{
 "ocl_version": "0.1.0",
 "name": "Locust Road",
 "slug": "locust-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.596280107981386,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 68.0,
   "end_distance_m": 70.0,
   "start_elevation_m": 147.0761741166997,
   "end_elevation_m": 147.62809971885932,
   "min_gradient_pct": 0.623772490553165
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.26996102764474,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 68.0,
   "end_distance_m": 71.0,
   "start_elevation_m": 147.0761741166997,
   "end_elevation_m": 147.89427294752903,
   "min_gradient_pct": 0.9300961776470255
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.31975253679343,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 67.0,
   "end_distance_m": 72.0,
   "start_elevation_m": 146.82817979253872,
   "end_elevation_m": 148.1441674193784,
   "min_gradient_pct": 0.9523904352840873
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.509281016155967,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 68.0,
   "end_distance_m": 78.0,
   "start_elevation_m": 147.0761741166997,
   "end_elevation_m": 149.6271022183153,
   "min_gradient_pct": 1.2257545219250687
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.706095533136363,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 63.0,
   "end_distance_m": 83.0,
   "start_elevation_m": 145.87010979051695,
   "end_elevation_m": 150.81132889714422,
   "min_gradient_pct": 1.4419485804916121
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.4518055775078,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 62.0,
   "end_distance_m": 87.0,
   "start_elevation_m": 145.64076946181788,
   "end_elevation_m": 151.75372085619483,
   "min_gradient_pct": 1.5392746827568544
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.587226776485977,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 57.0,
   "end_distance_m": 107.0,
   "start_elevation_m": 144.53666689641074,
   "end_elevation_m": 156.33028028465372,
   "min_gradient_pct": 1.690134143429816
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.304558485516623,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 51.0,
   "end_distance_m": 151.0,
   "start_elevation_m": 143.45868285445897,
   "end_elevation_m": 163.7632413399756,
   "min_gradient_pct": 1.943206588733375
  }
 ],
 "shape": {
  "ascent_concentration": 0.517,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 152.0,
  "shape_class": "stepped"
 },
 "length_m": 736.892423751645,
 "start_elevation_m": 137.68393107384992,
 "end_elevation_m": 195.94569814385815,
 "endpoint_gain_m": 58.26176707000823,
 "overall_gradient_pct": 7.906414178257886,
 "accumulated_ascent_m": 58.26353407210064,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.31975253679343,
   "start_distance_m": 67.0,
   "end_distance_m": 72.0,
   "midpoint_distance_m": 69.5,
   "start_elevation_m": 146.82817979253872,
   "end_elevation_m": 148.1441674193784,
   "start_xy": [
    342909.61205654044,
    4713636.926064584
   ],
   "end_xy": [
    342904.7007298392,
    4713636.074897443
   ]
  },
  "max_10m": {
   "gradient_pct": 25.509281016155967,
   "start_distance_m": 68.0,
   "end_distance_m": 78.0,
   "midpoint_distance_m": 73.0,
   "start_elevation_m": 147.0761741166997,
   "end_elevation_m": 149.6271022183153,
   "start_xy": [
    342908.61865094694,
    4713636.811411513
   ],
   "end_xy": [
    342898.9355958529,
    4713634.412600802
   ]
  },
  "max_20m": {
   "gradient_pct": 24.706095533136363,
   "start_distance_m": 63.0,
   "end_distance_m": 83.0,
   "midpoint_distance_m": 73.0,
   "start_elevation_m": 145.87010979051695,
   "end_elevation_m": 150.81132889714422,
   "start_xy": [
    342913.5856789143,
    4713637.384676871
   ],
   "end_xy": [
    342894.131317531,
    4713633.027353602
   ]
  },
  "max_25m": {
   "gradient_pct": 24.4518055775078,
   "start_distance_m": 62.0,
   "end_distance_m": 87.0,
   "midpoint_distance_m": 74.5,
   "start_elevation_m": 145.64076946181788,
   "end_elevation_m": 151.75372085619483,
   "start_xy": [
    342914.57908450783,
    4713637.499329942
   ],
   "end_xy": [
    342890.33465587796,
    4713631.776956817
   ]
  },
  "max_50m": {
   "gradient_pct": 23.587226776485977,
   "start_distance_m": 57.0,
   "end_distance_m": 107.0,
   "midpoint_distance_m": 82.0,
   "start_elevation_m": 144.53666689641074,
   "end_elevation_m": 156.33028028465372,
   "start_xy": [
    342919.5461124752,
    4713638.072595301
   ],
   "end_xy": [
    342871.5795286848,
    4713624.831080057
   ]
  },
  "max_100m": {
   "gradient_pct": 20.304558485516623,
   "start_distance_m": 51.0,
   "end_distance_m": 151.0,
   "midpoint_distance_m": 101.0,
   "start_elevation_m": 143.45868285445897,
   "end_elevation_m": 163.7632413399756,
   "start_xy": [
    342925.5268913159,
    4713638.202188687
   ],
   "end_xy": [
    342832.3315679654,
    4713605.855269205
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.9523904352840873,
   "start_distance_m": 597.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 599.5,
   "start_elevation_m": 191.57650757038473,
   "end_elevation_m": 191.62412709214894,
   "start_xy": [
    342410.08584994596,
    4713665.061211156
   ],
   "end_xy": [
    342405.12607992324,
    4713664.428217221
   ]
  },
  "min_10m": {
   "gradient_pct": 1.2257545219250687,
   "start_distance_m": 456.0,
   "end_distance_m": 466.0,
   "midpoint_distance_m": 461.0,
   "start_elevation_m": 188.0553368343206,
   "end_elevation_m": 188.1779122865131,
   "start_xy": [
    342549.9522276085,
    4713682.904876523
   ],
   "end_xy": [
    342540.0326186858,
    4713681.639428452
   ]
  },
  "min_20m": {
   "gradient_pct": 1.4419485804916121,
   "start_distance_m": 447.0,
   "end_distance_m": 467.0,
   "midpoint_distance_m": 457.0,
   "start_elevation_m": 187.91294816863393,
   "end_elevation_m": 188.20133788473225,
   "start_xy": [
    342558.87987563893,
    4713684.043779787
   ],
   "end_xy": [
    342539.0406577935,
    4713681.512883645
   ]
  },
  "min_25m": {
   "gradient_pct": 1.5392746827568544,
   "start_distance_m": 448.0,
   "end_distance_m": 473.0,
   "midpoint_distance_m": 460.5,
   "start_elevation_m": 187.9343413527704,
   "end_elevation_m": 188.3191600234596,
   "start_xy": [
    342557.88791474665,
    4713683.91723498
   ],
   "end_xy": [
    342533.0888924399,
    4713680.753614802
   ]
  },
  "min_50m": {
   "gradient_pct": 1.690134143429816,
   "start_distance_m": 596.0,
   "end_distance_m": 646.0,
   "midpoint_distance_m": 621.0,
   "start_elevation_m": 191.55789406594653,
   "end_elevation_m": 192.40296113766144,
   "start_xy": [
    342411.0778039505,
    4713665.187809942
   ],
   "end_xy": [
    342361.4801037233,
    4713658.857870593
   ]
  },
  "min_100m": {
   "gradient_pct": 1.943206588733375,
   "start_distance_m": 576.0,
   "end_distance_m": 676.0,
   "midpoint_distance_m": 626.0,
   "start_elevation_m": 191.13575133847206,
   "end_elevation_m": 193.07895792720544,
   "start_xy": [
    342430.91692053614,
    4713667.719499669
   ],
   "end_xy": [
    342331.72148358694,
    4713655.059906984
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.596280107981386,
   "start_distance_m": 68.0,
   "end_distance_m": 70.0,
   "midpoint_distance_m": 69.0,
   "start_elevation_m": 147.0761741166997,
   "end_elevation_m": 147.62809971885932,
   "start_xy": [
    342908.61865094694,
    4713636.811411513
   ],
   "end_xy": [
    342906.63183976,
    4713636.582105369
   ]
  },
  "max_3m": {
   "gradient_pct": 27.26996102764474,
   "start_distance_m": 68.0,
   "end_distance_m": 71.0,
   "midpoint_distance_m": 69.5,
   "start_elevation_m": 147.0761741166997,
   "end_elevation_m": 147.89427294752903,
   "start_xy": [
    342908.61865094694,
    4713636.811411513
   ],
   "end_xy": [
    342905.6615855036,
    4713636.351946883
   ]
  }
 },
 "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": 0.042,
   "obstruction_max_height_m": 16.83,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ny/USGS_1M_18_x34y472_NY_FingerLakes_2020_A20.tif"
  ],
  "calculated_at": "2026-09-06T10:58:37+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_FingerLakes_2020_A20 (collected 2020)",
  "elevation_tile_ids": [
   "x34y472"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_FingerLakes_1_2020",
   "ept_crs": "EPSG:3857",
   "station_coverage": 0.999,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Starkey",
  "county": "New York"
 }
}