{
 "ocl_version": "0.1.0",
 "name": "Bossler Street",
 "slug": "bossler-street",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.29772731870139,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 283.0,
   "end_distance_m": 285.0,
   "start_elevation_m": 391.3597303849714,
   "end_elevation_m": 391.8656849313454,
   "min_gradient_pct": -0.5448489332508188
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.284364241046358,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 282.0,
   "end_distance_m": 285.0,
   "start_elevation_m": 391.107154004114,
   "end_elevation_m": 391.8656849313454,
   "min_gradient_pct": -0.48225490803777876
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.068876793520758,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 282.0,
   "end_distance_m": 287.0,
   "start_elevation_m": 391.107154004114,
   "end_elevation_m": 392.36059784379006,
   "min_gradient_pct": 0.4172374205779761
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.442967263935316,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 279.0,
   "end_distance_m": 289.0,
   "start_elevation_m": 390.40636852813947,
   "end_elevation_m": 392.850665254533,
   "min_gradient_pct": 2.6735650095798746
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.687863361132315,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 269.0,
   "end_distance_m": 289.0,
   "start_elevation_m": 388.11309258230654,
   "end_elevation_m": 392.850665254533,
   "min_gradient_pct": 3.53463772371839
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.32957720778336,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 265.0,
   "end_distance_m": 290.0,
   "start_elevation_m": 387.2462839819125,
   "end_elevation_m": 393.0786782838583,
   "min_gradient_pct": 3.504501181352225
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.874222031888735,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 245.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 383.6106040394362,
   "end_elevation_m": 394.0477150553806,
   "min_gradient_pct": 3.811014335867071
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.373102305700684,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 195.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 376.6746127496799,
   "end_elevation_m": 394.0477150553806,
   "min_gradient_pct": 4.721821628429893
  }
 ],
 "shape": {
  "ascent_concentration": 0.456,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 126.0,
  "shape_class": "stepped"
 },
 "length_m": 298.6815572698,
 "start_elevation_m": 363.5417894277346,
 "end_elevation_m": 394.50661899169995,
 "endpoint_gain_m": 30.96482956396534,
 "overall_gradient_pct": 10.367171594727797,
 "accumulated_ascent_m": 30.97929721120647,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.068876793520758,
   "start_distance_m": 282.0,
   "end_distance_m": 287.0,
   "midpoint_distance_m": 284.5,
   "start_elevation_m": 391.107154004114,
   "end_elevation_m": 392.36059784379006,
   "start_xy": [
    678085.0295462668,
    4463225.511537218
   ],
   "end_xy": [
    678089.2391214,
    4463222.813486588
   ]
  },
  "max_10m": {
   "gradient_pct": 24.442967263935316,
   "start_distance_m": 279.0,
   "end_distance_m": 289.0,
   "midpoint_distance_m": 284.0,
   "start_elevation_m": 390.40636852813947,
   "end_elevation_m": 392.850665254533,
   "start_xy": [
    678082.5038011869,
    4463227.130367595
   ],
   "end_xy": [
    678090.9229514532,
    4463221.734266337
   ]
  },
  "max_20m": {
   "gradient_pct": 23.687863361132315,
   "start_distance_m": 269.0,
   "end_distance_m": 289.0,
   "midpoint_distance_m": 279.0,
   "start_elevation_m": 388.11309258230654,
   "end_elevation_m": 392.850665254533,
   "start_xy": [
    678073.7613649669,
    4463231.963162081
   ],
   "end_xy": [
    678090.9229514532,
    4463221.734266337
   ]
  },
  "max_25m": {
   "gradient_pct": 23.32957720778336,
   "start_distance_m": 265.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 277.5,
   "start_elevation_m": 387.2462839819125,
   "end_elevation_m": 393.0786782838583,
   "start_xy": [
    678070.1988159992,
    4463233.782020199
   ],
   "end_xy": [
    678091.7648664799,
    4463221.194656211
   ]
  },
  "max_50m": {
   "gradient_pct": 20.874222031888735,
   "start_distance_m": 245.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 270.0,
   "start_elevation_m": 383.6106040394362,
   "end_elevation_m": 394.0477150553806,
   "start_xy": [
    678052.3860711615,
    4463242.876310789
   ],
   "end_xy": [
    678095.9744416132,
    4463218.496605582
   ]
  },
  "max_100m": {
   "gradient_pct": 17.373102305700684,
   "start_distance_m": 195.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 245.0,
   "start_elevation_m": 376.6746127496799,
   "end_elevation_m": 394.0477150553806,
   "start_xy": [
    678007.0672935077,
    4463263.888076825
   ],
   "end_xy": [
    678095.9744416132,
    4463218.496605582
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.4172374205779761,
   "start_distance_m": 93.0,
   "end_distance_m": 98.0,
   "midpoint_distance_m": 95.5,
   "start_elevation_m": 370.35041489217974,
   "end_elevation_m": 370.37127676320864,
   "start_xy": [
    677950.5693206881,
    4463205.686278789
   ],
   "end_xy": [
    677952.6751440279,
    4463210.221199743
   ]
  },
  "min_10m": {
   "gradient_pct": 2.6735650095798746,
   "start_distance_m": 92.0,
   "end_distance_m": 102.0,
   "midpoint_distance_m": 97.0,
   "start_elevation_m": 370.30048003414606,
   "end_elevation_m": 370.56783653510405,
   "start_xy": [
    677949.756898643,
    4463205.846989975
   ],
   "end_xy": [
    677954.3598026999,
    4463213.849136507
   ]
  },
  "min_20m": {
   "gradient_pct": 3.53463772371839,
   "start_distance_m": 93.0,
   "end_distance_m": 113.0,
   "midpoint_distance_m": 103.0,
   "start_elevation_m": 370.35041489217974,
   "end_elevation_m": 371.0573424369234,
   "start_xy": [
    677950.5693206881,
    4463205.686278789
   ],
   "end_xy": [
    677958.9926140475,
    4463223.825962607
   ]
  },
  "min_25m": {
   "gradient_pct": 3.504501181352225,
   "start_distance_m": 93.0,
   "end_distance_m": 118.0,
   "midpoint_distance_m": 105.5,
   "start_elevation_m": 370.35041489217974,
   "end_elevation_m": 371.2265401875178,
   "start_xy": [
    677950.5693206881,
    4463205.686278789
   ],
   "end_xy": [
    677961.0984373874,
    4463228.360883561
   ]
  },
  "min_50m": {
   "gradient_pct": 3.811014335867071,
   "start_distance_m": 93.0,
   "end_distance_m": 143.0,
   "midpoint_distance_m": 118.0,
   "start_elevation_m": 370.35041489217974,
   "end_elevation_m": 372.2559220601133,
   "start_xy": [
    677950.5693206881,
    4463205.686278789
   ],
   "end_xy": [
    677971.6275540866,
    4463251.035488332
   ]
  },
  "min_100m": {
   "gradient_pct": 4.721821628429893,
   "start_distance_m": 76.0,
   "end_distance_m": 176.0,
   "midpoint_distance_m": 126.0,
   "start_elevation_m": 369.07262118007213,
   "end_elevation_m": 373.794442808502,
   "start_xy": [
    677935.2372771597,
    4463212.568640961
   ],
   "end_xy": [
    677989.4536396748,
    4463271.012625839
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.29772731870139,
   "start_distance_m": 283.0,
   "end_distance_m": 285.0,
   "midpoint_distance_m": 284.0,
   "start_elevation_m": 391.3597303849714,
   "end_elevation_m": 391.8656849313454,
   "start_xy": [
    678085.8714612934,
    4463224.9719270915
   ],
   "end_xy": [
    678087.5552913467,
    4463223.89270684
   ]
  },
  "max_3m": {
   "gradient_pct": 25.284364241046358,
   "start_distance_m": 282.0,
   "end_distance_m": 285.0,
   "midpoint_distance_m": 283.5,
   "start_elevation_m": 391.107154004114,
   "end_elevation_m": 391.8656849313454,
   "start_xy": [
    678085.0295462668,
    4463225.511537218
   ],
   "end_xy": [
    678087.5552913467,
    4463223.89270684
   ]
  }
 },
 "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": {
  "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_x67y447_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T11:30:35+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-band2.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_WesternPA_2019_D20 (collected 2020)",
  "elevation_tile_ids": [
   "x67y447"
  ],
  "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": "Johnstown",
  "county": "Pennsylvania"
 }
}