{
 "ocl_version": "0.1.0",
 "name": "Oliver Street",
 "slug": "oliver-street",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 21.612157033045776,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 504.0,
   "end_distance_m": 506.0,
   "start_elevation_m": 139.88461097738835,
   "end_elevation_m": 140.31685411804926,
   "min_gradient_pct": -2.3790147116073967
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.605211173985595,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 504.0,
   "end_distance_m": 507.0,
   "start_elevation_m": 139.88461097738835,
   "end_elevation_m": 140.53276731260792,
   "min_gradient_pct": -2.1327389093765228
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.485578606418017,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 504.0,
   "end_distance_m": 509.0,
   "start_elevation_m": 139.88461097738835,
   "end_elevation_m": 140.95888990770925,
   "min_gradient_pct": -1.8931602224986932
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.988500878764853,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 517.0,
   "end_distance_m": 527.0,
   "start_elevation_m": 142.59746592550442,
   "end_elevation_m": 144.6963160133809,
   "min_gradient_pct": -1.0163321070693598
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.941315985550517,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 504.0,
   "end_distance_m": 524.0,
   "start_elevation_m": 139.88461097738835,
   "end_elevation_m": 144.07287417449845,
   "min_gradient_pct": 0.8288432973034077
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.836299594900538,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 503.0,
   "end_distance_m": 528.0,
   "start_elevation_m": 139.68691904751734,
   "end_elevation_m": 144.89599394624247,
   "min_gradient_pct": 1.6594607859380517
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.718663576330353,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 476.0,
   "end_distance_m": 526.0,
   "start_elevation_m": 134.1306755815885,
   "end_elevation_m": 144.49000736975367,
   "min_gradient_pct": 3.860272686173346
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.23381039058407,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 439.0,
   "end_distance_m": 539.0,
   "start_elevation_m": 129.24122136594312,
   "end_elevation_m": 146.4750317565272,
   "min_gradient_pct": 4.9661643510765145
  }
 ],
 "shape": {
  "ascent_concentration": 0.433,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 90.0,
  "shape_class": "sustained"
 },
 "length_m": 540.1837497764297,
 "start_elevation_m": 95.95992275905698,
 "end_elevation_m": 146.57352436153985,
 "endpoint_gain_m": 50.61360160248287,
 "overall_gradient_pct": 9.36970088852742,
 "accumulated_ascent_m": 50.80030574649392,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.485578606418017,
   "start_distance_m": 504.0,
   "end_distance_m": 509.0,
   "midpoint_distance_m": 506.5,
   "start_elevation_m": 139.88461097738835,
   "end_elevation_m": 140.95888990770925,
   "start_xy": [
    548634.6832561922,
    4173268.5234115464
   ],
   "end_xy": [
    548636.6834280784,
    4173263.9409108725
   ]
  },
  "max_10m": {
   "gradient_pct": 20.988500878764853,
   "start_distance_m": 517.0,
   "end_distance_m": 527.0,
   "midpoint_distance_m": 522.0,
   "start_elevation_m": 142.59746592550442,
   "end_elevation_m": 144.6963160133809,
   "start_xy": [
    548639.8837030963,
    4173256.6089097946
   ],
   "end_xy": [
    548643.8840468687,
    4173247.443908447
   ]
  },
  "max_20m": {
   "gradient_pct": 20.941315985550517,
   "start_distance_m": 504.0,
   "end_distance_m": 524.0,
   "midpoint_distance_m": 514.0,
   "start_elevation_m": 139.88461097738835,
   "end_elevation_m": 144.07287417449845,
   "start_xy": [
    548634.6832561922,
    4173268.5234115464
   ],
   "end_xy": [
    548642.683943737,
    4173250.193408851
   ]
  },
  "max_25m": {
   "gradient_pct": 20.836299594900538,
   "start_distance_m": 503.0,
   "end_distance_m": 528.0,
   "midpoint_distance_m": 515.5,
   "start_elevation_m": 139.68691904751734,
   "end_elevation_m": 144.89599394624247,
   "start_xy": [
    548634.283221815,
    4173269.439911681
   ],
   "end_xy": [
    548644.2840812459,
    4173246.527408312
   ]
  },
  "max_50m": {
   "gradient_pct": 20.718663576330353,
   "start_distance_m": 476.0,
   "end_distance_m": 526.0,
   "midpoint_distance_m": 501.0,
   "start_elevation_m": 134.1306755815885,
   "end_elevation_m": 144.49000736975367,
   "start_xy": [
    548623.4822936297,
    4173294.18541532
   ],
   "end_xy": [
    548643.4840124914,
    4173248.360408582
   ]
  },
  "max_100m": {
   "gradient_pct": 17.23381039058407,
   "start_distance_m": 439.0,
   "end_distance_m": 539.0,
   "midpoint_distance_m": 489.0,
   "start_elevation_m": 129.24122136594312,
   "end_elevation_m": 146.4750317565272,
   "start_xy": [
    548608.658685382,
    4173328.0861202925
   ],
   "end_xy": [
    548648.6844593955,
    4173236.4459068296
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.8931602224986932,
   "start_distance_m": 147.0,
   "end_distance_m": 152.0,
   "midpoint_distance_m": 149.5,
   "start_elevation_m": 103.61601375197077,
   "end_elevation_m": 103.52135574084583,
   "start_xy": [
    548492.0835658682,
    4173595.798988207
   ],
   "end_xy": [
    548494.0883319041,
    4173591.218495532
   ]
  },
  "min_10m": {
   "gradient_pct": -1.0163321070693598,
   "start_distance_m": 143.0,
   "end_distance_m": 153.0,
   "midpoint_distance_m": 148.0,
   "start_elevation_m": 103.62849480898535,
   "end_elevation_m": 103.52686159827842,
   "start_xy": [
    548490.544503885,
    4173599.4908859823
   ],
   "end_xy": [
    548494.4892851113,
    4173590.3023969973
   ]
  },
  "min_20m": {
   "gradient_pct": 0.8288432973034077,
   "start_distance_m": 135.0,
   "end_distance_m": 155.0,
   "midpoint_distance_m": 145.0,
   "start_elevation_m": 103.42035363080404,
   "end_elevation_m": 103.58612229026473,
   "start_xy": [
    548487.4972310248,
    4173606.8877858813
   ],
   "end_xy": [
    548495.2911915256,
    4173588.470199927
   ]
  },
  "min_25m": {
   "gradient_pct": 1.6594607859380517,
   "start_distance_m": 132.0,
   "end_distance_m": 157.0,
   "midpoint_distance_m": 144.5,
   "start_elevation_m": 103.26432859074639,
   "end_elevation_m": 103.6791937872309,
   "start_xy": [
    548486.3545037021,
    4173609.6616233434
   ],
   "end_xy": [
    548496.09309794,
    4173586.6380028576
   ]
  },
  "min_50m": {
   "gradient_pct": 3.860272686173346,
   "start_distance_m": 108.0,
   "end_distance_m": 158.0,
   "midpoint_distance_m": 133.0,
   "start_elevation_m": 101.80461140126613,
   "end_elevation_m": 103.7347477443528,
   "start_xy": [
    548477.2126851216,
    4173631.8523230404
   ],
   "end_xy": [
    548496.4940511471,
    4173585.7219043225
   ]
  },
  "min_100m": {
   "gradient_pct": 4.9661643510765145,
   "start_distance_m": 58.0,
   "end_distance_m": 158.0,
   "midpoint_distance_m": 108.0,
   "start_elevation_m": 98.76858339327629,
   "end_elevation_m": 103.7347477443528,
   "start_xy": [
    548457.617528899,
    4173677.8507055673
   ],
   "end_xy": [
    548496.4940511471,
    4173585.7219043225
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 21.612157033045776,
   "start_distance_m": 504.0,
   "end_distance_m": 506.0,
   "midpoint_distance_m": 505.0,
   "start_elevation_m": 139.88461097738835,
   "end_elevation_m": 140.31685411804926,
   "start_xy": [
    548634.6832561922,
    4173268.5234115464
   ],
   "end_xy": [
    548635.4833249467,
    4173266.690411277
   ]
  },
  "max_3m": {
   "gradient_pct": 21.605211173985595,
   "start_distance_m": 504.0,
   "end_distance_m": 507.0,
   "midpoint_distance_m": 505.5,
   "start_elevation_m": 139.88461097738835,
   "end_elevation_m": 140.53276731260792,
   "start_xy": [
    548634.6832561922,
    4173268.5234115464
   ],
   "end_xy": [
    548635.883359324,
    4173265.7739111423
   ]
  }
 },
 "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": 0.024,
   "obstruction_max_height_m": 10.33,
   "flagged_windows_m": [
    100
   ]
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "bef8f0c688e0409eaf74fa4b531091cae7766c61",
   "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-sf-eastbay",
   "road_pbf": "us-west-sf-eastbay-block-batch-us-west-sf-eastbay.osm.pbf",
   "region_key": "usa-ca",
   "crs": "EPSG:26910",
   "elevation_provider_key": "usa3dep",
   "authority": "usa-inventory",
   "registry_pbf": "california-2026-09-29.osm.pbf",
   "tile_index_snapshot": "sha256:3e06ad0d5e78884c"
  },
  "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:26910",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ca/USGS_1M_10_x54y418_CA_SanFrancisco_B23.tif"
  ],
  "calculated_at": "2026-09-29T07:26:45+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/us-west-sf-eastbay-block-batch-us-west-sf-eastbay.osm.pbf",
  "osm_snapshot": "",
  "run_id": "us-west-sf-eastbay",
  "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_SanFrancisco_B23 (collected 2023)",
  "elevation_tile_ids": [
   "x54y418"
  ],
  "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_SanFrancisco_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": 1,
  "carriageway": {
   "stations": 28,
   "stations_resolved": 28,
   "width_median_m": 10.5,
   "width_p10_m": 7.78,
   "width_min_m": 7.0,
   "width_max_m": 12.0,
   "bounded_share": 0.0,
   "unbounded_share": 1.0,
   "confidence_median": 0.0,
   "window_m": [
    503.0,
    528.0
   ],
   "width_at_max25_m": 8.0,
   "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": "Merced-McLaren",
  "county": "California"
 }
}