{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (42.1945, -77.2049)",
 "slug": "discovered-lane-42-1945-77-2049",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.175807185717304,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 295.0,
   "end_distance_m": 297.0,
   "start_elevation_m": 423.0263744217471,
   "end_elevation_m": 423.54989056546145,
   "min_gradient_pct": -4.750863250933435
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.36501024223412,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 295.0,
   "end_distance_m": 298.0,
   "start_elevation_m": 423.0263744217471,
   "end_elevation_m": 423.78732472901413,
   "min_gradient_pct": -4.421236797062041
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.37879703035037,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 295.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 423.0263744217471,
   "end_elevation_m": 424.2453142732646,
   "min_gradient_pct": -3.5979958366226583
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.342920788283664,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 304.0,
   "end_distance_m": 314.0,
   "start_elevation_m": 424.8719208490043,
   "end_elevation_m": 427.0062129278327,
   "min_gradient_pct": -0.5783611542011613
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.028665052642452,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 293.0,
   "end_distance_m": 313.0,
   "start_elevation_m": 422.6409279379968,
   "end_elevation_m": 426.8466609485253,
   "min_gradient_pct": 2.501208072085319
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.00806411799249,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 291.0,
   "end_distance_m": 316.0,
   "start_elevation_m": 422.32909634855315,
   "end_elevation_m": 427.3311123780513,
   "min_gradient_pct": 3.5793520478530354
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.925529885254264,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 267.0,
   "end_distance_m": 317.0,
   "start_elevation_m": 418.5405946517096,
   "end_elevation_m": 427.50335959433676,
   "min_gradient_pct": 6.430428674478776
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.383025222861647,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 217.0,
   "end_distance_m": 317.0,
   "start_elevation_m": 411.1203343714751,
   "end_elevation_m": 427.50335959433676,
   "min_gradient_pct": 8.192783770567758
  }
 ],
 "shape": {
  "ascent_concentration": 0.316,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 370.0,
  "shape_class": "sustained"
 },
 "length_m": 639.7755766133502,
 "start_elevation_m": 385.56849142382066,
 "end_elevation_m": 465.9966642680094,
 "endpoint_gain_m": 80.42817284418874,
 "overall_gradient_pct": 12.571310281948398,
 "accumulated_ascent_m": 80.62872442821373,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.37879703035037,
   "start_distance_m": 295.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 297.5,
   "start_elevation_m": 423.0263744217471,
   "end_elevation_m": 424.2453142732646,
   "start_xy": [
    317920.2455713922,
    4673703.311217201
   ],
   "end_xy": [
    317915.9802118271,
    4673700.702250398
   ]
  },
  "max_10m": {
   "gradient_pct": 21.342920788283664,
   "start_distance_m": 304.0,
   "end_distance_m": 314.0,
   "midpoint_distance_m": 309.0,
   "start_elevation_m": 424.8719208490043,
   "end_elevation_m": 427.0062129278327,
   "start_xy": [
    317912.567924175,
    4673698.6150769545
   ],
   "end_xy": [
    317904.03720504476,
    4673693.397143348
   ]
  },
  "max_20m": {
   "gradient_pct": 21.028665052642452,
   "start_distance_m": 293.0,
   "end_distance_m": 313.0,
   "midpoint_distance_m": 303.0,
   "start_elevation_m": 422.6409279379968,
   "end_elevation_m": 426.8466609485253,
   "start_xy": [
    317921.9517152182,
    4673704.354803922
   ],
   "end_xy": [
    317904.8902769578,
    4673693.918936709
   ]
  },
  "max_25m": {
   "gradient_pct": 20.00806411799249,
   "start_distance_m": 291.0,
   "end_distance_m": 316.0,
   "midpoint_distance_m": 303.5,
   "start_elevation_m": 422.32909634855315,
   "end_elevation_m": 427.3311123780513,
   "start_xy": [
    317923.65785904427,
    4673705.398390643
   ],
   "end_xy": [
    317902.33106121875,
    4673692.353556627
   ]
  },
  "max_50m": {
   "gradient_pct": 17.925529885254264,
   "start_distance_m": 267.0,
   "end_distance_m": 317.0,
   "midpoint_distance_m": 292.0,
   "start_elevation_m": 418.5405946517096,
   "end_elevation_m": 427.50335959433676,
   "start_xy": [
    317944.1315849567,
    4673717.921431299
   ],
   "end_xy": [
    317901.47798930574,
    4673691.831763267
   ]
  },
  "max_100m": {
   "gradient_pct": 16.383025222861647,
   "start_distance_m": 217.0,
   "end_distance_m": 317.0,
   "midpoint_distance_m": 267.0,
   "start_elevation_m": 411.1203343714751,
   "end_elevation_m": 427.50335959433676,
   "start_xy": [
    317986.2374740027,
    4673744.881924453
   ],
   "end_xy": [
    317901.47798930574,
    4673691.831763267
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.5979958366226583,
   "start_distance_m": 542.0,
   "end_distance_m": 547.0,
   "midpoint_distance_m": 544.5,
   "start_elevation_m": 456.4753319643132,
   "end_elevation_m": 456.2954321724821,
   "start_xy": [
    317694.0678014017,
    4673607.307538643
   ],
   "end_xy": [
    317696.4566156116,
    4673611.699982913
   ]
  },
  "min_10m": {
   "gradient_pct": -0.5783611542011613,
   "start_distance_m": 542.0,
   "end_distance_m": 552.0,
   "midpoint_distance_m": 547.0,
   "start_elevation_m": 456.4753319643132,
   "end_elevation_m": 456.4174958488931,
   "start_xy": [
    317694.0678014017,
    4673607.307538643
   ],
   "end_xy": [
    317698.8454298216,
    4673616.092427184
   ]
  },
  "min_20m": {
   "gradient_pct": 2.501208072085319,
   "start_distance_m": 542.0,
   "end_distance_m": 562.0,
   "midpoint_distance_m": 552.0,
   "start_elevation_m": 456.4753319643132,
   "end_elevation_m": 456.9755735787303,
   "start_xy": [
    317694.0678014017,
    4673607.307538643
   ],
   "end_xy": [
    317705.3030494367,
    4673623.577014884
   ]
  },
  "min_25m": {
   "gradient_pct": 3.5793520478530354,
   "start_distance_m": 541.0,
   "end_distance_m": 566.0,
   "midpoint_distance_m": 553.5,
   "start_elevation_m": 456.39061681222984,
   "end_elevation_m": 457.2854548241931,
   "start_xy": [
    317694.99186461203,
    4673607.547464806
   ],
   "end_xy": [
    317708.2255975157,
    4673626.308079278
   ]
  },
  "min_50m": {
   "gradient_pct": 6.430428674478776,
   "start_distance_m": 535.0,
   "end_distance_m": 585.0,
   "midpoint_distance_m": 560.0,
   "start_elevation_m": 455.81103797269003,
   "end_elevation_m": 459.0262523099294,
   "start_xy": [
    317700.76781583094,
    4673609.171776203
   ],
   "end_xy": [
    317722.10770089104,
    4673639.280635151
   ]
  },
  "min_100m": {
   "gradient_pct": 8.192783770567758,
   "start_distance_m": 492.0,
   "end_distance_m": 592.0,
   "midpoint_distance_m": 542.0,
   "start_elevation_m": 451.6073269751546,
   "end_elevation_m": 459.80011074572235,
   "start_xy": [
    317741.86782359896,
    4673621.713429364
   ],
   "end_xy": [
    317727.2221600293,
    4673644.059997842
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.175807185717304,
   "start_distance_m": 295.0,
   "end_distance_m": 297.0,
   "midpoint_distance_m": 296.0,
   "start_elevation_m": 423.0263744217471,
   "end_elevation_m": 423.54989056546145,
   "start_xy": [
    317920.2455713922,
    4673703.311217201
   ],
   "end_xy": [
    317918.5394275661,
    4673702.267630479
   ]
  },
  "max_3m": {
   "gradient_pct": 25.36501024223412,
   "start_distance_m": 295.0,
   "end_distance_m": 298.0,
   "midpoint_distance_m": 296.5,
   "start_elevation_m": 423.0263744217471,
   "end_elevation_m": 423.78732472901413,
   "start_xy": [
    317920.2455713922,
    4673703.311217201
   ],
   "end_xy": [
    317917.6863556531,
    4673701.7458371185
   ]
  }
 },
 "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": 0.803,
   "obstruction_max_height_m": 27.87,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "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/ny/USGS_1M_18_x31y468_NY_FEMAR2_Central_2018_D19.tif"
  ],
  "calculated_at": "2026-09-06T13:00:00+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-band1.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": [
   "x31y468"
  ],
  "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": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Campbell",
  "county": "New York"
 }
}