{
 "ocl_version": "0.1.0",
 "name": "Woodland Park Road",
 "slug": "woodland-park-road",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 30.920093116780123,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 788.0,
   "end_distance_m": 790.0,
   "start_elevation_m": 77.59175917702231,
   "end_elevation_m": 78.21016103935791,
   "min_gradient_pct": -4.10666957102066
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.31689428073696,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 789.0,
   "end_distance_m": 792.0,
   "start_elevation_m": 77.87223672417626,
   "end_elevation_m": 78.75174355259837,
   "min_gradient_pct": -2.690357476140548
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.315173417936137,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 796.0,
   "end_distance_m": 801.0,
   "start_elevation_m": 79.76680199679318,
   "end_elevation_m": 81.18256066768998,
   "min_gradient_pct": -1.7709604243198385
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.64015027692011,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 791.0,
   "end_distance_m": 801.0,
   "start_elevation_m": 78.41854563999797,
   "end_elevation_m": 81.18256066768998,
   "min_gradient_pct": -1.2033620071803952
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.20605859787098,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 786.0,
   "end_distance_m": 806.0,
   "start_elevation_m": 77.1203536117262,
   "end_elevation_m": 82.3615653313004,
   "min_gradient_pct": -0.8825384482555698
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.92902265434878,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 784.0,
   "end_distance_m": 809.0,
   "start_elevation_m": 76.81358231698218,
   "end_elevation_m": 82.79583798056937,
   "min_gradient_pct": -0.4629456187530536
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.773046235492018,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 760.0,
   "end_distance_m": 810.0,
   "start_elevation_m": 75.96953673380298,
   "end_elevation_m": 82.85605985154899,
   "min_gradient_pct": 0.2848695795480012
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 11.82028602415465,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 120.0,
   "end_distance_m": 220.0,
   "start_elevation_m": 29.616594403483585,
   "end_elevation_m": 41.436880427638236,
   "min_gradient_pct": 1.3340910675355246
  }
 ],
 "shape": {
  "ascent_concentration": 0.359,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 81.0,
  "shape_class": "sustained"
 },
 "length_m": 810.4589630157124,
 "start_elevation_m": 23.31664293498933,
 "end_elevation_m": 82.87865485300087,
 "endpoint_gain_m": 59.562011918011535,
 "overall_gradient_pct": 7.349170610240609,
 "accumulated_ascent_m": 60.64388617628207,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.315173417936137,
   "start_distance_m": 796.0,
   "end_distance_m": 801.0,
   "midpoint_distance_m": 798.5,
   "start_elevation_m": 79.76680199679318,
   "end_elevation_m": 81.18256066768998,
   "start_xy": [
    333064.7863356834,
    188574.00647702347
   ],
   "end_xy": [
    333060.5327762399,
    188576.63463836946
   ]
  },
  "max_10m": {
   "gradient_pct": 27.64015027692011,
   "start_distance_m": 791.0,
   "end_distance_m": 801.0,
   "midpoint_distance_m": 796.0,
   "start_elevation_m": 78.41854563999797,
   "end_elevation_m": 81.18256066768998,
   "start_xy": [
    333067.5698843539,
    188570.05972524296
   ],
   "end_xy": [
    333060.5327762399,
    188576.63463836946
   ]
  },
  "max_20m": {
   "gradient_pct": 26.20605859787098,
   "start_distance_m": 786.0,
   "end_distance_m": 806.0,
   "midpoint_distance_m": 796.0,
   "start_elevation_m": 77.1203536117262,
   "end_elevation_m": 82.3615653313004,
   "start_xy": [
    333069.7220167847,
    188565.5465970595
   ],
   "end_xy": [
    333056.34740381764,
    188579.3502898756
   ]
  },
  "max_25m": {
   "gradient_pct": 23.92902265434878,
   "start_distance_m": 784.0,
   "end_distance_m": 809.0,
   "midpoint_distance_m": 796.5,
   "start_elevation_m": 76.81358231698218,
   "end_elevation_m": 82.79583798056937,
   "start_xy": [
    333070.582869757,
    188563.7413457861
   ],
   "end_xy": [
    333054.19494230347,
    188581.44000503083
   ]
  },
  "max_50m": {
   "gradient_pct": 13.773046235492018,
   "start_distance_m": 760.0,
   "end_distance_m": 810.0,
   "midpoint_distance_m": 785.0,
   "start_elevation_m": 75.96953673380298,
   "end_elevation_m": 82.85605985154899,
   "start_xy": [
    333086.3148956184,
    188564.82188792652
   ],
   "end_xy": [
    333053.4774551321,
    188582.13657674924
   ]
  },
  "max_100m": {
   "gradient_pct": 11.82028602415465,
   "start_distance_m": 120.0,
   "end_distance_m": 220.0,
   "midpoint_distance_m": 170.0,
   "start_elevation_m": 29.616594403483585,
   "end_elevation_m": 41.436880427638236,
   "start_xy": [
    332720.0365037588,
    188650.0616240475
   ],
   "end_xy": [
    332816.1272929305,
    188677.7484482851
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.7709604243198385,
   "start_distance_m": 33.0,
   "end_distance_m": 38.0,
   "midpoint_distance_m": 35.5,
   "start_elevation_m": 25.54952703754322,
   "end_elevation_m": 25.46097901632723,
   "start_xy": [
    332633.7813573297,
    188638.73409735775
   ],
   "end_xy": [
    332638.7392118112,
    188639.38192367667
   ]
  },
  "min_10m": {
   "gradient_pct": -1.2033620071803952,
   "start_distance_m": 33.0,
   "end_distance_m": 43.0,
   "midpoint_distance_m": 38.0,
   "start_elevation_m": 25.54952703754322,
   "end_elevation_m": 25.42919083682518,
   "start_xy": [
    332633.7813573297,
    188638.73409735775
   ],
   "end_xy": [
    332643.6970662928,
    188640.0297499956
   ]
  },
  "min_20m": {
   "gradient_pct": -0.8825384482555698,
   "start_distance_m": 30.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 40.0,
   "start_elevation_m": 25.552983381743925,
   "end_elevation_m": 25.37647569209281,
   "start_xy": [
    332633.38373354485,
    188638.68214118318
   ],
   "end_xy": [
    332650.63806256704,
    188640.9367068421
   ]
  },
  "min_25m": {
   "gradient_pct": -0.4629456187530536,
   "start_distance_m": 533.0,
   "end_distance_m": 558.0,
   "midpoint_distance_m": 545.5,
   "start_elevation_m": 68.79656606987217,
   "end_elevation_m": 68.68082966518391,
   "start_xy": [
    333096.26075232564,
    188778.96918661197
   ],
   "end_xy": [
    333098.4038495645,
    188754.06121330571
   ]
  },
  "min_50m": {
   "gradient_pct": 0.2848695795480012,
   "start_distance_m": 695.0,
   "end_distance_m": 745.0,
   "midpoint_distance_m": 720.0,
   "start_elevation_m": 75.53965599325035,
   "end_elevation_m": 75.68209078302435,
   "start_xy": [
    333114.9766692932,
    188618.13191184844
   ],
   "end_xy": [
    333096.5845718558,
    188575.45467952063
   ]
  },
  "min_100m": {
   "gradient_pct": 1.3340910675355246,
   "start_distance_m": 683.0,
   "end_distance_m": 783.0,
   "midpoint_distance_m": 733.0,
   "start_elevation_m": 75.41553281537796,
   "end_elevation_m": 76.74962388291348,
   "start_xy": [
    333113.6455627514,
    188630.05785648082
   ],
   "end_xy": [
    333071.0132962432,
    188562.83872014942
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 30.920093116780123,
   "start_distance_m": 788.0,
   "end_distance_m": 790.0,
   "midpoint_distance_m": 789.0,
   "start_elevation_m": 77.59175917702231,
   "end_elevation_m": 78.21016103935791,
   "start_xy": [
    333068.8611638124,
    188567.35184833288
   ],
   "end_xy": [
    333068.0003108401,
    188569.15709960627
   ]
  },
  "max_3m": {
   "gradient_pct": 29.31689428073696,
   "start_distance_m": 789.0,
   "end_distance_m": 792.0,
   "midpoint_distance_m": 790.5,
   "start_elevation_m": 77.87223672417626,
   "end_elevation_m": 78.75174355259837,
   "start_xy": [
    333068.4307373263,
    188568.25447396957
   ],
   "end_xy": [
    333067.1394578678,
    188570.96235087965
   ]
  }
 },
 "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": 0.052,
   "obstruction_max_height_m": 12.48,
   "flagged_windows_m": []
  },
  "review": [
   "human_review: Line-offset campaign 2026-08-20 (Wales leg): ranked window still measures well off any OS Open Roads link after re-siting \u2014 OSM and OR disagree where (or whether) the road runs there. Quarantined pending adjudication."
  ],
  "extent": [
   "may_start_earlier",
   "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/wales/dtm_1m/wg_del_3_332188_20201201dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_3_333188_20201201dtm.tif"
  ],
  "calculated_at": "2026-08-20T23:10:47+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/wales-2026-08-11.osm.pbf",
  "osm_snapshot": "2026-08-10T20:21:40Z",
  "elevation_provider": "Welsh Government",
  "elevation_dataset": "Welsh Government LiDAR 1m DTM (2020-2023)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Crown copyright Welsh Government",
  "elevation_catalogue_layer": "geonode:welsh_government_lidar_tile_catalogue_2020_2023",
  "elevation_tile_ids": [
   "wg_del_3_332188_20201201dtm.tif",
   "wg_del_3_333188_20201201dtm.tif"
  ],
  "elevation_capture_dates": [
   "01-12-2020"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 8.2% over 200 m (Terrain 50), gain 28.0 m over 311 m way. EXTENDED by graph walk: +3 segment(s) at base, +3 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. ROAD-REVIEW: way 926267316: unnamed service way; way 926267316: service way, surface untagged; way 964751324: unnamed service way; way 964751324: service way, surface untagged ADOPTED (notable slice 2026-08-11): clean-steep.",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 }
}