{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (42.1641, -77.0368)",
 "slug": "discovered-lane-42-1641-77-0368",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 34.94903679004722,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 317.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 325.5837143388273,
   "end_elevation_m": 326.28269507462824,
   "min_gradient_pct": -26.435149420569815
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.89762254305977,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 316.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 325.38576639833644,
   "end_elevation_m": 326.28269507462824,
   "min_gradient_pct": -22.6278023240089
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.244548286167174,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2446.0,
   "end_distance_m": 2451.0,
   "start_elevation_m": 507.9514113330782,
   "end_elevation_m": 509.1636387473866,
   "min_gradient_pct": -15.576649806577052
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.810837943449314,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2441.0,
   "end_distance_m": 2451.0,
   "start_elevation_m": 506.78255495304165,
   "end_elevation_m": 509.1636387473866,
   "min_gradient_pct": -5.709064195574456
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.619909424806735,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2431.0,
   "end_distance_m": 2451.0,
   "start_elevation_m": 504.43965686242524,
   "end_elevation_m": 509.1636387473866,
   "min_gradient_pct": -3.3327429513553852
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.94459328551511,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2426.0,
   "end_distance_m": 2451.0,
   "start_elevation_m": 503.4274904260078,
   "end_elevation_m": 509.1636387473866,
   "min_gradient_pct": -2.762076727818112
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.946212691582446,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2408.0,
   "end_distance_m": 2458.0,
   "start_elevation_m": 500.070371841522,
   "end_elevation_m": 510.5434781873132,
   "min_gradient_pct": -1.9846475610402194
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.10456898790767,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2382.0,
   "end_distance_m": 2482.0,
   "start_elevation_m": 495.89962027953163,
   "end_elevation_m": 514.0041892674393,
   "min_gradient_pct": -1.3395831272842997
  }
 ],
 "shape": {
  "ascent_concentration": 0.385,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 140.0,
  "shape_class": "sustained"
 },
 "length_m": 3024.11327602027,
 "start_elevation_m": 310.0127073267253,
 "end_elevation_m": 529.3340499008144,
 "endpoint_gain_m": 219.3213425740891,
 "overall_gradient_pct": 7.252418231592031,
 "accumulated_ascent_m": 223.87267366958736,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.244548286167174,
   "start_distance_m": 2446.0,
   "end_distance_m": 2451.0,
   "midpoint_distance_m": 2448.5,
   "start_elevation_m": 507.9514113330782,
   "end_elevation_m": 509.1636387473866,
   "start_xy": [
    331954.77829149977,
    4670082.522463938
   ],
   "end_xy": [
    331949.8489574322,
    4670083.36011879
   ]
  },
  "max_10m": {
   "gradient_pct": 23.810837943449314,
   "start_distance_m": 2441.0,
   "end_distance_m": 2451.0,
   "midpoint_distance_m": 2446.0,
   "start_elevation_m": 506.78255495304165,
   "end_elevation_m": 509.1636387473866,
   "start_xy": [
    331959.7076255673,
    4670081.684809087
   ],
   "end_xy": [
    331949.8489574322,
    4670083.36011879
   ]
  },
  "max_20m": {
   "gradient_pct": 23.619909424806735,
   "start_distance_m": 2431.0,
   "end_distance_m": 2451.0,
   "midpoint_distance_m": 2441.0,
   "start_elevation_m": 504.43965686242524,
   "end_elevation_m": 509.1636387473866,
   "start_xy": [
    331969.56826881884,
    4670080.031555851
   ],
   "end_xy": [
    331949.8489574322,
    4670083.36011879
   ]
  },
  "max_25m": {
   "gradient_pct": 22.94459328551511,
   "start_distance_m": 2426.0,
   "end_distance_m": 2451.0,
   "midpoint_distance_m": 2438.5,
   "start_elevation_m": 503.4274904260078,
   "end_elevation_m": 509.1636387473866,
   "start_xy": [
    331974.5680038425,
    4670079.980080676
   ],
   "end_xy": [
    331949.8489574322,
    4670083.36011879
   ]
  },
  "max_50m": {
   "gradient_pct": 20.946212691582446,
   "start_distance_m": 2408.0,
   "end_distance_m": 2458.0,
   "midpoint_distance_m": 2433.0,
   "start_elevation_m": 500.070371841522,
   "end_elevation_m": 510.5434781873132,
   "start_xy": [
    331992.5670499275,
    4670079.794770049
   ],
   "end_xy": [
    331942.94788973767,
    4670084.532835582
   ]
  },
  "max_100m": {
   "gradient_pct": 18.10456898790767,
   "start_distance_m": 2382.0,
   "end_distance_m": 2482.0,
   "midpoint_distance_m": 2432.0,
   "start_elevation_m": 495.89962027953163,
   "end_elevation_m": 514.0041892674393,
   "start_xy": [
    332018.56567205035,
    4670079.527099143
   ],
   "end_xy": [
    331919.2870862135,
    4670088.55357887
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -15.576649806577052,
   "start_distance_m": 311.0,
   "end_distance_m": 316.0,
   "midpoint_distance_m": 313.5,
   "start_elevation_m": 326.1645988886653,
   "end_elevation_m": 325.38576639833644,
   "start_xy": [
    332561.1861457731,
    4668412.959792607
   ],
   "end_xy": [
    332562.62025222223,
    4668417.749713138
   ]
  },
  "min_10m": {
   "gradient_pct": -5.709064195574456,
   "start_distance_m": 2630.0,
   "end_distance_m": 2640.0,
   "midpoint_distance_m": 2635.0,
   "start_elevation_m": 523.3449058374241,
   "end_elevation_m": 522.7739994178667,
   "start_xy": [
    331777.19210459985,
    4670097.13577373
   ],
   "end_xy": [
    331769.11386583344,
    4670091.241534303
   ]
  },
  "min_20m": {
   "gradient_pct": -3.3327429513553852,
   "start_distance_m": 2628.0,
   "end_distance_m": 2648.0,
   "midpoint_distance_m": 2638.0,
   "start_elevation_m": 523.3631728339759,
   "end_elevation_m": 522.6966242437048,
   "start_xy": [
    331778.80775235314,
    4670098.314621616
   ],
   "end_xy": [
    331766.39482373453,
    4670084.111240442
   ]
  },
  "min_25m": {
   "gradient_pct": -2.762076727818112,
   "start_distance_m": 2628.0,
   "end_distance_m": 2653.0,
   "midpoint_distance_m": 2640.5,
   "start_elevation_m": 523.3631728339759,
   "end_elevation_m": 522.6726536520214,
   "start_xy": [
    331778.80775235314,
    4670098.314621616
   ],
   "end_xy": [
    331765.3751673687,
    4670079.216314406
   ]
  },
  "min_50m": {
   "gradient_pct": -1.9846475610402194,
   "start_distance_m": 2609.0,
   "end_distance_m": 2659.0,
   "midpoint_distance_m": 2634.0,
   "start_elevation_m": 523.6138536584959,
   "end_elevation_m": 522.6215298779758,
   "start_xy": [
    331794.1564060093,
    4670109.513676529
   ],
   "end_xy": [
    331764.1515797297,
    4670073.342403163
   ]
  },
  "min_100m": {
   "gradient_pct": -1.3395831272842997,
   "start_distance_m": 2609.0,
   "end_distance_m": 2709.0,
   "midpoint_distance_m": 2659.0,
   "start_elevation_m": 523.6138536584959,
   "end_elevation_m": 522.2742705312116,
   "start_xy": [
    331794.1564060093,
    4670109.513676529
   ],
   "end_xy": [
    331753.95501607156,
    4670024.393142805
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 34.94903679004722,
   "start_distance_m": 317.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 318.0,
   "start_elevation_m": 325.5837143388273,
   "end_elevation_m": 326.28269507462824,
   "start_xy": [
    332562.90707351203,
    4668418.707697244
   ],
   "end_xy": [
    332563.4807160917,
    4668420.623665457
   ]
  },
  "max_3m": {
   "gradient_pct": 29.89762254305977,
   "start_distance_m": 316.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 317.5,
   "start_elevation_m": 325.38576639833644,
   "end_elevation_m": 326.28269507462824,
   "start_xy": [
    332562.62025222223,
    4668417.749713138
   ],
   "end_xy": [
    332563.4807160917,
    4668420.623665457
   ]
  }
 },
 "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": 0.372,
   "obstruction_max_height_m": 161.92,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ny/USGS_1M_18_x33y467_NY_FEMAR2_Central_2018_D19.tif",
   "data/cache/usa/ny/USGS_1M_18_x33y468_NY_FEMAR2_Central_2018_D19.tif"
  ],
  "calculated_at": "2026-09-06T12:16:00+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_FEMAR2_Central_2018_D19 (collected 2018)",
  "elevation_tile_ids": [
   "x33y467",
   "x33y468"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_FEMAR2_Central_5_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": "Corning",
  "county": "New York"
 }
}