{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (42.5914, -75.3441)",
 "slug": "discovered-lane-42-5914-75-3441",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.2518198156489,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1042.0,
   "end_distance_m": 1044.0,
   "start_elevation_m": 439.6057229517578,
   "end_elevation_m": 440.0907593480708,
   "min_gradient_pct": -11.519512653376296
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.826630125478232,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1041.0,
   "end_distance_m": 1044.0,
   "start_elevation_m": 439.37596044430643,
   "end_elevation_m": 440.0907593480708,
   "min_gradient_pct": -11.041758454734918
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.87793378220863,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1040.0,
   "end_distance_m": 1045.0,
   "start_elevation_m": 439.1262214670159,
   "end_elevation_m": 440.32011815612634,
   "min_gradient_pct": -10.421105503889976
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.870064569011674,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1037.0,
   "end_distance_m": 1047.0,
   "start_elevation_m": 438.46854514710935,
   "end_elevation_m": 440.7555516040105,
   "min_gradient_pct": -8.54537340834952
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.48862200902329,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1031.0,
   "end_distance_m": 1051.0,
   "start_elevation_m": 437.2460358169749,
   "end_elevation_m": 441.54376021877954,
   "min_gradient_pct": -7.839584929821513
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.421685913425108,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1026.0,
   "end_distance_m": 1051.0,
   "start_elevation_m": 436.43833874042326,
   "end_elevation_m": 441.54376021877954,
   "min_gradient_pct": -7.389350251222595
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.056353537963332,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 961.0,
   "end_distance_m": 1011.0,
   "start_elevation_m": 424.5794800870534,
   "end_elevation_m": 434.1076568560351,
   "min_gradient_pct": -3.2190813937263556
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.435740326675898,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 953.0,
   "end_distance_m": 1053.0,
   "start_elevation_m": 423.40537436915275,
   "end_elevation_m": 441.84111469582865,
   "min_gradient_pct": 4.56561457638486
  }
 ],
 "shape": {
  "ascent_concentration": 0.376,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 258.0,
  "shape_class": "sustained"
 },
 "length_m": 1210.8632881986232,
 "start_elevation_m": 337.55701755858934,
 "end_elevation_m": 453.04927932019314,
 "endpoint_gain_m": 115.4922617616038,
 "overall_gradient_pct": 9.53801002038961,
 "accumulated_ascent_m": 118.23814733093445,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.87793378220863,
   "start_distance_m": 1040.0,
   "end_distance_m": 1045.0,
   "midpoint_distance_m": 1042.5,
   "start_elevation_m": 439.1262214670159,
   "end_elevation_m": 440.32011815612634,
   "start_xy": [
    471406.308647431,
    4715412.548377846
   ],
   "end_xy": [
    471401.7273897847,
    4715410.545360528
   ]
  },
  "max_10m": {
   "gradient_pct": 22.870064569011674,
   "start_distance_m": 1037.0,
   "end_distance_m": 1047.0,
   "midpoint_distance_m": 1042.0,
   "start_elevation_m": 438.46854514710935,
   "end_elevation_m": 440.7555516040105,
   "start_xy": [
    471409.05740201887,
    4715413.750188237
   ],
   "end_xy": [
    471399.89488672616,
    4715409.7441536
   ]
  },
  "max_20m": {
   "gradient_pct": 21.48862200902329,
   "start_distance_m": 1031.0,
   "end_distance_m": 1051.0,
   "midpoint_distance_m": 1041.0,
   "start_elevation_m": 437.2460358169749,
   "end_elevation_m": 441.54376021877954,
   "start_xy": [
    471414.5549111945,
    4715416.153809019
   ],
   "end_xy": [
    471396.2298806091,
    4715408.141739746
   ]
  },
  "max_25m": {
   "gradient_pct": 20.421685913425108,
   "start_distance_m": 1026.0,
   "end_distance_m": 1051.0,
   "midpoint_distance_m": 1038.5,
   "start_elevation_m": 436.43833874042326,
   "end_elevation_m": 441.54376021877954,
   "start_xy": [
    471419.1361688408,
    4715418.156826338
   ],
   "end_xy": [
    471396.2298806091,
    4715408.141739746
   ]
  },
  "max_50m": {
   "gradient_pct": 19.056353537963332,
   "start_distance_m": 961.0,
   "end_distance_m": 1011.0,
   "midpoint_distance_m": 986.0,
   "start_elevation_m": 424.5794800870534,
   "end_elevation_m": 434.1076568560351,
   "start_xy": [
    471467.9035698476,
    4715460.657765189
   ],
   "end_xy": [
    471431.33554657205,
    4715426.704634436
   ]
  },
  "max_100m": {
   "gradient_pct": 18.435740326675898,
   "start_distance_m": 953.0,
   "end_distance_m": 1053.0,
   "midpoint_distance_m": 1003.0,
   "start_elevation_m": 423.40537436915275,
   "end_elevation_m": 441.84111469582865,
   "start_xy": [
    471473.4201385734,
    4715466.451269814
   ],
   "end_xy": [
    471394.39737755054,
    4715407.340532819
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -10.421105503889976,
   "start_distance_m": 1179.0,
   "end_distance_m": 1184.0,
   "midpoint_distance_m": 1181.5,
   "start_elevation_m": 455.19586984264083,
   "end_elevation_m": 454.67481456744633,
   "start_xy": [
    471271.0806156054,
    4715387.711712547
   ],
   "end_xy": [
    471267.1838536283,
    4715384.578783232
   ]
  },
  "min_10m": {
   "gradient_pct": -8.54537340834952,
   "start_distance_m": 1178.0,
   "end_distance_m": 1188.0,
   "midpoint_distance_m": 1183.0,
   "start_elevation_m": 455.26886422809923,
   "end_elevation_m": 454.4143268872643,
   "start_xy": [
    471271.8599680008,
    4715388.338298409
   ],
   "end_xy": [
    471264.0664440466,
    4715382.0724397795
   ]
  },
  "min_20m": {
   "gradient_pct": -7.839584929821513,
   "start_distance_m": 1178.0,
   "end_distance_m": 1198.0,
   "midpoint_distance_m": 1188.0,
   "start_elevation_m": 455.26886422809923,
   "end_elevation_m": 453.70094724213493,
   "start_xy": [
    471271.8599680008,
    4715388.338298409
   ],
   "end_xy": [
    471257.22800771677,
    4715374.916792294
   ]
  },
  "min_25m": {
   "gradient_pct": -7.389350251222595,
   "start_distance_m": 1178.0,
   "end_distance_m": 1203.0,
   "midpoint_distance_m": 1190.5,
   "start_elevation_m": 455.26886422809923,
   "end_elevation_m": 453.4215266652936,
   "start_xy": [
    471271.8599680008,
    4715388.338298409
   ],
   "end_xy": [
    471254.37842229055,
    4715370.808281262
   ]
  },
  "min_50m": {
   "gradient_pct": -3.2190813937263556,
   "start_distance_m": 1160.0,
   "end_distance_m": 1210.0,
   "midpoint_distance_m": 1185.0,
   "start_elevation_m": 454.6936755829712,
   "end_elevation_m": 453.084134886108,
   "start_xy": [
    471289.54103810806,
    4715391.251141094
   ],
   "end_xy": [
    471250.3890026939,
    4715365.056365818
   ]
  },
  "min_100m": {
   "gradient_pct": 4.56561457638486,
   "start_distance_m": 1110.0,
   "end_distance_m": 1210.0,
   "midpoint_distance_m": 1160.0,
   "start_elevation_m": 448.51852030972316,
   "end_elevation_m": 453.084134886108,
   "start_xy": [
    471339.4015697733,
    4715393.482901787
   ],
   "end_xy": [
    471250.3890026939,
    4715365.056365818
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.2518198156489,
   "start_distance_m": 1042.0,
   "end_distance_m": 1044.0,
   "midpoint_distance_m": 1043.0,
   "start_elevation_m": 439.6057229517578,
   "end_elevation_m": 440.0907593480708,
   "start_xy": [
    471404.4761443725,
    4715411.747170919
   ],
   "end_xy": [
    471402.64364131395,
    4715410.945963992
   ]
  },
  "max_3m": {
   "gradient_pct": 23.826630125478232,
   "start_distance_m": 1041.0,
   "end_distance_m": 1044.0,
   "midpoint_distance_m": 1042.5,
   "start_elevation_m": 439.37596044430643,
   "end_elevation_m": 440.0907593480708,
   "start_xy": [
    471405.3923959018,
    4715412.1477743825
   ],
   "end_xy": [
    471402.64364131395,
    4715410.945963992
   ]
  }
 },
 "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": 0.289,
   "obstruction_max_height_m": 24.18,
   "flagged_windows_m": [
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "descends_at_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/ny/USGS_1M_18_x47y472_NY_FEMAR2_Central_2018_D19.tif"
  ],
  "calculated_at": "2026-09-06T10:40:48+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-york-2026-09-06-batch-band2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ny-run3-260906",
  "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, NY_FEMAR2_Central_2018_D19 (collected 2018)",
  "elevation_tile_ids": [
   "x47y472"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_FEMAR2_Central_5_2018",
   "ept_crs": "EPSG:3857",
   "station_coverage": 0.999,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "New Berlin",
  "county": "New York"
 }
}