{
 "ocl_version": "0.1.0",
 "name": "Thistle Avenue",
 "slug": "thistle-avenue",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.983385919217653,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1300.0,
   "end_distance_m": 1302.0,
   "start_elevation_m": 203.79634701438627,
   "end_elevation_m": 204.39601473277062,
   "min_gradient_pct": -13.997276073538956
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.914960847102634,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1298.0,
   "end_distance_m": 1301.0,
   "start_elevation_m": 203.19954115636025,
   "end_elevation_m": 204.09698998177333,
   "min_gradient_pct": -13.596355934252339
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.729737890482397,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1297.0,
   "end_distance_m": 1302.0,
   "start_elevation_m": 202.9095278382465,
   "end_elevation_m": 204.39601473277062,
   "min_gradient_pct": -13.529917844044803
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.459901435458846,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1292.0,
   "end_distance_m": 1302.0,
   "start_elevation_m": 201.45002458922474,
   "end_elevation_m": 204.39601473277062,
   "min_gradient_pct": -13.33914118240898
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 28.82971311160489,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1286.0,
   "end_distance_m": 1306.0,
   "start_elevation_m": 199.78904664842085,
   "end_elevation_m": 205.55498927074183,
   "min_gradient_pct": -12.729233501302701
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 28.582112143126665,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1285.0,
   "end_distance_m": 1310.0,
   "start_elevation_m": 199.51661463178277,
   "end_elevation_m": 206.66214266756444,
   "min_gradient_pct": -12.386438000834119
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 26.829028415463373,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1281.0,
   "end_distance_m": 1331.0,
   "start_elevation_m": 198.5294724007488,
   "end_elevation_m": 211.9439866084805,
   "min_gradient_pct": -10.949330782470497
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 22.48117753684437,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1248.0,
   "end_distance_m": 1348.0,
   "start_elevation_m": 193.19758735551034,
   "end_elevation_m": 215.6787648923547,
   "min_gradient_pct": -7.938989568777828
  }
 ],
 "shape": {
  "ascent_concentration": 0.444,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 275.0,
  "shape_class": "sustained"
 },
 "length_m": 1348.8721649568088,
 "start_elevation_m": 123.43757854353224,
 "end_elevation_m": 215.8331009140025,
 "endpoint_gain_m": 92.39552237047026,
 "overall_gradient_pct": 6.849835349180683,
 "accumulated_ascent_m": 106.79223669402724,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.729737890482397,
   "start_distance_m": 1297.0,
   "end_distance_m": 1302.0,
   "midpoint_distance_m": 1299.5,
   "start_elevation_m": 202.9095278382465,
   "end_elevation_m": 204.39601473277062,
   "start_xy": [
    542892.6577738784,
    4565129.185132916
   ],
   "end_xy": [
    542889.7728634021,
    4565125.101348942
   ]
  },
  "max_10m": {
   "gradient_pct": 29.459901435458846,
   "start_distance_m": 1292.0,
   "end_distance_m": 1302.0,
   "midpoint_distance_m": 1297.0,
   "start_elevation_m": 201.45002458922474,
   "end_elevation_m": 204.39601473277062,
   "start_xy": [
    542895.5426843548,
    4565133.26891689
   ],
   "end_xy": [
    542889.7728634021,
    4565125.101348942
   ]
  },
  "max_20m": {
   "gradient_pct": 28.82971311160489,
   "start_distance_m": 1286.0,
   "end_distance_m": 1306.0,
   "midpoint_distance_m": 1296.0,
   "start_elevation_m": 199.78904664842085,
   "end_elevation_m": 205.55498927074183,
   "start_xy": [
    542899.0045769264,
    4565138.169457658
   ],
   "end_xy": [
    542887.4649350211,
    4565121.834321763
   ]
  },
  "max_25m": {
   "gradient_pct": 28.582112143126665,
   "start_distance_m": 1285.0,
   "end_distance_m": 1310.0,
   "midpoint_distance_m": 1297.5,
   "start_elevation_m": 199.51661463178277,
   "end_elevation_m": 206.66214266756444,
   "start_xy": [
    542899.5815590216,
    4565138.986214453
   ],
   "end_xy": [
    542885.1485731406,
    4565118.5733053265
   ]
  },
  "max_50m": {
   "gradient_pct": 26.829028415463373,
   "start_distance_m": 1281.0,
   "end_distance_m": 1331.0,
   "midpoint_distance_m": 1306.0,
   "start_elevation_m": 198.5294724007488,
   "end_elevation_m": 211.9439866084805,
   "start_xy": [
    542901.8894874026,
    4565142.253241632
   ],
   "end_xy": [
    542872.5133999065,
    4565101.818337123
   ]
  },
  "max_100m": {
   "gradient_pct": 22.48117753684437,
   "start_distance_m": 1248.0,
   "end_distance_m": 1348.0,
   "midpoint_distance_m": 1298.0,
   "start_elevation_m": 193.19758735551034,
   "end_elevation_m": 215.6787648923547,
   "start_xy": [
    542920.9812471096,
    4565169.169033007
   ],
   "end_xy": [
    542861.7278701485,
    4565088.678359942
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.529917844044803,
   "start_distance_m": 327.0,
   "end_distance_m": 332.0,
   "midpoint_distance_m": 329.5,
   "start_elevation_m": 140.44913026121992,
   "end_elevation_m": 139.77263436901768,
   "start_xy": [
    543260.5109603488,
    4564589.4480153555
   ],
   "end_xy": [
    543262.1392676819,
    4564594.175424493
   ]
  },
  "min_10m": {
   "gradient_pct": -13.33914118240898,
   "start_distance_m": 322.0,
   "end_distance_m": 332.0,
   "midpoint_distance_m": 327.0,
   "start_elevation_m": 141.10654848725858,
   "end_elevation_m": 139.77263436901768,
   "start_xy": [
    543258.8812532348,
    4564584.721065523
   ],
   "end_xy": [
    543262.1392676819,
    4564594.175424493
   ]
  },
  "min_20m": {
   "gradient_pct": -12.729233501302701,
   "start_distance_m": 318.0,
   "end_distance_m": 338.0,
   "midpoint_distance_m": 328.0,
   "start_elevation_m": 141.57980174426905,
   "end_elevation_m": 139.0339550440085,
   "start_xy": [
    543257.5774875437,
    4564580.939505656
   ],
   "end_xy": [
    543264.0552714202,
    4564599.861277963
   ]
  },
  "min_25m": {
   "gradient_pct": -12.386438000834119,
   "start_distance_m": 315.0,
   "end_distance_m": 340.0,
   "midpoint_distance_m": 327.5,
   "start_elevation_m": 141.913319442028,
   "end_elevation_m": 138.81670994181948,
   "start_xy": [
    543256.5996632753,
    4564578.103335757
   ],
   "end_xy": [
    543264.693939333,
    4564601.756562453
   ]
  },
  "min_50m": {
   "gradient_pct": -10.949330782470497,
   "start_distance_m": 315.0,
   "end_distance_m": 365.0,
   "midpoint_distance_m": 340.0,
   "start_elevation_m": 141.913319442028,
   "end_elevation_m": 136.43865405079276,
   "start_xy": [
    543256.5996632753,
    4564578.103335757
   ],
   "end_xy": [
    543272.677288243,
    4564625.447618575
   ]
  },
  "min_100m": {
   "gradient_pct": -7.938989568777828,
   "start_distance_m": 300.0,
   "end_distance_m": 400.0,
   "midpoint_distance_m": 350.0,
   "start_elevation_m": 142.70684743976506,
   "end_elevation_m": 134.76785787098723,
   "start_xy": [
    543251.0257244597,
    4564564.181414133
   ],
   "end_xy": [
    543285.6399705455,
    4564657.958093545
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.983385919217653,
   "start_distance_m": 1300.0,
   "end_distance_m": 1302.0,
   "midpoint_distance_m": 1301.0,
   "start_elevation_m": 203.79634701438627,
   "end_elevation_m": 204.39601473277062,
   "start_xy": [
    542890.9268275927,
    4565126.734862532
   ],
   "end_xy": [
    542889.7728634021,
    4565125.101348942
   ]
  },
  "max_3m": {
   "gradient_pct": 29.914960847102634,
   "start_distance_m": 1298.0,
   "end_distance_m": 1301.0,
   "midpoint_distance_m": 1299.5,
   "start_elevation_m": 203.19954115636025,
   "end_elevation_m": 204.09698998177333,
   "start_xy": [
    542892.0807917832,
    4565128.368376122
   ],
   "end_xy": [
    542890.3498454974,
    4565125.918105737
   ]
  }
 },
 "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": 0.072,
   "obstruction_max_height_m": 24.29,
   "flagged_windows_m": [
    10,
    20,
    25,
    50,
    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/nj/USGS_1M_18_x54y457_NJ_NW_New_Jersey_6_County_Lidar_2017_B17.tif"
  ],
  "calculated_at": "2026-09-06T01:51:31+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-jersey-2026-09-06.osm.pbf",
  "osm_snapshot": "2026-09-04T20:21:21Z",
  "run_id": "nj-run2-260906",
  "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, NJ_NW_New_Jersey_6_County_Lidar_2017_B17 (collected 2017)",
  "elevation_tile_ids": [
   "x54y457"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NJ_NW6Co_2017",
   "ept_crs": "EPSG:3857",
   "station_coverage": 0.999,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Vernon",
  "county": "New Jersey"
 }
}