{
 "ocl_version": "0.1.0",
 "name": "Rogers Road",
 "slug": "rogers-road-5",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.662659999957896,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 784.0,
   "end_distance_m": 786.0,
   "start_elevation_m": 458.7703438343789,
   "end_elevation_m": 459.34359703437804,
   "min_gradient_pct": -21.18339496187218
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.555272761637223,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 782.0,
   "end_distance_m": 785.0,
   "start_elevation_m": 458.210124512021,
   "end_elevation_m": 459.06678269487014,
   "min_gradient_pct": -16.55484023220879
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.95956082292946,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 781.0,
   "end_distance_m": 786.0,
   "start_elevation_m": 457.94561899323156,
   "end_elevation_m": 459.34359703437804,
   "min_gradient_pct": -9.696781686614031
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.88848442427468,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 781.0,
   "end_distance_m": 791.0,
   "start_elevation_m": 457.94561899323156,
   "end_elevation_m": 460.43446743565903,
   "min_gradient_pct": -3.89344057522635
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.355761305476506,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 774.0,
   "end_distance_m": 794.0,
   "start_elevation_m": 456.4227221912375,
   "end_elevation_m": 461.0938744523328,
   "min_gradient_pct": -3.027574794493546
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.994499752261845,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 774.0,
   "end_distance_m": 799.0,
   "start_elevation_m": 456.4227221912375,
   "end_elevation_m": 462.17134712930294,
   "min_gradient_pct": -2.6426418866344648
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.166270216469343,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 773.0,
   "end_distance_m": 823.0,
   "start_elevation_m": 456.2123975828399,
   "end_elevation_m": 467.2955326910746,
   "min_gradient_pct": -1.6498300529777907
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.683102319293425,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 773.0,
   "end_distance_m": 873.0,
   "start_elevation_m": 456.2123975828399,
   "end_elevation_m": 475.89549990213334,
   "min_gradient_pct": -1.262635445601859
  }
 ],
 "shape": {
  "ascent_concentration": 0.583,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 215.0,
  "shape_class": "stepped"
 },
 "length_m": 1256.255094582129,
 "start_elevation_m": 436.14851103851447,
 "end_elevation_m": 510.66229269489315,
 "endpoint_gain_m": 74.51378165637868,
 "overall_gradient_pct": 5.931421251761321,
 "accumulated_ascent_m": 77.49494007896828,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.95956082292946,
   "start_distance_m": 781.0,
   "end_distance_m": 786.0,
   "midpoint_distance_m": 783.5,
   "start_elevation_m": 457.94561899323156,
   "end_elevation_m": 459.34359703437804,
   "start_xy": [
    253713.06085550095,
    4675637.352520271
   ],
   "end_xy": [
    253718.04118184495,
    4675636.909406845
   ]
  },
  "max_10m": {
   "gradient_pct": 24.88848442427468,
   "start_distance_m": 781.0,
   "end_distance_m": 791.0,
   "midpoint_distance_m": 786.0,
   "start_elevation_m": 457.94561899323156,
   "end_elevation_m": 460.43446743565903,
   "start_xy": [
    253713.06085550095,
    4675637.352520271
   ],
   "end_xy": [
    253723.02150818892,
    4675636.466293421
   ]
  },
  "max_20m": {
   "gradient_pct": 23.355761305476506,
   "start_distance_m": 774.0,
   "end_distance_m": 794.0,
   "midpoint_distance_m": 784.0,
   "start_elevation_m": 456.4227221912375,
   "end_elevation_m": 461.0938744523328,
   "start_xy": [
    253706.33589102622,
    4675636.497425992
   ],
   "end_xy": [
    253726.00970399528,
    4675636.200425365
   ]
  },
  "max_25m": {
   "gradient_pct": 22.994499752261845,
   "start_distance_m": 774.0,
   "end_distance_m": 799.0,
   "midpoint_distance_m": 786.5,
   "start_elevation_m": 456.4227221912375,
   "end_elevation_m": 462.17134712930294,
   "start_xy": [
    253706.33589102622,
    4675636.497425992
   ],
   "end_xy": [
    253730.75340895428,
    4675634.777184096
   ]
  },
  "max_50m": {
   "gradient_pct": 22.166270216469343,
   "start_distance_m": 773.0,
   "end_distance_m": 823.0,
   "midpoint_distance_m": 798.0,
   "start_elevation_m": 456.2123975828399,
   "end_elevation_m": 467.2955326910746,
   "start_xy": [
    253705.42326123954,
    4675636.088638917
   ],
   "end_xy": [
    253752.90812398327,
    4675625.576638177
   ]
  },
  "max_100m": {
   "gradient_pct": 19.683102319293425,
   "start_distance_m": 773.0,
   "end_distance_m": 873.0,
   "midpoint_distance_m": 823.0,
   "start_elevation_m": 456.2123975828399,
   "end_elevation_m": 475.89549990213334,
   "start_xy": [
    253705.42326123954,
    4675636.088638917
   ],
   "end_xy": [
    253796.71665016518,
    4675601.482036213
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -9.696781686614031,
   "start_distance_m": 1231.0,
   "end_distance_m": 1236.0,
   "midpoint_distance_m": 1233.5,
   "start_elevation_m": 510.21705514602314,
   "end_elevation_m": 509.73221606169244,
   "start_xy": [
    254140.47283532482,
    4675554.576763036
   ],
   "end_xy": [
    254143.00067473436,
    4675550.262828878
   ]
  },
  "min_10m": {
   "gradient_pct": -3.89344057522635,
   "start_distance_m": 113.0,
   "end_distance_m": 123.0,
   "midpoint_distance_m": 118.0,
   "start_elevation_m": 436.8345369350517,
   "end_elevation_m": 436.44519287752905,
   "start_xy": [
    253135.34474753178,
    4675513.152399737
   ],
   "end_xy": [
    253145.31151520295,
    4675513.966980727
   ]
  },
  "min_20m": {
   "gradient_pct": -3.027574794493546,
   "start_distance_m": 112.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 122.0,
   "start_elevation_m": 436.8741397798707,
   "end_elevation_m": 436.268624820972,
   "start_xy": [
    253134.34807076465,
    4675513.070941639
   ],
   "end_xy": [
    253154.281606107,
    4675514.700103618
   ]
  },
  "min_25m": {
   "gradient_pct": -2.6426418866344648,
   "start_distance_m": 111.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 123.5,
   "start_elevation_m": 436.89279024634857,
   "end_elevation_m": 436.23212977468995,
   "start_xy": [
    253133.35139399755,
    4675512.98948354
   ],
   "end_xy": [
    253158.26831317547,
    4675515.025936014
   ]
  },
  "min_50m": {
   "gradient_pct": -1.6498300529777907,
   "start_distance_m": 111.0,
   "end_distance_m": 161.0,
   "midpoint_distance_m": 136.0,
   "start_elevation_m": 436.89279024634857,
   "end_elevation_m": 436.0678752198597,
   "start_xy": [
    253133.35139399755,
    4675512.98948354
   ],
   "end_xy": [
    253183.2404445847,
    4675515.0084547885
   ]
  },
  "min_100m": {
   "gradient_pct": -1.262635445601859,
   "start_distance_m": 108.0,
   "end_distance_m": 208.0,
   "midpoint_distance_m": 158.0,
   "start_elevation_m": 436.8654234970387,
   "end_elevation_m": 435.60278805143685,
   "start_xy": [
    253130.3613636962,
    4675512.745109242
   ],
   "end_xy": [
    253230.22926192614,
    4675513.988803108
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.662659999957896,
   "start_distance_m": 784.0,
   "end_distance_m": 786.0,
   "midpoint_distance_m": 785.0,
   "start_elevation_m": 458.7703438343789,
   "end_elevation_m": 459.34359703437804,
   "start_xy": [
    253716.04905130735,
    4675637.086652216
   ],
   "end_xy": [
    253718.04118184495,
    4675636.909406845
   ]
  },
  "max_3m": {
   "gradient_pct": 28.555272761637223,
   "start_distance_m": 782.0,
   "end_distance_m": 785.0,
   "midpoint_distance_m": 783.5,
   "start_elevation_m": 458.210124512021,
   "end_elevation_m": 459.06678269487014,
   "start_xy": [
    253714.05692076977,
    4675637.263897586
   ],
   "end_xy": [
    253717.04511657613,
    4675636.998029531
   ]
  }
 },
 "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": {
  "no_bench_suppression": {
   "masked_fraction": 0.021,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.406,
   "obstruction_max_height_m": 26.8,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    1230.0,
    1256.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "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/ny/USGS_one_meter_x25y468_NY_Southwest_2_Co_2016.tif"
  ],
  "calculated_at": "2026-09-06T10:39:55+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-york-2026-09-06-batch-band1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ny-run3-260906",
  "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, NY_Southwest_2_Co_2016 (collected 2016)",
  "elevation_tile_ids": [
   "x25y468"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://usgs-lidar-public.s3-us-west-2.amazonaws.com/USGS_LPC_NY_Southwest_2_CO_2016_LAS_2018",
   "ept_crs": "EPSG:3857",
   "station_coverage": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Amity",
  "county": "New York"
 }
}