{
 "ocl_version": "0.1.0",
 "name": "Lister Street",
 "slug": "lister-street",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 21.771864558354537,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 298.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 411.6804766092107,
   "end_elevation_m": 412.1159139003778,
   "min_gradient_pct": -3.5277849643364334
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.537948092081177,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 298.0,
   "end_distance_m": 301.0,
   "start_elevation_m": 411.6804766092107,
   "end_elevation_m": 412.32661505197314,
   "min_gradient_pct": -3.0820343261818075
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.00284980702554,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 288.0,
   "end_distance_m": 293.0,
   "start_elevation_m": 409.63712209866657,
   "end_elevation_m": 410.68726458901784,
   "min_gradient_pct": -2.3551057451163615
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.595832889922008,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 283.0,
   "end_distance_m": 293.0,
   "start_elevation_m": 408.62768130002564,
   "end_elevation_m": 410.68726458901784,
   "min_gradient_pct": -1.6419972983840125
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.4973199133471,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 281.0,
   "end_distance_m": 301.0,
   "start_elevation_m": 408.2271510693037,
   "end_elevation_m": 412.32661505197314,
   "min_gradient_pct": -1.4127459535583853
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.445153481572333,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 285.0,
   "end_distance_m": 310.0,
   "start_elevation_m": 409.04154148766315,
   "end_elevation_m": 414.15282985805624,
   "min_gradient_pct": -1.171721407914447
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.18299303793208,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 281.0,
   "end_distance_m": 331.0,
   "start_elevation_m": 408.2271510693037,
   "end_elevation_m": 418.31864758826976,
   "min_gradient_pct": -0.2771705778720843
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.03132886348436,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 265.0,
   "end_distance_m": 365.0,
   "start_elevation_m": 405.5026354370817,
   "end_elevation_m": 423.5339643005661,
   "min_gradient_pct": 0.11637907457884467
  }
 ],
 "shape": {
  "ascent_concentration": 0.695,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 107.0,
  "shape_class": "stepped"
 },
 "length_m": 500.30523171890957,
 "start_elevation_m": 399.35892690918524,
 "end_elevation_m": 427.4775301203659,
 "endpoint_gain_m": 28.11860321118064,
 "overall_gradient_pct": 5.620289660888203,
 "accumulated_ascent_m": 28.75039100717504,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.00284980702554,
   "start_distance_m": 288.0,
   "end_distance_m": 293.0,
   "midpoint_distance_m": 290.5,
   "start_elevation_m": 409.63712209866657,
   "end_elevation_m": 410.68726458901784,
   "start_xy": [
    643654.3900534005,
    4662631.620671185
   ],
   "end_xy": [
    643652.4798174447,
    4662626.999957106
   ]
  },
  "max_10m": {
   "gradient_pct": 20.595832889922008,
   "start_distance_m": 283.0,
   "end_distance_m": 293.0,
   "midpoint_distance_m": 288.0,
   "start_elevation_m": 408.62768130002564,
   "end_elevation_m": 410.68726458901784,
   "start_xy": [
    643656.3002893564,
    4662636.241385263
   ],
   "end_xy": [
    643652.4798174447,
    4662626.999957106
   ]
  },
  "max_20m": {
   "gradient_pct": 20.4973199133471,
   "start_distance_m": 281.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 291.0,
   "start_elevation_m": 408.2271510693037,
   "end_elevation_m": 412.32661505197314,
   "start_xy": [
    643657.0643837387,
    4662638.089670895
   ],
   "end_xy": [
    643649.4234399154,
    4662619.606814581
   ]
  },
  "max_25m": {
   "gradient_pct": 20.445153481572333,
   "start_distance_m": 285.0,
   "end_distance_m": 310.0,
   "midpoint_distance_m": 297.5,
   "start_elevation_m": 409.04154148766315,
   "end_elevation_m": 414.15282985805624,
   "start_xy": [
    643655.5361949741,
    4662634.393099631
   ],
   "end_xy": [
    643645.9850151949,
    4662611.289529241
   ]
  },
  "max_50m": {
   "gradient_pct": 20.18299303793208,
   "start_distance_m": 281.0,
   "end_distance_m": 331.0,
   "midpoint_distance_m": 306.0,
   "start_elevation_m": 408.2271510693037,
   "end_elevation_m": 418.31864758826976,
   "start_xy": [
    643657.0643837387,
    4662638.089670895
   ],
   "end_xy": [
    643637.9620241803,
    4662591.882530112
   ]
  },
  "max_100m": {
   "gradient_pct": 18.03132886348436,
   "start_distance_m": 265.0,
   "end_distance_m": 365.0,
   "midpoint_distance_m": 315.0,
   "start_elevation_m": 405.5026354370817,
   "end_elevation_m": 423.5339643005661,
   "start_xy": [
    643663.037595702,
    4662652.931988458
   ],
   "end_xy": [
    643624.6799852684,
    4662560.588026469
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.3551057451163615,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 399.35892690918524,
   "end_elevation_m": 399.2411716219294,
   "start_xy": [
    643768.597,
    4662895.963
   ],
   "end_xy": [
    643766.5690048252,
    4662891.392744475
   ]
  },
  "min_10m": {
   "gradient_pct": -1.6419972983840125,
   "start_distance_m": 9.0,
   "end_distance_m": 19.0,
   "midpoint_distance_m": 14.0,
   "start_elevation_m": 399.24180055555814,
   "end_elevation_m": 399.07760082571974,
   "start_xy": [
    643764.9466086853,
    4662887.736540054
   ],
   "end_xy": [
    643760.8906183358,
    4662878.596029002
   ]
  },
  "min_20m": {
   "gradient_pct": -1.4127459535583853,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 399.35892690918524,
   "end_elevation_m": 399.07637771847357,
   "start_xy": [
    643768.597,
    4662895.963
   ],
   "end_xy": [
    643760.4850193008,
    4662877.681977897
   ]
  },
  "min_25m": {
   "gradient_pct": -1.171721407914447,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 399.35892690918524,
   "end_elevation_m": 399.06599655720663,
   "start_xy": [
    643768.597,
    4662895.963
   ],
   "end_xy": [
    643758.4570241261,
    4662873.111722372
   ]
  },
  "min_50m": {
   "gradient_pct": -0.2771705778720843,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 399.35892690918524,
   "end_elevation_m": 399.2203416202492,
   "start_xy": [
    643768.597,
    4662895.963
   ],
   "end_xy": [
    643748.3170482522,
    4662850.260444743
   ]
  },
  "min_100m": {
   "gradient_pct": 0.11637907457884467,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 399.35892690918524,
   "end_elevation_m": 399.4753059837641,
   "start_xy": [
    643768.597,
    4662895.963
   ],
   "end_xy": [
    643728.0370965046,
    4662804.557889485
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 21.771864558354537,
   "start_distance_m": 298.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 299.0,
   "start_elevation_m": 411.6804766092107,
   "end_elevation_m": 412.1159139003778,
   "start_xy": [
    643650.5695814888,
    4662622.379243028
   ],
   "end_xy": [
    643649.8054871066,
    4662620.530957397
   ]
  },
  "max_3m": {
   "gradient_pct": 21.537948092081177,
   "start_distance_m": 298.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 299.5,
   "start_elevation_m": 411.6804766092107,
   "end_elevation_m": 412.32661505197314,
   "start_xy": [
    643650.5695814888,
    4662622.379243028
   ],
   "end_xy": [
    643649.4234399154,
    4662619.606814581
   ]
  }
 },
 "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": 0.046,
   "obstruction_max_height_m": 14.9,
   "flagged_windows_m": [
    50,
    100
   ]
  },
  "review": [],
  "extent": []
 },
 "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:26917",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ny-west/USGS_one_meter_x64y467_NY_Southwest_East_2017.tif"
  ],
  "calculated_at": "2026-09-06T13:03:26+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-york-2026-09-06-batch-band1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ny-run3-260906",
  "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, NY_Southwest_East_2017 (collected 2017)",
  "elevation_tile_ids": [
   "x64y467"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://usgs-lidar-public.s3-us-west-2.amazonaws.com/USGS_LPC_NY_Southwest_East_2017_LAS_2018",
   "ept_crs": "EPSG:3857",
   "station_coverage": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Jamestown",
  "county": "New York"
 }
}