{
 "ocl_version": "0.1.0",
 "name": "The Raikes",
 "slug": "the-raikes-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.305100074565303,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 171.0,
   "end_distance_m": 173.0,
   "start_elevation_m": 201.82797190545122,
   "end_elevation_m": 202.37407390694253,
   "min_gradient_pct": -2.6333474550767733
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.33232837569422,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 169.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 201.28512930905842,
   "end_elevation_m": 202.10509916032925,
   "min_gradient_pct": -2.14671728327005
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.384312600536077,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 169.0,
   "end_distance_m": 174.0,
   "start_elevation_m": 201.28512930905842,
   "end_elevation_m": 202.60434493908522,
   "min_gradient_pct": -1.3968639811105277
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.401700948150904,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 164.0,
   "end_distance_m": 174.0,
   "start_elevation_m": 200.46417484427013,
   "end_elevation_m": 202.60434493908522,
   "min_gradient_pct": -1.0603446770139158
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.271849567419338,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 155.0,
   "end_distance_m": 175.0,
   "start_elevation_m": 198.70235458804004,
   "end_elevation_m": 202.7567245015239,
   "min_gradient_pct": -0.8886549591576909
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.0464470593663,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 235.0,
   "end_distance_m": 260.0,
   "start_elevation_m": 211.59813507190705,
   "end_elevation_m": 216.60974683674863,
   "min_gradient_pct": -0.739861737331239
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.77612222337683,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 220.0,
   "end_distance_m": 270.0,
   "start_elevation_m": 208.72210174017414,
   "end_elevation_m": 218.61016285186255,
   "min_gradient_pct": -0.4210145817384614
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.598776291139814,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 203.0,
   "end_distance_m": 303.0,
   "start_elevation_m": 205.8414774239031,
   "end_elevation_m": 223.4402537150429,
   "min_gradient_pct": 0.7567699105226211
  }
 ],
 "shape": {
  "ascent_concentration": 0.506,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 180.0,
  "shape_class": "stepped"
 },
 "length_m": 928.3794275268417,
 "start_elevation_m": 177.83321033752185,
 "end_elevation_m": 250.5948009262695,
 "endpoint_gain_m": 72.76159058874765,
 "overall_gradient_pct": 7.837484161253017,
 "accumulated_ascent_m": 73.38293254058965,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.384312600536077,
   "start_distance_m": 169.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 171.5,
   "start_elevation_m": 201.28512930905842,
   "end_elevation_m": 202.60434493908522,
   "start_xy": [
    418336.93945033895,
    465025.5073584955
   ],
   "end_xy": [
    418332.590401168,
    465027.97429254797
   ]
  },
  "max_10m": {
   "gradient_pct": 21.401700948150904,
   "start_distance_m": 164.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 169.0,
   "start_elevation_m": 200.46417484427013,
   "end_elevation_m": 202.60434493908522,
   "start_xy": [
    418341.28868022526,
    465023.04074249277
   ],
   "end_xy": [
    418332.590401168,
    465027.97429254797
   ]
  },
  "max_20m": {
   "gradient_pct": 20.271849567419338,
   "start_distance_m": 155.0,
   "end_distance_m": 175.0,
   "midpoint_distance_m": 165.0,
   "start_elevation_m": 198.70235458804004,
   "end_elevation_m": 202.7567245015239,
   "start_xy": [
    418348.6308254412,
    465017.97650981456
   ],
   "end_xy": [
    418331.72063995275,
    465028.46776536014
   ]
  },
  "max_25m": {
   "gradient_pct": 20.0464470593663,
   "start_distance_m": 235.0,
   "end_distance_m": 260.0,
   "midpoint_distance_m": 247.5,
   "start_elevation_m": 211.59813507190705,
   "end_elevation_m": 216.60974683674863,
   "start_xy": [
    418284.81811321725,
    465064.40316454874
   ],
   "end_xy": [
    418279.5417264285,
    465088.6119716546
   ]
  },
  "max_50m": {
   "gradient_pct": 19.77612222337683,
   "start_distance_m": 220.0,
   "end_distance_m": 270.0,
   "midpoint_distance_m": 245.0,
   "start_elevation_m": 208.72210174017414,
   "end_elevation_m": 218.61016285186255,
   "start_xy": [
    418293.82920932194,
    465052.54351798975
   ],
   "end_xy": [
    418280.862546727,
    465098.46648882504
   ]
  },
  "max_100m": {
   "gradient_pct": 17.598776291139814,
   "start_distance_m": 203.0,
   "end_distance_m": 303.0,
   "midpoint_distance_m": 253.0,
   "start_elevation_m": 205.8414774239031,
   "end_elevation_m": 223.4402537150429,
   "start_xy": [
    418307.4708397387,
    465042.4509429264
   ],
   "end_xy": [
    418291.3831319013,
    465129.68930405634
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.3968639811105277,
   "start_distance_m": 906.0,
   "end_distance_m": 911.0,
   "midpoint_distance_m": 908.5,
   "start_elevation_m": 250.76659919057005,
   "end_elevation_m": 250.69675599151452,
   "start_xy": [
    418835.051306841,
    465269.77049952
   ],
   "end_xy": [
    418839.3076747302,
    465272.3941095574
   ]
  },
  "min_10m": {
   "gradient_pct": -1.0603446770139158,
   "start_distance_m": 905.0,
   "end_distance_m": 915.0,
   "midpoint_distance_m": 910.0,
   "start_elevation_m": 250.77700939151066,
   "end_elevation_m": 250.67097492380927,
   "start_xy": [
    418834.1999446892,
    465269.2459212892
   ],
   "end_xy": [
    418842.7126930169,
    465274.49312083883
   ]
  },
  "min_20m": {
   "gradient_pct": -0.8886549591576909,
   "start_distance_m": 904.0,
   "end_distance_m": 924.0,
   "midpoint_distance_m": 914.0,
   "start_elevation_m": 250.79116056674633,
   "end_elevation_m": 250.6134295749148,
   "start_xy": [
    418833.3487122034,
    465268.72113267536
   ],
   "end_xy": [
    418850.3739620853,
    465279.21593200084
   ]
  },
  "min_25m": {
   "gradient_pct": -0.739861737331239,
   "start_distance_m": 903.0,
   "end_distance_m": 928.0,
   "midpoint_distance_m": 915.5,
   "start_elevation_m": 250.78045286120073,
   "end_elevation_m": 250.59548742686792,
   "start_xy": [
    418832.4974604234,
    465268.1963752609
   ],
   "end_xy": [
    418853.7789461592,
    465281.31499883404
   ]
  },
  "min_50m": {
   "gradient_pct": -0.4210145817384614,
   "start_distance_m": 877.0,
   "end_distance_m": 927.0,
   "midpoint_distance_m": 902.0,
   "start_elevation_m": 250.80809138333333,
   "end_elevation_m": 250.5975840924641,
   "start_xy": [
    418810.3648166148,
    465254.5528424279
   ],
   "end_xy": [
    418852.92774787714,
    465280.7901546833
   ]
  },
  "min_100m": {
   "gradient_pct": 0.7567699105226211,
   "start_distance_m": 828.0,
   "end_distance_m": 928.0,
   "midpoint_distance_m": 878.0,
   "start_elevation_m": 249.8387175163453,
   "end_elevation_m": 250.59548742686792,
   "start_xy": [
    418768.65308957966,
    465228.84036548686
   ],
   "end_xy": [
    418853.7789461592,
    465281.31499883404
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.305100074565303,
   "start_distance_m": 171.0,
   "end_distance_m": 173.0,
   "midpoint_distance_m": 172.0,
   "start_elevation_m": 201.82797190545122,
   "end_elevation_m": 202.37407390694253,
   "start_xy": [
    418335.2000156312,
    465026.49445780896
   ],
   "end_xy": [
    418333.46040052053,
    465027.48123970506
   ]
  },
  "max_3m": {
   "gradient_pct": 27.33232837569422,
   "start_distance_m": 169.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 170.5,
   "start_elevation_m": 201.28512930905842,
   "end_elevation_m": 202.10509916032925,
   "start_xy": [
    418336.93945033895,
    465025.5073584955
   ],
   "end_xy": [
    418334.3300338877,
    465026.98754167755
   ]
  }
 },
 "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": 0.012,
   "obstruction_max_height_m": 7.33,
   "flagged_windows_m": []
  },
  "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:27700",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/england/bulk_dtm_1m/SE1560.tif",
   "data/cache/england/bulk_dtm_1m/SE1565.tif"
  ],
  "calculated_at": "2026-08-19T18:49:34+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/england-2026-08-12.osm.pbf",
  "osm_snapshot": "2026-08-12T20:21:46Z",
  "elevation_provider": "Environment Agency",
  "elevation_dataset": "EA LIDAR Composite DTM 1m (2022)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Environment Agency",
  "elevation_coverage_id": "13787b9a-26a4-4775-8523-806d13af58fc__Lidar_Composite_Elevation_DTM_1m",
  "elevation_tile_ids": [
   "SE1560.tif",
   "SE1565.tif"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 14.1% over 200 m (Terrain 50), gain 20.3 m over 144 m way. EXTENDED by graph walk: +0 segment(s) at base, +3 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. DEDUPE: absorbed 1 overlapping proposal(s): the-raikes-3 ADOPTED (England launch slice 2026-08-16): clean-steep."
 },
 "area": {
  "place": "Wilsill",
  "county": "North Yorkshire"
 }
}