{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (41.3126, -75.8644)",
 "slug": "discovered-lane-41-3126-75-8644",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 21.698649711238716,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 243.0,
   "end_distance_m": 245.0,
   "start_elevation_m": 210.38726644259913,
   "end_elevation_m": 210.8212394368239,
   "min_gradient_pct": -1.1418171299624191
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.324501835073306,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 242.0,
   "end_distance_m": 245.0,
   "start_elevation_m": 210.1815043817717,
   "end_elevation_m": 210.8212394368239,
   "min_gradient_pct": -0.9151488223030432
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.032384307259804,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 242.0,
   "end_distance_m": 247.0,
   "start_elevation_m": 210.1815043817717,
   "end_elevation_m": 211.2331235971347,
   "min_gradient_pct": -0.3110644661290962
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.653191707099268,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 239.0,
   "end_distance_m": 249.0,
   "start_elevation_m": 209.56904248527485,
   "end_elevation_m": 211.63436165598478,
   "min_gradient_pct": 1.3350881361293432
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.241599237033228,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 239.0,
   "end_distance_m": 259.0,
   "start_elevation_m": 209.56904248527485,
   "end_elevation_m": 213.6173623326815,
   "min_gradient_pct": 4.32307212539925
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.164476776197716,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 238.0,
   "end_distance_m": 263.0,
   "start_elevation_m": 209.37425407361985,
   "end_elevation_m": 214.41537326766928,
   "min_gradient_pct": 5.262519585495966
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.739508005759433,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 216.0,
   "end_distance_m": 266.0,
   "start_elevation_m": 205.12594804449148,
   "end_elevation_m": 214.9957020473712,
   "min_gradient_pct": 9.606301659820701
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.110228885632466,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 203.0,
   "end_distance_m": 303.0,
   "start_elevation_m": 203.21737071387727,
   "end_elevation_m": 221.32759959950974,
   "min_gradient_pct": 13.761741181145767
  }
 ],
 "shape": {
  "ascent_concentration": 0.312,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 285.0,
  "shape_class": "sustained"
 },
 "length_m": 305.799999999959,
 "start_elevation_m": 174.3755742907698,
 "end_elevation_m": 221.62317651500666,
 "endpoint_gain_m": 47.24760222423686,
 "overall_gradient_pct": 15.450491244029818,
 "accumulated_ascent_m": 47.27505668890595,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.032384307259804,
   "start_distance_m": 242.0,
   "end_distance_m": 247.0,
   "midpoint_distance_m": 244.5,
   "start_elevation_m": 210.1815043817717,
   "end_elevation_m": 211.2331235971347,
   "start_xy": [
    427640.5377679681,
    4573826.416549412
   ],
   "end_xy": [
    427638.8000171797,
    4573831.104855627
   ]
  },
  "max_10m": {
   "gradient_pct": 20.653191707099268,
   "start_distance_m": 239.0,
   "end_distance_m": 249.0,
   "midpoint_distance_m": 244.0,
   "start_elevation_m": 209.56904248527485,
   "end_elevation_m": 211.63436165598478,
   "start_xy": [
    427641.58070207067,
    4573823.603670855
   ],
   "end_xy": [
    427638.1049066502,
    4573832.980174531
   ]
  },
  "max_20m": {
   "gradient_pct": 20.241599237033228,
   "start_distance_m": 239.0,
   "end_distance_m": 259.0,
   "midpoint_distance_m": 249.0,
   "start_elevation_m": 209.56904248527485,
   "end_elevation_m": 213.6173623326815,
   "start_xy": [
    427641.58070207067,
    4573823.603670855
   ],
   "end_xy": [
    427634.6299477279,
    4573842.356988446
   ]
  },
  "max_25m": {
   "gradient_pct": 20.164476776197716,
   "start_distance_m": 238.0,
   "end_distance_m": 263.0,
   "midpoint_distance_m": 250.5,
   "start_elevation_m": 209.37425407361985,
   "end_elevation_m": 214.41537326766928,
   "start_xy": [
    427641.92799544154,
    4573822.665914326
   ],
   "end_xy": [
    427633.23971970164,
    4573846.107623333
   ]
  },
  "max_50m": {
   "gradient_pct": 19.739508005759433,
   "start_distance_m": 216.0,
   "end_distance_m": 266.0,
   "midpoint_distance_m": 241.0,
   "start_elevation_m": 205.12594804449148,
   "end_elevation_m": 214.9957020473712,
   "start_xy": [
    427651.7524453652,
    4573803.013047644
   ],
   "end_xy": [
    427632.1686807939,
    4573848.909843923
   ]
  },
  "max_100m": {
   "gradient_pct": 18.110228885632466,
   "start_distance_m": 203.0,
   "end_distance_m": 303.0,
   "midpoint_distance_m": 253.0,
   "start_elevation_m": 203.21737071387727,
   "end_elevation_m": 221.32759959950974,
   "start_xy": [
    427659.5317466297,
    4573792.634796207
   ],
   "end_xy": [
    427612.36513504974,
    4573878.872593195
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.3110644661290962,
   "start_distance_m": 2.0,
   "end_distance_m": 7.0,
   "midpoint_distance_m": 4.5,
   "start_elevation_m": 174.4177560201211,
   "end_elevation_m": 174.40220279681463,
   "start_xy": [
    427824.817057793,
    4573692.682962345
   ],
   "end_xy": [
    427820.6300802998,
    4573695.415947522
   ]
  },
  "min_10m": {
   "gradient_pct": 1.3350881361293432,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 174.3755742907698,
   "end_elevation_m": 174.50908310438274,
   "start_xy": [
    427826.492,
    4573691.59
   ],
   "end_xy": [
    427818.1172889643,
    4573697.054811724
   ]
  },
  "min_20m": {
   "gradient_pct": 4.32307212539925,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 174.3755742907698,
   "end_elevation_m": 175.24018871584965,
   "start_xy": [
    427826.492,
    4573691.59
   ],
   "end_xy": [
    427809.3340072508,
    4573701.626634952
   ]
  },
  "min_25m": {
   "gradient_pct": 5.262519585495966,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 174.3755742907698,
   "end_elevation_m": 175.6912041871438,
   "start_xy": [
    427826.492,
    4573691.59
   ],
   "end_xy": [
    427804.4494370431,
    4573702.612646402
   ]
  },
  "min_50m": {
   "gradient_pct": 9.606301659820701,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 174.3755742907698,
   "end_elevation_m": 179.17872512068016,
   "start_xy": [
    427826.492,
    4573691.59
   ],
   "end_xy": [
    427779.5704698544,
    4573705.069649734
   ]
  },
  "min_100m": {
   "gradient_pct": 13.761741181145767,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 174.3755742907698,
   "end_elevation_m": 188.13731547191557,
   "start_xy": [
    427826.492,
    4573691.59
   ],
   "end_xy": [
    427732.4522305219,
    4573720.146410078
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 21.698649711238716,
   "start_distance_m": 243.0,
   "end_distance_m": 245.0,
   "midpoint_distance_m": 244.0,
   "start_elevation_m": 210.38726644259913,
   "end_elevation_m": 210.8212394368239,
   "start_xy": [
    427640.1907936433,
    4573827.3544240305
   ],
   "end_xy": [
    427639.49481542205,
    4573829.229421136
   ]
  },
  "max_3m": {
   "gradient_pct": 21.324501835073306,
   "start_distance_m": 242.0,
   "end_distance_m": 245.0,
   "midpoint_distance_m": 243.5,
   "start_elevation_m": 210.1815043817717,
   "end_elevation_m": 210.8212394368239,
   "start_xy": [
    427640.5377679681,
    4573826.416549412
   ],
   "end_xy": [
    427639.49481542205,
    4573829.229421136
   ]
  }
 },
 "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": {
  "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/pa/USGS_one_meter_x42y458_PA_LuzerneCounty_2018.tif"
  ],
  "calculated_at": "2026-09-08T16:27:05+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/pennsylvania-2026-09-07-batch.osm.pbf",
  "osm_snapshot": "2026-09-06T20:21:35Z",
  "run_id": "retro-box-260908",
  "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, PA_LuzerneCounty_2018 (collected 2018)",
  "elevation_tile_ids": [
   "x42y458"
  ],
  "route_cut_m": 305.8,
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: NY_FEMAR2_Central_B1_2018: no corridor points fetched",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "West Wyoming",
  "county": "Pennsylvania"
 }
}