{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.2414, 15.8144)",
 "slug": "discovered-lane-47-2414-15-8144",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.98480861756707,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 165.0,
   "end_distance_m": 167.0,
   "start_elevation_m": 476.9112895430143,
   "end_elevation_m": 477.4509857153656,
   "min_gradient_pct": -0.1375059197300743
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.84346117705445,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 164.0,
   "end_distance_m": 167.0,
   "start_elevation_m": 476.645681880054,
   "end_elevation_m": 477.4509857153656,
   "min_gradient_pct": 0.027213795092014454
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.147637019936383,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 162.0,
   "end_distance_m": 167.0,
   "start_elevation_m": 476.1436038643688,
   "end_elevation_m": 477.4509857153656,
   "min_gradient_pct": 0.12000517242427122
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.93396906924545,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 158.0,
   "end_distance_m": 168.0,
   "start_elevation_m": 475.1914949755334,
   "end_elevation_m": 477.6848918824579,
   "min_gradient_pct": 0.3346847261724406
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.411893585944483,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 150.0,
   "end_distance_m": 170.0,
   "start_elevation_m": 473.45006887135514,
   "end_elevation_m": 478.13244758854404,
   "min_gradient_pct": 0.8764725893891523
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.90898759144261,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 145.0,
   "end_distance_m": 170.0,
   "start_elevation_m": 472.4052006906834,
   "end_elevation_m": 478.13244758854404,
   "min_gradient_pct": 1.0418295133961237
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.375917820583823,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 120.0,
   "end_distance_m": 170.0,
   "start_elevation_m": 467.9444886782521,
   "end_elevation_m": 478.13244758854404,
   "min_gradient_pct": 2.3550051000296435
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.128047115417758,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 95.0,
   "end_distance_m": 195.0,
   "start_elevation_m": 463.3107890530579,
   "end_elevation_m": 481.43883616847563,
   "min_gradient_pct": 7.28179309154973
  }
 ],
 "shape": {
  "ascent_concentration": 0.343,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 278.0,
  "shape_class": "sustained"
 },
 "length_m": 545.6055463610211,
 "start_elevation_m": 456.26132651176243,
 "end_elevation_m": 524.3260520837382,
 "endpoint_gain_m": 68.06472557197577,
 "overall_gradient_pct": 12.475079482960039,
 "accumulated_ascent_m": 68.07564105655308,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.147637019936383,
   "start_distance_m": 162.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 164.5,
   "start_elevation_m": 476.1436038643688,
   "end_elevation_m": 477.4509857153656,
   "start_xy": [
    4761047.434246085,
    2698152.007650213
   ],
   "end_xy": [
    4761050.857899827,
    2698155.651630079
   ]
  },
  "max_10m": {
   "gradient_pct": 24.93396906924545,
   "start_distance_m": 158.0,
   "end_distance_m": 168.0,
   "midpoint_distance_m": 163.0,
   "start_elevation_m": 475.1914949755334,
   "end_elevation_m": 477.6848918824579,
   "start_xy": [
    4761044.696046568,
    2698149.0917864745
   ],
   "end_xy": [
    4761051.542314472,
    2698156.3807229926
   ]
  },
  "max_20m": {
   "gradient_pct": 23.411893585944483,
   "start_distance_m": 150.0,
   "end_distance_m": 170.0,
   "midpoint_distance_m": 160.0,
   "start_elevation_m": 473.45006887135514,
   "end_elevation_m": 478.13244758854404,
   "start_xy": [
    4761039.651251743,
    2698142.886861921
   ],
   "end_xy": [
    4761052.9113272205,
    2698157.8387365597
   ]
  },
  "max_25m": {
   "gradient_pct": 22.90898759144261,
   "start_distance_m": 145.0,
   "end_distance_m": 170.0,
   "midpoint_distance_m": 157.5,
   "start_elevation_m": 472.4052006906834,
   "end_elevation_m": 478.13244758854404,
   "start_xy": [
    4761036.545866495,
    2698138.9681148664
   ],
   "end_xy": [
    4761052.9113272205,
    2698157.8387365597
   ]
  },
  "max_50m": {
   "gradient_pct": 20.375917820583823,
   "start_distance_m": 120.0,
   "end_distance_m": 170.0,
   "midpoint_distance_m": 145.0,
   "start_elevation_m": 467.9444886782521,
   "end_elevation_m": 478.13244758854404,
   "start_xy": [
    4761032.506771733,
    2698116.4702575323
   ],
   "end_xy": [
    4761052.9113272205,
    2698157.8387365597
   ]
  },
  "max_100m": {
   "gradient_pct": 18.128047115417758,
   "start_distance_m": 95.0,
   "end_distance_m": 195.0,
   "midpoint_distance_m": 145.0,
   "start_elevation_m": 463.3107890530579,
   "end_elevation_m": 481.43883616847563,
   "start_xy": [
    4761034.683991944,
    2698091.791336685
   ],
   "end_xy": [
    4761076.798613597,
    2698161.0207566367
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.12000517242427122,
   "start_distance_m": 1.0,
   "end_distance_m": 6.0,
   "midpoint_distance_m": 3.5,
   "start_elevation_m": 456.26276651900173,
   "end_elevation_m": 456.26876677762294,
   "start_xy": [
    4760955.402461658,
    2698103.1035911995
   ],
   "end_xy": [
    4760958.51359149,
    2698099.2530251704
   ]
  },
  "min_10m": {
   "gradient_pct": 0.3346847261724406,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 456.26132651176243,
   "end_elevation_m": 456.2947949843797,
   "start_xy": [
    4760954.892463834,
    2698103.963766868
   ],
   "end_xy": [
    4760961.484820788,
    2698096.5750052393
   ]
  },
  "min_20m": {
   "gradient_pct": 0.8764725893891523,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 456.26132651176243,
   "end_elevation_m": 456.43662102964026,
   "start_xy": [
    4760954.892463834,
    2698103.963766868
   ],
   "end_xy": [
    4760968.914684809,
    2698089.88194102
   ]
  },
  "min_25m": {
   "gradient_pct": 1.0418295133961237,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 456.26132651176243,
   "end_elevation_m": 456.52178389011146,
   "start_xy": [
    4760954.892463834,
    2698103.963766868
   ],
   "end_xy": [
    4760972.629507368,
    2698086.5352874435
   ]
  },
  "min_50m": {
   "gradient_pct": 2.3550051000296435,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 456.26132651176243,
   "end_elevation_m": 457.43882906177726,
   "start_xy": [
    4760954.892463834,
    2698103.963766868
   ],
   "end_xy": [
    4760996.425622757,
    2698079.1267105136
   ]
  },
  "min_100m": {
   "gradient_pct": 7.28179309154973,
   "start_distance_m": 445.0,
   "end_distance_m": 545.0,
   "midpoint_distance_m": 495.0,
   "start_elevation_m": 517.0484485558667,
   "end_elevation_m": 524.3302416474164,
   "start_xy": [
    4761134.430777053,
    2698315.748850853
   ],
   "end_xy": [
    4761085.699361663,
    2698396.3647832163
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.98480861756707,
   "start_distance_m": 165.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 166.0,
   "start_elevation_m": 476.9112895430143,
   "end_elevation_m": 477.4509857153656,
   "start_xy": [
    4761049.488194118,
    2698154.1942676175
   ],
   "end_xy": [
    4761050.857899827,
    2698155.651630079
   ]
  },
  "max_3m": {
   "gradient_pct": 26.84346117705445,
   "start_distance_m": 164.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 165.5,
   "start_elevation_m": 476.645681880054,
   "end_elevation_m": 477.4509857153656,
   "start_xy": [
    4761048.803616418,
    2698153.465328024
   ],
   "end_xy": [
    4761050.857899827,
    2698155.651630079
   ]
  }
 },
 "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": 0.122,
   "obstruction_max_height_m": 10.27,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "8f4becd2ed8ab26772f5cd961ca7d1d0c2823252",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:8c94015b54267da4",
   "python": "3.14.4",
   "numpy": "2.5.3",
   "rasterio": "1.5.1",
   "pyproj": "3.8.0",
   "laspy": "2.7.0",
   "shapely": "2.1.2",
   "pyosmium": "4.3.1",
   "libosmium": "2.23.1",
   "gdal": "3.12.4",
   "proj": "9.8.1",
   "run_id": "remeasure-valley-260921-at",
   "road_pbf": "batch-austria-chunk000.pbf",
   "region_key": "austria",
   "crs": "EPSG:3035",
   "elevation_provider_key": "bev-als",
   "tile_index": "cog-grid",
   "authority": "gip",
   "registry_pbf": "austria-2026-09-11.osm.pbf",
   "tile_index_snapshot": "sha256:b8dc649d37698355"
  },
  "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:3035",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/at/bev-als_dtm_E4760-N2698@20220915.tif",
   "data/cache/at/bev-als_dtm_E4761-N2698@20220915.tif"
  ],
  "calculated_at": "2026-09-22T00:04:57+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/valley-260921/at/batch-austria-chunk000.pbf",
  "osm_snapshot": "",
  "run_id": "remeasure-valley-260921-at",
  "elevation_provider": "BEV ALS DTM 1 m",
  "elevation_licence": "Creative Commons Attribution 4.0 (CC BY 4.0) \u2014 \u00a9 BEV / L\u00e4nder, data.gv.at",
  "elevation_dataset": "ALS DTM H\u00f6henraster 1 m (Bundesamt f\u00fcr Eich- und Vermessungswesen with the L\u00e4nder), EPSG:3035",
  "elevation_tile_ids": [
   "E4760-N2698",
   "E4761-N2698"
  ],
  "elevation_blocks": [
   "N2650000E4750000@2022-09-15"
  ],
  "bev_dsm_release": {
   "N2650000E4750000": "20220915"
  },
  "route_base_cut_m": 274.0,
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "structure_own_ways_source": "map-matched to the road network: the entry carried no way list, so the ways the route runs along were found by geometry (ukclimb.batch.own_ways_by_geometry)",
  "prior_doc": {
   "slug": "discovered-lane-47-2414-15-8144",
   "calculated_at": "2026-09-11T07:23:51+00:00",
   "code_git_sha": null,
   "analysis_version": "0.1.0",
   "run_id": "at-run1-260911",
   "path": "/root/uk-climbs/output/valley-260921/at/priors/discovered-lane-47-2414-15-8144/discovered-lane-47-2414-15-8144.json",
   "spans": 0,
   "sources": []
  },
  "carriageway": {
   "stations": 27,
   "stations_resolved": 27,
   "width_median_m": 6.75,
   "width_p10_m": 4.65,
   "width_min_m": 2.25,
   "width_max_m": 12.0,
   "bounded_share": 0.074,
   "unbounded_share": 0.926,
   "confidence_median": 0.0,
   "width_median_bounded_m": 7.12,
   "window_m": [
    145.0,
    170.0
   ],
   "width_at_max25_m": 8.75,
   "window_stations": 6,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "stations": 27,
    "stations_resolved": 27,
    "width_median_m": 8.75,
    "width_p10_m": 2.4,
    "width_min_m": 1.5,
    "width_max_m": 12.0,
    "bounded_share": 0.444,
    "unbounded_share": 0.556,
    "confidence_median": 0.0,
    "width_median_bounded_m": 4.88,
    "window_m": [
     145.0,
     170.0
    ],
    "width_at_max25_m": 9.88,
    "window_stations": 6,
    "status": "ok",
    "source": "dsm",
    "station_m": 25.0,
    "window_station_m": 5.0,
    "halfwidth_m": 6.0,
    "step_m": 0.25,
    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "remeasured": {
   "on": "2026-09-22",
   "why": "valley-crossing extent re-measure 2026-09-22: low-to-summit (274.0 m -> 819.0 m)",
   "published_max25_pct": 22.9,
   "max25_pct": 22.91
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Stubenberg",
  "county": "Steiermark",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 },
 "review_flags": [
  {
   "kind": "possible-bridge-or-hollow",
   "span_m": [
    229.0,
    398.0
   ],
   "status": "pending-human-review",
   "noted": "2026-09-21",
   "figure_adjusted": false
  }
 ]
}