{
 "ocl_version": "0.1.0",
 "name": "Ryder Court",
 "slug": "ryder-court",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.57065300518795,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 293.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 87.97091498227607,
   "end_elevation_m": 88.50232804237983,
   "min_gradient_pct": -14.328705717303336
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.966428513786337,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 292.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 87.75333518696624,
   "end_elevation_m": 88.50232804237983,
   "min_gradient_pct": -14.066261045520415
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.828474194492912,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 290.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 87.31090433265518,
   "end_elevation_m": 88.50232804237983,
   "min_gradient_pct": -13.937446272635157
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.00425137677621,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 286.0,
   "end_distance_m": 296.0,
   "start_elevation_m": 86.4179226512891,
   "end_elevation_m": 88.71834778896672,
   "min_gradient_pct": -12.323963156939897
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.93850829180127,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 280.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 85.28014590052008,
   "end_elevation_m": 89.46784755888034,
   "min_gradient_pct": -10.597801772547655
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.36251014728407,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 277.0,
   "end_distance_m": 302.0,
   "start_elevation_m": 84.72579406973726,
   "end_elevation_m": 89.81642160655828,
   "min_gradient_pct": -9.544581127327717
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.871379257125227,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 257.0,
   "end_distance_m": 307.0,
   "start_elevation_m": 81.17943507953368,
   "end_elevation_m": 90.61512470809629,
   "min_gradient_pct": -3.0599633687515393
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.953192987655711,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 223.0,
   "end_distance_m": 323.0,
   "start_elevation_m": 76.70266922404954,
   "end_elevation_m": 92.65586221170526,
   "min_gradient_pct": 0.9847698073483571
  }
 ],
 "shape": {
  "ascent_concentration": 0.434,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 113.0,
  "shape_class": "sustained"
 },
 "length_m": 452.11754293515025,
 "start_elevation_m": 59.11196079770042,
 "end_elevation_m": 96.15605752314121,
 "endpoint_gain_m": 37.044096725440795,
 "overall_gradient_pct": 8.193465903789148,
 "accumulated_ascent_m": 39.743419000163954,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.828474194492912,
   "start_distance_m": 290.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 292.5,
   "start_elevation_m": 87.31090433265518,
   "end_elevation_m": 88.50232804237983,
   "start_xy": [
    583244.3565088076,
    4566229.33347684
   ],
   "end_xy": [
    583245.573897532,
    4566234.183009259
   ]
  },
  "max_10m": {
   "gradient_pct": 23.00425137677621,
   "start_distance_m": 286.0,
   "end_distance_m": 296.0,
   "midpoint_distance_m": 291.0,
   "start_elevation_m": 86.4179226512891,
   "end_elevation_m": 88.71834778896672,
   "start_xy": [
    583243.3825978282,
    4566225.453850903
   ],
   "end_xy": [
    583245.8173752768,
    4566235.152915743
   ]
  },
  "max_20m": {
   "gradient_pct": 20.93850829180127,
   "start_distance_m": 280.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 290.0,
   "start_elevation_m": 85.28014590052008,
   "end_elevation_m": 89.46784755888034,
   "start_xy": [
    583241.9217313591,
    4566219.634411999
   ],
   "end_xy": [
    583246.8167984961,
    4566239.025582762
   ]
  },
  "max_25m": {
   "gradient_pct": 20.36251014728407,
   "start_distance_m": 277.0,
   "end_distance_m": 302.0,
   "midpoint_distance_m": 289.5,
   "start_elevation_m": 84.72579406973726,
   "end_elevation_m": 89.81642160655828,
   "start_xy": [
    583241.1912981245,
    4566216.724692547
   ],
   "end_xy": [
    583247.3822404289,
    4566240.943987156
   ]
  },
  "max_50m": {
   "gradient_pct": 18.871379257125227,
   "start_distance_m": 257.0,
   "end_distance_m": 307.0,
   "midpoint_distance_m": 282.0,
   "start_elevation_m": 81.17943507953368,
   "end_elevation_m": 90.61512470809629,
   "start_xy": [
    583236.3217432273,
    4566197.326562867
   ],
   "end_xy": [
    583248.795845261,
    4566245.739998142
   ]
  },
  "max_100m": {
   "gradient_pct": 15.953192987655711,
   "start_distance_m": 223.0,
   "end_distance_m": 323.0,
   "midpoint_distance_m": 273.0,
   "start_elevation_m": 76.70266922404954,
   "end_elevation_m": 92.65586221170526,
   "start_xy": [
    583240.211429978,
    4566163.753625007
   ],
   "end_xy": [
    583253.3193807238,
    4566261.087233298
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.937446272635157,
   "start_distance_m": 422.0,
   "end_distance_m": 427.0,
   "midpoint_distance_m": 424.5,
   "start_elevation_m": 96.86811916415283,
   "end_elevation_m": 96.17124685052107,
   "start_xy": [
    583292.6325580147,
    4566326.794128228
   ],
   "end_xy": [
    583291.8449107318,
    4566321.856556785
   ]
  },
  "min_10m": {
   "gradient_pct": -12.323963156939897,
   "start_distance_m": 421.0,
   "end_distance_m": 431.0,
   "midpoint_distance_m": 426.0,
   "start_elevation_m": 96.97547877255393,
   "end_elevation_m": 95.74308245685994,
   "start_xy": [
    583292.5867151661,
    4566327.7374650575
   ],
   "end_xy": [
    583290.2627943365,
    4566318.510601006
   ]
  },
  "min_20m": {
   "gradient_pct": -10.597801772547655,
   "start_distance_m": 417.0,
   "end_distance_m": 437.0,
   "midpoint_distance_m": 427.0,
   "start_elevation_m": 97.27386281458058,
   "end_elevation_m": 95.15430246007105,
   "start_xy": [
    583290.3746129433,
    4566331.07012222
   ],
   "end_xy": [
    583285.304332891,
    4566315.132190123
   ]
  },
  "min_25m": {
   "gradient_pct": -9.544581127327717,
   "start_distance_m": 412.0,
   "end_distance_m": 437.0,
   "midpoint_distance_m": 424.5,
   "start_elevation_m": 97.54044774190298,
   "end_elevation_m": 95.15430246007105,
   "start_xy": [
    583287.1497395417,
    4566334.799792723
   ],
   "end_xy": [
    583285.304332891,
    4566315.132190123
   ]
  },
  "min_50m": {
   "gradient_pct": -3.0599633687515393,
   "start_distance_m": 401.0,
   "end_distance_m": 451.0,
   "midpoint_distance_m": 426.0,
   "start_elevation_m": 97.67770561688255,
   "end_elevation_m": 96.14772393250678,
   "start_xy": [
    583277.5905061327,
    4566335.026991185
   ],
   "end_xy": [
    583271.7892151533,
    4566316.674818194
   ]
  },
  "min_100m": {
   "gradient_pct": 0.9847698073483571,
   "start_distance_m": 339.0,
   "end_distance_m": 439.0,
   "midpoint_distance_m": 389.0,
   "start_elevation_m": 94.17631563418283,
   "end_elevation_m": 95.16108544153118,
   "start_xy": [
    583257.8429161865,
    4566276.434468454
   ],
   "end_xy": [
    583283.5709386342,
    4566314.3964433735
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.57065300518795,
   "start_distance_m": 293.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 294.0,
   "start_elevation_m": 87.97091498227607,
   "end_elevation_m": 88.50232804237983,
   "start_xy": [
    583245.0869420422,
    4566232.243196291
   ],
   "end_xy": [
    583245.573897532,
    4566234.183009259
   ]
  },
  "max_3m": {
   "gradient_pct": 24.966428513786337,
   "start_distance_m": 292.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 293.5,
   "start_elevation_m": 87.75333518696624,
   "end_elevation_m": 88.50232804237983,
   "start_xy": [
    583244.8434642974,
    4566231.273289807
   ],
   "end_xy": [
    583245.573897532,
    4566234.183009259
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.447,
   "obstruction_max_height_m": 27.46,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "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/ny/USGS_1M_18_x58y457_NY_SouthEast4County_A22.tif"
  ],
  "calculated_at": "2026-09-06T11:42:06+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-band3.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_SouthEast4County_A22 (collected 2022)",
  "elevation_tile_ids": [
   "x58y457"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_SE4County_1_A22",
   "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": "Stony Point",
  "county": "New York"
 }
}