{
 "ocl_version": "0.1.0",
 "name": "1st Street",
 "slug": "1st-street-11",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 20.853765429123428,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 422.0,
   "end_distance_m": 424.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 266.2303898389605,
   "min_gradient_pct": -5.216032224595324,
   "suppressed_max_gradient_pct": 23.767736283321028,
   "suppressed_location_m": [
    855.0,
    857.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 20.54037978501621,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 422.0,
   "end_distance_m": 425.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 266.4295259239285,
   "min_gradient_pct": -4.996846133710164,
   "suppressed_max_gradient_pct": 23.573022915851045,
   "suppressed_location_m": [
    854.0,
    857.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.353878871961797,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 422.0,
   "end_distance_m": 427.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 266.8310084739761,
   "min_gradient_pct": -4.539891460449894,
   "suppressed_max_gradient_pct": 23.36309371700395,
   "suppressed_location_m": [
    852.0,
    857.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.16708553771707,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 422.0,
   "end_distance_m": 432.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 267.83002308414973,
   "min_gradient_pct": -3.8692129929054886,
   "suppressed_max_gradient_pct": 23.191540633514478,
   "suppressed_location_m": [
    848.0,
    858.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.940065006914267,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 422.0,
   "end_distance_m": 442.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 269.8013275317609,
   "min_gradient_pct": -2.451929639090906,
   "suppressed_max_gradient_pct": 22.833629084491065,
   "suppressed_location_m": [
    843.0,
    863.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.859436531722395,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 422.0,
   "end_distance_m": 447.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 270.7781736633086,
   "min_gradient_pct": -1.7264507243818343,
   "suppressed_max_gradient_pct": 22.708637889693364,
   "suppressed_location_m": [
    839.0,
    864.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.6882340111016,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 421.0,
   "end_distance_m": 471.0,
   "start_elevation_m": 265.6223000467585,
   "end_elevation_m": 275.4664170523093,
   "min_gradient_pct": -0.11697581471946705,
   "suppressed_max_gradient_pct": 21.853184206781066,
   "suppressed_location_m": [
    815.0,
    865.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.58407112796425,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 378.0,
   "end_distance_m": 478.0,
   "start_elevation_m": 261.0447059722555,
   "end_elevation_m": 276.62877710021974,
   "min_gradient_pct": 0.05069456225993463
  }
 ],
 "shape": {
  "ascent_concentration": 0.459,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 79.0,
  "shape_class": "stepped"
 },
 "length_m": 870.2189665639995,
 "start_elevation_m": 242.42170960715185,
 "end_elevation_m": 302.83150222028326,
 "endpoint_gain_m": 60.4097926131314,
 "overall_gradient_pct": 6.941907144549534,
 "accumulated_ascent_m": 61.11544161119704,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.353878871961797,
   "start_distance_m": 422.0,
   "end_distance_m": 427.0,
   "midpoint_distance_m": 424.5,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 266.8310084739761,
   "start_xy": [
    605381.5670541289,
    4470742.272256459
   ],
   "end_xy": [
    605386.2935045933,
    4470740.641103068
   ]
  },
  "max_10m": {
   "gradient_pct": 20.16708553771707,
   "start_distance_m": 422.0,
   "end_distance_m": 432.0,
   "midpoint_distance_m": 427.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 267.83002308414973,
   "start_xy": [
    605381.5670541289,
    4470742.272256459
   ],
   "end_xy": [
    605391.0200604124,
    4470739.010254292
   ]
  },
  "max_20m": {
   "gradient_pct": 19.940065006914267,
   "start_distance_m": 422.0,
   "end_distance_m": 442.0,
   "midpoint_distance_m": 432.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 269.8013275317609,
   "start_xy": [
    605381.5670541289,
    4470742.272256459
   ],
   "end_xy": [
    605400.4730664043,
    4470735.748252224
   ]
  },
  "max_25m": {
   "gradient_pct": 19.859436531722395,
   "start_distance_m": 422.0,
   "end_distance_m": 447.0,
   "midpoint_distance_m": 434.5,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 270.7781736633086,
   "start_xy": [
    605381.5670541289,
    4470742.272256459
   ],
   "end_xy": [
    605405.1995171618,
    4470734.117098737
   ]
  },
  "max_50m": {
   "gradient_pct": 19.6882340111016,
   "start_distance_m": 421.0,
   "end_distance_m": 471.0,
   "midpoint_distance_m": 446.0,
   "start_elevation_m": 265.6223000467585,
   "end_elevation_m": 275.4664170523093,
   "start_xy": [
    605380.6220307425,
    4470742.599259203
   ],
   "end_xy": [
    605427.8866488474,
    4470726.288053357
   ]
  },
  "max_100m": {
   "gradient_pct": 15.58407112796425,
   "start_distance_m": 378.0,
   "end_distance_m": 478.0,
   "midpoint_distance_m": 428.0,
   "start_elevation_m": 261.0447059722555,
   "end_elevation_m": 276.62877710021974,
   "start_xy": [
    605340.0454645331,
    4470756.830064524
   ],
   "end_xy": [
    605434.5035571768,
    4470724.0040849475
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.539891460449894,
   "start_distance_m": 62.0,
   "end_distance_m": 67.0,
   "midpoint_distance_m": 64.5,
   "start_elevation_m": 245.53061900409705,
   "end_elevation_m": 245.30362443107455,
   "start_xy": [
    605040.683827284,
    4470857.886253961
   ],
   "end_xy": [
    605045.3844279931,
    4470856.18203877
   ]
  },
  "min_10m": {
   "gradient_pct": -3.8692129929054886,
   "start_distance_m": 58.0,
   "end_distance_m": 68.0,
   "midpoint_distance_m": 63.0,
   "start_elevation_m": 245.6582741645943,
   "end_elevation_m": 245.27135286530375,
   "start_xy": [
    605036.9032812766,
    4470859.19130977
   ],
   "end_xy": [
    605046.3249175142,
    4470855.842216093
   ]
  },
  "min_20m": {
   "gradient_pct": -2.451929639090906,
   "start_distance_m": 54.0,
   "end_distance_m": 74.0,
   "midpoint_distance_m": 64.0,
   "start_elevation_m": 245.69591571507448,
   "end_elevation_m": 245.2055297872563,
   "start_xy": [
    605033.0929483431,
    4470860.4084215155
   ],
   "end_xy": [
    605051.9655732869,
    4470853.796978201
   ]
  },
  "min_25m": {
   "gradient_pct": -1.7264507243818343,
   "start_distance_m": 52.0,
   "end_distance_m": 77.0,
   "midpoint_distance_m": 64.5,
   "start_elevation_m": 245.6713122544182,
   "end_elevation_m": 245.23969957332275,
   "start_xy": [
    605031.1879255765,
    4470861.017427127
   ],
   "end_xy": [
    605054.785857332,
    4470852.774237925
   ]
  },
  "min_50m": {
   "gradient_pct": -0.11697581471946705,
   "start_distance_m": 735.0,
   "end_distance_m": 785.0,
   "midpoint_distance_m": 760.0,
   "start_elevation_m": 288.46184495391844,
   "end_elevation_m": 288.4033570465587,
   "start_xy": [
    605363.8169597123,
    4470485.646974237
   ],
   "end_xy": [
    605347.9150008323,
    4470438.243096821
   ]
  },
  "min_100m": {
   "gradient_pct": 0.05069456225993463,
   "start_distance_m": 685.0,
   "end_distance_m": 785.0,
   "midpoint_distance_m": 735.0,
   "start_elevation_m": 288.3526624842988,
   "end_elevation_m": 288.4033570465587,
   "start_xy": [
    605379.7189185924,
    4470533.050851653
   ],
   "end_xy": [
    605347.9150008323,
    4470438.243096821
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 20.853765429123428,
   "start_distance_m": 422.0,
   "end_distance_m": 424.0,
   "midpoint_distance_m": 423.0,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 266.2303898389605,
   "start_xy": [
    605381.5670541289,
    4470742.272256459
   ],
   "end_xy": [
    605383.4577156727,
    4470741.620030329
   ]
  },
  "max_3m": {
   "gradient_pct": 20.54037978501621,
   "start_distance_m": 422.0,
   "end_distance_m": 425.0,
   "midpoint_distance_m": 423.5,
   "start_elevation_m": 265.813314530378,
   "end_elevation_m": 266.4295259239285,
   "start_xy": [
    605381.5670541289,
    4470742.272256459
   ],
   "end_xy": [
    605384.4031517812,
    4470741.294222772
   ]
  }
 },
 "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": 0.067,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 839.0,
     "end_m": 864.0,
     "raw_pct": 22.71,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 843.0,
     "end_m": 863.0,
     "raw_pct": 22.83,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 811.0,
     "end_m": 836.0,
     "raw_pct": 20.34,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 816.0,
     "end_m": 836.0,
     "raw_pct": 20.98,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "excluded_ranges_m": [
   [
    809.0,
    866.0
   ]
  ],
  "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:26917",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/pa-west/USGS_1M_17_x60y448_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-12T01:13:50+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_WesternPA_2019_D20 (collected 2020)",
  "elevation_tile_ids": [
   "x60y448"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_WesternPA_2019_D20: HTTP Error 404: Not Found",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Trafford",
  "county": "Pennsylvania"
 }
}