{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (54.1924, -6.3316)",
 "slug": "discovered-lane-54-1924-6-3316",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.287780508182593,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 89.0,
   "end_distance_m": 91.0,
   "start_elevation_m": 56.303036197541964,
   "end_elevation_m": 56.888791807705616,
   "min_gradient_pct": -7.313812011305032
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.16120199657802,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 88.0,
   "end_distance_m": 91.0,
   "start_elevation_m": 56.013955747808275,
   "end_elevation_m": 56.888791807705616,
   "min_gradient_pct": -5.707474794122902
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.997722686849414,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 88.0,
   "end_distance_m": 93.0,
   "start_elevation_m": 56.013955747808275,
   "end_elevation_m": 57.463841882150746,
   "min_gradient_pct": -2.5094857608857524
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.428482506394698,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 84.0,
   "end_distance_m": 94.0,
   "start_elevation_m": 54.87650749933256,
   "end_elevation_m": 57.71935574997203,
   "min_gradient_pct": 2.7687648468596393
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 27.614700348280756,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 78.0,
   "end_distance_m": 98.0,
   "start_elevation_m": 53.27283004617735,
   "end_elevation_m": 58.7957701158335,
   "min_gradient_pct": 4.514445863191128
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 27.436771987004363,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 77.0,
   "end_distance_m": 102.0,
   "start_elevation_m": 53.00826507903864,
   "end_elevation_m": 59.86745807578973,
   "min_gradient_pct": 6.953425943234777
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 25.640528335556567,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 59.0,
   "end_distance_m": 109.0,
   "start_elevation_m": 48.7163044580661,
   "end_elevation_m": 61.53656862584438,
   "min_gradient_pct": 16.493774464675198
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 23.50958399427015,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 14.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 39.02196298330923,
   "end_elevation_m": 62.53154697757938,
   "min_gradient_pct": 20.391154592727815
  }
 ],
 "shape": {
  "ascent_concentration": 0.343,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 123.0,
  "shape_class": "sustained"
 },
 "length_m": 136.54032549504242,
 "start_elevation_m": 37.44373504638667,
 "end_elevation_m": 63.69961861755362,
 "endpoint_gain_m": 26.255883571166947,
 "overall_gradient_pct": 19.22939869666581,
 "accumulated_ascent_m": 26.48717534541663,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.997722686849414,
   "start_distance_m": 88.0,
   "end_distance_m": 93.0,
   "midpoint_distance_m": 90.5,
   "start_elevation_m": 56.013955747808275,
   "end_elevation_m": 57.463841882150746,
   "start_xy": [
    308962.554278502,
    328327.48040395003
   ],
   "end_xy": [
    308967.5303179429,
    328327.9693124107
   ]
  },
  "max_10m": {
   "gradient_pct": 28.428482506394698,
   "start_distance_m": 84.0,
   "end_distance_m": 94.0,
   "midpoint_distance_m": 89.0,
   "start_elevation_m": 54.87650749933256,
   "end_elevation_m": 57.71935574997203,
   "start_xy": [
    308958.5734469493,
    328327.08927718154
   ],
   "end_xy": [
    308968.5255258311,
    328328.0670941028
   ]
  },
  "max_20m": {
   "gradient_pct": 27.614700348280756,
   "start_distance_m": 78.0,
   "end_distance_m": 98.0,
   "midpoint_distance_m": 88.0,
   "start_elevation_m": 53.27283004617735,
   "end_elevation_m": 58.7957701158335,
   "start_xy": [
    308952.6021996203,
    328326.5025870288
   ],
   "end_xy": [
    308972.5063573838,
    328328.45822087134
   ]
  },
  "max_25m": {
   "gradient_pct": 27.436771987004363,
   "start_distance_m": 77.0,
   "end_distance_m": 102.0,
   "midpoint_distance_m": 89.5,
   "start_elevation_m": 53.00826507903864,
   "end_elevation_m": 59.86745807578973,
   "start_xy": [
    308951.6080104316,
    328326.395188937
   ],
   "end_xy": [
    308976.48718893644,
    328328.8493476398
   ]
  },
  "max_50m": {
   "gradient_pct": 25.640528335556567,
   "start_distance_m": 59.0,
   "end_distance_m": 109.0,
   "midpoint_distance_m": 84.0,
   "start_elevation_m": 48.7163044580661,
   "end_elevation_m": 61.53656862584438,
   "start_xy": [
    308933.72309700836,
    328324.36298032466
   ],
   "end_xy": [
    308983.4536441537,
    328329.5338194847
   ]
  },
  "max_100m": {
   "gradient_pct": 23.50958399427015,
   "start_distance_m": 14.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 64.0,
   "start_elevation_m": 39.02196298330923,
   "end_elevation_m": 62.53154697757938,
   "start_xy": [
    308888.8830419928,
    328320.8528661902
   ],
   "end_xy": [
    308988.42968359456,
    328330.02272794535
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.5094857608857524,
   "start_distance_m": 131.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 133.5,
   "start_elevation_m": 63.81651402962959,
   "end_elevation_m": 63.6910397415853,
   "start_xy": [
    309004.43479709944,
    328335.57749805436
   ],
   "end_xy": [
    309009.1088933283,
    328337.35311750794
   ]
  },
  "min_10m": {
   "gradient_pct": 2.7687648468596393,
   "start_distance_m": 126.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 131.0,
   "start_elevation_m": 63.414163256899336,
   "end_elevation_m": 63.6910397415853,
   "start_xy": [
    308999.76070087065,
    328333.80187860085
   ],
   "end_xy": [
    309009.1088933283,
    328337.35311750794
   ]
  },
  "min_20m": {
   "gradient_pct": 4.514445863191128,
   "start_distance_m": 116.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 126.0,
   "start_elevation_m": 62.788150568947074,
   "end_elevation_m": 63.6910397415853,
   "start_xy": [
    308990.412508413,
    328330.25063969375
   ],
   "end_xy": [
    309009.1088933283,
    328337.35311750794
   ]
  },
  "min_25m": {
   "gradient_pct": 6.953425943234777,
   "start_distance_m": 111.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 123.5,
   "start_elevation_m": 61.952683255776606,
   "end_elevation_m": 63.6910397415853,
   "start_xy": [
    308985.44405993004,
    328329.729382869
   ],
   "end_xy": [
    309009.1088933283,
    328337.35311750794
   ]
  },
  "min_50m": {
   "gradient_pct": 16.493774464675198,
   "start_distance_m": 86.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 111.0,
   "start_elevation_m": 55.4441525092477,
   "end_elevation_m": 63.6910397415853,
   "start_xy": [
    308960.5638627257,
    328327.2848405658
   ],
   "end_xy": [
    309009.1088933283,
    328337.35311750794
   ]
  },
  "min_100m": {
   "gradient_pct": 20.391154592727815,
   "start_distance_m": 36.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 86.0,
   "start_elevation_m": 43.299885148857484,
   "end_elevation_m": 63.6910397415853,
   "start_xy": [
    308910.85639369575,
    328321.9353702033
   ],
   "end_xy": [
    309009.1088933283,
    328337.35311750794
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.287780508182593,
   "start_distance_m": 89.0,
   "end_distance_m": 91.0,
   "midpoint_distance_m": 90.0,
   "start_elevation_m": 56.303036197541964,
   "end_elevation_m": 56.888791807705616,
   "start_xy": [
    308963.5494863902,
    328327.5781856422
   ],
   "end_xy": [
    308965.5399021666,
    328327.7737490264
   ]
  },
  "max_3m": {
   "gradient_pct": 29.16120199657802,
   "start_distance_m": 88.0,
   "end_distance_m": 91.0,
   "midpoint_distance_m": 89.5,
   "start_elevation_m": 56.013955747808275,
   "end_elevation_m": 56.888791807705616,
   "start_xy": [
    308962.554278502,
    328327.48040395003
   ],
   "end_xy": [
    308965.5399021666,
    328327.7737490264
   ]
  }
 },
 "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": {
  "review": [],
  "extent": [
   "may_start_earlier",
   "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:29902",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/ni/newry-2010/dtm/308328.asc",
   "data/cache/ni/newry-2010/dtm/309328.asc"
  ],
  "calculated_at": "2026-08-19T00:22:22+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "/root/ni-survey/ireland-and-northern-ireland-2026-08-18.osm.pbf",
  "osm_snapshot": "2026-08-17T20:21:36Z",
  "elevation_provider": "OpenDataNI (OSNI / DfI Rivers River Basin LiDAR)",
  "elevation_licence": "Open Government Licence v3 \u2014 Crown copyright; Belfast City 2006 data \u00a9 Cyient Europe Ltd, published as open data by DfI",
  "elevation_dataset": "OSNI/DfI Rivers River Basin LiDAR 1 m DTM \u2014 Newry (March 2010)",
  "elevation_tile_ids": [
   "308328",
   "309328"
  ],
  "climb_origin": "discovered",
  "notes": "KEPT at seed extent: no ascending continuation (min_avg=2.0%). Adopted 2026-08-18 (NI launch set \u2014 see docs/ni-coverage-survey.md)."
 },
 "area": {
  "place": "Newry",
  "county": "County Down"
 }
}