{
 "ocl_version": "0.1.0",
 "name": "Hawthorn Road",
 "slug": "hawthorn-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.75943165963105,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 718.0,
   "end_distance_m": 720.0,
   "start_elevation_m": 205.59067197774854,
   "end_elevation_m": 206.32586061094116,
   "min_gradient_pct": -17.32271442956943,
   "suppressed_max_gradient_pct": 72.34740778130941,
   "suppressed_location_m": [
    162.0,
    164.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.820186842484645,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 717.0,
   "end_distance_m": 720.0,
   "start_elevation_m": 205.31125500566662,
   "end_elevation_m": 206.32586061094116,
   "min_gradient_pct": -12.133755050305695,
   "suppressed_max_gradient_pct": 53.62862172896049,
   "suppressed_location_m": [
    161.0,
    164.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.90237231933304,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 775.0,
   "end_distance_m": 780.0,
   "start_elevation_m": 217.5018856145117,
   "end_elevation_m": 218.89700423047836,
   "min_gradient_pct": -4.359903312321762,
   "suppressed_max_gradient_pct": 40.58088527932,
   "suppressed_location_m": [
    734.0,
    739.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.274465392106094,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 775.0,
   "end_distance_m": 785.0,
   "start_elevation_m": 217.5018856145117,
   "end_elevation_m": 220.12933215372232,
   "min_gradient_pct": 3.3016840603639253,
   "suppressed_max_gradient_pct": 30.155167467534056,
   "suppressed_location_m": [
    730.0,
    740.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.332900657028347,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 767.0,
   "end_distance_m": 787.0,
   "start_elevation_m": 215.65792443741623,
   "end_elevation_m": 220.5245045688219,
   "min_gradient_pct": 3.318415991680297,
   "suppressed_max_gradient_pct": 24.639585807308748,
   "suppressed_location_m": [
    727.0,
    747.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.79404751296852,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 764.0,
   "end_distance_m": 789.0,
   "start_elevation_m": 215.13380401954498,
   "end_elevation_m": 220.8323158977871,
   "min_gradient_pct": 3.6116422968742654,
   "suppressed_max_gradient_pct": 23.854181007494276,
   "suppressed_location_m": [
    733.0,
    758.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.644613169631782,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 671.0,
   "end_distance_m": 721.0,
   "start_elevation_m": 197.20471568708018,
   "end_elevation_m": 206.52702227189607,
   "min_gradient_pct": 4.560312157656654,
   "suppressed_max_gradient_pct": 22.97576163383491,
   "suppressed_location_m": [
    734.0,
    784.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.882121890563269,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 630.0,
   "end_distance_m": 730.0,
   "start_elevation_m": 192.74332999559346,
   "end_elevation_m": 207.62545188615672,
   "min_gradient_pct": 6.372056551667441,
   "suppressed_max_gradient_pct": 20.814725109570276,
   "suppressed_location_m": [
    688.0,
    788.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.373,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 142.0,
  "shape_class": "sustained"
 },
 "length_m": 791.7788241656317,
 "start_elevation_m": 135.7192987976066,
 "end_elevation_m": 221.2087227972101,
 "endpoint_gain_m": 85.4894239996035,
 "overall_gradient_pct": 10.797134425726952,
 "accumulated_ascent_m": 86.26246073229095,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.90237231933304,
   "start_distance_m": 775.0,
   "end_distance_m": 780.0,
   "midpoint_distance_m": 777.5,
   "start_elevation_m": 217.5018856145117,
   "end_elevation_m": 218.89700423047836,
   "start_xy": [
    407509.6235030723,
    414550.3136677886
   ],
   "end_xy": [
    407512.6985680485,
    414554.2437884805
   ]
  },
  "max_10m": {
   "gradient_pct": 26.274465392106094,
   "start_distance_m": 775.0,
   "end_distance_m": 785.0,
   "midpoint_distance_m": 780.0,
   "start_elevation_m": 217.5018856145117,
   "end_elevation_m": 220.12933215372232,
   "start_xy": [
    407509.6235030723,
    414550.3136677886
   ],
   "end_xy": [
    407512.78463307966,
    414559.2206637173
   ]
  },
  "max_20m": {
   "gradient_pct": 24.332900657028347,
   "start_distance_m": 767.0,
   "end_distance_m": 787.0,
   "midpoint_distance_m": 777.0,
   "start_elevation_m": 215.65792443741623,
   "end_elevation_m": 220.5245045688219,
   "start_xy": [
    407503.89988828765,
    414544.7623374788
   ],
   "end_xy": [
    407512.73062577157,
    414561.21993438684
   ]
  },
  "max_25m": {
   "gradient_pct": 22.79404751296852,
   "start_distance_m": 764.0,
   "end_distance_m": 789.0,
   "midpoint_distance_m": 776.5,
   "start_elevation_m": 215.13380401954498,
   "end_elevation_m": 220.8323158977871,
   "start_xy": [
    407501.6085098603,
    414542.82595400506
   ],
   "end_xy": [
    407512.67664308863,
    414563.2192057215
   ]
  },
  "max_50m": {
   "gradient_pct": 18.644613169631782,
   "start_distance_m": 671.0,
   "end_distance_m": 721.0,
   "midpoint_distance_m": 696.0,
   "start_elevation_m": 197.20471568708018,
   "end_elevation_m": 206.52702227189607,
   "start_xy": [
    407498.8899315074,
    414459.36585654836
   ],
   "end_xy": [
    407484.77317214524,
    414505.75126555876
   ]
  },
  "max_100m": {
   "gradient_pct": 14.882121890563269,
   "start_distance_m": 630.0,
   "end_distance_m": 730.0,
   "midpoint_distance_m": 680.0,
   "start_elevation_m": 192.74332999559346,
   "end_elevation_m": 207.62545188615672,
   "start_xy": [
    407527.23089473456,
    414431.66216399695
   ],
   "end_xy": [
    407484.24872481,
    414514.73503885564
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.359903312321762,
   "start_distance_m": 164.0,
   "end_distance_m": 169.0,
   "midpoint_distance_m": 166.5,
   "start_elevation_m": 152.9032961735343,
   "end_elevation_m": 152.6853010079182,
   "start_xy": [
    407766.66882345924,
    414069.31613858225
   ],
   "end_xy": [
    407763.15897782904,
    414072.843205435
   ]
  },
  "min_10m": {
   "gradient_pct": 3.3016840603639253,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 135.7192987976066,
   "end_elevation_m": 136.049467203643,
   "start_xy": [
    407893.547,
    413979.3
   ],
   "end_xy": [
    407883.5838778432,
    413980.15801041457
   ]
  },
  "min_20m": {
   "gradient_pct": 3.318415991680297,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 135.7192987976066,
   "end_elevation_m": 136.38298199594266,
   "start_xy": [
    407893.547,
    413979.3
   ],
   "end_xy": [
    407873.7777047778,
    413982.06006436265
   ]
  },
  "min_25m": {
   "gradient_pct": 3.6116422968742654,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 135.7192987976066,
   "end_elevation_m": 136.62220937182516,
   "start_xy": [
    407893.547,
    413979.3
   ],
   "end_xy": [
    407869.07630835223,
    413983.7278737954
   ]
  },
  "min_50m": {
   "gradient_pct": 4.560312157656654,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 135.7192987976066,
   "end_elevation_m": 137.99945487643492,
   "start_xy": [
    407893.547,
    413979.3
   ],
   "end_xy": [
    407845.9422283606,
    413993.2049065349
   ]
  },
  "min_100m": {
   "gradient_pct": 6.372056551667441,
   "start_distance_m": 219.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 269.0,
   "start_elevation_m": 159.14241003305924,
   "end_elevation_m": 165.51446658472668,
   "start_xy": [
    407729.88634411595,
    414110.15672118013
   ],
   "end_xy": [
    407656.6242835936,
    414178.10546085116
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.75943165963105,
   "start_distance_m": 718.0,
   "end_distance_m": 720.0,
   "midpoint_distance_m": 719.0,
   "start_elevation_m": 205.59067197774854,
   "end_elevation_m": 206.32586061094116,
   "start_xy": [
    407484.9571935605,
    414502.75691519084
   ],
   "end_xy": [
    407484.8341805344,
    414504.7531283055
   ]
  },
  "max_3m": {
   "gradient_pct": 33.820186842484645,
   "start_distance_m": 717.0,
   "end_distance_m": 720.0,
   "midpoint_distance_m": 718.5,
   "start_elevation_m": 205.31125500566662,
   "end_elevation_m": 206.32586061094116,
   "start_xy": [
    407485.0182019497,
    414501.7587779375
   ],
   "end_xy": [
    407484.8341805344,
    414504.7531283055
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.057,
   "windows_resited": [
    2.0,
    3.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.095,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 733.0,
     "end_m": 758.0,
     "raw_pct": 23.85,
     "reason": "staircase"
    },
    {
     "window_m": 5.0,
     "start_m": 734.0,
     "end_m": 739.0,
     "raw_pct": 40.58,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.023,
   "obstruction_max_height_m": 8.59,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    151.0,
    195.0
   ],
   [
    731.0,
    760.0
   ]
  ],
  "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/england/bulk_dtm_1m/SE0510.tif"
  ],
  "calculated_at": "2026-09-12T01:37:47+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk05.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-england-260912",
  "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": [
   "SE0510.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Slaithwaite",
  "county": ""
 }
}