{
 "ocl_version": "0.1.0",
 "name": "Laguna Street",
 "slug": "laguna-street-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 21.598143932609304,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 451.0,
   "end_distance_m": 453.0,
   "start_elevation_m": 63.24884952453327,
   "end_elevation_m": 63.680812403185456,
   "min_gradient_pct": -1.9020351274683378
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.684563088282022,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 451.0,
   "end_distance_m": 454.0,
   "start_elevation_m": 63.24884952453327,
   "end_elevation_m": 63.89938641718173,
   "min_gradient_pct": -1.6930941759518703
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.470935506602444,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 449.0,
   "end_distance_m": 454.0,
   "start_elevation_m": 62.82583964185161,
   "end_elevation_m": 63.89938641718173,
   "min_gradient_pct": -1.6307881935962598
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.218894772589252,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 444.0,
   "end_distance_m": 454.0,
   "start_elevation_m": 61.777496939922806,
   "end_elevation_m": 63.89938641718173,
   "min_gradient_pct": -1.2399669735132335
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.096125558870753,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 467.0,
   "end_distance_m": 487.0,
   "start_elevation_m": 66.60377782126122,
   "end_elevation_m": 70.82300293303537,
   "min_gradient_pct": 0.08762409174583041
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.044424039298434,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 449.0,
   "end_distance_m": 474.0,
   "start_elevation_m": 62.82583964185161,
   "end_elevation_m": 68.08694565167622,
   "min_gradient_pct": 1.4667753760696485
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.005477888404428,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 440.0,
   "end_distance_m": 490.0,
   "start_elevation_m": 60.94093702857703,
   "end_elevation_m": 71.44367597277925,
   "min_gradient_pct": 3.871338073436476
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.1397693192362,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 430.0,
   "end_distance_m": 530.0,
   "start_elevation_m": 59.81881455391042,
   "end_elevation_m": 76.95858387314662,
   "min_gradient_pct": 4.633337795725524
  }
 ],
 "shape": {
  "ascent_concentration": 0.377,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 92.0,
  "shape_class": "sustained"
 },
 "length_m": 819.9999999997772,
 "start_elevation_m": 17.115727113982583,
 "end_elevation_m": 105.95330073356313,
 "endpoint_gain_m": 88.83757361958054,
 "overall_gradient_pct": 10.833850441415205,
 "accumulated_ascent_m": 89.27918092902618,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.470935506602444,
   "start_distance_m": 449.0,
   "end_distance_m": 454.0,
   "midpoint_distance_m": 451.5,
   "start_elevation_m": 62.82583964185161,
   "end_elevation_m": 63.89938641718173,
   "start_xy": [
    550187.6864967182,
    4183185.384366403
   ],
   "end_xy": [
    550188.5067499954,
    4183180.452106823
   ]
  },
  "max_10m": {
   "gradient_pct": 21.218894772589252,
   "start_distance_m": 444.0,
   "end_distance_m": 454.0,
   "midpoint_distance_m": 449.0,
   "start_elevation_m": 61.777496939922806,
   "end_elevation_m": 63.89938641718173,
   "start_xy": [
    550186.866243441,
    4183190.3166259825
   ],
   "end_xy": [
    550188.5067499954,
    4183180.452106823
   ]
  },
  "max_20m": {
   "gradient_pct": 21.096125558870753,
   "start_distance_m": 467.0,
   "end_distance_m": 487.0,
   "midpoint_distance_m": 477.0,
   "start_elevation_m": 66.60377782126122,
   "end_elevation_m": 70.82300293303537,
   "start_xy": [
    550190.6394085161,
    4183167.628231916
   ],
   "end_xy": [
    550193.9204216248,
    4183147.8991935975
   ]
  },
  "max_25m": {
   "gradient_pct": 21.044424039298434,
   "start_distance_m": 449.0,
   "end_distance_m": 474.0,
   "midpoint_distance_m": 461.5,
   "start_elevation_m": 62.82583964185161,
   "end_elevation_m": 68.08694565167622,
   "start_xy": [
    550187.6864967182,
    4183185.384366403
   ],
   "end_xy": [
    550191.7877631042,
    4183160.7230685046
   ]
  },
  "max_50m": {
   "gradient_pct": 21.005477888404428,
   "start_distance_m": 440.0,
   "end_distance_m": 490.0,
   "midpoint_distance_m": 465.0,
   "start_elevation_m": 60.94093702857703,
   "end_elevation_m": 71.44367597277925,
   "start_xy": [
    550186.2100408192,
    4183194.2624336462
   ],
   "end_xy": [
    550194.4125735911,
    4183144.9398378497
   ]
  },
  "max_100m": {
   "gradient_pct": 17.1397693192362,
   "start_distance_m": 430.0,
   "end_distance_m": 530.0,
   "midpoint_distance_m": 480.0,
   "start_elevation_m": 59.81881455391042,
   "end_elevation_m": 76.95858387314662,
   "start_xy": [
    550184.5668176999,
    4183204.1264994494
   ],
   "end_xy": [
    550201.0119004376,
    4183105.488206421
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.6307881935962598,
   "start_distance_m": 425.0,
   "end_distance_m": 430.0,
   "midpoint_distance_m": 427.5,
   "start_elevation_m": 59.900353963590234,
   "end_elevation_m": 59.81881455391042,
   "start_xy": [
    550183.74805146,
    4183209.059006098
   ],
   "end_xy": [
    550184.5668176999,
    4183204.1264994494
   ]
  },
  "min_10m": {
   "gradient_pct": -1.2399669735132335,
   "start_distance_m": 420.0,
   "end_distance_m": 430.0,
   "midpoint_distance_m": 425.0,
   "start_elevation_m": 59.942811251261745,
   "end_elevation_m": 59.81881455391042,
   "start_xy": [
    550182.9289803207,
    4183213.9914620905
   ],
   "end_xy": [
    550184.5668176999,
    4183204.1264994494
   ]
  },
  "min_20m": {
   "gradient_pct": 0.08762409174583041,
   "start_distance_m": 412.0,
   "end_distance_m": 432.0,
   "midpoint_distance_m": 422.0,
   "start_elevation_m": 59.84016348053564,
   "end_elevation_m": 59.8576882988848,
   "start_xy": [
    550181.6166550164,
    4183221.8830907117
   ],
   "end_xy": [
    550184.8954519134,
    4183202.153684725
   ]
  },
  "min_25m": {
   "gradient_pct": 1.4667753760696485,
   "start_distance_m": 409.0,
   "end_distance_m": 434.0,
   "midpoint_distance_m": 421.5,
   "start_elevation_m": 59.63352234211946,
   "end_elevation_m": 60.000216186136875,
   "start_xy": [
    550181.1249418724,
    4183224.8425193164
   ],
   "end_xy": [
    550185.2254824949,
    4183200.181102708
   ]
  },
  "min_50m": {
   "gradient_pct": 3.871338073436476,
   "start_distance_m": 713.0,
   "end_distance_m": 763.0,
   "midpoint_distance_m": 738.0,
   "start_elevation_m": 101.12849058030278,
   "end_elevation_m": 103.06415961702102,
   "start_xy": [
    550231.0512944233,
    4182924.972135416
   ],
   "end_xy": [
    550239.2230119419,
    4182875.6444655703
   ]
  },
  "min_100m": {
   "gradient_pct": 4.633337795725524,
   "start_distance_m": 720.0,
   "end_distance_m": 820.0,
   "midpoint_distance_m": 770.0,
   "start_elevation_m": 101.3199629378376,
   "end_elevation_m": 105.95330073356313,
   "start_xy": [
    550232.1776258389,
    4182918.063345633
   ],
   "end_xy": [
    550248.568879,
    4182819.416048755
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 21.598143932609304,
   "start_distance_m": 451.0,
   "end_distance_m": 453.0,
   "midpoint_distance_m": 452.0,
   "start_elevation_m": 63.24884952453327,
   "end_elevation_m": 63.680812403185456,
   "start_xy": [
    550188.0145980291,
    4183183.411462571
   ],
   "end_xy": [
    550188.34269934,
    4183181.438558739
   ]
  },
  "max_3m": {
   "gradient_pct": 21.684563088282022,
   "start_distance_m": 451.0,
   "end_distance_m": 454.0,
   "midpoint_distance_m": 452.5,
   "start_elevation_m": 63.24884952453327,
   "end_elevation_m": 63.89938641718173,
   "start_xy": [
    550188.0145980291,
    4183183.411462571
   ],
   "end_xy": [
    550188.5067499954,
    4183180.452106823
   ]
  }
 },
 "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": 0.043,
   "obstruction_max_height_m": 11.54,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": []
 },
 "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_x55y419_CA_SanFrancisco_B23.tif"
  ],
  "calculated_at": "2026-09-29T07:49:16+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": [
   "x55y419"
  ],
  "route_summit_trim_m": 455.6,
  "route_summit_trim_loss_m": 4.7,
  "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": 6,
  "carriageway": {
   "stations": 39,
   "stations_resolved": 39,
   "width_median_m": 10.5,
   "width_p10_m": 7.75,
   "width_min_m": 6.0,
   "width_max_m": 12.0,
   "bounded_share": 0.0,
   "unbounded_share": 1.0,
   "confidence_median": 0.0,
   "window_m": [
    449.0,
    474.0
   ],
   "width_at_max25_m": 11.75,
   "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": "Richmond-Presidio-Marina",
  "county": "California"
 }
}