{
 "ocl_version": "0.1.0",
 "name": "Locust Street",
 "slug": "locust-street-4-3",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.021503444289237,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 153.0,
   "end_distance_m": 155.0,
   "start_elevation_m": 280.1724272390236,
   "end_elevation_m": 280.6328573079094,
   "min_gradient_pct": -9.76433405135424
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.50361149758457,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 153.0,
   "end_distance_m": 156.0,
   "start_elevation_m": 280.1724272390236,
   "end_elevation_m": 280.8475355839511,
   "min_gradient_pct": -9.356532099208911
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.24291935158135,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 153.0,
   "end_distance_m": 158.0,
   "start_elevation_m": 280.1724272390236,
   "end_elevation_m": 281.28457320660266,
   "min_gradient_pct": -8.514784257932888
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.53353174365634,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 153.0,
   "end_distance_m": 163.0,
   "start_elevation_m": 280.1724272390236,
   "end_elevation_m": 282.3257804133892,
   "min_gradient_pct": -7.539703901054509
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.672528296692576,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 146.0,
   "end_distance_m": 166.0,
   "start_elevation_m": 278.79453036215347,
   "end_elevation_m": 282.929036021492,
   "min_gradient_pct": -6.946780563471293
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.388166786382726,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 143.0,
   "end_distance_m": 168.0,
   "start_elevation_m": 278.2133120417734,
   "end_elevation_m": 283.3103537383691,
   "min_gradient_pct": -6.841251389328818
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.594129625173537,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 126.0,
   "end_distance_m": 176.0,
   "start_elevation_m": 275.39599530047246,
   "end_elevation_m": 284.69306011305923,
   "min_gradient_pct": -5.426538226451726
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.432752031645975,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 128.0,
   "end_distance_m": 228.0,
   "start_elevation_m": 275.6205922179674,
   "end_elevation_m": 292.05334424961336,
   "min_gradient_pct": -1.3427169430511299
  }
 ],
 "shape": {
  "ascent_concentration": 0.619,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 60.0,
  "shape_class": "stepped"
 },
 "length_m": 619.0588056477852,
 "start_elevation_m": 274.08349277868183,
 "end_elevation_m": 305.87360260076844,
 "endpoint_gain_m": 31.790109822086606,
 "overall_gradient_pct": 5.135232635746346,
 "accumulated_ascent_m": 37.08952475906136,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.24291935158135,
   "start_distance_m": 153.0,
   "end_distance_m": 158.0,
   "midpoint_distance_m": 155.5,
   "start_elevation_m": 280.1724272390236,
   "end_elevation_m": 281.28457320660266,
   "start_xy": [
    367460.28806137864,
    4516048.302601909
   ],
   "end_xy": [
    367460.4769216465,
    4516043.306170003
   ]
  },
  "max_10m": {
   "gradient_pct": 21.53353174365634,
   "start_distance_m": 153.0,
   "end_distance_m": 163.0,
   "midpoint_distance_m": 158.0,
   "start_elevation_m": 280.1724272390236,
   "end_elevation_m": 282.3257804133892,
   "start_xy": [
    367460.28806137864,
    4516048.302601909
   ],
   "end_xy": [
    367460.6657819143,
    4516038.309738096
   ]
  },
  "max_20m": {
   "gradient_pct": 20.672528296692576,
   "start_distance_m": 146.0,
   "end_distance_m": 166.0,
   "midpoint_distance_m": 156.0,
   "start_elevation_m": 278.79453036215347,
   "end_elevation_m": 282.929036021492,
   "start_xy": [
    367460.0236570037,
    4516055.297606579
   ],
   "end_xy": [
    367460.779098075,
    4516035.311878951
   ]
  },
  "max_25m": {
   "gradient_pct": 20.388166786382726,
   "start_distance_m": 143.0,
   "end_distance_m": 168.0,
   "midpoint_distance_m": 155.5,
   "start_elevation_m": 278.2133120417734,
   "end_elevation_m": 283.3103537383691,
   "start_xy": [
    367459.91034084297,
    4516058.295465723
   ],
   "end_xy": [
    367460.8546421821,
    4516033.313306189
   ]
  },
  "max_50m": {
   "gradient_pct": 18.594129625173537,
   "start_distance_m": 126.0,
   "end_distance_m": 176.0,
   "midpoint_distance_m": 151.0,
   "start_elevation_m": 275.39599530047246,
   "end_elevation_m": 284.69306011305923,
   "start_xy": [
    367459.26821593236,
    4516075.283334206
   ],
   "end_xy": [
    367461.1568186107,
    4516025.319015138
   ]
  },
  "max_100m": {
   "gradient_pct": 16.432752031645975,
   "start_distance_m": 128.0,
   "end_distance_m": 228.0,
   "midpoint_distance_m": 178.0,
   "start_elevation_m": 275.6205922179674,
   "end_elevation_m": 292.05334424961336,
   "start_xy": [
    367459.3437600395,
    4516073.284761443
   ],
   "end_xy": [
    367463.11124895484,
    4515973.355756998
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.514784257932888,
   "start_distance_m": 7.0,
   "end_distance_m": 12.0,
   "midpoint_distance_m": 9.5,
   "start_elevation_m": 273.7807317638662,
   "end_elevation_m": 273.35499255096954,
   "start_xy": [
    367455.8763965182,
    4516194.234508839
   ],
   "end_xy": [
    367456.01025117404,
    4516189.236300867
   ]
  },
  "min_10m": {
   "gradient_pct": -7.539703901054509,
   "start_distance_m": 7.0,
   "end_distance_m": 17.0,
   "midpoint_distance_m": 12.0,
   "start_elevation_m": 273.7807317638662,
   "end_elevation_m": 273.02676137376073,
   "start_xy": [
    367455.8763965182,
    4516194.234508839
   ],
   "end_xy": [
    367456.1441058299,
    4516184.238092895
   ]
  },
  "min_20m": {
   "gradient_pct": -6.946780563471293,
   "start_distance_m": 5.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 15.0,
   "start_elevation_m": 273.9004945043428,
   "end_elevation_m": 272.51113839164856,
   "start_xy": [
    367455.82285465585,
    4516196.233792027
   ],
   "end_xy": [
    367456.3582732793,
    4516176.24096014
   ]
  },
  "min_25m": {
   "gradient_pct": -6.841251389328818,
   "start_distance_m": 7.0,
   "end_distance_m": 32.0,
   "midpoint_distance_m": 19.5,
   "start_elevation_m": 273.7807317638662,
   "end_elevation_m": 272.070418916534,
   "start_xy": [
    367455.8763965182,
    4516194.234508839
   ],
   "end_xy": [
    367456.54566979746,
    4516169.243468979
   ]
  },
  "min_50m": {
   "gradient_pct": -5.426538226451726,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 274.08349277868183,
   "end_elevation_m": 271.37022366545597,
   "start_xy": [
    367455.689,
    4516201.232
   ],
   "end_xy": [
    367457.0275465585,
    4516151.24992028
   ]
  },
  "min_100m": {
   "gradient_pct": -1.3427169430511299,
   "start_distance_m": 364.0,
   "end_distance_m": 464.0,
   "midpoint_distance_m": 414.0,
   "start_elevation_m": 304.09328979645437,
   "end_elevation_m": 302.75057285340324,
   "start_xy": [
    367466.6090213796,
    4515837.404561622
   ],
   "end_xy": [
    367468.6030570717,
    4515737.424833971
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.021503444289237,
   "start_distance_m": 153.0,
   "end_distance_m": 155.0,
   "midpoint_distance_m": 154.0,
   "start_elevation_m": 280.1724272390236,
   "end_elevation_m": 280.6328573079094,
   "start_xy": [
    367460.28806137864,
    4516048.302601909
   ],
   "end_xy": [
    367460.36360548576,
    4516046.304029146
   ]
  },
  "max_3m": {
   "gradient_pct": 22.50361149758457,
   "start_distance_m": 153.0,
   "end_distance_m": 156.0,
   "midpoint_distance_m": 154.5,
   "start_elevation_m": 280.1724272390236,
   "end_elevation_m": 280.8475355839511,
   "start_xy": [
    367460.28806137864,
    4516048.302601909
   ],
   "end_xy": [
    367460.4013775393,
    4516045.304742765
   ]
  }
 },
 "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": [
   "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_one_meter_x36y452_PA_South_Central_B2_2017.tif"
  ],
  "calculated_at": "2026-09-07T11:24:03+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-band3.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_South_Central_B2_2017 (collected 2017)",
  "elevation_tile_ids": [
   "x36y452"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Coal",
  "county": "Pennsylvania"
 }
}