{
 "ocl_version": "0.1.0",
 "name": "Whitley Avenue",
 "slug": "whitley-avenue",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.49357976323745,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 336.0,
   "end_distance_m": 338.0,
   "start_elevation_m": 153.3094939741377,
   "end_elevation_m": 153.77936556940244,
   "min_gradient_pct": 1.4193115480090057
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.126388301812046,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 335.0,
   "end_distance_m": 338.0,
   "start_elevation_m": 153.08557392034808,
   "end_elevation_m": 153.77936556940244,
   "min_gradient_pct": 1.561059309063258
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.777698816616407,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 335.0,
   "end_distance_m": 340.0,
   "start_elevation_m": 153.08557392034808,
   "end_elevation_m": 154.2244588611789,
   "min_gradient_pct": 1.6752045861332476
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.269248661174004,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 335.0,
   "end_distance_m": 345.0,
   "start_elevation_m": 153.08557392034808,
   "end_elevation_m": 155.31249878646548,
   "min_gradient_pct": 1.8656730741619754
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.056345054690496,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 334.0,
   "end_distance_m": 354.0,
   "start_elevation_m": 152.87087503884482,
   "end_elevation_m": 157.28214404978291,
   "min_gradient_pct": 2.2916249204339323
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.998997170211396,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 314.0,
   "end_distance_m": 339.0,
   "start_elevation_m": 148.50265406733052,
   "end_elevation_m": 154.00240335988337,
   "min_gradient_pct": 2.455479874600087
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.892302659701553,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 311.0,
   "end_distance_m": 361.0,
   "start_elevation_m": 147.84793253143323,
   "end_elevation_m": 158.794083861284,
   "min_gradient_pct": 3.34965240953656
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.556572991850516,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 290.0,
   "end_distance_m": 390.0,
   "start_elevation_m": 143.52713289274527,
   "end_elevation_m": 165.0837058845958,
   "min_gradient_pct": 4.271269331094572
  }
 ],
 "shape": {
  "ascent_concentration": 0.464,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 151.0,
  "shape_class": "stepped"
 },
 "length_m": 398.52518843394944,
 "start_elevation_m": 119.9350913909951,
 "end_elevation_m": 166.4282738285977,
 "endpoint_gain_m": 46.4931824376026,
 "overall_gradient_pct": 11.666309630340534,
 "accumulated_ascent_m": 46.4931824376026,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.777698816616407,
   "start_distance_m": 335.0,
   "end_distance_m": 340.0,
   "midpoint_distance_m": 337.5,
   "start_elevation_m": 153.08557392034808,
   "end_elevation_m": 154.2244588611789,
   "start_xy": [
    377016.53120663046,
    3774796.413898518
   ],
   "end_xy": [
    377016.62461787404,
    3774801.4130258756
   ]
  },
  "max_10m": {
   "gradient_pct": 22.269248661174004,
   "start_distance_m": 335.0,
   "end_distance_m": 345.0,
   "midpoint_distance_m": 340.0,
   "start_elevation_m": 153.08557392034808,
   "end_elevation_m": 155.31249878646548,
   "start_xy": [
    377016.53120663046,
    3774796.413898518
   ],
   "end_xy": [
    377016.71802911756,
    3774806.4121532333
   ]
  },
  "max_20m": {
   "gradient_pct": 22.056345054690496,
   "start_distance_m": 334.0,
   "end_distance_m": 354.0,
   "midpoint_distance_m": 344.0,
   "start_elevation_m": 152.87087503884482,
   "end_elevation_m": 157.28214404978291,
   "start_xy": [
    377016.5125243818,
    3774795.4140730463
   ],
   "end_xy": [
    377016.88616935594,
    3774815.4105824777
   ]
  },
  "max_25m": {
   "gradient_pct": 21.998997170211396,
   "start_distance_m": 314.0,
   "end_distance_m": 339.0,
   "midpoint_distance_m": 326.5,
   "start_elevation_m": 148.50265406733052,
   "end_elevation_m": 154.00240335988337,
   "start_xy": [
    377016.1388794076,
    3774775.417563615
   ],
   "end_xy": [
    377016.6059356253,
    3774800.413200404
   ]
  },
  "max_50m": {
   "gradient_pct": 21.892302659701553,
   "start_distance_m": 311.0,
   "end_distance_m": 361.0,
   "midpoint_distance_m": 336.0,
   "start_elevation_m": 147.84793253143323,
   "end_elevation_m": 158.794083861284,
   "start_xy": [
    377016.0828326615,
    3774772.4180872003
   ],
   "end_xy": [
    377017.0169450969,
    3774822.4093607785
   ]
  },
  "max_100m": {
   "gradient_pct": 21.556572991850516,
   "start_distance_m": 290.0,
   "end_distance_m": 390.0,
   "midpoint_distance_m": 340.0,
   "start_elevation_m": 143.52713289274527,
   "end_elevation_m": 165.0837058845958,
   "start_xy": [
    377015.7808820361,
    3774751.4206439876
   ],
   "end_xy": [
    377017.5587303094,
    3774851.404299454
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.6752045861332476,
   "start_distance_m": 3.0,
   "end_distance_m": 8.0,
   "midpoint_distance_m": 5.5,
   "start_elevation_m": 119.99831390493345,
   "end_elevation_m": 120.08207413424012,
   "start_xy": [
    377013.5711637263,
    3774464.4497443563
   ],
   "end_xy": [
    377013.6364366033,
    3774469.4493182832
   ]
  },
  "min_10m": {
   "gradient_pct": 1.8656730741619754,
   "start_distance_m": 1.0,
   "end_distance_m": 11.0,
   "midpoint_distance_m": 6.0,
   "start_elevation_m": 119.96112571025705,
   "end_elevation_m": 120.14769301767325,
   "start_xy": [
    377013.5450545754,
    3774462.4499147856
   ],
   "end_xy": [
    377013.6756003296,
    3774472.4490626394
   ]
  },
  "min_20m": {
   "gradient_pct": 2.2916249204339323,
   "start_distance_m": 1.0,
   "end_distance_m": 21.0,
   "midpoint_distance_m": 11.0,
   "start_elevation_m": 119.96112571025705,
   "end_elevation_m": 120.41945069434384,
   "start_xy": [
    377013.5450545754,
    3774462.4499147856
   ],
   "end_xy": [
    377013.80614608375,
    3774482.4482104937
   ]
  },
  "min_25m": {
   "gradient_pct": 2.455479874600087,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 119.9350913909951,
   "end_elevation_m": 120.54896135964512,
   "start_xy": [
    377013.532,
    3774461.45
   ],
   "end_xy": [
    377013.85836438544,
    3774486.447869635
   ]
  },
  "min_50m": {
   "gradient_pct": 3.34965240953656,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 119.9350913909951,
   "end_elevation_m": 121.60991759576338,
   "start_xy": [
    377013.532,
    3774461.45
   ],
   "end_xy": [
    377014.1847287708,
    3774511.44573927
   ]
  },
  "min_100m": {
   "gradient_pct": 4.271269331094572,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 119.9350913909951,
   "end_elevation_m": 124.20636072208967,
   "start_xy": [
    377013.532,
    3774461.45
   ],
   "end_xy": [
    377014.83745754167,
    3774561.44147854
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.49357976323745,
   "start_distance_m": 336.0,
   "end_distance_m": 338.0,
   "midpoint_distance_m": 337.0,
   "start_elevation_m": 153.3094939741377,
   "end_elevation_m": 153.77936556940244,
   "start_xy": [
    377016.5498888792,
    3774797.4137239894
   ],
   "end_xy": [
    377016.5872533766,
    3774799.4133749325
   ]
  },
  "max_3m": {
   "gradient_pct": 23.126388301812046,
   "start_distance_m": 335.0,
   "end_distance_m": 338.0,
   "midpoint_distance_m": 336.5,
   "start_elevation_m": 153.08557392034808,
   "end_elevation_m": 153.77936556940244,
   "start_xy": [
    377016.53120663046,
    3774796.413898518
   ],
   "end_xy": [
    377016.5872533766,
    3774799.4133749325
   ]
  }
 },
 "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": 0.028,
   "obstruction_max_height_m": 10.72,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "c9b5ca88920e832685f553c95e97ad4f79ca9700",
   "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": "us-west-la-hills",
   "road_pbf": "us-west-la-hills-block-batch-us-west-la-hills.osm.pbf",
   "region_key": "usa-ca-east",
   "crs": "EPSG:26911",
   "elevation_provider_key": "usa3dep",
   "authority": "usa-inventory",
   "registry_pbf": "california-2026-09-29.osm.pbf",
   "tile_index_snapshot": "sha256:c98325348ae2ec01"
  },
  "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:26911",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ca-east/USGS_1M_11_x37y378_CA_LosAngeles_B23.tif"
  ],
  "calculated_at": "2026-09-29T09:04:47+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/us-west-la-hills-block-batch-us-west-la-hills.osm.pbf",
  "osm_snapshot": "",
  "run_id": "us-west-la-hills",
  "elevation_provider": "USGS 3DEP (The National Map)",
  "elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
  "elevation_dataset": "USGS 3DEP 1 m DEM, CA_LosAngeles_B23 (collected 2023-24)",
  "elevation_tile_ids": [
   "x37y378"
  ],
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/CA_LosAngeles_1_B23",
   "ept_crs": "EPSG:3857",
   "station_coverage": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0,
   "window_coverage": {
    "5": 1.0,
    "10": 1.0,
    "20": 1.0,
    "25": 1.0
   }
  },
  "structure_own_ways": 3,
  "carriageway": {
   "stations": 22,
   "stations_resolved": 22,
   "width_median_m": 9.25,
   "width_p10_m": 7.75,
   "width_min_m": 7.25,
   "width_max_m": 12.0,
   "bounded_share": 0.0,
   "unbounded_share": 1.0,
   "confidence_median": 0.0,
   "window_m": [
    314.0,
    339.0
   ],
   "width_at_max25_m": 9.0,
   "window_stations": 7,
   "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": {
    "status": "unavailable \u2014 no DSM raster (surface model absent or point-cloud only, which cannot serve off-line samples)"
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Los Angeles",
  "county": "California"
 }
}