{
 "ocl_version": "0.1.0",
 "name": "Novinger Road",
 "slug": "novinger-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.37677352932701,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1299.0,
   "end_distance_m": 1301.0,
   "start_elevation_m": 365.4426053458202,
   "end_elevation_m": 365.91014081640674,
   "min_gradient_pct": -20.323129741743173
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.288917093537975,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1300.0,
   "end_distance_m": 1303.0,
   "start_elevation_m": 365.6752753772372,
   "end_elevation_m": 366.37394289004334,
   "min_gradient_pct": -19.95045227082907
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.203287642934356,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1299.0,
   "end_distance_m": 1304.0,
   "start_elevation_m": 365.4426053458202,
   "end_elevation_m": 366.6027697279669,
   "min_gradient_pct": -19.84476047342696
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.865753476862665,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1299.0,
   "end_distance_m": 1309.0,
   "start_elevation_m": 365.4426053458202,
   "end_elevation_m": 367.72918069350646,
   "min_gradient_pct": -19.680396633680175
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.423614015946498,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1296.0,
   "end_distance_m": 1316.0,
   "start_elevation_m": 364.7968389015064,
   "end_elevation_m": 369.2815617046957,
   "min_gradient_pct": -19.33907922317303
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.213678473915024,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1291.0,
   "end_distance_m": 1316.0,
   "start_elevation_m": 363.72814208621696,
   "end_elevation_m": 369.2815617046957,
   "min_gradient_pct": -19.170554797708746
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.44850671798372,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1275.0,
   "end_distance_m": 1325.0,
   "start_elevation_m": 360.79357620310964,
   "end_elevation_m": 371.0178295621015,
   "min_gradient_pct": -17.394501237631175
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.298356924057657,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 611.0,
   "end_distance_m": 711.0,
   "start_elevation_m": 323.8417831457743,
   "end_elevation_m": 343.14014006983194,
   "min_gradient_pct": -12.508622701276636
  }
 ],
 "shape": {
  "ascent_concentration": 0.511,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 235.0,
  "shape_class": "stepped"
 },
 "length_m": 1659.908575038615,
 "start_elevation_m": 274.4434896746361,
 "end_elevation_m": 384.81809138764936,
 "endpoint_gain_m": 110.37460171301325,
 "overall_gradient_pct": 6.6494386120299165,
 "accumulated_ascent_m": 126.27206883937271,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.203287642934356,
   "start_distance_m": 1299.0,
   "end_distance_m": 1304.0,
   "midpoint_distance_m": 1301.5,
   "start_elevation_m": 365.4426053458202,
   "end_elevation_m": 366.6027697279669,
   "start_xy": [
    618760.0802473155,
    4501233.313054976
   ],
   "end_xy": [
    618756.3142166145,
    4501236.601977712
   ]
  },
  "max_10m": {
   "gradient_pct": 22.865753476862665,
   "start_distance_m": 1299.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1304.0,
   "start_elevation_m": 365.4426053458202,
   "end_elevation_m": 367.72918069350646,
   "start_xy": [
    618760.0802473155,
    4501233.313054976
   ],
   "end_xy": [
    618752.5481859134,
    4501239.890900447
   ]
  },
  "max_20m": {
   "gradient_pct": 22.423614015946498,
   "start_distance_m": 1296.0,
   "end_distance_m": 1316.0,
   "midpoint_distance_m": 1306.0,
   "start_elevation_m": 364.7968389015064,
   "end_elevation_m": 369.2815617046957,
   "start_xy": [
    618762.3398657361,
    4501231.339701335
   ],
   "end_xy": [
    618747.2757429319,
    4501244.495392276
   ]
  },
  "max_25m": {
   "gradient_pct": 22.213678473915024,
   "start_distance_m": 1291.0,
   "end_distance_m": 1316.0,
   "midpoint_distance_m": 1303.5,
   "start_elevation_m": 363.72814208621696,
   "end_elevation_m": 369.2815617046957,
   "start_xy": [
    618766.1058964372,
    4501228.050778599
   ],
   "end_xy": [
    618747.2757429319,
    4501244.495392276
   ]
  },
  "max_50m": {
   "gradient_pct": 20.44850671798372,
   "start_distance_m": 1275.0,
   "end_distance_m": 1325.0,
   "midpoint_distance_m": 1300.0,
   "start_elevation_m": 360.79357620310964,
   "end_elevation_m": 371.0178295621015,
   "start_xy": [
    618778.1571946805,
    4501217.526225846
   ],
   "end_xy": [
    618740.49688767,
    4501250.415453199
   ]
  },
  "max_100m": {
   "gradient_pct": 19.298356924057657,
   "start_distance_m": 611.0,
   "end_distance_m": 711.0,
   "midpoint_distance_m": 661.0,
   "start_elevation_m": 323.8417831457743,
   "end_elevation_m": 343.14014006983194,
   "start_xy": [
    619134.0580086998,
    4500683.652769806
   ],
   "end_xy": [
    619076.8653503899,
    4500765.60373148
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -19.84476047342696,
   "start_distance_m": 1128.0,
   "end_distance_m": 1133.0,
   "midpoint_distance_m": 1130.5,
   "start_elevation_m": 362.5051174954793,
   "end_elevation_m": 361.51287947180793,
   "start_xy": [
    618889.2964789406,
    4501121.313104714
   ],
   "end_xy": [
    618885.5129131635,
    4501124.581839945
   ]
  },
  "min_10m": {
   "gradient_pct": -19.680396633680175,
   "start_distance_m": 1127.0,
   "end_distance_m": 1137.0,
   "midpoint_distance_m": 1132.0,
   "start_elevation_m": 362.69834017587016,
   "end_elevation_m": 360.73030051250214,
   "start_xy": [
    618890.0531920962,
    4501120.659357668
   ],
   "end_xy": [
    618882.4860605418,
    4501127.19682813
   ]
  },
  "min_20m": {
   "gradient_pct": -19.33907922317303,
   "start_distance_m": 1121.0,
   "end_distance_m": 1141.0,
   "midpoint_distance_m": 1131.0,
   "start_elevation_m": 363.86905417966983,
   "end_elevation_m": 360.0012383350352,
   "start_xy": [
    618894.5934710287,
    4501116.736875391
   ],
   "end_xy": [
    618879.45920792,
    4501129.811816314
   ]
  },
  "min_25m": {
   "gradient_pct": -19.170554797708746,
   "start_distance_m": 1120.0,
   "end_distance_m": 1145.0,
   "midpoint_distance_m": 1132.5,
   "start_elevation_m": 364.0460396065368,
   "end_elevation_m": 359.2534009071096,
   "start_xy": [
    618895.3501841841,
    4501116.083128344
   ],
   "end_xy": [
    618876.4323552983,
    4501132.426804499
   ]
  },
  "min_50m": {
   "gradient_pct": -17.394501237631175,
   "start_distance_m": 1110.0,
   "end_distance_m": 1160.0,
   "midpoint_distance_m": 1135.0,
   "start_elevation_m": 365.6309501481684,
   "end_elevation_m": 356.9336995293528,
   "start_xy": [
    618902.9173157385,
    4501109.5456578825
   ],
   "end_xy": [
    618865.0816579667,
    4501142.2330101915
   ]
  },
  "min_100m": {
   "gradient_pct": -12.508622701276636,
   "start_distance_m": 1095.0,
   "end_distance_m": 1195.0,
   "midpoint_distance_m": 1145.0,
   "start_elevation_m": 366.70192144453705,
   "end_elevation_m": 354.1932987432604,
   "start_xy": [
    618914.2447384361,
    4501099.713301589
   ],
   "end_xy": [
    618838.5966975265,
    4501165.114156809
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.37677352932701,
   "start_distance_m": 1299.0,
   "end_distance_m": 1301.0,
   "midpoint_distance_m": 1300.0,
   "start_elevation_m": 365.4426053458202,
   "end_elevation_m": 365.91014081640674,
   "start_xy": [
    618760.0802473155,
    4501233.313054976
   ],
   "end_xy": [
    618758.5738350351,
    4501234.62862407
   ]
  },
  "max_3m": {
   "gradient_pct": 23.288917093537975,
   "start_distance_m": 1300.0,
   "end_distance_m": 1303.0,
   "midpoint_distance_m": 1301.5,
   "start_elevation_m": 365.6752753772372,
   "end_elevation_m": 366.37394289004334,
   "start_xy": [
    618759.3270411753,
    4501233.970839523
   ],
   "end_xy": [
    618757.0674227546,
    4501235.944193164
   ]
  }
 },
 "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_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_x61y451_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T23:59:35+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.osm.pbf",
  "osm_snapshot": "2026-09-06T20:21:35Z",
  "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": [
   "x61y451"
  ],
  "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": "Gilpin",
  "county": "Pennsylvania"
 }
}