{
 "ocl_version": "0.1.0",
 "name": "Marietta Avenue",
 "slug": "marietta-avenue-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 9.754157261454566,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 995.0,
   "end_distance_m": 997.0,
   "start_elevation_m": 110.86113212637242,
   "end_elevation_m": 111.05621527160152,
   "min_gradient_pct": -6.107108910052972,
   "suppressed_max_gradient_pct": 54.27758300862351,
   "suppressed_location_m": [
    3.0,
    5.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 9.22532468757519,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 994.0,
   "end_distance_m": 997.0,
   "start_elevation_m": 110.77945553097426,
   "end_elevation_m": 111.05621527160152,
   "min_gradient_pct": -5.821541963835841,
   "suppressed_max_gradient_pct": 53.81743889990721,
   "suppressed_location_m": [
    3.0,
    6.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 8.519011273532726,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 994.0,
   "end_distance_m": 999.0,
   "start_elevation_m": 110.77945553097426,
   "end_elevation_m": 111.2054060946509,
   "min_gradient_pct": -5.485519788701936,
   "suppressed_max_gradient_pct": 53.134463618009136,
   "suppressed_location_m": [
    3.0,
    8.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 8.404052718622523,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 994.0,
   "end_distance_m": 1004.0,
   "start_elevation_m": 110.77945553097426,
   "end_elevation_m": 111.61986080283651,
   "min_gradient_pct": -5.311132941684491,
   "suppressed_max_gradient_pct": 48.94921510730882,
   "suppressed_location_m": [
    1.0,
    11.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 8.142104320946615,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 988.0,
   "end_distance_m": 1008.0,
   "start_elevation_m": 110.30429071608361,
   "end_elevation_m": 111.93271158027294,
   "min_gradient_pct": -5.117644135705817,
   "suppressed_max_gradient_pct": 27.922703658921506,
   "suppressed_location_m": [
    0.0,
    20.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 8.07814879432749,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 988.0,
   "end_distance_m": 1013.0,
   "start_elevation_m": 110.30429071608361,
   "end_elevation_m": 112.32382791466549,
   "min_gradient_pct": -5.105681997094962,
   "suppressed_max_gradient_pct": 22.898759436232066,
   "suppressed_location_m": [
    0.0,
    25.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 7.861289153573807,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 981.0,
   "end_distance_m": 1031.0,
   "start_elevation_m": 109.76829971164236,
   "end_elevation_m": 113.69894428842926,
   "min_gradient_pct": -4.960809337383552,
   "suppressed_max_gradient_pct": 14.007689557574793,
   "suppressed_location_m": [
    0.0,
    50.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 7.274695902063754,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 961.0,
   "end_distance_m": 1061.0,
   "start_elevation_m": 108.4757711074924,
   "end_elevation_m": 115.75046700955616,
   "min_gradient_pct": -3.9725917337148076,
   "suppressed_max_gradient_pct": 10.571258779569348,
   "suppressed_location_m": [
    0.0,
    100.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.489,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 19.0,
  "shape_class": "stepped"
 },
 "length_m": 1139.9986774680517,
 "start_elevation_m": 77.41162905957786,
 "end_elevation_m": 117.69107482224555,
 "endpoint_gain_m": 40.27944576266769,
 "overall_gradient_pct": 3.5332888150474644,
 "accumulated_ascent_m": 45.068981329196376,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 8.519011273532726,
   "start_distance_m": 994.0,
   "end_distance_m": 999.0,
   "midpoint_distance_m": 996.5,
   "start_elevation_m": 110.77945553097426,
   "end_elevation_m": 111.2054060946509,
   "start_xy": [
    371724.4409306305,
    4435655.54405968
   ],
   "end_xy": [
    371729.43061268906,
    4435655.865103419
   ]
  },
  "max_10m": {
   "gradient_pct": 8.404052718622523,
   "start_distance_m": 994.0,
   "end_distance_m": 1004.0,
   "midpoint_distance_m": 999.0,
   "start_elevation_m": 110.77945553097426,
   "end_elevation_m": 111.61986080283651,
   "start_xy": [
    371724.4409306305,
    4435655.54405968
   ],
   "end_xy": [
    371734.42036303063,
    4435656.1850901395
   ]
  },
  "max_20m": {
   "gradient_pct": 8.142104320946615,
   "start_distance_m": 988.0,
   "end_distance_m": 1008.0,
   "midpoint_distance_m": 998.0,
   "start_elevation_m": 110.30429071608361,
   "end_elevation_m": 111.93271158027294,
   "start_xy": [
    371718.453230008,
    4435655.1600788785
   ],
   "end_xy": [
    371738.4069815979,
    4435656.510085742
   ]
  },
  "max_25m": {
   "gradient_pct": 8.07814879432749,
   "start_distance_m": 988.0,
   "end_distance_m": 1013.0,
   "midpoint_distance_m": 1000.5,
   "start_elevation_m": 110.30429071608361,
   "end_elevation_m": 112.32382791466549,
   "start_xy": [
    371718.453230008,
    4435655.1600788785
   ],
   "end_xy": [
    371743.3882814185,
    4435656.942111931
   ]
  },
  "max_50m": {
   "gradient_pct": 7.861289153573807,
   "start_distance_m": 981.0,
   "end_distance_m": 1031.0,
   "midpoint_distance_m": 1006.0,
   "start_elevation_m": 109.76829971164236,
   "end_elevation_m": 113.69894428842926,
   "start_xy": [
    371711.4676436443,
    4435654.711105404
   ],
   "end_xy": [
    371761.32080873585,
    4435658.499156019
   ]
  },
  "max_100m": {
   "gradient_pct": 7.274695902063754,
   "start_distance_m": 961.0,
   "end_distance_m": 1061.0,
   "midpoint_distance_m": 1011.0,
   "start_elevation_m": 108.4757711074924,
   "end_elevation_m": 115.75046700955616,
   "start_xy": [
    371691.50424906466,
    4435653.5100575145
   ],
   "end_xy": [
    371791.1898051934,
    4435661.289186869
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.485519788701936,
   "start_distance_m": 702.0,
   "end_distance_m": 707.0,
   "midpoint_distance_m": 704.5,
   "start_elevation_m": 108.1546025815706,
   "end_elevation_m": 107.8803265921355,
   "start_xy": [
    371432.6287205754,
    4435655.981949408
   ],
   "end_xy": [
    371437.61869560403,
    4435655.665956786
   ]
  },
  "min_10m": {
   "gradient_pct": -5.311132941684491,
   "start_distance_m": 702.0,
   "end_distance_m": 712.0,
   "midpoint_distance_m": 707.0,
   "start_elevation_m": 108.1546025815706,
   "end_elevation_m": 107.62348928740215,
   "start_xy": [
    371432.6287205754,
    4435655.981949408
   ],
   "end_xy": [
    371442.6091977374,
    4435655.3579267915
   ]
  },
  "min_20m": {
   "gradient_pct": -5.117644135705817,
   "start_distance_m": 688.0,
   "end_distance_m": 708.0,
   "midpoint_distance_m": 698.0,
   "start_elevation_m": 108.85300259062488,
   "end_elevation_m": 107.82947376348372,
   "start_xy": [
    371418.6905661262,
    4435657.28291937
   ],
   "end_xy": [
    371438.6167715082,
    4435655.603952844
   ]
  },
  "min_25m": {
   "gradient_pct": -5.105681997094962,
   "start_distance_m": 686.0,
   "end_distance_m": 711.0,
   "midpoint_distance_m": 698.5,
   "start_elevation_m": 108.9465797851232,
   "end_elevation_m": 107.67015928584946,
   "start_xy": [
    371416.7106872964,
    4435657.565901417
   ],
   "end_xy": [
    371441.6111218071,
    4435655.419930308
   ]
  },
  "min_50m": {
   "gradient_pct": -4.960809337383552,
   "start_distance_m": 668.0,
   "end_distance_m": 718.0,
   "midpoint_distance_m": 693.0,
   "start_elevation_m": 109.82579061730279,
   "end_elevation_m": 107.34538594861101,
   "start_xy": [
    371398.9255673575,
    4435660.3289033305
   ],
   "end_xy": [
    371448.5998930571,
    4435655.02595709
   ]
  },
  "min_100m": {
   "gradient_pct": -3.9725917337148076,
   "start_distance_m": 652.0,
   "end_distance_m": 752.0,
   "midpoint_distance_m": 702.0,
   "start_elevation_m": 110.30624967655612,
   "end_elevation_m": 106.33365794284131,
   "start_xy": [
    371383.2716566079,
    4435663.615823274
   ],
   "end_xy": [
    371482.56737569784,
    4435653.579968359
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 9.754157261454566,
   "start_distance_m": 995.0,
   "end_distance_m": 997.0,
   "midpoint_distance_m": 996.0,
   "start_elevation_m": 110.86113212637242,
   "end_elevation_m": 111.05621527160152,
   "start_xy": [
    371725.4388807306,
    4435655.608056536
   ],
   "end_xy": [
    371727.4347767295,
    4435655.736115718
   ]
  },
  "max_3m": {
   "gradient_pct": 9.22532468757519,
   "start_distance_m": 994.0,
   "end_distance_m": 997.0,
   "midpoint_distance_m": 995.5,
   "start_elevation_m": 110.77945553097426,
   "end_elevation_m": 111.05621527160152,
   "start_xy": [
    371724.4409306305,
    4435655.54405968
   ],
   "end_xy": [
    371727.4347767295,
    4435655.736115718
   ]
  }
 },
 "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": 0.025,
   "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": 0.0,
     "end_m": 25.0,
     "raw_pct": 22.9,
     "reason": "staircase+edge-step"
    },
    {
     "window_m": 20.0,
     "start_m": 0.0,
     "end_m": 20.0,
     "raw_pct": 27.92,
     "reason": "staircase+edge-step"
    }
   ],
   "advisory": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    27.0
   ]
  ],
  "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/pa/USGS_1M_18_x37y444_PA_Northcentral_2019_B19.tif"
  ],
  "calculated_at": "2026-09-11T22:36:49+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-us-pa/batch-usa-rchunk01.pbf",
  "osm_snapshot": "",
  "run_id": "texture-us-pa-260911",
  "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": [
   "x37y444"
  ],
  "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": "West Hempfield",
  "county": "Pennsylvania"
 }
}