{
 "ocl_version": "0.1.0",
 "name": "Valley View Avenue",
 "slug": "valley-view-avenue",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.52051109277511,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 127.0,
   "end_distance_m": 129.0,
   "start_elevation_m": 65.22436188614128,
   "end_elevation_m": 65.69477210799678,
   "min_gradient_pct": 0.3231705262834339
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.313711629456673,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 127.0,
   "end_distance_m": 130.0,
   "start_elevation_m": 65.22436188614128,
   "end_elevation_m": 65.92377323502498,
   "min_gradient_pct": 0.5863217517765899
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.67619310085479,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 126.0,
   "end_distance_m": 131.0,
   "start_elevation_m": 65.00697442238629,
   "end_elevation_m": 66.14078407742903,
   "min_gradient_pct": 1.6544090273373513
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.13320475459028,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 148.0,
   "end_distance_m": 158.0,
   "start_elevation_m": 69.64541626510432,
   "end_elevation_m": 71.85873674056334,
   "min_gradient_pct": 2.4831031982212437
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.506108319891055,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 123.0,
   "end_distance_m": 143.0,
   "start_elevation_m": 64.36327791660554,
   "end_elevation_m": 68.66449958058375,
   "min_gradient_pct": 3.2127730578049807
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.218930020438307,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 118.0,
   "end_distance_m": 143.0,
   "start_elevation_m": 63.359767075474174,
   "end_elevation_m": 68.66449958058375,
   "min_gradient_pct": 3.2966064740388674
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.134123717690983,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 121.0,
   "end_distance_m": 171.0,
   "start_elevation_m": 63.956772946429766,
   "end_elevation_m": 74.52383480527526,
   "min_gradient_pct": 4.666898732075197
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.151138910117282,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 81.0,
   "end_distance_m": 181.0,
   "start_elevation_m": 56.27103213206232,
   "end_elevation_m": 76.4221710421796,
   "min_gradient_pct": 9.856516420498764
  }
 ],
 "shape": {
  "ascent_concentration": 0.374,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 177.0,
  "shape_class": "sustained"
 },
 "length_m": 263.99999999999187,
 "start_elevation_m": 46.33770776414819,
 "end_elevation_m": 82.92513777990763,
 "endpoint_gain_m": 36.58743001575944,
 "overall_gradient_pct": 13.85887500596991,
 "accumulated_ascent_m": 36.58891563093466,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.67619310085479,
   "start_distance_m": 126.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 128.5,
   "start_elevation_m": 65.00697442238629,
   "end_elevation_m": 66.14078407742903,
   "start_xy": [
    492102.4625111995,
    4491135.822122537
   ],
   "end_xy": [
    492107.43463003397,
    4491135.294832961
   ]
  },
  "max_10m": {
   "gradient_pct": 22.13320475459028,
   "start_distance_m": 148.0,
   "end_distance_m": 158.0,
   "midpoint_distance_m": 153.0,
   "start_elevation_m": 69.64541626510432,
   "end_elevation_m": 71.85873674056334,
   "start_xy": [
    492124.13982308767,
    4491132.456481057
   ],
   "end_xy": [
    492133.3659336604,
    4491128.599165449
   ]
  },
  "max_20m": {
   "gradient_pct": 21.506108319891055,
   "start_distance_m": 123.0,
   "end_distance_m": 143.0,
   "midpoint_distance_m": 133.0,
   "start_elevation_m": 64.36327791660554,
   "end_elevation_m": 68.66449958058375,
   "start_xy": [
    492099.4792398989,
    4491136.138496282
   ],
   "end_xy": [
    492119.3171709964,
    4491133.683083468
   ]
  },
  "max_25m": {
   "gradient_pct": 21.218930020438307,
   "start_distance_m": 118.0,
   "end_distance_m": 143.0,
   "midpoint_distance_m": 130.5,
   "start_elevation_m": 63.359767075474174,
   "end_elevation_m": 68.66449958058375,
   "start_xy": [
    492094.5071210645,
    4491136.6657858575
   ],
   "end_xy": [
    492119.3171709964,
    4491133.683083468
   ]
  },
  "max_50m": {
   "gradient_pct": 21.134123717690983,
   "start_distance_m": 121.0,
   "end_distance_m": 171.0,
   "midpoint_distance_m": 146.0,
   "start_elevation_m": 63.956772946429766,
   "end_elevation_m": 74.52383480527526,
   "start_xy": [
    492097.49039236514,
    4491136.3494121125
   ],
   "end_xy": [
    492141.2302035615,
    4491118.3017720645
   ]
  },
  "max_100m": {
   "gradient_pct": 20.151138910117282,
   "start_distance_m": 81.0,
   "end_distance_m": 181.0,
   "midpoint_distance_m": 131.0,
   "start_elevation_m": 56.27103213206232,
   "end_elevation_m": 76.4221710421796,
   "start_xy": [
    492057.7132394025,
    4491140.565820355
   ],
   "end_xy": [
    492144.85676136176,
    4491108.997965111
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.6544090273373513,
   "start_distance_m": 259.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 261.5,
   "start_elevation_m": 82.84241732854076,
   "end_elevation_m": 82.92513777990763,
   "start_xy": [
    492177.95940955036,
    4491038.426259991
   ],
   "end_xy": [
    492180.58912890527,
    4491034.178909658
   ]
  },
  "min_10m": {
   "gradient_pct": 2.4831031982212437,
   "start_distance_m": 254.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 259.0,
   "start_elevation_m": 82.6768274600855,
   "end_elevation_m": 82.92513777990763,
   "start_xy": [
    492175.58767307387,
    4491042.827948994
   ],
   "end_xy": [
    492180.58912890527,
    4491034.178909658
   ]
  },
  "min_20m": {
   "gradient_pct": 3.2127730578049807,
   "start_distance_m": 244.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 254.0,
   "start_elevation_m": 82.28258316834663,
   "end_elevation_m": 82.92513777990763,
   "start_xy": [
    492170.8442001208,
    4491051.631327001
   ],
   "end_xy": [
    492180.58912890527,
    4491034.178909658
   ]
  },
  "min_25m": {
   "gradient_pct": 3.2966064740388674,
   "start_distance_m": 239.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 251.5,
   "start_elevation_m": 82.10098616139791,
   "end_elevation_m": 82.92513777990763,
   "start_xy": [
    492168.4724636443,
    4491056.0330160055
   ],
   "end_xy": [
    492180.58912890527,
    4491034.178909658
   ]
  },
  "min_50m": {
   "gradient_pct": 4.666898732075197,
   "start_distance_m": 214.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 239.0,
   "start_elevation_m": 80.59168841387003,
   "end_elevation_m": 82.92513777990763,
   "start_xy": [
    492158.20890999545,
    4491078.819898859
   ],
   "end_xy": [
    492180.58912890527,
    4491034.178909658
   ]
  },
  "min_100m": {
   "gradient_pct": 9.856516420498764,
   "start_distance_m": 164.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 214.0,
   "start_elevation_m": 73.06862135940887,
   "end_elevation_m": 82.92513777990763,
   "start_xy": [
    492137.1414336879,
    4491123.982900229
   ],
   "end_xy": [
    492180.58912890527,
    4491034.178909658
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.52051109277511,
   "start_distance_m": 127.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 128.0,
   "start_elevation_m": 65.22436188614128,
   "end_elevation_m": 65.69477210799678,
   "start_xy": [
    492103.45693496644,
    4491135.716664622
   ],
   "end_xy": [
    492105.4457825002,
    4491135.505748791
   ]
  },
  "max_3m": {
   "gradient_pct": 23.313711629456673,
   "start_distance_m": 127.0,
   "end_distance_m": 130.0,
   "midpoint_distance_m": 128.5,
   "start_elevation_m": 65.22436188614128,
   "end_elevation_m": 65.92377323502498,
   "start_xy": [
    492103.45693496644,
    4491135.716664622
   ],
   "end_xy": [
    492106.44020626706,
    4491135.400290876
   ]
  }
 },
 "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": 0.257,
   "obstruction_max_height_m": 20.1,
   "flagged_windows_m": [
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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_x49y450_NJ_NW_New_Jersey_6_County_Lidar_2017_B17.tif"
  ],
  "calculated_at": "2026-09-06T02:34:42+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": [
   "x49y450"
  ],
  "route_summit_trim_m": 114.7,
  "route_summit_trim_loss_m": 9.9,
  "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": "Milford",
  "county": "New Jersey"
 }
}