end_distance_m": 275.0,
   "start_elevation_m": 155.47021443223178,
   "end_elevation_m": 166.93343070847436,
   "min_gradient_pct": -4.609864256353774
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.901339345656908,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 222.0,
   "end_distance_m": 322.0,
   "start_elevation_m": 154.9709555188375,
   "end_elevation_m": 174.87229486449442,
   "min_gradient_pct": -3.707095193164605
  }
 ],
 "shape": {
  "ascent_concentration": 0.601,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 109.0,
  "shape_class": "stepped"
 },
 "length_m": 650.3134676638822,
 "start_elevation_m": 148.1819900592021,
 "end_elevation_m": 179.90875445579553,
 "endpoint_gain_m": 31.72676439659344,
 "overall_gradient_pct": 4.878687890405428,
 "accumulated_ascent_m": 37.27840933128985,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.82164736540426,
   "start_distance_m": 239.0,
   "end_distance_m": 244.0,
   "midpoint_distance_m": 241.5,
   "start_elevation_m": 158.73730489031715,
   "end_elevation_m": 159.97838725858736,
   "start_xy": [
    506518.37042018963,
    4492372.202554322
   ],
   "end_xy": [
    506514.9114757936,
    4492375.81305341
   ]
  },
  "max_10m": {
   "gradient_pct": 24.1880880178536,
   "start_distance_m": 239.0,
   "end_distance_m": 249.0,
   "midpoint_distance_m": 244.0,
   "start_elevation_m": 158.73730489031715,
   "end_elevation_m": 161.1561136921025,
   "start_xy": [
    506518.37042018963,
    4492372.202554322
   ],
   "end_xy": [
    506511.33152684604,
    4492379.299331498
   ]
  },
  "max_20m": {
   "gradient_pct": 23.722238264676605,
   "start_distance_m": 226.0,
   "end_distance_m": 246.0,
   "midpoint_distance_m": 236.0,
   "start_elevation_m": 155.70237365090244,
   "end_elevation_m": 160.44682130383777,
   "start_xy": [
    506526.07096056914,
    4492362.04654534
   ],
   "end_xy": [
    506513.5278980351,
    4492377.257253045
   ]
  },
  "max_25m": {
   "gradient_pct": 23.66591416671963,
   "start_distance_m": 225.0,
   "end_distance_m": 250.0,
   "midpoint_distance_m": 237.5,
   "start_elevation_m": 155.47021443223178,
   "end_elevation_m": 161.3866929739117,
   "start_xy": [
    506526.3750547555,
    4492361.093903367
   ],
   "end_xy": [
    506510.59153116203,
    4492379.971943115
   ]
  },
  "max_50m": {
   "gradient_pct": 22.926432552485153,
   "start_distance_m": 225.0,
   "end_distance_m": 275.0,
   "midpoint_distance_m": 250.0,
   "start_elevation_m": 155.47021443223178,
   "end_elevation_m": 166.93343070847436,
   "start_xy": [
    506526.3750547555,
    4492361.093903367
   ],
   "end_xy": [
    506493.862014958,
    4492398.31908094
   ]
  },
  "max_100m": {
   "gradient_pct": 19.901339345656908,
   "start_distance_m": 222.0,
   "end_distance_m": 322.0,
   "midpoint_distance_m": 272.0,
   "start_elevation_m": 154.9709555188375,
   "end_elevation_m": 174.87229486449442,
   "start_xy": [
    506527.28733731457,
    4492358.235977453
   ],
   "end_xy": [
    506483.51310788887,
    4492441.878216687
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.275341900359308,
   "start_distance_m": 404.0,
   "end_distance_m": 409.0,
   "midpoint_distance_m": 406.5,
   "start_elevation_m": 174.39141505226274,
   "end_elevation_m": 174.07764795724478,
   "start_xy": [
    506495.88137597335,
    4492522.603997258
   ],
   "end_xy": [
    506499.10216621775,
    4492526.226166061
   ]
  },
  "min_10m": {
   "gradient_pct": -5.631351107424507,
   "start_distance_m": 399.0,
   "end_distance_m": 409.0,
   "midpoint_distance_m": 404.0,
   "start_elevation_m": 174.64078306798723,
   "end_elevation_m": 174.07764795724478,
   "start_xy": [
    506494.41534280917,
    4492517.823751787
   ],
   "end_xy": [
    506499.10216621775,
    4492526.226166061
   ]
  },
  "min_20m": {
   "gradient_pct": -5.472638838242148,
   "start_distance_m": 390.0,
   "end_distance_m": 410.0,
   "midpoint_distance_m": 400.0,
   "start_elevation_m": 175.12669747561313,
   "end_elevation_m": 174.0321697079647,
   "start_xy": [
    506491.7764831136,
    4492509.219309939
   ],
   "end_xy": [
    506499.8659253613,
    4492526.871667394
   ]
  },
  "min_25m": {
   "gradient_pct": -5.265197861780052,
   "start_distance_m": 390.0,
   "end_distance_m": 415.0,
   "midpoint_distance_m": 402.5,
   "start_elevation_m": 175.12669747561313,
   "end_elevation_m": 173.81039801016811,
   "start_xy": [
    506491.7764831136,
    4492509.219309939
   ],
   "end_xy": [
    506504.0220854623,
    4492529.530854316
   ]
  },
  "min_50m": {
   "gradient_pct": -4.609864256353774,
   "start_distance_m": 384.0,
   "end_distance_m": 434.0,
   "midpoint_distance_m": 409.0,
   "start_elevation_m": 175.3592941278705,
   "end_elevation_m": 173.0543619996936,
   "start_xy": [
    506490.1642149266,
    4492503.452533408
   ],
   "end_xy": [
    506522.310486772,
    4492533.343465008
   ]
  },
  "min_100m": {
   "gradient_pct": -3.707095193164605,
   "start_distance_m": 384.0,
   "end_distance_m": 484.0,
   "midpoint_distance_m": 434.0,
   "start_elevation_m": 175.3592941278705,
   "end_elevation_m": 171.6521989347059,
   "start_xy": [
    506490.1642149266,
    4492503.452533408
   ],
   "end_xy": [
    506572.2312809883,
    4492532.865136882
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.263876768811656,
   "start_distance_m": 227.0,
   "end_distance_m": 229.0,
   "midpoint_distance_m": 228.0,
   "start_elevation_m": 155.952519150562,
   "end_elevation_m": 156.47779668593824,
   "start_xy": [
    506525.7668663828,
    4492362.999187311
   ],
   "end_xy": [
    506525.15867801005,
    4492364.904471254
   ]
  },
  "max_3m": {
   "gradient_pct": 25.847434501193334,
   "start_distance_m": 226.0,
   "end_distance_m": 229.0,
   "midpoint_distance_m": 227.5,
   "start_elevation_m": 155.70237365090244,
   "end_elevation_m": 156.47779668593824,
   "start_xy": [
    506526.07096056914,
    4492362.04654534
   ],
   "end_xy": [
    506525.15867801005,
    4492364.904471254
   ]
  }
 },
 "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": 0.296,
   "obstruction_max_height_m": 30.29,
   "flagged_windows_m": [
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "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_x50y450_NJ_NW_New_Jersey_6_County_Lidar_2017_B17.tif"
  ],
  "calculated_at": "2026-09-06T02:06:53+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": [
   "x50y450"
  ],
  "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": 0.985,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Franklin",
  "county": "New Jersey"
 }
}