{
 "ocl_version": "0.1.0",
 "name": "Limekiln Lane",
 "slug": "limekiln-lane",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.0831396965807,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 590.0,
   "end_distance_m": 592.0,
   "start_elevation_m": 165.5150169528985,
   "end_elevation_m": 166.2366797468301,
   "min_gradient_pct": -6.934609384214241
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.73685327149379,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 591.0,
   "end_distance_m": 594.0,
   "start_elevation_m": 165.89241837442685,
   "end_elevation_m": 166.90452397257167,
   "min_gradient_pct": -5.107237382531101
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.822552922409386,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 590.0,
   "end_distance_m": 595.0,
   "start_elevation_m": 165.5150169528985,
   "end_elevation_m": 167.10614459901896,
   "min_gradient_pct": -4.886066186672906
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.05232577625992,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 589.0,
   "end_distance_m": 599.0,
   "start_elevation_m": 165.3624755551602,
   "end_elevation_m": 168.06770813278618,
   "min_gradient_pct": -4.518322383554789
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.8563072810056,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 583.0,
   "end_distance_m": 603.0,
   "start_elevation_m": 164.00110246823678,
   "end_elevation_m": 168.9723639244379,
   "min_gradient_pct": -3.792081911029328
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.96683883748733,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 578.0,
   "end_distance_m": 603.0,
   "start_elevation_m": 162.98065421506607,
   "end_elevation_m": 168.9723639244379,
   "min_gradient_pct": -3.647728530492145
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.87855096758767,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 554.0,
   "end_distance_m": 604.0,
   "start_elevation_m": 158.6607190170097,
   "end_elevation_m": 169.09999450080355,
   "min_gradient_pct": -2.6312063525514304
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.737970049098834,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 503.0,
   "end_distance_m": 603.0,
   "start_elevation_m": 151.23439387533907,
   "end_elevation_m": 168.9723639244379,
   "min_gradient_pct": -0.944317957792947
  }
 ],
 "shape": {
  "ascent_concentration": 0.385,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 95.0,
  "shape_class": "sustained"
 },
 "length_m": 879.3323826492448,
 "start_elevation_m": 103.44598703674343,
 "end_elevation_m": 183.3437744362798,
 "endpoint_gain_m": 79.89778739953637,
 "overall_gradient_pct": 9.086187313927987,
 "accumulated_ascent_m": 82.09621780991473,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.822552922409386,
   "start_distance_m": 590.0,
   "end_distance_m": 595.0,
   "midpoint_distance_m": 592.5,
   "start_elevation_m": 165.5150169528985,
   "end_elevation_m": 167.10614459901896,
   "start_xy": [
    337913.4459115762,
    107885.56104341135
   ],
   "end_xy": [
    337916.99616592063,
    107889.0817953324
   ]
  },
  "max_10m": {
   "gradient_pct": 27.05232577625992,
   "start_distance_m": 589.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 594.0,
   "start_elevation_m": 165.3624755551602,
   "end_elevation_m": 168.06770813278618,
   "start_xy": [
    337912.7358607073,
    107884.85689302713
   ],
   "end_xy": [
    337919.82286867284,
    107891.91127149179
   ]
  },
  "max_20m": {
   "gradient_pct": 24.8563072810056,
   "start_distance_m": 583.0,
   "end_distance_m": 603.0,
   "midpoint_distance_m": 593.0,
   "start_elevation_m": 164.00110246823678,
   "end_elevation_m": 168.9723639244379,
   "start_xy": [
    337908.47555549396,
    107880.63199072184
   ],
   "end_xy": [
    337922.50153152,
    107894.88192215306
   ]
  },
  "max_25m": {
   "gradient_pct": 23.96683883748733,
   "start_distance_m": 578.0,
   "end_distance_m": 603.0,
   "midpoint_distance_m": 590.5,
   "start_elevation_m": 162.98065421506607,
   "end_elevation_m": 168.9723639244379,
   "start_xy": [
    337904.9253011495,
    107877.11123880078
   ],
   "end_xy": [
    337922.50153152,
    107894.88192215306
   ]
  },
  "max_50m": {
   "gradient_pct": 20.87855096758767,
   "start_distance_m": 554.0,
   "end_distance_m": 604.0,
   "midpoint_distance_m": 579.0,
   "start_elevation_m": 158.6607190170097,
   "end_elevation_m": 169.09999450080355,
   "start_xy": [
    337887.58963459916,
    107860.5307642924
   ],
   "end_xy": [
    337923.1711972318,
    107895.62458481838
   ]
  },
  "max_100m": {
   "gradient_pct": 17.737970049098834,
   "start_distance_m": 503.0,
   "end_distance_m": 603.0,
   "midpoint_distance_m": 553.0,
   "start_elevation_m": 151.23439387533907,
   "end_elevation_m": 168.9723639244379,
   "start_xy": [
    337848.12082702457,
    107828.25613057647
   ],
   "end_xy": [
    337922.50153152,
    107894.88192215306
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.886066186672906,
   "start_distance_m": 816.0,
   "end_distance_m": 821.0,
   "midpoint_distance_m": 818.5,
   "start_elevation_m": 184.64401694264575,
   "end_elevation_m": 184.3997136333121,
   "start_xy": [
    337826.6646812799,
    108066.17352788593
   ],
   "end_xy": [
    337825.7091143652,
    108071.08136772354
   ]
  },
  "min_10m": {
   "gradient_pct": -4.518322383554789,
   "start_distance_m": 812.0,
   "end_distance_m": 822.0,
   "midpoint_distance_m": 817.0,
   "start_elevation_m": 184.80979893834018,
   "end_elevation_m": 184.3579666999847,
   "start_xy": [
    337828.41100306436,
    108062.58727762758
   ],
   "end_xy": [
    337825.5180009823,
    108072.06293569106
   ]
  },
  "min_20m": {
   "gradient_pct": -3.792081911029328,
   "start_distance_m": 813.0,
   "end_distance_m": 833.0,
   "midpoint_distance_m": 823.0,
   "start_elevation_m": 184.78538106115246,
   "end_elevation_m": 184.0269646789466,
   "start_xy": [
    337827.95414982515,
    108063.47681971078
   ],
   "end_xy": [
    337823.4157537701,
    108082.8601833338
   ]
  },
  "min_25m": {
   "gradient_pct": -3.647728530492145,
   "start_distance_m": 813.0,
   "end_distance_m": 838.0,
   "midpoint_distance_m": 825.5,
   "start_elevation_m": 184.78538106115246,
   "end_elevation_m": 183.87344892852943,
   "start_xy": [
    337827.95414982515,
    108063.47681971078
   ],
   "end_xy": [
    337822.46018685546,
    108087.76802317142
   ]
  },
  "min_50m": {
   "gradient_pct": -2.6312063525514304,
   "start_distance_m": 815.0,
   "end_distance_m": 865.0,
   "midpoint_distance_m": 840.0,
   "start_elevation_m": 184.6953786178223,
   "end_elevation_m": 183.3797754415466,
   "start_xy": [
    337827.04044334666,
    108065.25590387719
   ],
   "end_xy": [
    337820.2592499583,
    108114.59520971177
   ]
  },
  "min_100m": {
   "gradient_pct": -0.944317957792947,
   "start_distance_m": 779.0,
   "end_distance_m": 879.0,
   "midpoint_distance_m": 829.0,
   "start_elevation_m": 184.2934554846924,
   "end_elevation_m": 183.34913752689945,
   "start_xy": [
    337843.3483486487,
    108033.16406137017
   ],
   "end_xy": [
    337822.72256113106,
    108128.37679498152
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.0831396965807,
   "start_distance_m": 590.0,
   "end_distance_m": 592.0,
   "midpoint_distance_m": 591.0,
   "start_elevation_m": 165.5150169528985,
   "end_elevation_m": 166.2366797468301,
   "start_xy": [
    337913.4459115762,
    107885.56104341135
   ],
   "end_xy": [
    337914.866013314,
    107886.96934417977
   ]
  },
  "max_3m": {
   "gradient_pct": 33.73685327149379,
   "start_distance_m": 591.0,
   "end_distance_m": 594.0,
   "midpoint_distance_m": 592.5,
   "start_elevation_m": 165.89241837442685,
   "end_elevation_m": 166.90452397257167,
   "start_xy": [
    337914.1559624451,
    107886.26519379555
   ],
   "end_xy": [
    337916.2861150518,
    107888.3776449482
   ]
  }
 },
 "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": 0.068,
   "obstruction_max_height_m": 15.48,
   "flagged_windows_m": []
  },
  "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/ST3505.tif"
  ],
  "calculated_at": "2026-09-05T02:29:00+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "/mnt/HC_Volume_106792346/hunt-gb/regions/region-08.osm.pbf",
  "osm_snapshot": "",
  "run_id": "hunt-england-260905",
  "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": [
   "ST3505.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Winsham",
  "county": "Somerset"
 }
}