{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (48.2214, 15.1218)",
 "slug": "discovered-lane-48-2214-15-1218",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.734755127272592,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 170.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 242.68987525582614,
   "end_elevation_m": 243.2445703583716,
   "min_gradient_pct": -4.694328334252873
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.136770181892683,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 169.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 242.4304672529148,
   "end_elevation_m": 243.2445703583716,
   "min_gradient_pct": -4.481973082314046
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.957363032937565,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 167.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 241.8967022067247,
   "end_elevation_m": 243.2445703583716,
   "min_gradient_pct": -4.508846725567537
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.31181446353486,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 162.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 240.7133889120181,
   "end_elevation_m": 243.2445703583716,
   "min_gradient_pct": -4.196438612366933
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.784893665728703,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 154.0,
   "end_distance_m": 174.0,
   "start_elevation_m": 239.1115847998595,
   "end_elevation_m": 243.66856353300523,
   "min_gradient_pct": -3.5140427755209203
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.59546693965342,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 149.0,
   "end_distance_m": 174.0,
   "start_elevation_m": 238.26969679809187,
   "end_elevation_m": 243.66856353300523,
   "min_gradient_pct": -3.157103967486364
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.440119853304623,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2090.0,
   "end_distance_m": 2140.0,
   "start_elevation_m": 468.7157780651249,
   "end_elevation_m": 478.4358379917772,
   "min_gradient_pct": -1.80013914940605
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.72739274825699,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1960.0,
   "end_distance_m": 2060.0,
   "start_elevation_m": 446.7833137480384,
   "end_elevation_m": 464.51070649629537,
   "min_gradient_pct": -0.5457827378962747
  }
 ],
 "shape": {
  "ascent_concentration": 0.334,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 572.0,
  "shape_class": "sustained"
 },
 "length_m": 2580.631616460735,
 "start_elevation_m": 223.2837095788487,
 "end_elevation_m": 499.27523400726113,
 "endpoint_gain_m": 275.99152442841245,
 "overall_gradient_pct": 10.694727704178375,
 "accumulated_ascent_m": 277.7316611395165,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.957363032937565,
   "start_distance_m": 167.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 169.5,
   "start_elevation_m": 241.8967022067247,
   "end_elevation_m": 243.2445703583716,
   "start_xy": [
    4702331.560725714,
    2802243.8448006706
   ],
   "end_xy": [
    4702326.704809821,
    2802242.92920391
   ]
  },
  "max_10m": {
   "gradient_pct": 25.31181446353486,
   "start_distance_m": 162.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 167.0,
   "start_elevation_m": 240.7133889120181,
   "end_elevation_m": 243.2445703583716,
   "start_xy": [
    4702336.533404296,
    2802244.2939199978
   ],
   "end_xy": [
    4702326.704809821,
    2802242.92920391
   ]
  },
  "max_20m": {
   "gradient_pct": 22.784893665728703,
   "start_distance_m": 154.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 164.0,
   "start_elevation_m": 239.1115847998595,
   "end_elevation_m": 243.66856353300523,
   "start_xy": [
    4702344.5243440345,
    2802244.2298548357
   ],
   "end_xy": [
    4702325.049149503,
    2802241.807246286
   ]
  },
  "max_25m": {
   "gradient_pct": 21.59546693965342,
   "start_distance_m": 149.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 161.5,
   "start_elevation_m": 238.26969679809187,
   "end_elevation_m": 243.66856353300523,
   "start_xy": [
    4702349.503635116,
    2802243.7752557434
   ],
   "end_xy": [
    4702325.049149503,
    2802241.807246286
   ]
  },
  "max_50m": {
   "gradient_pct": 19.440119853304623,
   "start_distance_m": 2090.0,
   "end_distance_m": 2140.0,
   "midpoint_distance_m": 2115.0,
   "start_elevation_m": 468.7157780651249,
   "end_elevation_m": 478.4358379917772,
   "start_xy": [
    4701395.185929087,
    2802938.4523819797
   ],
   "end_xy": [
    4701408.685300599,
    2802986.286554137
   ]
  },
  "max_100m": {
   "gradient_pct": 17.72739274825699,
   "start_distance_m": 1960.0,
   "end_distance_m": 2060.0,
   "midpoint_distance_m": 2010.0,
   "start_elevation_m": 446.7833137480384,
   "end_elevation_m": 464.51070649629537,
   "start_xy": [
    4701321.329122441,
    2802831.9515299695
   ],
   "end_xy": [
    4701379.9869533,
    2802912.632432415
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.508846725567537,
   "start_distance_m": 1804.0,
   "end_distance_m": 1809.0,
   "midpoint_distance_m": 1806.5,
   "start_elevation_m": 439.28597484350047,
   "end_elevation_m": 439.0605325072221,
   "start_xy": [
    4701191.2351876665,
    2802752.913314938
   ],
   "end_xy": [
    4701196.22662328,
    2802753.2058393215
   ]
  },
  "min_10m": {
   "gradient_pct": -4.196438612366933,
   "start_distance_m": 1802.0,
   "end_distance_m": 1812.0,
   "midpoint_distance_m": 1807.0,
   "start_elevation_m": 439.36063786736247,
   "end_elevation_m": 438.9409940061258,
   "start_xy": [
    4701189.238613421,
    2802752.7963051847
   ],
   "end_xy": [
    4701199.201310475,
    2802753.5528811314
   ]
  },
  "min_20m": {
   "gradient_pct": -3.5140427755209203,
   "start_distance_m": 1800.0,
   "end_distance_m": 1820.0,
   "midpoint_distance_m": 1810.0,
   "start_elevation_m": 439.41583039079546,
   "end_elevation_m": 438.7130218356913,
   "start_xy": [
    4701187.24756597,
    2802752.9029427483
   ],
   "end_xy": [
    4701207.071426645,
    2802754.975804592
   ]
  },
  "min_25m": {
   "gradient_pct": -3.157103967486364,
   "start_distance_m": 1796.0,
   "end_distance_m": 1821.0,
   "midpoint_distance_m": 1808.5,
   "start_elevation_m": 439.48599846267945,
   "end_elevation_m": 438.69672247080786,
   "start_xy": [
    4701183.270850804,
    2802753.333914305
   ],
   "end_xy": [
    4701208.009384556,
    2802755.322553719
   ]
  },
  "min_50m": {
   "gradient_pct": -1.80013914940605,
   "start_distance_m": 1776.0,
   "end_distance_m": 1826.0,
   "midpoint_distance_m": 1801.0,
   "start_elevation_m": 439.5691566040557,
   "end_elevation_m": 438.6690870293527,
   "start_xy": [
    4701163.888878109,
    2802756.645013573
   ],
   "end_xy": [
    4701212.699174111,
    2802757.056299355
   ]
  },
  "min_100m": {
   "gradient_pct": -0.5457827378962747,
   "start_distance_m": 2278.0,
   "end_distance_m": 2378.0,
   "midpoint_distance_m": 2328.0,
   "start_elevation_m": 491.01470803025165,
   "end_elevation_m": 490.4689252923554,
   "start_xy": [
    4701375.604572392,
    2803118.5112698064
   ],
   "end_xy": [
    4701345.321239912,
    2803212.040176919
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.734755127272592,
   "start_distance_m": 170.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 171.0,
   "start_elevation_m": 242.68987525582614,
   "end_elevation_m": 243.2445703583716,
   "start_xy": [
    4702328.585902462,
    2802243.4569519674
   ],
   "end_xy": [
    4702326.704809821,
    2802242.92920391
   ]
  },
  "max_3m": {
   "gradient_pct": 27.136770181892683,
   "start_distance_m": 169.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 170.5,
   "start_elevation_m": 242.4304672529148,
   "end_elevation_m": 243.2445703583716,
   "start_xy": [
    4702329.577510213,
    2802243.5862348685
   ],
   "end_xy": [
    4702326.704809821,
    2802242.92920391
   ]
  }
 },
 "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": 0.298,
   "obstruction_max_height_m": 23.21,
   "flagged_windows_m": [
    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:3035",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/at/bev-als_dtm_E4701-N2802.tif",
   "data/cache/at/bev-als_dtm_E4701-N2803.tif",
   "data/cache/at/bev-als_dtm_E4702-N2802.tif"
  ],
  "calculated_at": "2026-09-11T07:23:16+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/austria-2026-09-11-batch.osm.pbf",
  "osm_snapshot": "",
  "run_id": "at-run1-260911",
  "elevation_provider": "BEV ALS DTM 1 m",
  "elevation_licence": "Creative Commons Attribution 4.0 (CC BY 4.0) \u2014 \u00a9 BEV / L\u00e4nder, data.gv.at",
  "elevation_dataset": "ALS DTM H\u00f6henraster 1 m (Bundesamt f\u00fcr Eich- und Vermessungswesen with the L\u00e4nder), EPSG:3035",
  "elevation_tile_ids": [
   "E4701-N2802",
   "E4701-N2803",
   "E4702-N2802"
  ],
  "elevation_blocks": [
   "N2800000E4700000@2022-09-15"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Marbach an der Donau",
  "county": "Nieder\u00f6sterreich",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}