{
 "ocl_version": "0.1.0",
 "name": "Cartwright Road",
 "slug": "cartwright-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.09766417170738,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 336.0,
   "end_distance_m": 338.0,
   "start_elevation_m": 456.51634672293414,
   "end_elevation_m": 457.0183000063683,
   "min_gradient_pct": -19.692897253224828
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.77270737077788,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 335.0,
   "end_distance_m": 338.0,
   "start_elevation_m": 456.27511878524496,
   "end_elevation_m": 457.0183000063683,
   "min_gradient_pct": -19.336418335016486
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.595804332010175,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 334.0,
   "end_distance_m": 339.0,
   "start_elevation_m": 456.0612150195842,
   "end_elevation_m": 457.2410052361847,
   "min_gradient_pct": -18.933356600437037
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.15113559898441,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 329.0,
   "end_distance_m": 339.0,
   "start_elevation_m": 455.0258916762863,
   "end_elevation_m": 457.2410052361847,
   "min_gradient_pct": -18.570940552414186
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.3062174975758,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 320.0,
   "end_distance_m": 340.0,
   "start_elevation_m": 453.17685357515103,
   "end_elevation_m": 457.4380970746662,
   "min_gradient_pct": -16.58317306573025
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.808660227501377,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 317.0,
   "end_distance_m": 342.0,
   "start_elevation_m": 452.6108843545361,
   "end_elevation_m": 457.81304941141144,
   "min_gradient_pct": -15.52437447034572
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.813773992795745,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 76.0,
   "end_distance_m": 126.0,
   "start_elevation_m": 417.37441535214964,
   "end_elevation_m": 426.7813023485475,
   "min_gradient_pct": -11.888108876272327
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.159191717263923,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 70.0,
   "end_distance_m": 170.0,
   "start_elevation_m": 416.47936772254207,
   "end_elevation_m": 433.638559439806,
   "min_gradient_pct": 0.6074332187425284
  }
 ],
 "shape": {
  "ascent_concentration": 0.37,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 297.0,
  "shape_class": "sustained"
 },
 "length_m": 430.82415512954714,
 "start_elevation_m": 421.31423607300235,
 "end_elevation_m": 464.4077268854983,
 "endpoint_gain_m": 43.09349081249593,
 "overall_gradient_pct": 10.002570723904254,
 "accumulated_ascent_m": 49.07614941293565,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.595804332010175,
   "start_distance_m": 334.0,
   "end_distance_m": 339.0,
   "midpoint_distance_m": 336.5,
   "start_elevation_m": 456.0612150195842,
   "end_elevation_m": 457.2410052361847,
   "start_xy": [
    304917.5129437952,
    4674745.861636769
   ],
   "end_xy": [
    304917.12469405535,
    4674750.798304848
   ]
  },
  "max_10m": {
   "gradient_pct": 22.15113559898441,
   "start_distance_m": 329.0,
   "end_distance_m": 339.0,
   "midpoint_distance_m": 334.0,
   "start_elevation_m": 455.0258916762863,
   "end_elevation_m": 457.2410052361847,
   "start_xy": [
    304917.227403064,
    4674740.869796779
   ],
   "end_xy": [
    304917.12469405535,
    4674750.798304848
   ]
  },
  "max_20m": {
   "gradient_pct": 21.3062174975758,
   "start_distance_m": 320.0,
   "end_distance_m": 340.0,
   "midpoint_distance_m": 330.0,
   "start_elevation_m": 453.17685357515103,
   "end_elevation_m": 457.4380970746662,
   "start_xy": [
    304915.2170944335,
    4674732.189043393
   ],
   "end_xy": [
    304916.90593701607,
    4674751.774084208
   ]
  },
  "max_25m": {
   "gradient_pct": 20.808660227501377,
   "start_distance_m": 317.0,
   "end_distance_m": 342.0,
   "midpoint_distance_m": 329.5,
   "start_elevation_m": 452.6108843545361,
   "end_elevation_m": 457.81304941141144,
   "start_xy": [
    304913.77810704336,
    4674729.606754098
   ],
   "end_xy": [
    304916.46842293756,
    4674753.725642926
   ]
  },
  "max_50m": {
   "gradient_pct": 18.813773992795745,
   "start_distance_m": 76.0,
   "end_distance_m": 126.0,
   "midpoint_distance_m": 101.0,
   "start_elevation_m": 417.37441535214964,
   "end_elevation_m": 426.7813023485475,
   "start_xy": [
    304721.1872834127,
    4674588.601569892
   ],
   "end_xy": [
    304760.505755405,
    4674617.942409354
   ]
  },
  "max_100m": {
   "gradient_pct": 17.159191717263923,
   "start_distance_m": 70.0,
   "end_distance_m": 170.0,
   "midpoint_distance_m": 120.0,
   "start_elevation_m": 416.47936772254207,
   "end_elevation_m": 433.638559439806,
   "start_xy": [
    304715.44416143605,
    4674586.864748093
   ],
   "end_xy": [
    304792.54772229353,
    4674647.710895229
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -18.933356600437037,
   "start_distance_m": 24.0,
   "end_distance_m": 29.0,
   "midpoint_distance_m": 26.5,
   "start_elevation_m": 418.6993636970991,
   "end_elevation_m": 417.75269586707725,
   "start_xy": [
    304669.94126406737,
    4674580.98353023
   ],
   "end_xy": [
    304674.9377562181,
    4674581.151430136
   ]
  },
  "min_10m": {
   "gradient_pct": -18.570940552414186,
   "start_distance_m": 23.0,
   "end_distance_m": 33.0,
   "midpoint_distance_m": 28.0,
   "start_elevation_m": 418.8801610137699,
   "end_elevation_m": 417.0230669585285,
   "start_xy": [
    304668.9417148162,
    4674580.953508663
   ],
   "end_xy": [
    304678.9132657804,
    4674581.593384568
   ]
  },
  "min_20m": {
   "gradient_pct": -16.58317306573025,
   "start_distance_m": 18.0,
   "end_distance_m": 38.0,
   "midpoint_distance_m": 28.0,
   "start_elevation_m": 419.59783483984484,
   "end_elevation_m": 416.2812002266988,
   "start_xy": [
    304663.9439685605,
    4674580.803400824
   ],
   "end_xy": [
    304683.8826527332,
    4674582.145827608
   ]
  },
  "min_25m": {
   "gradient_pct": -15.52437447034572,
   "start_distance_m": 17.0,
   "end_distance_m": 42.0,
   "midpoint_distance_m": 29.5,
   "start_elevation_m": 419.71343817055435,
   "end_elevation_m": 415.8323445529679,
   "start_xy": [
    304662.9444193093,
    4674580.773379256
   ],
   "end_xy": [
    304687.8581622954,
    4674582.58778204
   ]
  },
  "min_50m": {
   "gradient_pct": -11.888108876272327,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 421.31423607300235,
   "end_elevation_m": 415.3701816348662,
   "start_xy": [
    304647.855,
    4674586.762
   ],
   "end_xy": [
    304695.80918141996,
    4674583.471690905
   ]
  },
  "min_100m": {
   "gradient_pct": 0.6074332187425284,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 421.31423607300235,
   "end_elevation_m": 421.9216692917449,
   "start_xy": [
    304647.855,
    4674586.762
   ],
   "end_xy": [
    304742.38336543547,
    4674599.365551809
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.09766417170738,
   "start_distance_m": 336.0,
   "end_distance_m": 338.0,
   "midpoint_distance_m": 337.0,
   "start_elevation_m": 456.51634672293414,
   "end_elevation_m": 457.0183000063683,
   "start_xy": [
    304917.6271600877,
    4674747.858372766
   ],
   "end_xy": [
    304917.34345109464,
    4674749.822525489
   ]
  },
  "max_3m": {
   "gradient_pct": 24.77270737077788,
   "start_distance_m": 335.0,
   "end_distance_m": 338.0,
   "midpoint_distance_m": 336.5,
   "start_elevation_m": 456.27511878524496,
   "end_elevation_m": 457.0183000063683,
   "start_xy": [
    304917.57005194144,
    4674746.860004768
   ],
   "end_xy": [
    304917.34345109464,
    4674749.822525489
   ]
  }
 },
 "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": 0.06,
   "obstruction_max_height_m": 19.74,
   "flagged_windows_m": [
    100
   ]
  },
  "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/ny/USGS_one_meter_x30y468_NY_Southwest_2_Co_2016.tif"
  ],
  "calculated_at": "2026-09-06T12:28:09+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": [
   "x30y468"
  ],
  "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": "Cameron",
  "county": "New York"
 }
}