{
 "ocl_version": "0.1.0",
 "name": "Elizabeth Street",
 "slug": "elizabeth-street-3-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.07106043540739,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 218.0,
   "end_distance_m": 220.0,
   "start_elevation_m": 298.7614903288999,
   "end_elevation_m": 299.2829115376081,
   "min_gradient_pct": -147.40403692434256,
   "suppressed_max_gradient_pct": 96.06827709435493,
   "suppressed_location_m": [
    53.0,
    55.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.13923554256697,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 218.0,
   "end_distance_m": 221.0,
   "start_elevation_m": 298.7614903288999,
   "end_elevation_m": 299.51566739517693,
   "min_gradient_pct": -134.969626368517,
   "suppressed_max_gradient_pct": 95.31230571758063,
   "suppressed_location_m": [
    52.0,
    55.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.137896781365953,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 217.0,
   "end_distance_m": 222.0,
   "start_elevation_m": 298.5308961088657,
   "end_elevation_m": 299.737790947934,
   "min_gradient_pct": -95.73424916931117,
   "suppressed_max_gradient_pct": 94.7076268055855,
   "suppressed_location_m": [
    51.0,
    56.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.016569094841657,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 215.0,
   "end_distance_m": 225.0,
   "start_elevation_m": 298.09707823465254,
   "end_elevation_m": 300.3987351441367,
   "min_gradient_pct": -55.32366773533454,
   "suppressed_max_gradient_pct": 87.73393919017849,
   "suppressed_location_m": [
    47.0,
    57.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.813123248482782,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 215.0,
   "end_distance_m": 235.0,
   "start_elevation_m": 298.09707823465254,
   "end_elevation_m": 302.4597028843491,
   "min_gradient_pct": -31.457177472977094,
   "suppressed_max_gradient_pct": 49.581154981175644,
   "suppressed_location_m": [
    46.0,
    66.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.59003887309359,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 214.0,
   "end_distance_m": 239.0,
   "start_elevation_m": 297.90486371290484,
   "end_elevation_m": 303.30237343117824,
   "min_gradient_pct": -25.1562746591635,
   "suppressed_max_gradient_pct": 40.510472403695076,
   "suppressed_location_m": [
    46.0,
    71.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.12667396637937,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 250.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 305.17764261119095,
   "end_elevation_m": 315.74097959438063,
   "min_gradient_pct": -7.377830424353647,
   "suppressed_max_gradient_pct": 22.779176162318777,
   "suppressed_location_m": [
    46.0,
    96.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.224905387775266,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 210.0,
   "end_distance_m": 310.0,
   "start_elevation_m": 297.2398297420965,
   "end_elevation_m": 317.46473512987177,
   "min_gradient_pct": 2.1317105113655543
  }
 ],
 "shape": {
  "ascent_concentration": 0.358,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 210.0,
  "shape_class": "sustained"
 },
 "length_m": 1103.9881290324415,
 "start_elevation_m": 284.5464647746166,
 "end_elevation_m": 391.14324565786745,
 "endpoint_gain_m": 106.59678088325086,
 "overall_gradient_pct": 9.65560933854194,
 "accumulated_ascent_m": 113.15306812019628,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.137896781365953,
   "start_distance_m": 217.0,
   "end_distance_m": 222.0,
   "midpoint_distance_m": 219.5,
   "start_elevation_m": 298.5308961088657,
   "end_elevation_m": 299.737790947934,
   "start_xy": [
    483039.3258947026,
    4597280.337766051
   ],
   "end_xy": [
    483040.320533804,
    4597285.237836771
   ]
  },
  "max_10m": {
   "gradient_pct": 23.016569094841657,
   "start_distance_m": 215.0,
   "end_distance_m": 225.0,
   "midpoint_distance_m": 220.0,
   "start_elevation_m": 298.09707823465254,
   "end_elevation_m": 300.3987351441367,
   "start_xy": [
    483038.928039062,
    4597278.377737763
   ],
   "end_xy": [
    483040.9173172649,
    4597288.177879202
   ]
  },
  "max_20m": {
   "gradient_pct": 21.813123248482782,
   "start_distance_m": 215.0,
   "end_distance_m": 235.0,
   "midpoint_distance_m": 225.0,
   "start_elevation_m": 298.09707823465254,
   "end_elevation_m": 302.4597028843491,
   "start_xy": [
    483038.928039062,
    4597278.377737763
   ],
   "end_xy": [
    483043.39415204216,
    4597297.859266855
   ]
  },
  "max_25m": {
   "gradient_pct": 21.59003887309359,
   "start_distance_m": 214.0,
   "end_distance_m": 239.0,
   "midpoint_distance_m": 226.5,
   "start_elevation_m": 297.90486371290484,
   "end_elevation_m": 303.30237343117824,
   "start_xy": [
    483038.7291112417,
    4597277.397723619
   ],
   "end_xy": [
    483044.58073670854,
    4597301.673477613
   ]
  },
  "max_50m": {
   "gradient_pct": 21.12667396637937,
   "start_distance_m": 250.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 275.0,
   "start_elevation_m": 305.17764261119095,
   "end_elevation_m": 315.74097959438063,
   "start_xy": [
    483049.0215100325,
    4597311.737250877
   ],
   "end_xy": [
    483072.6300505879,
    4597355.472415124
   ]
  },
  "max_100m": {
   "gradient_pct": 20.224905387775266,
   "start_distance_m": 210.0,
   "end_distance_m": 310.0,
   "midpoint_distance_m": 260.0,
   "start_elevation_m": 297.2398297420965,
   "end_elevation_m": 317.46473512987177,
   "start_xy": [
    483037.9333999606,
    4597273.477667043
   ],
   "end_xy": [
    483078.9588288782,
    4597363.214931856
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -95.73424916931117,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 284.5464647746166,
   "end_elevation_m": 279.75975231615104,
   "start_xy": [
    482894.618,
    4597120.958
   ],
   "end_xy": [
    482898.15301276103,
    4597124.494054974
   ]
  },
  "min_10m": {
   "gradient_pct": -55.32366773533454,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 284.5464647746166,
   "end_elevation_m": 279.01409800108314,
   "start_xy": [
    482894.618,
    4597120.958
   ],
   "end_xy": [
    482901.68802552205,
    4597128.030109948
   ]
  },
  "min_20m": {
   "gradient_pct": -31.457177472977094,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 284.5464647746166,
   "end_elevation_m": 278.2550292800212,
   "start_xy": [
    482894.618,
    4597120.958
   ],
   "end_xy": [
    482908.758051044,
    4597135.102219895
   ]
  },
  "min_25m": {
   "gradient_pct": -25.1562746591635,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 284.5464647746166,
   "end_elevation_m": 278.2573961098257,
   "start_xy": [
    482894.618,
    4597120.958
   ],
   "end_xy": [
    482912.29306380503,
    4597138.63827487
   ]
  },
  "min_50m": {
   "gradient_pct": -7.377830424353647,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 284.5464647746166,
   "end_elevation_m": 280.8575495624398,
   "start_xy": [
    482894.618,
    4597120.958
   ],
   "end_xy": [
    482929.9681276101,
    4597156.31854974
   ]
  },
  "min_100m": {
   "gradient_pct": 2.1317105113655543,
   "start_distance_m": 1003.0,
   "end_distance_m": 1103.0,
   "midpoint_distance_m": 1053.0,
   "start_elevation_m": 389.0077416802304,
   "end_elevation_m": 391.139452191596,
   "start_xy": [
    483560.997193899,
    4597860.8603873635
   ],
   "end_xy": [
    483630.23484269093,
    4597933.01402892
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.07106043540739,
   "start_distance_m": 218.0,
   "end_distance_m": 220.0,
   "midpoint_distance_m": 219.0,
   "start_elevation_m": 298.7614903288999,
   "end_elevation_m": 299.2829115376081,
   "start_xy": [
    483039.5248225229,
    4597281.317780195
   ],
   "end_xy": [
    483039.92267816345,
    4597283.277808483
   ]
  },
  "max_3m": {
   "gradient_pct": 25.13923554256697,
   "start_distance_m": 218.0,
   "end_distance_m": 221.0,
   "midpoint_distance_m": 219.5,
   "start_elevation_m": 298.7614903288999,
   "end_elevation_m": 299.51566739517693,
   "start_xy": [
    483039.5248225229,
    4597281.317780195
   ],
   "end_xy": [
    483040.12160598376,
    4597284.257822626
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.081,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    88.0
   ]
  ],
  "review": [],
  "extent": [
   "descends_at_start"
  ]
 },
 "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_1M_18_x48y460_PA_Northcentral_2019_B19.tif"
  ],
  "calculated_at": "2026-09-07T15:44:22+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-band4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "pa-run4-260907",
  "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_Northcentral_2019_B19 (collected 2019)",
  "elevation_tile_ids": [
   "x48y460"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_Northcentral_2019_B19: HTTP Error 404: Not Found",
  "mask_basin_extension_m": 26.0,
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Texas",
  "county": "Pennsylvania"
 }
}