{
 "ocl_version": "0.1.0",
 "name": "North 7th Avenue",
 "slug": "north-7th-avenue",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 18.550987179744993,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 178.0,
   "end_distance_m": 180.0,
   "start_elevation_m": 351.91637954135905,
   "end_elevation_m": 352.28739928495395,
   "min_gradient_pct": -23.741808538682108,
   "suppressed_max_gradient_pct": 22.362430943243794,
   "suppressed_location_m": [
    199.0,
    201.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 18.30764764543839,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 178.0,
   "end_distance_m": 181.0,
   "start_elevation_m": 351.91637954135905,
   "end_elevation_m": 352.4656089707222,
   "min_gradient_pct": -22.808075875159755,
   "suppressed_max_gradient_pct": 22.023669332550828,
   "suppressed_location_m": [
    192.0,
    195.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 16.748559237345262,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 176.0,
   "end_distance_m": 181.0,
   "start_elevation_m": 351.62818100885494,
   "end_elevation_m": 352.4656089707222,
   "min_gradient_pct": -21.655452663489996,
   "suppressed_max_gradient_pct": 21.773693166546764,
   "suppressed_location_m": [
    192.0,
    197.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 15.500900521502103,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 212.0,
   "end_distance_m": 222.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 360.36486762691095,
   "min_gradient_pct": -19.403545385176244,
   "suppressed_max_gradient_pct": 21.625876511577644,
   "suppressed_location_m": [
    191.0,
    201.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 15.071308771117629,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 212.0,
   "end_distance_m": 232.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 361.82903932898427,
   "min_gradient_pct": -16.473635216528066,
   "suppressed_max_gradient_pct": 21.324719152862315,
   "suppressed_location_m": [
    184.0,
    204.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.657498599553492,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 212.0,
   "end_distance_m": 237.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 362.4791522246491,
   "min_gradient_pct": -15.741925050230293,
   "suppressed_max_gradient_pct": 21.015893420600378,
   "suppressed_location_m": [
    184.0,
    209.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.408631611798342,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 212.0,
   "end_distance_m": 262.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 366.0190933806599,
   "min_gradient_pct": -12.124185430318676,
   "suppressed_max_gradient_pct": 18.68005290052747,
   "suppressed_location_m": [
    176.0,
    226.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 12.225893787982045,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 212.0,
   "end_distance_m": 312.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 371.0406713627428,
   "min_gradient_pct": -2.984446787753427,
   "suppressed_max_gradient_pct": 16.048683090499992,
   "suppressed_location_m": [
    173.0,
    273.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.472,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 110.0,
  "shape_class": "stepped"
 },
 "length_m": 412.7577833651622,
 "start_elevation_m": 354.12453889460454,
 "end_elevation_m": 380.6744976312264,
 "endpoint_gain_m": 26.549958736621875,
 "overall_gradient_pct": 6.432333878761391,
 "accumulated_ascent_m": 34.699694819997035,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 16.748559237345262,
   "start_distance_m": 176.0,
   "end_distance_m": 181.0,
   "midpoint_distance_m": 178.5,
   "start_elevation_m": 351.62818100885494,
   "end_elevation_m": 352.4656089707222,
   "start_xy": [
    722284.318986302,
    4492335.548912119
   ],
   "end_xy": [
    722285.0900165171,
    4492340.489105283
   ]
  },
  "max_10m": {
   "gradient_pct": 15.500900521502103,
   "start_distance_m": 212.0,
   "end_distance_m": 222.0,
   "midpoint_distance_m": 217.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 360.36486762691095,
   "start_xy": [
    722289.8739602579,
    4492371.117746676
   ],
   "end_xy": [
    722291.4169969361,
    4492380.997980342
   ]
  },
  "max_20m": {
   "gradient_pct": 15.071308771117629,
   "start_distance_m": 212.0,
   "end_distance_m": 232.0,
   "midpoint_distance_m": 222.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 361.82903932898427,
   "start_xy": [
    722289.8739602579,
    4492371.117746676
   ],
   "end_xy": [
    722292.9600333639,
    4492390.878214048
   ]
  },
  "max_25m": {
   "gradient_pct": 14.657498599553492,
   "start_distance_m": 212.0,
   "end_distance_m": 237.0,
   "midpoint_distance_m": 224.5,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 362.4791522246491,
   "start_xy": [
    722289.8739602579,
    4492371.117746676
   ],
   "end_xy": [
    722293.7310638773,
    4492395.818407167
   ]
  },
  "max_50m": {
   "gradient_pct": 14.408631611798342,
   "start_distance_m": 212.0,
   "end_distance_m": 262.0,
   "midpoint_distance_m": 237.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 366.0190933806599,
   "start_xy": [
    722289.8739602579,
    4492371.117746676
   ],
   "end_xy": [
    722297.5870380612,
    4492420.519244185
   ]
  },
  "max_100m": {
   "gradient_pct": 12.225893787982045,
   "start_distance_m": 212.0,
   "end_distance_m": 312.0,
   "midpoint_distance_m": 262.0,
   "start_elevation_m": 358.81477757476074,
   "end_elevation_m": 371.0406713627428,
   "start_xy": [
    722289.8739602579,
    4492371.117746676
   ],
   "end_xy": [
    722304.7359312689,
    4492470.004509982
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -21.655452663489996,
   "start_distance_m": 2.0,
   "end_distance_m": 7.0,
   "midpoint_distance_m": 4.5,
   "start_elevation_m": 353.79145460995426,
   "end_elevation_m": 352.70868197677976,
   "start_xy": [
    722257.2619251469,
    4492163.665525931
   ],
   "end_xy": [
    722258.0410703669,
    4492168.604445658
   ]
  },
  "min_10m": {
   "gradient_pct": -19.403545385176244,
   "start_distance_m": 1.0,
   "end_distance_m": 11.0,
   "midpoint_distance_m": 6.0,
   "start_elevation_m": 353.98511444358456,
   "end_elevation_m": 352.04475990506694,
   "start_xy": [
    722257.1059625736,
    4492162.677762966
   ],
   "end_xy": [
    722258.6639449091,
    4492172.555651091
   ]
  },
  "min_20m": {
   "gradient_pct": -16.473635216528066,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 354.12453889460454,
   "end_elevation_m": 350.8298118512989,
   "start_xy": [
    722256.95,
    4492161.69
   ],
   "end_xy": [
    722260.0669404229,
    4492181.445622678
   ]
  },
  "min_25m": {
   "gradient_pct": -15.741925050230293,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 354.12453889460454,
   "end_elevation_m": 350.18905763204697,
   "start_xy": [
    722256.95,
    4492161.69
   ],
   "end_xy": [
    722260.8459315907,
    4492186.384566741
   ]
  },
  "min_50m": {
   "gradient_pct": -12.124185430318676,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 354.12453889460454,
   "end_elevation_m": 348.0624461794452,
   "start_xy": [
    722256.95,
    4492161.69
   ],
   "end_xy": [
    722264.7420172574,
    4492211.079109297
   ]
  },
  "min_100m": {
   "gradient_pct": -2.984446787753427,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 354.12453889460454,
   "end_elevation_m": 351.1400921068511,
   "start_xy": [
    722256.95,
    4492161.69
   ],
   "end_xy": [
    722272.5330587869,
    4492260.468372317
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 18.550987179744993,
   "start_distance_m": 178.0,
   "end_distance_m": 180.0,
   "midpoint_distance_m": 179.0,
   "start_elevation_m": 351.91637954135905,
   "end_elevation_m": 352.28739928495395,
   "start_xy": [
    722284.627007914,
    4492337.525050445
   ],
   "end_xy": [
    722284.9360056319,
    4492339.501036133
   ]
  },
  "max_3m": {
   "gradient_pct": 18.30764764543839,
   "start_distance_m": 178.0,
   "end_distance_m": 181.0,
   "midpoint_distance_m": 179.5,
   "start_elevation_m": 351.91637954135905,
   "end_elevation_m": 352.4656089707222,
   "start_xy": [
    722284.627007914,
    4492337.525050445
   ],
   "end_xy": [
    722285.0900165171,
    4492340.489105283
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.073,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 184.0,
     "end_m": 209.0,
     "raw_pct": 21.02,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 184.0,
     "end_m": 204.0,
     "raw_pct": 21.32,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "excluded_ranges_m": [
   [
    182.0,
    211.0
   ]
  ],
  "review": [],
  "extent": [
   "descends_at_start",
   "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:26917",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/pa-west/USGS_1M_17_x72y450_PA_Northcentral_2019_B19.tif"
  ],
  "calculated_at": "2026-09-12T01:17:25+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-us-pa/batch-usa-rchunk03.pbf",
  "osm_snapshot": "",
  "run_id": "texture-us-pa-260912",
  "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": [
   "x72y450"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_Northcentral_2019_B19: HTTP Error 404: Not Found",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Altoona",
  "county": "Pennsylvania"
 }
}