{
 "ocl_version": "0.1.0",
 "name": "Rue du Trait de Fortpuy",
 "slug": "rue-du-trait-de-fortpuy",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.637642872364495,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 112.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 85.36692808786823,
   "end_elevation_m": 85.83968094531552,
   "min_gradient_pct": 2.992298606555721
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.665306801122636,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 112.0,
   "end_distance_m": 115.0,
   "start_elevation_m": 85.36692808786823,
   "end_elevation_m": 86.04688729190191,
   "min_gradient_pct": 3.7986777990222245
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.04173221816808,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 126.0,
   "end_distance_m": 131.0,
   "start_elevation_m": 88.20340871110966,
   "end_elevation_m": 89.25549532201806,
   "min_gradient_pct": 4.118756455686707
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.863923839708747,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 121.0,
   "end_distance_m": 131.0,
   "start_elevation_m": 87.16910293804719,
   "end_elevation_m": 89.25549532201806,
   "min_gradient_pct": 4.977666001545771
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.269290117596555,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 112.0,
   "end_distance_m": 132.0,
   "start_elevation_m": 85.36692808786823,
   "end_elevation_m": 89.42078611138754,
   "min_gradient_pct": 5.7615901569540995
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.0031382081595,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 108.0,
   "end_distance_m": 133.0,
   "start_elevation_m": 84.63642166334586,
   "end_elevation_m": 89.63720621538573,
   "min_gradient_pct": 5.878805448730418
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.099314228087366,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 97.0,
   "end_distance_m": 147.0,
   "start_elevation_m": 82.72429044198388,
   "end_elevation_m": 92.27394755602757,
   "min_gradient_pct": 7.212858234527744
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.66978774172361,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 47.0,
   "end_distance_m": 147.0,
   "start_elevation_m": 74.60415981430396,
   "end_elevation_m": 92.27394755602757,
   "min_gradient_pct": 12.351916554905358
  }
 ],
 "shape": {
  "ascent_concentration": 0.325,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 174.0,
  "shape_class": "sustained"
 },
 "length_m": 216.99999999998334,
 "start_elevation_m": 67.24827669360202,
 "end_elevation_m": 98.75788050382508,
 "endpoint_gain_m": 31.509603810223055,
 "overall_gradient_pct": 14.520554751255979,
 "accumulated_ascent_m": 31.509603810223055,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.04173221816808,
   "start_distance_m": 126.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 128.5,
   "start_elevation_m": 88.20340871110966,
   "end_elevation_m": 89.25549532201806,
   "start_xy": [
    503638.98792192916,
    6625207.864816699
   ],
   "end_xy": [
    503641.7703876048,
    6625203.71056977
   ]
  },
  "max_10m": {
   "gradient_pct": 20.863923839708747,
   "start_distance_m": 121.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 126.0,
   "start_elevation_m": 87.16910293804719,
   "end_elevation_m": 89.25549532201806,
   "start_xy": [
    503636.2095271213,
    6625212.021801459
   ],
   "end_xy": [
    503641.7703876048,
    6625203.71056977
   ]
  },
  "max_20m": {
   "gradient_pct": 20.269290117596555,
   "start_distance_m": 112.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 122.0,
   "start_elevation_m": 85.36692808786823,
   "end_elevation_m": 89.42078611138754,
   "start_xy": [
    503632.4432029867,
    6625220.101151586
   ],
   "end_xy": [
    503642.3308458091,
    6625202.88238706
   ]
  },
  "max_25m": {
   "gradient_pct": 20.0031382081595,
   "start_distance_m": 108.0,
   "end_distance_m": 133.0,
   "midpoint_distance_m": 120.5,
   "start_elevation_m": 84.63642166334586,
   "end_elevation_m": 89.63720621538573,
   "start_xy": [
    503631.21830434207,
    6625223.908988676
   ],
   "end_xy": [
    503642.8913040134,
    6625202.054204349
   ]
  },
  "max_50m": {
   "gradient_pct": 19.099314228087366,
   "start_distance_m": 97.0,
   "end_distance_m": 147.0,
   "midpoint_distance_m": 122.0,
   "start_elevation_m": 82.72429044198388,
   "end_elevation_m": 92.27394755602757,
   "start_xy": [
    503629.47139650735,
    6625234.709956975
   ],
   "end_xy": [
    503650.73771887354,
    6625190.459646408
   ]
  },
  "max_100m": {
   "gradient_pct": 17.66978774172361,
   "start_distance_m": 47.0,
   "end_distance_m": 147.0,
   "midpoint_distance_m": 97.0,
   "start_elevation_m": 74.60415981430396,
   "end_elevation_m": 92.27394755602757,
   "start_xy": [
    503624.4052572381,
    6625284.450821136
   ],
   "end_xy": [
    503650.73771887354,
    6625190.459646408
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 4.118756455686707,
   "start_distance_m": 211.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 213.5,
   "start_elevation_m": 98.49931086497328,
   "end_elevation_m": 98.70524868775762,
   "start_xy": [
    503687.4606015477,
    6625138.048302095
   ],
   "end_xy": [
    503690.35185269226,
    6625133.969004751
   ]
  },
  "min_10m": {
   "gradient_pct": 4.977666001545771,
   "start_distance_m": 207.0,
   "end_distance_m": 217.0,
   "midpoint_distance_m": 212.0,
   "start_elevation_m": 98.2601139036705,
   "end_elevation_m": 98.75788050382508,
   "start_xy": [
    503685.14760063204,
    6625141.31173997
   ],
   "end_xy": [
    503690.93010292115,
    6625133.1531452825
   ]
  },
  "min_20m": {
   "gradient_pct": 5.7615901569540995,
   "start_distance_m": 197.0,
   "end_distance_m": 217.0,
   "midpoint_distance_m": 207.0,
   "start_elevation_m": 97.60556247243426,
   "end_elevation_m": 98.75788050382508,
   "start_xy": [
    503679.3638160444,
    6625149.469423674
   ],
   "end_xy": [
    503690.93010292115,
    6625133.1531452825
   ]
  },
  "min_25m": {
   "gradient_pct": 5.878805448730418,
   "start_distance_m": 192.0,
   "end_distance_m": 217.0,
   "midpoint_distance_m": 204.5,
   "start_elevation_m": 97.28817914164247,
   "end_elevation_m": 98.75788050382508,
   "start_xy": [
    503676.46352017665,
    6625153.542295373
   ],
   "end_xy": [
    503690.93010292115,
    6625133.1531452825
   ]
  },
  "min_50m": {
   "gradient_pct": 7.212858234527744,
   "start_distance_m": 167.0,
   "end_distance_m": 217.0,
   "midpoint_distance_m": 192.0,
   "start_elevation_m": 95.1514513865612,
   "end_elevation_m": 98.75788050382508,
   "start_xy": [
    503661.9545614411,
    6625173.901325478
   ],
   "end_xy": [
    503690.93010292115,
    6625133.1531452825
   ]
  },
  "min_100m": {
   "gradient_pct": 12.351916554905358,
   "start_distance_m": 117.0,
   "end_distance_m": 217.0,
   "midpoint_distance_m": 167.0,
   "start_elevation_m": 86.40596394891972,
   "end_elevation_m": 98.75788050382508,
   "start_xy": [
    503633.986811275,
    6625215.347389267
   ],
   "end_xy": [
    503690.93010292115,
    6625133.1531452825
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.637642872364495,
   "start_distance_m": 112.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 113.0,
   "start_elevation_m": 85.36692808786823,
   "end_elevation_m": 85.83968094531552,
   "start_xy": [
    503632.4432029867,
    6625220.101151586
   ],
   "end_xy": [
    503633.055652309,
    6625218.19723304
   ]
  },
  "max_3m": {
   "gradient_pct": 22.665306801122636,
   "start_distance_m": 112.0,
   "end_distance_m": 115.0,
   "midpoint_distance_m": 113.5,
   "start_elevation_m": 85.36692808786823,
   "end_elevation_m": 86.04688729190191,
   "start_xy": [
    503632.4432029867,
    6625220.101151586
   ],
   "end_xy": [
    503633.36187697016,
    6625217.245273767
   ]
  }
 },
 "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": 0.05,
   "obstruction_max_height_m": 9.76,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "16bcc1553fe58b280e0c4a66a3ab0980530490a6",
   "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": "fr-so4",
   "road_pbf": "block-batch-fr-so4.osm.pbf",
   "region_key": "france",
   "crs": "EPSG:2154",
   "elevation_provider_key": "ign-lidarhd",
   "tile_index": "wms-grid",
   "authority": "bdtopo",
   "registry_pbf": "france-vosges-2026-09-16.osm.pbf",
   "tile_index_snapshot": "sha256:18f786cf9fa98070"
  },
  "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:2154",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/fr/ign-lidarhd_dtm_E503-N6625_0m5@23LHD4HJ-2024-12-02.tif"
  ],
  "calculated_at": "2026-09-27T04:51:59+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-so4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-so4",
  "elevation_provider": "IGN LiDAR HD MNT 0.5 m",
  "elevation_licence": "Licence Ouverte / Open Licence 2.0 (Etalab) \u2014 \u00a9 IGN, LiDAR HD (MNT/MNS), data.geopf.fr; reproduction autoris\u00e9e avec mention de la source et de la date",
  "elevation_dataset": "LiDAR HD \u2014 MNT (sol) et MNS (surface), 0,50 m (Institut national de l'information g\u00e9ographique et foresti\u00e8re), RGF93 / Lambert-93 EPSG:2154, altitudes IGN69",
  "elevation_vertical_datum": "IGN69",
  "elevation_tile_ids": [
   "E503-N6625"
  ],
  "elevation_blocks": [
   "23LHD4HJ@2024-12-02"
  ],
  "ign_dalles": [
   "LHD_FXX_0503_6626_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "23LHD4HJ"
  ],
  "ign_editions": [
   "2024-12-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0503_6626_MNT_O_0M50_LAMB93_IGN69": "2024-12-02"
  },
  "route_cut_m": 217.0,
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": "none \u2014 the route carried no way list and no mapped way runs along it; own decks unmasked",
  "carriageway": {
   "stations": 15,
   "stations_resolved": 15,
   "width_median_m": 3.5,
   "width_p10_m": 1.25,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.467,
   "unbounded_share": 0.533,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.5,
   "window_m": [
    108.0,
    133.0
   ],
   "width_at_max25_m": 3.0,
   "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": {
    "stations": 15,
    "stations_resolved": 15,
    "width_median_m": 3.0,
    "width_p10_m": 1.6,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.867,
    "unbounded_share": 0.133,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.0,
    "window_m": [
     108.0,
     133.0
    ],
    "width_at_max25_m": 3.0,
    "window_stations": 7,
    "status": "ok",
    "source": "dsm",
    "station_m": 25.0,
    "window_station_m": 5.0,
    "halfwidth_m": 6.0,
    "step_m": 0.25,
    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Dissay",
  "county": "Vienne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}