{
 "ocl_version": "0.1.0",
 "name": "Sunset Drive",
 "slug": "sunset-drive",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.139294760052167,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1560.0,
   "end_distance_m": 1562.0,
   "start_elevation_m": 275.3085317827068,
   "end_elevation_m": 275.8113176779078,
   "min_gradient_pct": -20.01086269622334
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.77908253531685,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1564.0,
   "end_distance_m": 1567.0,
   "start_elevation_m": 276.28564811608965,
   "end_elevation_m": 277.02902059214915,
   "min_gradient_pct": -19.88138639808786
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.601268917518837,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1560.0,
   "end_distance_m": 1565.0,
   "start_elevation_m": 275.3085317827068,
   "end_elevation_m": 276.5385952285827,
   "min_gradient_pct": -19.759015133640787
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.435121133233793,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1557.0,
   "end_distance_m": 1567.0,
   "start_elevation_m": 274.5855084788258,
   "end_elevation_m": 277.02902059214915,
   "min_gradient_pct": -19.563582219903708
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.81803475746551,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1554.0,
   "end_distance_m": 1574.0,
   "start_elevation_m": 273.89300230528727,
   "end_elevation_m": 278.65660925678037,
   "min_gradient_pct": -19.33813360440581
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.654732727064356,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1549.0,
   "end_distance_m": 1574.0,
   "start_elevation_m": 272.7429260750143,
   "end_elevation_m": 278.65660925678037,
   "min_gradient_pct": -19.31878804938458
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.1741137013463,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1532.0,
   "end_distance_m": 1582.0,
   "start_elevation_m": 268.8622347596707,
   "end_elevation_m": 280.44929161034383,
   "min_gradient_pct": -18.217575209422193
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 23.078933322768133,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1544.0,
   "end_distance_m": 1644.0,
   "start_elevation_m": 271.59431290686047,
   "end_elevation_m": 294.6732462296286,
   "min_gradient_pct": -12.164549445433268
  }
 ],
 "shape": {
  "ascent_concentration": 0.444,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 321.0,
  "shape_class": "sustained"
 },
 "length_m": 1763.5649051348134,
 "start_elevation_m": 194.82975715935945,
 "end_elevation_m": 314.1999821276753,
 "endpoint_gain_m": 119.37022496831585,
 "overall_gradient_pct": 6.768689069552036,
 "accumulated_ascent_m": 147.5640012399711,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.601268917518837,
   "start_distance_m": 1560.0,
   "end_distance_m": 1565.0,
   "midpoint_distance_m": 1562.5,
   "start_elevation_m": 275.3085317827068,
   "end_elevation_m": 276.5385952285827,
   "start_xy": [
    628888.7112066587,
    4600038.847171769
   ],
   "end_xy": [
    628890.7771282529,
    4600034.293935016
   ]
  },
  "max_10m": {
   "gradient_pct": 24.435121133233793,
   "start_distance_m": 1557.0,
   "end_distance_m": 1567.0,
   "midpoint_distance_m": 1562.0,
   "start_elevation_m": 274.5855084788258,
   "end_elevation_m": 277.02902059214915,
   "start_xy": [
    628887.4721340126,
    4600041.579331837
   ],
   "end_xy": [
    628891.603079899,
    4600032.472451069
   ]
  },
  "max_20m": {
   "gradient_pct": 23.81803475746551,
   "start_distance_m": 1554.0,
   "end_distance_m": 1574.0,
   "midpoint_distance_m": 1564.0,
   "start_elevation_m": 273.89300230528727,
   "end_elevation_m": 278.65660925678037,
   "start_xy": [
    628886.2330613666,
    4600044.311491904
   ],
   "end_xy": [
    628894.4941239513,
    4600026.097354005
   ]
  },
  "max_25m": {
   "gradient_pct": 23.654732727064356,
   "start_distance_m": 1549.0,
   "end_distance_m": 1574.0,
   "midpoint_distance_m": 1561.5,
   "start_elevation_m": 272.7429260750143,
   "end_elevation_m": 278.65660925678037,
   "start_xy": [
    628884.168037157,
    4600048.865135956
   ],
   "end_xy": [
    628894.4941239513,
    4600026.097354005
   ]
  },
  "max_50m": {
   "gradient_pct": 23.1741137013463,
   "start_distance_m": 1532.0,
   "end_distance_m": 1582.0,
   "midpoint_distance_m": 1557.0,
   "start_elevation_m": 268.8622347596707,
   "end_elevation_m": 280.44929161034383,
   "start_xy": [
    628876.8819877276,
    4600064.219844469
   ],
   "end_xy": [
    628897.7991182005,
    4600018.811957189
   ]
  },
  "max_100m": {
   "gradient_pct": 23.078933322768133,
   "start_distance_m": 1544.0,
   "end_distance_m": 1644.0,
   "midpoint_distance_m": 1594.0,
   "start_elevation_m": 271.59431290686047,
   "end_elevation_m": 294.6732462296286,
   "start_xy": [
    628882.1021156359,
    4600053.418372328
   ],
   "end_xy": [
    628929.1249269379,
    4599965.656500544
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -19.759015133640787,
   "start_distance_m": 356.0,
   "end_distance_m": 361.0,
   "midpoint_distance_m": 358.5,
   "start_elevation_m": 191.30110476808036,
   "end_elevation_m": 190.31315401139832,
   "start_xy": [
    628874.3155717982,
    4599559.143964197
   ],
   "end_xy": [
    628872.7095546102,
    4599563.879014905
   ]
  },
  "min_10m": {
   "gradient_pct": -19.563582219903708,
   "start_distance_m": 352.0,
   "end_distance_m": 362.0,
   "midpoint_distance_m": 357.0,
   "start_elevation_m": 192.0772745945164,
   "end_elevation_m": 190.12091637252604,
   "start_xy": [
    628875.5996681092,
    4599555.355680064
   ],
   "end_xy": [
    628872.3885305324,
    4599564.826085937
   ]
  },
  "min_20m": {
   "gradient_pct": -19.33813360440581,
   "start_distance_m": 354.0,
   "end_distance_m": 374.0,
   "midpoint_distance_m": 364.0,
   "start_elevation_m": 191.68500437116916,
   "end_elevation_m": 187.817377650288,
   "start_xy": [
    628874.9576199536,
    4599557.24982213
   ],
   "end_xy": [
    628867.2074640709,
    4599575.586652116
   ]
  },
  "min_25m": {
   "gradient_pct": -19.31878804938458,
   "start_distance_m": 349.0,
   "end_distance_m": 374.0,
   "midpoint_distance_m": 361.5,
   "start_elevation_m": 192.64707466263414,
   "end_elevation_m": 187.817377650288,
   "start_xy": [
    628876.5627403423,
    4599552.514466966
   ],
   "end_xy": [
    628867.2074640709,
    4599575.586652116
   ]
  },
  "min_50m": {
   "gradient_pct": -18.217575209422193,
   "start_distance_m": 346.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 371.0,
   "start_elevation_m": 193.1812876506261,
   "end_elevation_m": 184.072500045915,
   "start_xy": [
    628877.5255085262,
    4599549.673150859
   ],
   "end_xy": [
    628853.2087816851,
    4599592.37252057
   ]
  },
  "min_100m": {
   "gradient_pct": -12.164549445433268,
   "start_distance_m": 322.0,
   "end_distance_m": 422.0,
   "midpoint_distance_m": 372.0,
   "start_elevation_m": 194.45527626193643,
   "end_elevation_m": 182.29072681650317,
   "start_xy": [
    628883.3396697508,
    4599526.457852273
   ],
   "end_xy": [
    628838.2899139074,
    4599613.441300356
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.139294760052167,
   "start_distance_m": 1560.0,
   "end_distance_m": 1562.0,
   "midpoint_distance_m": 1561.0,
   "start_elevation_m": 275.3085317827068,
   "end_elevation_m": 275.8113176779078,
   "start_xy": [
    628888.7112066587,
    4600038.847171769
   ],
   "end_xy": [
    628889.5375660117,
    4600037.025872858
   ]
  },
  "max_3m": {
   "gradient_pct": 24.77908253531685,
   "start_distance_m": 1564.0,
   "end_distance_m": 1567.0,
   "midpoint_distance_m": 1565.5,
   "start_elevation_m": 276.28564811608965,
   "end_elevation_m": 277.02902059214915,
   "start_xy": [
    628890.3640072529,
    4600035.2046111375
   ],
   "end_xy": [
    628891.603079899,
    4600032.472451069
   ]
  }
 },
 "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": 0.571,
   "obstruction_max_height_m": 27.45,
   "flagged_windows_m": [
    100
   ]
  },
  "review": [],
  "extent": [
   "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/ct/USGS_1M_18_x62y460_CT_Statewide_C16.tif",
   "data/cache/usa/ct/USGS_1M_18_x62y461_CT_Statewide_C16.tif"
  ],
  "calculated_at": "2026-09-03T21:21:43+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/sunset-drive/sunset-drive.geojson",
  "run_id": "canopy-all-260903",
  "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, CT_Statewide_C16 (collected 2016)",
  "elevation_tile_ids": [
   "x62y460",
   "x62y461"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://usgs-lidar-public.s3-us-west-2.amazonaws.com/USGS_LPC_CT_Sandy_2014_LAS_2015",
   "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.html"
 },
 "area": {
  "place": "Sherman",
  "county": "Connecticut"
 }
}