{
 "ocl_version": "0.1.0",
 "name": "Impasse le Jardinet",
 "slug": "impasse-le-jardinet",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.585299785337213,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 514.0,
   "end_distance_m": 516.0,
   "start_elevation_m": 214.77403710589564,
   "end_elevation_m": 215.3057431016024,
   "min_gradient_pct": -3.2937217619675607
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.585033338279572,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 514.0,
   "end_distance_m": 517.0,
   "start_elevation_m": 214.77403710589564,
   "end_elevation_m": 215.54158810604403,
   "min_gradient_pct": -0.2601205448579928
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.523999343822425,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 514.0,
   "end_distance_m": 519.0,
   "start_elevation_m": 214.77403710589564,
   "end_elevation_m": 216.00023707308677,
   "min_gradient_pct": 0.48467998038915994
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.095868266590287,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 509.0,
   "end_distance_m": 519.0,
   "start_elevation_m": 213.69065024642774,
   "end_elevation_m": 216.00023707308677,
   "min_gradient_pct": 1.4531002395267478
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.92892176347229,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 503.0,
   "end_distance_m": 523.0,
   "start_elevation_m": 212.46433778331328,
   "end_elevation_m": 216.85012213600774,
   "min_gradient_pct": 3.0337449558916774
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.73897300380463,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 500.0,
   "end_distance_m": 525.0,
   "start_elevation_m": 211.8506156282076,
   "end_elevation_m": 217.28535887915876,
   "min_gradient_pct": 3.7305512635364266
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.268194994705937,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 476.0,
   "end_distance_m": 526.0,
   "start_elevation_m": 207.34284977337748,
   "end_elevation_m": 217.47694727073045,
   "min_gradient_pct": 6.024273124700358
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.608004934112756,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 435.0,
   "end_distance_m": 535.0,
   "start_elevation_m": 201.0477039278428,
   "end_elevation_m": 218.65570886195556,
   "min_gradient_pct": 6.788165773241957
  }
 ],
 "shape": {
  "ascent_concentration": 0.334,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 96.0,
  "shape_class": "sustained"
 },
 "length_m": 535.3627766866845,
 "start_elevation_m": 158.03485790672244,
 "end_elevation_m": 218.6829843326393,
 "endpoint_gain_m": 60.64812642591687,
 "overall_gradient_pct": 11.328416742244029,
 "accumulated_ascent_m": 61.12853666584445,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.523999343822425,
   "start_distance_m": 514.0,
   "end_distance_m": 519.0,
   "midpoint_distance_m": 516.5,
   "start_elevation_m": 214.77403710589564,
   "end_elevation_m": 216.00023707308677,
   "start_xy": [
    571744.9247589342,
    6354465.949829351
   ],
   "end_xy": [
    571744.7303315595,
    6354470.938245046
   ]
  },
  "max_10m": {
   "gradient_pct": 23.095868266590287,
   "start_distance_m": 509.0,
   "end_distance_m": 519.0,
   "midpoint_distance_m": 514.0,
   "start_elevation_m": 213.69065024642774,
   "end_elevation_m": 216.00023707308677,
   "start_xy": [
    571745.5025141439,
    6354460.983321632
   ],
   "end_xy": [
    571744.7303315595,
    6354470.938245046
   ]
  },
  "max_20m": {
   "gradient_pct": 21.92892176347229,
   "start_distance_m": 503.0,
   "end_distance_m": 523.0,
   "midpoint_distance_m": 513.0,
   "start_elevation_m": 212.46433778331328,
   "end_elevation_m": 216.85012213600774,
   "start_xy": [
    571744.2507209474,
    6354455.269143941
   ],
   "end_xy": [
    571744.7368508541,
    6354474.938239733
   ]
  },
  "max_25m": {
   "gradient_pct": 21.73897300380463,
   "start_distance_m": 500.0,
   "end_distance_m": 525.0,
   "midpoint_distance_m": 512.5,
   "start_elevation_m": 211.8506156282076,
   "end_elevation_m": 217.28535887915876,
   "start_xy": [
    571743.9821708105,
    6354452.28118798
   ],
   "end_xy": [
    571744.7401105015,
    6354476.938237077
   ]
  },
  "max_50m": {
   "gradient_pct": 20.268194994705937,
   "start_distance_m": 476.0,
   "end_distance_m": 526.0,
   "midpoint_distance_m": 501.0,
   "start_elevation_m": 207.34284977337748,
   "end_elevation_m": 217.47694727073045,
   "start_xy": [
    571742.4653929439,
    6354428.340363953
   ],
   "end_xy": [
    571744.7417403251,
    6354477.938235749
   ]
  },
  "max_100m": {
   "gradient_pct": 17.608004934112756,
   "start_distance_m": 435.0,
   "end_distance_m": 535.0,
   "midpoint_distance_m": 485.0,
   "start_elevation_m": 201.0477039278428,
   "end_elevation_m": 218.65570886195556,
   "start_xy": [
    571745.4538317744,
    6354388.12009256
   ],
   "end_xy": [
    571744.756408738,
    6354486.938223795
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.48467998038915994,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 158.03485790672244,
   "end_elevation_m": 158.0590919057419,
   "start_xy": [
    571896.194,
    6353988.764
   ],
   "end_xy": [
    571892.3652576919,
    6353991.97970091
   ]
  },
  "min_10m": {
   "gradient_pct": 1.4531002395267478,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 158.03485790672244,
   "end_elevation_m": 158.1801679306751,
   "start_xy": [
    571896.194,
    6353988.764
   ],
   "end_xy": [
    571888.536515384,
    6353995.195401819
   ]
  },
  "min_20m": {
   "gradient_pct": 3.0337449558916774,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 158.03485790672244,
   "end_elevation_m": 158.64160689790077,
   "start_xy": [
    571896.194,
    6353988.764
   ],
   "end_xy": [
    571884.756109467,
    6354004.274294829
   ]
  },
  "min_25m": {
   "gradient_pct": 3.7305512635364266,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 158.03485790672244,
   "end_elevation_m": 158.96749572260654,
   "start_xy": [
    571896.194,
    6353988.764
   ],
   "end_xy": [
    571883.1545845293,
    6354009.0108672045
   ]
  },
  "min_50m": {
   "gradient_pct": 6.024273124700358,
   "start_distance_m": 144.0,
   "end_distance_m": 194.0,
   "midpoint_distance_m": 169.0,
   "start_elevation_m": 173.55482312507908,
   "end_elevation_m": 176.56695968742926,
   "start_xy": [
    571851.1080776413,
    6354123.520049728
   ],
   "end_xy": [
    571839.0244881505,
    6354172.037952249
   ]
  },
  "min_100m": {
   "gradient_pct": 6.788165773241957,
   "start_distance_m": 130.0,
   "end_distance_m": 230.0,
   "midpoint_distance_m": 180.0,
   "start_elevation_m": 172.44604735099662,
   "end_elevation_m": 179.23421312423858,
   "start_xy": [
    571854.4914826987,
    6354109.935037022
   ],
   "end_xy": [
    571830.3243037171,
    6354206.970842064
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.585299785337213,
   "start_distance_m": 514.0,
   "end_distance_m": 516.0,
   "midpoint_distance_m": 515.0,
   "start_elevation_m": 214.77403710589564,
   "end_elevation_m": 215.3057431016024,
   "start_xy": [
    571744.9247589342,
    6354465.949829351
   ],
   "end_xy": [
    571744.7254420887,
    6354467.93824903
   ]
  },
  "max_3m": {
   "gradient_pct": 25.585033338279572,
   "start_distance_m": 514.0,
   "end_distance_m": 517.0,
   "midpoint_distance_m": 515.5,
   "start_elevation_m": 214.77403710589564,
   "end_elevation_m": 215.54158810604403,
   "start_xy": [
    571744.9247589342,
    6354465.949829351
   ],
   "end_xy": [
    571744.7270719123,
    6354468.938247702
   ]
  }
 },
 "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": 0.041,
   "obstruction_max_height_m": 13.64,
   "flagged_windows_m": [
    100
   ]
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1",
   "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-mc1",
   "road_pbf": "block-batch-fr-mc1.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:af4eae1f5df9e232"
  },
  "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_E571-N6353_0m5@21LHD2IO-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E571-N6354_0m5@21LHD2IO-2025-04-02.tif"
  ],
  "calculated_at": "2026-09-22T15:55:32+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc1",
  "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": [
   "E571-N6353",
   "E571-N6354"
  ],
  "elevation_blocks": [
   "21LHD2IO@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_0571_6354_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0571_6355_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD2IO"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0571_6354_MNT_O_0M50_LAMB93_IGN69": "2025-04-02",
   "LHD_FXX_0571_6355_MNT_O_0M50_LAMB93_IGN69": "2025-04-02"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 2,
  "carriageway": {
   "stations": 26,
   "stations_resolved": 26,
   "width_median_m": 4.0,
   "width_p10_m": 1.88,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.192,
   "unbounded_share": 0.808,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.25,
   "window_m": [
    500.0,
    525.0
   ],
   "width_at_max25_m": 3.75,
   "window_stations": 6,
   "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": 26,
    "stations_resolved": 26,
    "width_median_m": 8.12,
    "width_p10_m": 3.12,
    "width_min_m": 1.5,
    "width_max_m": 12.0,
    "bounded_share": 0.538,
    "unbounded_share": 0.462,
    "confidence_median": 0.951,
    "width_median_bounded_m": 6.25,
    "window_m": [
     500.0,
     525.0
    ],
    "width_at_max25_m": 3.12,
    "window_stations": 6,
    "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": "Saint-Paul-Flaugnac",
  "county": "Lot",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}