{
 "ocl_version": "0.1.0",
 "name": "Hogan Drive",
 "slug": "hogan-drive",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.70655243378326,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 600.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 403.3366125241739,
   "end_elevation_m": 403.8507435728496,
   "min_gradient_pct": -2.742430208672886
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.483159807309146,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 599.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 403.0862487786303,
   "end_elevation_m": 403.8507435728496,
   "min_gradient_pct": -2.682217394825178
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.467924534362737,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 598.0,
   "end_distance_m": 603.0,
   "start_elevation_m": 402.86474799776636,
   "end_elevation_m": 404.0881442244845,
   "min_gradient_pct": -2.044610102630031
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.621923304306506,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 592.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 401.58855124241893,
   "end_elevation_m": 403.8507435728496,
   "min_gradient_pct": 0.5747516574552947
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.71985072588086,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 583.0,
   "end_distance_m": 603.0,
   "start_elevation_m": 399.7441740793083,
   "end_elevation_m": 404.0881442244845,
   "min_gradient_pct": 3.557485913865719
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.04458720028788,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 579.0,
   "end_distance_m": 604.0,
   "start_elevation_m": 399.0157351284736,
   "end_elevation_m": 404.27688192854555,
   "min_gradient_pct": 3.914767846636323
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.200702984212626,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 556.0,
   "end_distance_m": 606.0,
   "start_elevation_m": 395.8687392178673,
   "end_elevation_m": 404.4690907099736,
   "min_gradient_pct": 4.1512780499865585
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 12.402618372016377,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 95.0,
   "end_distance_m": 195.0,
   "start_elevation_m": 358.0833248560091,
   "end_elevation_m": 370.48594322802546,
   "min_gradient_pct": 5.235017664623513
  }
 ],
 "shape": {
  "ascent_concentration": 0.333,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 113.0,
  "shape_class": "sustained"
 },
 "length_m": 606.5416296191642,
 "start_elevation_m": 351.2116266120541,
 "end_elevation_m": 404.5038573078011,
 "endpoint_gain_m": 53.29223069574704,
 "overall_gradient_pct": 8.78624452029916,
 "accumulated_ascent_m": 53.39446120087854,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.467924534362737,
   "start_distance_m": 598.0,
   "end_distance_m": 603.0,
   "midpoint_distance_m": 600.5,
   "start_elevation_m": 402.86474799776636,
   "end_elevation_m": 404.0881442244845,
   "start_xy": [
    280602.91665915784,
    4687488.9774075765
   ],
   "end_xy": [
    280599.7775279868,
    4687485.08563992
   ]
  },
  "max_10m": {
   "gradient_pct": 22.621923304306506,
   "start_distance_m": 592.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 597.0,
   "start_elevation_m": 401.58855124241893,
   "end_elevation_m": 403.8507435728496,
   "start_xy": [
    280606.6836165631,
    4687493.647528765
   ],
   "end_xy": [
    280600.405354221,
    4687485.863993452
   ]
  },
  "max_20m": {
   "gradient_pct": 21.71985072588086,
   "start_distance_m": 583.0,
   "end_distance_m": 603.0,
   "midpoint_distance_m": 593.0,
   "start_elevation_m": 399.7441740793083,
   "end_elevation_m": 404.0881442244845,
   "start_xy": [
    280612.33405267104,
    4687500.652710546
   ],
   "end_xy": [
    280599.7775279868,
    4687485.08563992
   ]
  },
  "max_25m": {
   "gradient_pct": 21.04458720028788,
   "start_distance_m": 579.0,
   "end_distance_m": 604.0,
   "midpoint_distance_m": 591.5,
   "start_elevation_m": 399.0157351284736,
   "end_elevation_m": 404.27688192854555,
   "start_xy": [
    280614.8453576079,
    4687503.76612467
   ],
   "end_xy": [
    280599.1497017526,
    4687484.307286389
   ]
  },
  "max_50m": {
   "gradient_pct": 17.200702984212626,
   "start_distance_m": 556.0,
   "end_distance_m": 606.0,
   "midpoint_distance_m": 581.0,
   "start_elevation_m": 395.8687392178673,
   "end_elevation_m": 404.4690907099736,
   "start_xy": [
    280621.91203263646,
    4687525.255364832
   ],
   "end_xy": [
    280597.89404928416,
    4687482.750579326
   ]
  },
  "max_100m": {
   "gradient_pct": 12.402618372016377,
   "start_distance_m": 95.0,
   "end_distance_m": 195.0,
   "midpoint_distance_m": 145.0,
   "start_elevation_m": 358.0833248560091,
   "end_elevation_m": 370.48594322802546,
   "start_xy": [
    280701.55870015646,
    4687879.738659437
   ],
   "end_xy": [
    280601.9257702492,
    4687883.769594716
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.044610102630031,
   "start_distance_m": 1.0,
   "end_distance_m": 6.0,
   "midpoint_distance_m": 3.5,
   "start_elevation_m": 351.21560932928537,
   "end_elevation_m": 351.11337882415387,
   "start_xy": [
    280795.2077336859,
    4687871.623333257
   ],
   "end_xy": [
    280790.2264021152,
    4687872.054999543
   ]
  },
  "min_10m": {
   "gradient_pct": 0.5747516574552947,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 351.2116266120541,
   "end_elevation_m": 351.2691017777996,
   "start_xy": [
    280796.204,
    4687871.537
   ],
   "end_xy": [
    280786.2413368586,
    4687872.400332572
   ]
  },
  "min_20m": {
   "gradient_pct": 3.557485913865719,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 351.2116266120541,
   "end_elevation_m": 351.92312379482723,
   "start_xy": [
    280796.204,
    4687871.537
   ],
   "end_xy": [
    280776.27867371717,
    4687873.263665144
   ]
  },
  "min_25m": {
   "gradient_pct": 3.914767846636323,
   "start_distance_m": 509.0,
   "end_distance_m": 534.0,
   "midpoint_distance_m": 521.5,
   "start_elevation_m": 393.7309659112397,
   "end_elevation_m": 394.7096578728988,
   "start_xy": [
    280621.49774722155,
    4687572.147784063
   ],
   "end_xy": [
    280622.76464133576,
    4687547.179905112
   ]
  },
  "min_50m": {
   "gradient_pct": 4.1512780499865585,
   "start_distance_m": 493.0,
   "end_distance_m": 543.0,
   "midpoint_distance_m": 518.0,
   "start_elevation_m": 393.0363047289287,
   "end_elevation_m": 395.111943753922,
   "start_xy": [
    280620.6869349885,
    4687588.127226591
   ],
   "end_xy": [
    280622.9232090825,
    4687538.185368911
   ]
  },
  "min_100m": {
   "gradient_pct": 5.235017664623513,
   "start_distance_m": 453.0,
   "end_distance_m": 553.0,
   "midpoint_distance_m": 503.0,
   "start_elevation_m": 390.4151056346293,
   "end_elevation_m": 395.6501232992528,
   "start_xy": [
    280618.65990440577,
    4687628.075832913
   ],
   "end_xy": [
    280622.35074903467,
    4687528.223112785
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.70655243378326,
   "start_distance_m": 600.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 601.0,
   "start_elevation_m": 403.3366125241739,
   "end_elevation_m": 403.8507435728496,
   "start_xy": [
    280601.6610066894,
    4687487.420700514
   ],
   "end_xy": [
    280600.405354221,
    4687485.863993452
   ]
  },
  "max_3m": {
   "gradient_pct": 25.483159807309146,
   "start_distance_m": 599.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 600.5,
   "start_elevation_m": 403.0862487786303,
   "end_elevation_m": 403.8507435728496,
   "start_xy": [
    280602.28883292363,
    4687488.199054046
   ],
   "end_xy": [
    280600.405354221,
    4687485.863993452
   ]
  }
 },
 "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": 0.105,
   "obstruction_max_height_m": 19.49,
   "flagged_windows_m": [
    100
   ]
  },
  "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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ny/USGS_one_meter_x28y469_NY_Southwest_2_Co_2016.tif"
  ],
  "calculated_at": "2026-09-06T11:20:05+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": [
   "x28y469"
  ],
  "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": "Hornell",
  "county": "New York"
 }
}