{
 "ocl_version": "0.1.0",
 "name": "Love Lane",
 "slug": "love-lane",
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 41.493854930584995,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 261.0,
   "end_distance_m": 263.0,
   "start_elevation_m": 31.665454248306165,
   "end_elevation_m": 32.495331346917865,
   "min_gradient_pct": -33.592498137511484,
   "suppressed_max_gradient_pct": 50.58977006579717,
   "suppressed_location_m": [
    370.0,
    372.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.328455375232714,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 260.0,
   "end_distance_m": 263.0,
   "start_elevation_m": 31.405477685660884,
   "end_elevation_m": 32.495331346917865,
   "min_gradient_pct": -20.12746292560384,
   "suppressed_max_gradient_pct": 44.514611067637354,
   "suppressed_location_m": [
    369.0,
    372.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.788995675893148,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure",
    "structure_excluded"
   ],
   "start_distance_m": 259.0,
   "end_distance_m": 264.0,
   "start_elevation_m": 31.263063317797666,
   "end_elevation_m": 32.702513101592324,
   "min_gradient_pct": -10.690881922199083,
   "suppressed_max_gradient_pct": 35.85109275174517,
   "suppressed_location_m": [
    367.0,
    372.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.469093090916857,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 254.0,
   "end_distance_m": 264.0,
   "start_elevation_m": 30.355603792500638,
   "end_elevation_m": 32.702513101592324,
   "min_gradient_pct": -0.009657501950126601
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.115339385750058,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 244.0,
   "end_distance_m": 264.0,
   "start_elevation_m": 28.479445224442312,
   "end_elevation_m": 32.702513101592324,
   "min_gradient_pct": 2.383041933563934
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.661372493292575,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 239.0,
   "end_distance_m": 264.0,
   "start_elevation_m": 27.53716997826918,
   "end_elevation_m": 32.702513101592324,
   "min_gradient_pct": 2.6550837987212286
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.46893768487103,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 217.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 23.893086561418006,
   "end_elevation_m": 33.12755540385352,
   "min_gradient_pct": 2.7675554454660336
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.11449063424643,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 195.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 20.816713198631312,
   "end_elevation_m": 36.93120383287774,
   "min_gradient_pct": 4.24782589373736
  }
 ],
 "length_m": 380.19434894136185,
 "start_elevation_m": 8.466182259748688,
 "end_elevation_m": 44.50281180992647,
 "endpoint_gain_m": 36.03662955017778,
 "overall_gradient_pct": 9.478475850711758,
 "accumulated_ascent_m": 37.4524673464296,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.788995675893148,
   "start_distance_m": 259.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 261.5,
   "start_elevation_m": 31.263063317797666,
   "end_elevation_m": 32.702513101592324,
   "start_xy": [
    272674.46288921224,
    317588.82783445466
   ],
   "end_xy": [
    272676.19057983794,
    317584.13581089315
   ]
  },
  "max_10m": {
   "gradient_pct": 23.469093090916857,
   "start_distance_m": 254.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 259.0,
   "start_elevation_m": 30.355603792500638,
   "end_elevation_m": 32.702513101592324,
   "start_xy": [
    272672.7351985865,
    317593.51985801617
   ],
   "end_xy": [
    272676.19057983794,
    317584.13581089315
   ]
  },
  "max_20m": {
   "gradient_pct": 21.115339385750058,
   "start_distance_m": 244.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 254.0,
   "start_elevation_m": 28.479445224442312,
   "end_elevation_m": 32.702513101592324,
   "start_xy": [
    272669.9291875837,
    317603.0985350337
   ],
   "end_xy": [
    272676.19057983794,
    317584.13581089315
   ]
  },
  "max_25m": {
   "gradient_pct": 20.661372493292575,
   "start_distance_m": 239.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 251.5,
   "start_elevation_m": 27.53716997826918,
   "end_elevation_m": 32.702513101592324,
   "start_xy": [
    272668.7912988271,
    317607.967334596
   ],
   "end_xy": [
    272676.19057983794,
    317584.13581089315
   ]
  },
  "max_50m": {
   "gradient_pct": 18.46893768487103,
   "start_distance_m": 217.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 242.0,
   "start_elevation_m": 23.893086561418006,
   "end_elevation_m": 33.12755540385352,
   "start_xy": [
    272668.5456647197,
    317629.9045841111
   ],
   "end_xy": [
    272677.2271942134,
    317581.32059675624
   ]
  },
  "max_100m": {
   "gradient_pct": 16.11449063424643,
   "start_distance_m": 195.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 245.0,
   "start_elevation_m": 20.816713198631312,
   "end_elevation_m": 36.93120383287774,
   "start_xy": [
    272670.4216963205,
    317651.81678767153
   ],
   "end_xy": [
    272692.5644294882,
    317557.94396732445
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -10.690881922199083,
   "start_distance_m": 372.0,
   "end_distance_m": 377.0,
   "midpoint_distance_m": 374.5,
   "start_elevation_m": 44.21766951512963,
   "end_elevation_m": 43.683125419019674,
   "start_xy": [
    272729.7271736376,
    317494.4562652782
   ],
   "end_xy": [
    272728.3328141504,
    317489.6546237235
   ]
  },
  "min_10m": {
   "gradient_pct": -0.009657501950126601,
   "start_distance_m": 120.0,
   "end_distance_m": 130.0,
   "midpoint_distance_m": 125.0,
   "start_elevation_m": 13.65445872911146,
   "end_elevation_m": 13.653492978916447,
   "start_xy": [
    272695.73158074013,
    317702.2917889288
   ],
   "end_xy": [
    272701.1021370254,
    317698.104886373
   ]
  },
  "min_20m": {
   "gradient_pct": 2.383041933563934,
   "start_distance_m": 33.0,
   "end_distance_m": 53.0,
   "midpoint_distance_m": 43.0,
   "start_elevation_m": 9.431480866986917,
   "end_elevation_m": 9.908089253699703,
   "start_xy": [
    272638.5784238071,
    317746.96437110845
   ],
   "end_xy": [
    272637.648415074,
    317728.302549145
   ]
  },
  "min_25m": {
   "gradient_pct": 2.6550837987212286,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 8.466182259748688,
   "end_elevation_m": 9.129953209428995,
   "start_xy": [
    272658.225,
    317773.042
   ],
   "end_xy": [
    272642.7949145369,
    317753.76298905077
   ]
  },
  "min_50m": {
   "gradient_pct": 2.7675554454660336,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 8.466182259748688,
   "end_elevation_m": 9.849959982481705,
   "start_xy": [
    272658.225,
    317773.042
   ],
   "end_xy": [
    272637.0171168856,
    317731.23537416494
   ]
  },
  "min_100m": {
   "gradient_pct": 4.24782589373736,
   "start_distance_m": 10.0,
   "end_distance_m": 110.0,
   "midpoint_distance_m": 60.0,
   "start_elevation_m": 8.773662818941673,
   "end_elevation_m": 13.021488712679034,
   "start_xy": [
    272650.70083465526,
    317766.51039769256
   ],
   "end_xy": [
    272686.88133494323,
    317706.915139277
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 41.493854930584995,
   "start_distance_m": 261.0,
   "end_distance_m": 263.0,
   "midpoint_distance_m": 262.0,
   "start_elevation_m": 31.665454248306165,
   "end_elevation_m": 32.495331346917865,
   "start_xy": [
    272675.1539654625,
    317586.95102503005
   ],
   "end_xy": [
    272675.8450417128,
    317585.07421560545
   ]
  },
  "max_3m": {
   "gradient_pct": 36.328455375232714,
   "start_distance_m": 260.0,
   "end_distance_m": 263.0,
   "midpoint_distance_m": 261.5,
   "start_elevation_m": 31.405477685660884,
   "end_elevation_m": 32.495331346917865,
   "start_xy": [
    272674.8084273374,
    317587.88942974235
   ],
   "end_xy": [
    272675.8450417128,
    317585.07421560545
   ]
  }
 },
 "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": 0.084,
   "obstruction_max_height_m": 4.62,
   "flagged_windows_m": [
    5
   ]
  },
  "structure_suppression": {
   "masked_fraction": 0.016,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "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:27700",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/wales/dtm_1m/wg_del_22_272317_20220114dtm.tif"
  ],
  "calculated_at": "2026-08-12T01:12:21+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/wales-2026-08-11.osm.pbf",
  "osm_snapshot": "2026-08-10T20:21:40Z",
  "elevation_provider": "Welsh Government",
  "elevation_dataset": "Welsh Government LiDAR 1m DTM (2020-2023)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Crown copyright Welsh Government",
  "elevation_catalogue_layer": "geonode:welsh_government_lidar_tile_catalogue_2020_2023",
  "elevation_tile_ids": [
   "wg_del_22_272317_20220114dtm.tif"
  ],
  "elevation_capture_dates": [
   "14-01-2022"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 13.6% over 200 m (Terrain 50), gain 27.4 m over 211 m way. EXTENDED by graph walk: +3 segment(s) at base, +1 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting."
 },
 "area": {
  "place": "Dolgellau",
  "county": "Gwynedd - Gwynedd"
 },
 "reported_claims": [],
 "confidence": "B",
 "shape": {
  "ascent_concentration": 0.425,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 105.0,
  "shape_class": "sustained"
 }
}