{
 "ocl_version": "0.1.0",
 "name": "Greenbush Road",
 "slug": "greenbush-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 39.03008745488705,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 4.0,
   "end_distance_m": 6.0,
   "start_elevation_m": 580.5939916429431,
   "end_elevation_m": 581.3745933920409,
   "min_gradient_pct": -2.10270483399313
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.92746346870308,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 63.0,
   "end_distance_m": 66.0,
   "start_elevation_m": 592.5865208539071,
   "end_elevation_m": 593.6943447579682,
   "min_gradient_pct": 0.7419869530925401
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 34.243095655183424,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 62.0,
   "end_distance_m": 67.0,
   "start_elevation_m": 592.276830798115,
   "end_elevation_m": 593.9889855808742,
   "min_gradient_pct": 3.1414244066854735
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.321936152116223,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 61.0,
   "end_distance_m": 71.0,
   "start_elevation_m": 592.0590040558121,
   "end_elevation_m": 594.8911976710237,
   "min_gradient_pct": 3.2350762685575774
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.10187413997096,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 48.0,
   "end_distance_m": 68.0,
   "start_elevation_m": 589.0294307041631,
   "end_elevation_m": 594.2498055321573,
   "min_gradient_pct": 4.004004117718978
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 25.649432306700874,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 45.0,
   "end_distance_m": 70.0,
   "start_elevation_m": 588.2343679670139,
   "end_elevation_m": 594.6467260436891,
   "min_gradient_pct": 4.490687164851806
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.981962320848424,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 32.0,
   "end_distance_m": 82.0,
   "start_elevation_m": 585.9250939355594,
   "end_elevation_m": 597.4160750959836,
   "min_gradient_pct": 6.13833310695054
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.666105486795118,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1.0,
   "end_distance_m": 101.0,
   "start_elevation_m": 579.9064933466311,
   "end_elevation_m": 600.5725988334262,
   "min_gradient_pct": 9.249351708264044
  }
 ],
 "shape": {
  "ascent_concentration": 0.394,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 119.0,
  "shape_class": "sustained"
 },
 "length_m": 328.00000000012267,
 "start_elevation_m": 579.771469216822,
 "end_elevation_m": 624.3787727912022,
 "endpoint_gain_m": 44.60730357438024,
 "overall_gradient_pct": 13.599787675110841,
 "accumulated_ascent_m": 44.933264568394634,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 34.243095655183424,
   "start_distance_m": 62.0,
   "end_distance_m": 67.0,
   "midpoint_distance_m": 64.5,
   "start_elevation_m": 592.276830798115,
   "end_elevation_m": 593.9889855808742,
   "start_xy": [
    547973.6451876228,
    4717771.123347842
   ],
   "end_xy": [
    547969.7720616928,
    4717767.9612451475
   ]
  },
  "max_10m": {
   "gradient_pct": 28.321936152116223,
   "start_distance_m": 61.0,
   "end_distance_m": 71.0,
   "midpoint_distance_m": 66.0,
   "start_elevation_m": 592.0590040558121,
   "end_elevation_m": 594.8911976710237,
   "start_xy": [
    547974.4198096276,
    4717771.755772251
   ],
   "end_xy": [
    547966.6739175351,
    4717765.43112759
   ]
  },
  "max_20m": {
   "gradient_pct": 26.10187413997096,
   "start_distance_m": 48.0,
   "end_distance_m": 68.0,
   "midpoint_distance_m": 58.0,
   "start_elevation_m": 589.0294307041631,
   "end_elevation_m": 594.2498055321573,
   "start_xy": [
    547984.489624309,
    4717779.977620888
   ],
   "end_xy": [
    547968.9973183228,
    4717767.328969636
   ]
  },
  "max_25m": {
   "gradient_pct": 25.649432306700874,
   "start_distance_m": 45.0,
   "end_distance_m": 70.0,
   "midpoint_distance_m": 57.5,
   "start_elevation_m": 588.2343679670139,
   "end_elevation_m": 594.6467260436891,
   "start_xy": [
    547986.8133842918,
    4717781.875023588
   ],
   "end_xy": [
    547967.4482463268,
    4717766.063910755
   ]
  },
  "max_50m": {
   "gradient_pct": 22.981962320848424,
   "start_distance_m": 32.0,
   "end_distance_m": 82.0,
   "midpoint_distance_m": 57.0,
   "start_elevation_m": 585.9250939355594,
   "end_elevation_m": 597.4160750959836,
   "start_xy": [
    547996.883199069,
    4717790.096872107
   ],
   "end_xy": [
    547958.152816037,
    4717758.474777486
   ]
  },
  "max_100m": {
   "gradient_pct": 20.666105486795118,
   "start_distance_m": 1.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 579.9064933466311,
   "end_elevation_m": 600.5725988334262,
   "start_xy": [
    548013.0170168187,
    4717816.5457953755
   ],
   "end_xy": [
    547943.4353605943,
    4717746.458271183
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 3.1414244066854735,
   "start_distance_m": 322.0,
   "end_distance_m": 327.0,
   "midpoint_distance_m": 324.5,
   "start_elevation_m": 624.1695575376579,
   "end_elevation_m": 624.3266287579921,
   "start_xy": [
    547739.4896866293,
    4717663.602503841
   ],
   "end_xy": [
    547734.6048546523,
    4717662.535540472
   ]
  },
  "min_10m": {
   "gradient_pct": 3.2350762685575774,
   "start_distance_m": 317.0,
   "end_distance_m": 327.0,
   "midpoint_distance_m": 322.0,
   "start_elevation_m": 624.0031211311364,
   "end_elevation_m": 624.3266287579921,
   "start_xy": [
    547744.3747271949,
    4717664.668512684
   ],
   "end_xy": [
    547734.6048546523,
    4717662.535540472
   ]
  },
  "min_20m": {
   "gradient_pct": 4.004004117718978,
   "start_distance_m": 308.0,
   "end_distance_m": 328.0,
   "midpoint_distance_m": 318.0,
   "start_elevation_m": 623.5779719676584,
   "end_elevation_m": 624.3787727912022,
   "start_xy": [
    547753.1675499066,
    4717666.5884740325
   ],
   "end_xy": [
    547733.6278048216,
    4717662.322529607
   ]
  },
  "min_25m": {
   "gradient_pct": 4.490687164851806,
   "start_distance_m": 303.0,
   "end_distance_m": 328.0,
   "midpoint_distance_m": 315.5,
   "start_elevation_m": 623.2561009999893,
   "end_elevation_m": 624.3787727912022,
   "start_xy": [
    547758.0524392212,
    4717667.655175018
   ],
   "end_xy": [
    547733.6278048216,
    4717662.322529607
   ]
  },
  "min_50m": {
   "gradient_pct": 6.13833310695054,
   "start_distance_m": 278.0,
   "end_distance_m": 328.0,
   "midpoint_distance_m": 303.0,
   "start_elevation_m": 621.3096062377269,
   "end_elevation_m": 624.3787727912022,
   "start_xy": [
    547781.5800687554,
    4717676.0908845905
   ],
   "end_xy": [
    547733.6278048216,
    4717662.322529607
   ]
  },
  "min_100m": {
   "gradient_pct": 9.249351708264044,
   "start_distance_m": 228.0,
   "end_distance_m": 328.0,
   "midpoint_distance_m": 278.0,
   "start_elevation_m": 615.1294210829382,
   "end_elevation_m": 624.3787727912022,
   "start_xy": [
    547828.500678149,
    4717693.365628977
   ],
   "end_xy": [
    547733.6278048216,
    4717662.322529607
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 39.03008745488705,
   "start_distance_m": 4.0,
   "end_distance_m": 6.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 580.5939916429431,
   "end_elevation_m": 581.3745933920409,
   "start_xy": [
    548011.4693080921,
    4717813.975854437
   ],
   "end_xy": [
    548010.4377762454,
    4717812.262395819
   ]
  },
  "max_3m": {
   "gradient_pct": 36.92746346870308,
   "start_distance_m": 63.0,
   "end_distance_m": 66.0,
   "midpoint_distance_m": 64.5,
   "start_elevation_m": 592.5865208539071,
   "end_elevation_m": 593.6943447579682,
   "start_xy": [
    547972.8703133068,
    4717770.491232571
   ],
   "end_xy": [
    547970.5466837769,
    4717768.593669459
   ]
  }
 },
 "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": 0.559,
   "obstruction_max_height_m": 24.05,
   "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_x54y472_Schoharie_Creek_Watershed_Expansion_QL2_LiDAR.tif",
   "data/cache/usa/ny/USGS_1M_18_x54y473_Schoharie_Creek_Watershed_Expansion_QL2_LiDAR.tif"
  ],
  "calculated_at": "2026-09-08T19:29:13+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.osm.pbf",
  "osm_snapshot": "2026-09-04T20:21:21Z",
  "run_id": "retro-box-260908",
  "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, Schoharie_Creek_Watershed_Expansion_QL2_LiDAR (collected unknown (published 2026-06))",
  "elevation_tile_ids": [
   "x54y472",
   "x54y473"
  ],
  "route_base_cut_m": 1942.7,
  "route_cut_m": 4386.2,
  "route_summit_trim_m": 4058.2,
  "route_summit_trim_loss_m": 53.1,
  "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_Schoharie_2014_LAS_2016",
   "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": "Fulton",
  "county": "New York"
 }
}