{
 "ocl_version": "0.1.0",
 "name": "Rush Road",
 "slug": "rush-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.374951927127086,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1242.0,
   "end_distance_m": 1244.0,
   "start_elevation_m": 370.8064442791597,
   "end_elevation_m": 371.2739433177022,
   "min_gradient_pct": -11.916389569378794
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.264722311444075,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1241.0,
   "end_distance_m": 1244.0,
   "start_elevation_m": 370.5760016483589,
   "end_elevation_m": 371.2739433177022,
   "min_gradient_pct": -11.816108177716464
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.054502128889,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1241.0,
   "end_distance_m": 1246.0,
   "start_elevation_m": 370.5760016483589,
   "end_elevation_m": 371.72872675480335,
   "min_gradient_pct": -11.451826874738344
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.500170622737414,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1237.0,
   "end_distance_m": 1247.0,
   "start_elevation_m": 369.6994150792773,
   "end_elevation_m": 371.94943214155103,
   "min_gradient_pct": -11.258446040464491
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.957429382576095,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1227.0,
   "end_distance_m": 1247.0,
   "start_elevation_m": 367.5579462650358,
   "end_elevation_m": 371.94943214155103,
   "min_gradient_pct": -10.318134627403026
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.830601149640188,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1222.0,
   "end_distance_m": 1247.0,
   "start_elevation_m": 366.491781854141,
   "end_elevation_m": 371.94943214155103,
   "min_gradient_pct": -9.989252108668097
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.4076112616425,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1211.0,
   "end_distance_m": 1261.0,
   "start_elevation_m": 364.1221575426523,
   "end_elevation_m": 374.82596317347355,
   "min_gradient_pct": -8.923516909728505
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.62137605340206,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1209.0,
   "end_distance_m": 1309.0,
   "start_elevation_m": 363.74462087700977,
   "end_elevation_m": 384.3659969304118,
   "min_gradient_pct": -7.417575237631468
  }
 ],
 "shape": {
  "ascent_concentration": 0.491,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 226.0,
  "shape_class": "stepped"
 },
 "length_m": 1969.209513200705,
 "start_elevation_m": 331.95568609736563,
 "end_elevation_m": 435.2670809089505,
 "endpoint_gain_m": 103.31139481158488,
 "overall_gradient_pct": 5.246338397160445,
 "accumulated_ascent_m": 116.07176202616279,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.054502128889,
   "start_distance_m": 1241.0,
   "end_distance_m": 1246.0,
   "midpoint_distance_m": 1243.5,
   "start_elevation_m": 370.5760016483589,
   "end_elevation_m": 371.72872675480335,
   "start_xy": [
    548819.6630339373,
    4417753.183974386
   ],
   "end_xy": [
    548815.3450133181,
    4417755.704825564
   ]
  },
  "max_10m": {
   "gradient_pct": 22.500170622737414,
   "start_distance_m": 1237.0,
   "end_distance_m": 1247.0,
   "midpoint_distance_m": 1242.0,
   "start_elevation_m": 369.6994150792773,
   "end_elevation_m": 371.94943214155103,
   "start_xy": [
    548823.1178255078,
    4417751.167935121
   ],
   "end_xy": [
    548814.4813043753,
    4417756.208816448
   ]
  },
  "max_20m": {
   "gradient_pct": 21.957429382576095,
   "start_distance_m": 1227.0,
   "end_distance_m": 1247.0,
   "midpoint_distance_m": 1237.0,
   "start_elevation_m": 367.5579462650358,
   "end_elevation_m": 371.94943214155103,
   "start_xy": [
    548831.1652363584,
    4417745.260112527
   ],
   "end_xy": [
    548814.4813043753,
    4417756.208816448
   ]
  },
  "max_25m": {
   "gradient_pct": 21.830601149640188,
   "start_distance_m": 1222.0,
   "end_distance_m": 1247.0,
   "midpoint_distance_m": 1234.5,
   "start_elevation_m": 366.491781854141,
   "end_elevation_m": 371.94943214155103,
   "start_xy": [
    548835.0871317332,
    4417742.158704873
   ],
   "end_xy": [
    548814.4813043753,
    4417756.208816448
   ]
  },
  "max_50m": {
   "gradient_pct": 21.4076112616425,
   "start_distance_m": 1211.0,
   "end_distance_m": 1261.0,
   "midpoint_distance_m": 1236.0,
   "start_elevation_m": 364.1221575426523,
   "end_elevation_m": 374.82596317347355,
   "start_xy": [
    548843.7145171354,
    4417735.334616551
   ],
   "end_xy": [
    548802.3900353387,
    4417763.265812719
   ]
  },
  "max_100m": {
   "gradient_pct": 20.62137605340206,
   "start_distance_m": 1209.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1259.0,
   "start_elevation_m": 363.74462087700977,
   "end_elevation_m": 384.3659969304118,
   "start_xy": [
    548845.2832889003,
    4417734.09407091
   ],
   "end_xy": [
    548769.7325089836,
    4417793.570637182
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.451826874738344,
   "start_distance_m": 806.0,
   "end_distance_m": 811.0,
   "midpoint_distance_m": 808.5,
   "start_elevation_m": 350.9915743204551,
   "end_elevation_m": 350.41898297671815,
   "start_xy": [
    549043.7402264602,
    4417400.816672241
   ],
   "end_xy": [
    549042.2911555717,
    4417405.602086613
   ]
  },
  "min_10m": {
   "gradient_pct": -11.258446040464491,
   "start_distance_m": 801.0,
   "end_distance_m": 811.0,
   "midpoint_distance_m": 806.0,
   "start_elevation_m": 351.5448275807646,
   "end_elevation_m": 350.41898297671815,
   "start_xy": [
    549045.1900359396,
    4417396.031481399
   ],
   "end_xy": [
    549042.2911555717,
    4417405.602086613
   ]
  },
  "min_20m": {
   "gradient_pct": -10.318134627403026,
   "start_distance_m": 800.0,
   "end_distance_m": 820.0,
   "midpoint_distance_m": 810.0,
   "start_elevation_m": 351.64621557757414,
   "end_elevation_m": 349.58258865209353,
   "start_xy": [
    549045.480043335,
    4417395.074456994
   ],
   "end_xy": [
    549039.7460004697,
    4417414.231496679
   ]
  },
  "min_25m": {
   "gradient_pct": -9.989252108668097,
   "start_distance_m": 799.0,
   "end_distance_m": 824.0,
   "midpoint_distance_m": 811.5,
   "start_elevation_m": 351.7262581643147,
   "end_elevation_m": 349.22894513714766,
   "start_xy": [
    549045.7700507302,
    4417394.117432591
   ],
   "end_xy": [
    549039.183010125,
    4417418.191678329
   ]
  },
  "min_50m": {
   "gradient_pct": -8.923516909728505,
   "start_distance_m": 770.0,
   "end_distance_m": 820.0,
   "midpoint_distance_m": 795.0,
   "start_elevation_m": 354.0443471069578,
   "end_elevation_m": 349.58258865209353,
   "start_xy": [
    549055.84632167,
    4417366.934356313
   ],
   "end_xy": [
    549039.7460004697,
    4417414.231496679
   ]
  },
  "min_100m": {
   "gradient_pct": -7.417575237631468,
   "start_distance_m": 739.0,
   "end_distance_m": 839.0,
   "midpoint_distance_m": 789.0,
   "start_elevation_m": 355.7268438135959,
   "end_elevation_m": 348.30926857596444,
   "start_xy": [
    549065.0890016573,
    4417337.4076979365
   ],
   "end_xy": [
    549037.072015466,
    4417433.042390632
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.374951927127086,
   "start_distance_m": 1242.0,
   "end_distance_m": 1244.0,
   "midpoint_distance_m": 1243.0,
   "start_elevation_m": 370.8064442791597,
   "end_elevation_m": 371.2739433177022,
   "start_xy": [
    548818.7994389947,
    4417753.688160586
   ],
   "end_xy": [
    548817.0720714055,
    4417754.696228204
   ]
  },
  "max_3m": {
   "gradient_pct": 23.264722311444075,
   "start_distance_m": 1241.0,
   "end_distance_m": 1244.0,
   "midpoint_distance_m": 1242.5,
   "start_elevation_m": 370.5760016483589,
   "end_elevation_m": 371.2739433177022,
   "start_xy": [
    548819.6630339373,
    4417753.183974386
   ],
   "end_xy": [
    548817.0720714055,
    4417754.696228204
   ]
  }
 },
 "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": {
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "8f4becd2ed8ab26772f5cd961ca7d1d0c2823252",
   "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": "remeasure-valley-260921-us",
   "road_pbf": "batch-usa-pa-west-chunk000.pbf",
   "region_key": "usa-pa-west",
   "crs": "EPSG:26917",
   "elevation_provider_key": "usa3dep",
   "authority": "usa-inventory",
   "registry_pbf": "pennsylvania-2026-09-07.osm.pbf",
   "tile_index_snapshot": "sha256:e4b5d3b7a4a285f7"
  },
  "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/pa-west/USGS_1M_17_x54y442_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-22T00:19:41+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/valley-260921/us/batch-usa-pa-west-chunk000.pbf",
  "osm_snapshot": "",
  "run_id": "remeasure-valley-260921-us",
  "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, PA_WesternPA_2019_D20 (collected 2020)",
  "elevation_tile_ids": [
   "x54y442"
  ],
  "route_base_cut_m": 595.0,
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_WesternPA_2019_D20: HTTP Error 404: Not Found",
  "structure_own_ways": 2,
  "structure_own_ways_source": "map-matched to the road network: the entry carried no way list, so the ways the route runs along were found by geometry (ukclimb.batch.own_ways_by_geometry)",
  "prior_doc": {
   "slug": "rush-road",
   "calculated_at": "2026-09-07T23:52:13+00:00",
   "code_git_sha": null,
   "analysis_version": "0.1.0",
   "run_id": "pa-run4-260907",
   "path": "/root/uk-climbs/output/valley-260921/us/priors/rush-road/rush-road.json",
   "spans": 1,
   "sources": [
    "excluded_ranges_m"
   ]
  },
  "carriageway": {
   "stations": 85,
   "stations_resolved": 85,
   "width_median_m": 4.75,
   "width_p10_m": 3.75,
   "width_min_m": 2.0,
   "width_max_m": 10.75,
   "bounded_share": 0.435,
   "unbounded_share": 0.565,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.75,
   "window_m": [
    1222.0,
    1247.0
   ],
   "width_at_max25_m": 4.5,
   "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)"
   }
  },
  "remeasured": {
   "on": "2026-09-22",
   "why": "valley-crossing extent re-measure 2026-09-22: low-to-summit (595.0 m -> 2565.0 m)",
   "published_max25_pct": 21.83,
   "max25_pct": 21.83
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Richhill",
  "county": "Pennsylvania"
 }
}