{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (54.3530, -1.1362)",
 "slug": "discovered-lane-54-3530-1-1362",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.502721354033554,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 901.0,
   "end_distance_m": 903.0,
   "start_elevation_m": 242.7135059064713,
   "end_elevation_m": 243.24356033355198,
   "min_gradient_pct": -1.4634101769900099
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.25102062379767,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 901.0,
   "end_distance_m": 904.0,
   "start_elevation_m": 242.7135059064713,
   "end_elevation_m": 243.50103652518524,
   "min_gradient_pct": -1.3143685931993332
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.888958152124815,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 894.0,
   "end_distance_m": 899.0,
   "start_elevation_m": 240.93638387792885,
   "end_elevation_m": 242.2308317855351,
   "min_gradient_pct": -0.6368995606783301
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.64652647256395,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 894.0,
   "end_distance_m": 904.0,
   "start_elevation_m": 240.93638387792885,
   "end_elevation_m": 243.50103652518524,
   "min_gradient_pct": 1.6139591975496614
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.948379960691796,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 892.0,
   "end_distance_m": 912.0,
   "start_elevation_m": 240.46021162674663,
   "end_elevation_m": 245.449887618885,
   "min_gradient_pct": 2.226529998951179
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.229979753239377,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 889.0,
   "end_distance_m": 914.0,
   "start_elevation_m": 239.7995796673759,
   "end_elevation_m": 245.85707460568574,
   "min_gradient_pct": 2.653824171307974
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.67990857907637,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 875.0,
   "end_distance_m": 925.0,
   "start_elevation_m": 237.17545565250035,
   "end_elevation_m": 248.01540994203853,
   "min_gradient_pct": 6.189979642259459
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.636864398071253,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 875.0,
   "end_distance_m": 975.0,
   "start_elevation_m": 237.17545565250035,
   "end_elevation_m": 256.8123200505716,
   "min_gradient_pct": 6.834523584194756
  }
 ],
 "shape": {
  "ascent_concentration": 0.353,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 1031.0,
  "shape_class": "sustained"
 },
 "length_m": 1811.737313119988,
 "start_elevation_m": 140.89927366812128,
 "end_elevation_m": 359.9756359123213,
 "endpoint_gain_m": 219.07636224420003,
 "overall_gradient_pct": 12.0920599613268,
 "accumulated_ascent_m": 219.26013423434492,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.888958152124815,
   "start_distance_m": 894.0,
   "end_distance_m": 899.0,
   "midpoint_distance_m": 896.5,
   "start_elevation_m": 240.93638387792885,
   "end_elevation_m": 242.2308317855351,
   "start_xy": [
    456254.37915263645,
    495487.38504044747
   ],
   "end_xy": [
    456251.2063085428,
    495483.5207086349
   ]
  },
  "max_10m": {
   "gradient_pct": 25.64652647256395,
   "start_distance_m": 894.0,
   "end_distance_m": 904.0,
   "midpoint_distance_m": 899.0,
   "start_elevation_m": 240.93638387792885,
   "end_elevation_m": 243.50103652518524,
   "start_xy": [
    456254.37915263645,
    495487.38504044747
   ],
   "end_xy": [
    456246.90946460183,
    495480.9737767083
   ]
  },
  "max_20m": {
   "gradient_pct": 24.948379960691796,
   "start_distance_m": 892.0,
   "end_distance_m": 912.0,
   "midpoint_distance_m": 902.0,
   "start_elevation_m": 240.46021162674663,
   "end_elevation_m": 245.449887618885,
   "start_xy": [
    456255.47054944315,
    495489.0305270912
   ],
   "end_xy": [
    456239.22727261385,
    495479.0411734908
   ]
  },
  "max_25m": {
   "gradient_pct": 24.229979753239377,
   "start_distance_m": 889.0,
   "end_distance_m": 914.0,
   "midpoint_distance_m": 901.5,
   "start_elevation_m": 239.7995796673759,
   "end_elevation_m": 245.85707460568574,
   "start_xy": [
    456256.45799465204,
    495491.8633617068
   ],
   "end_xy": [
    456237.25788922526,
    495479.3574355099
   ]
  },
  "max_50m": {
   "gradient_pct": 21.67990857907637,
   "start_distance_m": 875.0,
   "end_distance_m": 925.0,
   "midpoint_distance_m": 900.0,
   "start_elevation_m": 237.17545565250035,
   "end_elevation_m": 248.01540994203853,
   "start_xy": [
    456257.7294056998,
    495505.69703497057
   ],
   "end_xy": [
    456227.1970723668,
    495483.3783098381
   ]
  },
  "max_100m": {
   "gradient_pct": 19.636864398071253,
   "start_distance_m": 875.0,
   "end_distance_m": 975.0,
   "midpoint_distance_m": 925.0,
   "start_elevation_m": 237.17545565250035,
   "end_elevation_m": 256.8123200505716,
   "start_xy": [
    456257.7294056998,
    495505.69703497057
   ],
   "end_xy": [
    456184.9585927419,
    495510.1346877029
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.6368995606783301,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 140.89927366812128,
   "end_elevation_m": 140.86742869008737,
   "start_xy": [
    456913.878,
    495877.587
   ],
   "end_xy": [
    456908.8842736236,
    495877.3366259264
   ]
  },
  "min_10m": {
   "gradient_pct": 1.6139591975496614,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 140.89927366812128,
   "end_elevation_m": 141.06066958787625,
   "start_xy": [
    456913.878,
    495877.587
   ],
   "end_xy": [
    456903.8906801143,
    495877.0835965533
   ]
  },
  "min_20m": {
   "gradient_pct": 2.226529998951179,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 140.89927366812128,
   "end_elevation_m": 141.34457966791152,
   "start_xy": [
    456913.878,
    495877.587
   ],
   "end_xy": [
    456893.9034930956,
    495876.57753780717
   ]
  },
  "min_25m": {
   "gradient_pct": 2.653824171307974,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 140.89927366812128,
   "end_elevation_m": 141.56272971094828,
   "start_xy": [
    456913.878,
    495877.587
   ],
   "end_xy": [
    456888.9098995863,
    495876.3245084341
   ]
  },
  "min_50m": {
   "gradient_pct": 6.189979642259459,
   "start_distance_m": 380.0,
   "end_distance_m": 430.0,
   "midpoint_distance_m": 405.0,
   "start_elevation_m": 170.52451452409124,
   "end_elevation_m": 173.61950434522097,
   "start_xy": [
    456543.18042665464,
    495804.1663028571
   ],
   "end_xy": [
    456494.68948548695,
    495792.3434670995
   ]
  },
  "min_100m": {
   "gradient_pct": 6.834523584194756,
   "start_distance_m": 222.0,
   "end_distance_m": 322.0,
   "midpoint_distance_m": 272.0,
   "start_elevation_m": 159.04303367337397,
   "end_elevation_m": 165.87755725756872,
   "start_xy": [
    456695.5548709865,
    495845.5539417145
   ],
   "end_xy": [
    456598.7834509537,
    495820.3489369567
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.502721354033554,
   "start_distance_m": 901.0,
   "end_distance_m": 903.0,
   "midpoint_distance_m": 902.0,
   "start_elevation_m": 242.7135059064713,
   "end_elevation_m": 243.24356033355198,
   "start_xy": [
    456249.4988757171,
    495482.48868597165
   ],
   "end_xy": [
    456247.77260164026,
    495481.4787464628
   ]
  },
  "max_3m": {
   "gradient_pct": 26.25102062379767,
   "start_distance_m": 901.0,
   "end_distance_m": 904.0,
   "midpoint_distance_m": 902.5,
   "start_elevation_m": 242.7135059064713,
   "end_elevation_m": 243.50103652518524,
   "start_xy": [
    456249.4988757171,
    495482.48868597165
   ],
   "end_xy": [
    456246.90946460183,
    495480.9737767083
   ]
  }
 },
 "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": 0.004,
   "obstruction_max_height_m": 5.84,
   "flagged_windows_m": []
  },
  "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/SE5595.tif"
  ],
  "calculated_at": "2026-09-05T02:03:17+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "/mnt/HC_Volume_106794610/hunt-gb/regions/region-09.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": [
   "SE5595.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Fangdale Beck",
  "county": "North Yorkshire"
 }
}