{
 "ocl_version": "0.1.0",
 "name": "Comber Road",
 "slug": "comber-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.628425050886875,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 469.0,
   "end_distance_m": 471.0,
   "start_elevation_m": 109.2560273649542,
   "end_elevation_m": 109.84859586597194,
   "min_gradient_pct": -16.807101264889468,
   "suppressed_max_gradient_pct": 33.07673174334127,
   "suppressed_location_m": [
    492.0,
    494.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.983844905310644,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 219.0,
   "end_distance_m": 222.0,
   "start_elevation_m": 85.31699196794796,
   "end_elevation_m": 86.12650731510728,
   "min_gradient_pct": -14.596664097023885,
   "suppressed_max_gradient_pct": 31.581097477589992,
   "suppressed_location_m": [
    491.0,
    494.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.00727300076568,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 217.0,
   "end_distance_m": 222.0,
   "start_elevation_m": 84.92614366506899,
   "end_elevation_m": 86.12650731510728,
   "min_gradient_pct": -13.85570174574525,
   "suppressed_max_gradient_pct": 29.61476284881627,
   "suppressed_location_m": [
    489.0,
    494.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 19.98545286814064,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 194.0,
   "end_distance_m": 204.0,
   "start_elevation_m": 81.94061959087912,
   "end_elevation_m": 83.93916487769319,
   "min_gradient_pct": -9.40089304047163,
   "suppressed_max_gradient_pct": 26.58146328167689,
   "suppressed_location_m": [
    485.0,
    495.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.035846143402665,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 185.0,
   "end_distance_m": 205.0,
   "start_elevation_m": 80.4773787528683,
   "end_elevation_m": 84.08454798154884,
   "min_gradient_pct": -7.207476777063704,
   "suppressed_max_gradient_pct": 24.316171739069645,
   "suppressed_location_m": [
    485.0,
    505.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.161826413512813,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 180.0,
   "end_distance_m": 205.0,
   "start_elevation_m": 79.79409137817063,
   "end_elevation_m": 84.08454798154884,
   "min_gradient_pct": -7.335554001082414,
   "suppressed_max_gradient_pct": 23.727618859649056,
   "suppressed_location_m": [
    485.0,
    510.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.578420860771303,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 155.0,
   "end_distance_m": 205.0,
   "start_elevation_m": 76.29533755116319,
   "end_elevation_m": 84.08454798154884,
   "min_gradient_pct": -5.172884558046974,
   "suppressed_max_gradient_pct": 17.67429940882468,
   "suppressed_location_m": [
    464.0,
    514.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.042971040910231,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 127.0,
   "end_distance_m": 227.0,
   "start_elevation_m": 72.83220955763161,
   "end_elevation_m": 86.87518059854185,
   "min_gradient_pct": -2.4085438975354805,
   "suppressed_max_gradient_pct": 14.945190104090258,
   "suppressed_location_m": [
    414.0,
    514.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.359,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 90.0,
  "shape_class": "sustained"
 },
 "length_m": 770.509804552992,
 "start_elevation_m": 63.87251226600598,
 "end_elevation_m": 125.02492049963259,
 "endpoint_gain_m": 61.15240823362661,
 "overall_gradient_pct": 7.93661649368679,
 "accumulated_ascent_m": 64.84474157864958,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.00727300076568,
   "start_distance_m": 217.0,
   "end_distance_m": 222.0,
   "midpoint_distance_m": 219.5,
   "start_elevation_m": 84.92614366506899,
   "end_elevation_m": 86.12650731510728,
   "start_xy": [
    384020.11154155043,
    283202.60086224583
   ],
   "end_xy": [
    384016.48617018934,
    283199.1575093248
   ]
  },
  "max_10m": {
   "gradient_pct": 19.98545286814064,
   "start_distance_m": 194.0,
   "end_distance_m": 204.0,
   "midpoint_distance_m": 199.0,
   "start_elevation_m": 81.94061959087912,
   "end_elevation_m": 83.93916487769319,
   "start_xy": [
    384032.6494317907,
    283221.6304941381
   ],
   "end_xy": [
    384027.8401140207,
    283212.8629147529
   ]
  },
  "max_20m": {
   "gradient_pct": 18.035846143402665,
   "start_distance_m": 185.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 195.0,
   "start_elevation_m": 80.4773787528683,
   "end_elevation_m": 84.08454798154884,
   "start_xy": [
    384036.97744599043,
    283229.5215200283
   ],
   "end_xy": [
    384027.3592318224,
    283211.986129539
   ]
  },
  "max_25m": {
   "gradient_pct": 17.161826413512813,
   "start_distance_m": 180.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 192.5,
   "start_elevation_m": 79.79409137817063,
   "end_elevation_m": 84.08454798154884,
   "start_xy": [
    384039.38227855664,
    283233.9052147488
   ],
   "end_xy": [
    384027.3592318224,
    283211.986129539
   ]
  },
  "max_50m": {
   "gradient_pct": 15.578420860771303,
   "start_distance_m": 155.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 180.0,
   "start_elevation_m": 76.29533755116319,
   "end_elevation_m": 84.08454798154884,
   "start_xy": [
    384051.404561659,
    283255.8247178644
   ],
   "end_xy": [
    384027.3592318224,
    283211.986129539
   ]
  },
  "max_100m": {
   "gradient_pct": 14.042971040910231,
   "start_distance_m": 127.0,
   "end_distance_m": 227.0,
   "midpoint_distance_m": 177.0,
   "start_elevation_m": 72.83220955763161,
   "end_elevation_m": 86.87518059854185,
   "start_xy": [
    384064.93955096387,
    283280.3350638103
   ],
   "end_xy": [
    384012.8603248052,
    283195.7146562631
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.85570174574525,
   "start_distance_m": 638.0,
   "end_distance_m": 643.0,
   "midpoint_distance_m": 640.5,
   "start_elevation_m": 117.08615241597288,
   "end_elevation_m": 116.39336732868561,
   "start_xy": [
    383856.344524695,
    282827.4430467793
   ],
   "end_xy": [
    383855.6163509288,
    282822.49854180904
   ]
  },
  "min_10m": {
   "gradient_pct": -9.40089304047163,
   "start_distance_m": 634.0,
   "end_distance_m": 644.0,
   "midpoint_distance_m": 639.0,
   "start_elevation_m": 117.21460077712804,
   "end_elevation_m": 116.27451147308088,
   "start_xy": [
    383856.9395977126,
    282831.3985347148
   ],
   "end_xy": [
    383856.04529767885,
    282821.95981059084
   ]
  },
  "min_20m": {
   "gradient_pct": -7.207476777063704,
   "start_distance_m": 624.0,
   "end_distance_m": 644.0,
   "midpoint_distance_m": 634.0,
   "start_elevation_m": 117.71600682849362,
   "end_elevation_m": 116.27451147308088,
   "start_xy": [
    383858.42750052543,
    282841.28722160845
   ],
   "end_xy": [
    383856.04529767885,
    282821.95981059084
   ]
  },
  "min_25m": {
   "gradient_pct": -7.335554001082414,
   "start_distance_m": 619.0,
   "end_distance_m": 644.0,
   "midpoint_distance_m": 631.5,
   "start_elevation_m": 118.10839997335148,
   "end_elevation_m": 116.27451147308088,
   "start_xy": [
    383859.1715426695,
    282846.2315513923
   ],
   "end_xy": [
    383856.04529767885,
    282821.95981059084
   ]
  },
  "min_50m": {
   "gradient_pct": -5.172884558046974,
   "start_distance_m": 594.0,
   "end_distance_m": 644.0,
   "midpoint_distance_m": 619.0,
   "start_elevation_m": 118.86095375210436,
   "end_elevation_m": 116.27451147308088,
   "start_xy": [
    383862.8915030029,
    282870.9532380532
   ],
   "end_xy": [
    383856.04529767885,
    282821.95981059084
   ]
  },
  "min_100m": {
   "gradient_pct": -2.4085438975354805,
   "start_distance_m": 549.0,
   "end_distance_m": 649.0,
   "midpoint_distance_m": 599.0,
   "start_elevation_m": 118.91938421089145,
   "end_elevation_m": 116.51084031335597,
   "start_xy": [
    383869.587506763,
    282915.4522630109
   ],
   "end_xy": [
    383860.81435753545,
    282823.46182941366
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.628425050886875,
   "start_distance_m": 469.0,
   "end_distance_m": 471.0,
   "midpoint_distance_m": 470.0,
   "start_elevation_m": 109.2560273649542,
   "end_elevation_m": 109.84859586597194,
   "start_xy": [
    383898.91235662537,
    282988.9486661887
   ],
   "end_xy": [
    383898.41036290023,
    282987.01269038825
   ]
  },
  "max_3m": {
   "gradient_pct": 26.983844905310644,
   "start_distance_m": 219.0,
   "end_distance_m": 222.0,
   "midpoint_distance_m": 220.5,
   "start_elevation_m": 85.31699196794796,
   "end_elevation_m": 86.12650731510728,
   "start_xy": [
    384018.6617880584,
    283201.22310508165
   ],
   "end_xy": [
    384016.48617018934,
    283199.1575093248
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.039,
   "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": 485.0,
     "end_m": 510.0,
     "raw_pct": 23.73,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 485.0,
     "end_m": 505.0,
     "raw_pct": 24.32,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 485.0,
     "end_m": 495.0,
     "raw_pct": 26.58,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.145,
   "obstruction_max_height_m": 17.09,
   "flagged_windows_m": [
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    483.0,
    512.0
   ]
  ],
  "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": 1.0,
  "elevation_tiles": [
   "data/cache/england/bulk_dtm_1m/SO8080.tif"
  ],
  "calculated_at": "2026-09-11T23:31:14+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk04.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-england-260911",
  "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": [
   "SO8080.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Kinver",
  "county": "Staffordshire"
 }
}