{
 "ocl_version": "0.1.0",
 "name": "Red Road",
 "slug": "red-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 51.45922593207217,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 834.0,
   "end_distance_m": 836.0,
   "start_elevation_m": 50.389932727420316,
   "end_elevation_m": 51.41911724606176,
   "min_gradient_pct": -55.93615485468462,
   "suppressed_max_gradient_pct": 100.12843489074008,
   "suppressed_location_m": [
    847.0,
    849.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 35.62047494830125,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 834.0,
   "end_distance_m": 837.0,
   "start_elevation_m": 50.389932727420316,
   "end_elevation_m": 51.45854697586935,
   "min_gradient_pct": -39.34992356076634,
   "suppressed_max_gradient_pct": 77.53802797960508,
   "suppressed_location_m": [
    847.0,
    850.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.56814131753515,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 834.0,
   "end_distance_m": 839.0,
   "start_elevation_m": 50.389932727420316,
   "end_elevation_m": 51.76833979329707,
   "min_gradient_pct": -24.582874938950283,
   "suppressed_max_gradient_pct": 57.32478321820054,
   "suppressed_location_m": [
    847.0,
    852.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.283391960337866,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 857.0,
   "end_distance_m": 867.0,
   "start_elevation_m": 54.816897220668494,
   "end_elevation_m": 57.04523641670228,
   "min_gradient_pct": -11.758667499531441,
   "suppressed_max_gradient_pct": 39.42315920958826,
   "suppressed_location_m": [
    847.0,
    857.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 17.270239880534284,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 759.0,
   "end_distance_m": 779.0,
   "start_elevation_m": 40.439829349184926,
   "end_elevation_m": 43.89387732529178,
   "min_gradient_pct": -10.485372983373509,
   "suppressed_max_gradient_pct": 30.853275584963065,
   "suppressed_location_m": [
    847.0,
    867.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 16.695099680633973,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 758.0,
   "end_distance_m": 783.0,
   "start_elevation_m": 40.25867742394388,
   "end_elevation_m": 44.43245234410237,
   "min_gradient_pct": -9.589415674664963,
   "suppressed_max_gradient_pct": 24.947319173649703,
   "suppressed_location_m": [
    847.0,
    872.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.907156360585248,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 747.0,
   "end_distance_m": 797.0,
   "start_elevation_m": 38.61807005382883,
   "end_elevation_m": 46.071648234121454,
   "min_gradient_pct": -7.394894772434839,
   "suppressed_max_gradient_pct": 22.76201238949831,
   "suppressed_location_m": [
    847.0,
    897.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.052507318707562,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 743.0,
   "end_distance_m": 843.0,
   "start_elevation_m": 38.19600094410738,
   "end_elevation_m": 52.248508262814944,
   "min_gradient_pct": -2.8319376309609083,
   "suppressed_max_gradient_pct": 16.50616433959143,
   "suppressed_location_m": [
    804.0,
    904.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.395,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 92.0,
  "shape_class": "sustained"
 },
 "length_m": 2146.7275490770417,
 "start_elevation_m": 17.707637348021482,
 "end_elevation_m": 121.78635304168776,
 "endpoint_gain_m": 104.07871569366628,
 "overall_gradient_pct": 4.848249874019347,
 "accumulated_ascent_m": 137.9934679637553,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.56814131753515,
   "start_distance_m": 834.0,
   "end_distance_m": 839.0,
   "midpoint_distance_m": 836.5,
   "start_elevation_m": 50.389932727420316,
   "end_elevation_m": 51.76833979329707,
   "start_xy": [
    233300.0044549794,
    679379.8562719213
   ],
   "end_xy": [
    233305.0021041554,
    679380.0095592289
   ]
  },
  "max_10m": {
   "gradient_pct": 22.283391960337866,
   "start_distance_m": 857.0,
   "end_distance_m": 867.0,
   "midpoint_distance_m": 862.0,
   "start_elevation_m": 54.816897220668494,
   "end_elevation_m": 57.04523641670228,
   "start_xy": [
    233322.84591904882,
    679381.7258865946
   ],
   "end_xy": [
    233332.58369567405,
    679384.0008999113
   ]
  },
  "max_20m": {
   "gradient_pct": 17.270239880534284,
   "start_distance_m": 759.0,
   "end_distance_m": 779.0,
   "midpoint_distance_m": 769.0,
   "start_elevation_m": 40.439829349184926,
   "end_elevation_m": 43.89387732529178,
   "start_xy": [
    233226.88304515174,
    679367.0408678835
   ],
   "end_xy": [
    233245.63602111806,
    679372.9396981874
   ]
  },
  "max_25m": {
   "gradient_pct": 16.695099680633973,
   "start_distance_m": 758.0,
   "end_distance_m": 783.0,
   "midpoint_distance_m": 770.5,
   "start_elevation_m": 40.25867742394388,
   "end_elevation_m": 44.43245234410237,
   "start_xy": [
    233226.08040617182,
    679366.4444028451
   ],
   "end_xy": [
    233249.55562825582,
    679373.7376180114
   ]
  },
  "max_50m": {
   "gradient_pct": 14.907156360585248,
   "start_distance_m": 747.0,
   "end_distance_m": 797.0,
   "midpoint_distance_m": 772.0,
   "start_elevation_m": 38.61807005382883,
   "end_elevation_m": 46.071648234121454,
   "start_xy": [
    233217.25088678827,
    679359.8839482865
   ],
   "end_xy": [
    233263.2739779711,
    679376.5316893818
   ]
  },
  "max_100m": {
   "gradient_pct": 14.052507318707562,
   "start_distance_m": 743.0,
   "end_distance_m": 843.0,
   "midpoint_distance_m": 793.0,
   "start_elevation_m": 38.19600094410738,
   "end_elevation_m": 52.248508262814944,
   "start_xy": [
    233214.29522211547,
    679357.2182497953
   ],
   "end_xy": [
    233309.00022053687,
    679380.132286616
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -24.582874938950283,
   "start_distance_m": 842.0,
   "end_distance_m": 847.0,
   "midpoint_distance_m": 844.5,
   "start_elevation_m": 52.10372504665718,
   "end_elevation_m": 50.87458129970967,
   "start_xy": [
    233308.00069296954,
    679380.1015550371
   ],
   "end_xy": [
    233312.99835122132,
    679380.2545444323
   ]
  },
  "min_10m": {
   "gradient_pct": -11.758667499531441,
   "start_distance_m": 1302.0,
   "end_distance_m": 1312.0,
   "midpoint_distance_m": 1307.0,
   "start_elevation_m": 86.30951524228506,
   "end_elevation_m": 85.13364849233191,
   "start_xy": [
    233484.82273662768,
    679760.8049967597
   ],
   "end_xy": [
    233489.1944032389,
    679769.7841978155
   ]
  },
  "min_20m": {
   "gradient_pct": -10.485372983373509,
   "start_distance_m": 1304.0,
   "end_distance_m": 1324.0,
   "midpoint_distance_m": 1314.0,
   "start_elevation_m": 86.21677279619333,
   "end_elevation_m": 84.11969819951862,
   "start_xy": [
    233485.71966813615,
    679762.5925966824
   ],
   "end_xy": [
    233491.2237710709,
    679781.499626336
   ]
  },
  "min_25m": {
   "gradient_pct": -9.589415674664963,
   "start_distance_m": 1304.0,
   "end_distance_m": 1329.0,
   "midpoint_distance_m": 1316.5,
   "start_elevation_m": 86.21677279619333,
   "end_elevation_m": 83.81941887752708,
   "start_xy": [
    233485.71966813615,
    679762.5925966824
   ],
   "end_xy": [
    233487.48659000543,
    679784.7960083288
   ]
  },
  "min_50m": {
   "gradient_pct": -7.394894772434839,
   "start_distance_m": 1288.0,
   "end_distance_m": 1338.0,
   "midpoint_distance_m": 1313.0,
   "start_elevation_m": 87.06096089650325,
   "end_elevation_m": 83.36351351028583,
   "start_xy": [
    233478.54575215952,
    679748.291027685
   ],
   "end_xy": [
    233480.47714053752,
    679790.438077779
   ]
  },
  "min_100m": {
   "gradient_pct": -2.8319376309609083,
   "start_distance_m": 1288.0,
   "end_distance_m": 1388.0,
   "midpoint_distance_m": 1338.0,
   "start_elevation_m": 87.06096089650325,
   "end_elevation_m": 84.22902326554234,
   "start_xy": [
    233478.54575215952,
    679748.291027685
   ],
   "end_xy": [
    233465.81072720693,
    679832.9480976288
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 51.45922593207217,
   "start_distance_m": 834.0,
   "end_distance_m": 836.0,
   "midpoint_distance_m": 835.0,
   "start_elevation_m": 50.389932727420316,
   "end_elevation_m": 51.41911724606176,
   "start_xy": [
    233300.0044549794,
    679379.8562719213
   ],
   "end_xy": [
    233302.0035158023,
    679379.9175495394
   ]
  },
  "max_3m": {
   "gradient_pct": 35.62047494830125,
   "start_distance_m": 834.0,
   "end_distance_m": 837.0,
   "midpoint_distance_m": 835.5,
   "start_elevation_m": 50.389932727420316,
   "end_elevation_m": 51.45854697586935,
   "start_xy": [
    233300.0044549794,
    679379.8562719213
   ],
   "end_xy": [
    233303.00304336406,
    679379.9482813008
   ]
  }
 },
 "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": 0.006,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.02,
   "windows_resited": [
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 875.0,
     "end_m": 900.0,
     "raw_pct": 20.99,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.433,
   "obstruction_max_height_m": 26.1,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    845.0,
    851.0
   ],
   [
    873.0,
    902.0
   ],
   [
    1734.0,
    1739.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "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": 0.5,
  "elevation_tiles": [
   "data/cache/scotland/phase-3/dtm/NS37NW.tif",
   "data/cache/scotland/phase-3/dtm/NS38SW.tif"
  ],
  "calculated_at": "2026-09-12T00:55:55+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-scotland/batch-england-rchunk02.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-scotland-260911",
  "elevation_provider": "Scottish Remote Sensing Portal (AWS Open Data, srsp-open-data)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Scottish Government, SEPA and partners; Crown copyright",
  "elevation_dataset": "Scottish Public Sector LiDAR Phase 3 50cm",
  "elevation_tile_ids": [
   "NS37NW",
   "NS38SW"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Colgrain",
  "county": "Argyll and Bute"
 }
}