{
 "ocl_version": "0.1.0",
 "name": "Paradise Road",
 "slug": "paradise-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.984631523828,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 247.0,
   "end_distance_m": 249.0,
   "start_elevation_m": 181.25324424056996,
   "end_elevation_m": 181.89293687104652,
   "min_gradient_pct": -11.292421771310046
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.393020983676895,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 247.0,
   "end_distance_m": 250.0,
   "start_elevation_m": 181.25324424056996,
   "end_elevation_m": 182.16503487008026,
   "min_gradient_pct": -8.415563669138729
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.644152378383296,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 245.0,
   "end_distance_m": 250.0,
   "start_elevation_m": 180.7328272511611,
   "end_elevation_m": 182.16503487008026,
   "min_gradient_pct": -6.372657193896316
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.027541825967887,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 243.0,
   "end_distance_m": 253.0,
   "start_elevation_m": 180.38100670122384,
   "end_elevation_m": 182.88376088382063,
   "min_gradient_pct": -5.915389568253033
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.52985027145229,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 234.0,
   "end_distance_m": 254.0,
   "start_elevation_m": 178.5360091501036,
   "end_elevation_m": 183.04197920439407,
   "min_gradient_pct": -3.915928378237936
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.367193058848443,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 233.0,
   "end_distance_m": 258.0,
   "start_elevation_m": 178.43240613597408,
   "end_elevation_m": 183.7742044006862,
   "min_gradient_pct": -3.604920645036941
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.582239403405765,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 234.0,
   "end_distance_m": 284.0,
   "start_elevation_m": 178.5360091501036,
   "end_elevation_m": 187.8271288518065,
   "min_gradient_pct": -1.3016648497757046
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.356835301730882,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 192.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 172.50559050618358,
   "end_elevation_m": 188.86242580791446,
   "min_gradient_pct": -0.5437001847662941
  }
 ],
 "shape": {
  "ascent_concentration": 0.395,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 112.0,
  "shape_class": "sustained"
 },
 "length_m": 1469.9122712350304,
 "start_elevation_m": 152.17952797232107,
 "end_elevation_m": 255.86092719430513,
 "endpoint_gain_m": 103.68139922198407,
 "overall_gradient_pct": 7.053577363149043,
 "accumulated_ascent_m": 109.36626232892453,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.644152378383296,
   "start_distance_m": 245.0,
   "end_distance_m": 250.0,
   "midpoint_distance_m": 247.5,
   "start_elevation_m": 180.7328272511611,
   "end_elevation_m": 182.16503487008026,
   "start_xy": [
    450247.5720562212,
    487151.4990268412
   ],
   "end_xy": [
    450251.76273644704,
    487154.2263330662
   ]
  },
  "max_10m": {
   "gradient_pct": 25.027541825967887,
   "start_distance_m": 243.0,
   "end_distance_m": 253.0,
   "midpoint_distance_m": 248.0,
   "start_elevation_m": 180.38100670122384,
   "end_elevation_m": 182.88376088382063,
   "start_xy": [
    450245.89578413084,
    487150.40810435126
   ],
   "end_xy": [
    450254.27714458253,
    487155.8627168012
   ]
  },
  "max_20m": {
   "gradient_pct": 22.52985027145229,
   "start_distance_m": 234.0,
   "end_distance_m": 254.0,
   "midpoint_distance_m": 244.0,
   "start_elevation_m": 178.5360091501036,
   "end_elevation_m": 183.04197920439407,
   "start_xy": [
    450238.2061008805,
    487145.7427455071
   ],
   "end_xy": [
    450255.11528062774,
    487156.4081780461
   ]
  },
  "max_25m": {
   "gradient_pct": 21.367193058848443,
   "start_distance_m": 233.0,
   "end_distance_m": 258.0,
   "midpoint_distance_m": 245.5,
   "start_elevation_m": 178.43240613597408,
   "end_elevation_m": 183.7742044006862,
   "start_xy": [
    450237.3309291895,
    487145.25893303176
   ],
   "end_xy": [
    450258.46782480844,
    487158.5900230261
   ]
  },
  "max_50m": {
   "gradient_pct": 18.582239403405765,
   "start_distance_m": 234.0,
   "end_distance_m": 284.0,
   "midpoint_distance_m": 259.0,
   "start_elevation_m": 178.5360091501036,
   "end_elevation_m": 187.8271288518065,
   "start_xy": [
    450238.2061008805,
    487145.7427455071
   ],
   "end_xy": [
    450280.0637152459,
    487173.0658844723
   ]
  },
  "max_100m": {
   "gradient_pct": 16.356835301730882,
   "start_distance_m": 192.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 242.0,
   "start_elevation_m": 172.50559050618358,
   "end_elevation_m": 188.86242580791446,
   "start_xy": [
    450200.9659625156,
    487126.3797921247
   ],
   "end_xy": [
    450286.67626726686,
    487177.56856764684
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.372657193896316,
   "start_distance_m": 1435.0,
   "end_distance_m": 1440.0,
   "midpoint_distance_m": 1437.5,
   "start_elevation_m": 254.73703524481905,
   "end_elevation_m": 254.41840238512424,
   "start_xy": [
    450463.34580028884,
    488186.33069167286
   ],
   "end_xy": [
    450461.39565499505,
    488190.9347044153
   ]
  },
  "min_10m": {
   "gradient_pct": -5.915389568253033,
   "start_distance_m": 550.0,
   "end_distance_m": 560.0,
   "midpoint_distance_m": 555.0,
   "start_elevation_m": 208.8607303323274,
   "end_elevation_m": 208.2691913755021,
   "start_xy": [
    450454.016618613,
    487344.0789427549
   ],
   "end_xy": [
    450457.0148463216,
    487353.61885447765
   ]
  },
  "min_20m": {
   "gradient_pct": -3.915928378237936,
   "start_distance_m": 547.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 557.0,
   "start_elevation_m": 208.87504538920606,
   "end_elevation_m": 208.09185971355848,
   "start_xy": [
    450453.11062328407,
    487341.21901749994
   ],
   "end_xy": [
    450459.0926657455,
    487360.3033639168
   ]
  },
  "min_25m": {
   "gradient_pct": -3.604920645036941,
   "start_distance_m": 868.0,
   "end_distance_m": 893.0,
   "midpoint_distance_m": 880.5,
   "start_elevation_m": 224.28825049814742,
   "end_elevation_m": 223.38702033688818,
   "start_xy": [
    450535.0277789793,
    487645.19090597215
   ],
   "end_xy": [
    450532.1120002727,
    487670.0202884561
   ]
  },
  "min_50m": {
   "gradient_pct": -1.3016648497757046,
   "start_distance_m": 1392.0,
   "end_distance_m": 1442.0,
   "midpoint_distance_m": 1417.0,
   "start_elevation_m": 255.0174905168755,
   "end_elevation_m": 254.36665809198766,
   "start_xy": [
    450482.17926657025,
    488147.7144386183
   ],
   "end_xy": [
    450460.6155968775,
    488192.7763095123
   ]
  },
  "min_100m": {
   "gradient_pct": -0.5437001847662941,
   "start_distance_m": 806.0,
   "end_distance_m": 906.0,
   "midpoint_distance_m": 856.0,
   "start_elevation_m": 223.6940165761759,
   "end_elevation_m": 223.1503163914096,
   "start_xy": [
    450531.331472982,
    487583.3431966392
   ],
   "end_xy": [
    450530.39663781226,
    487682.90123660763
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.984631523828,
   "start_distance_m": 247.0,
   "end_distance_m": 249.0,
   "midpoint_distance_m": 248.0,
   "start_elevation_m": 181.25324424056996,
   "end_elevation_m": 181.89293687104652,
   "start_xy": [
    450249.24832831154,
    487152.5899493312
   ],
   "end_xy": [
    450250.9246004019,
    487153.6808718212
   ]
  },
  "max_3m": {
   "gradient_pct": 30.393020983676895,
   "start_distance_m": 247.0,
   "end_distance_m": 250.0,
   "midpoint_distance_m": 248.5,
   "start_elevation_m": 181.25324424056996,
   "end_elevation_m": 182.16503487008026,
   "start_xy": [
    450249.24832831154,
    487152.5899493312
   ],
   "end_xy": [
    450251.76273644704,
    487154.2263330662
   ]
  }
 },
 "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": {
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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/SE5085.tif"
  ],
  "calculated_at": "2026-09-01T15:27:04+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/england-2026-08-12-roads.osm.pbf",
  "osm_snapshot": "2026-08-12T20:21:46Z",
  "run_id": "chunk-08-260901",
  "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": [
   "SE5085.tif"
  ],
  "canopy_check": "unavailable \u2014 surface model missing: [Errno 28] No space left on device",
  "trimmed_from": "paradise-road",
  "trim_cut_m": [
   [
    0.0,
    72.9
   ],
   [
    1542.8,
    2223.9
   ]
  ],
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Boltby",
  "county": "North Yorkshire"
 }
}