{
 "ocl_version": "0.1.0",
 "name": "Chemin du Foss\u00e9",
 "slug": "chemin-du-fosse-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.102006858266805,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 1273.0,
   "end_distance_m": 1275.0,
   "start_elevation_m": 487.00868855899415,
   "end_elevation_m": 487.5907286961595,
   "min_gradient_pct": -8.882904051836249,
   "suppressed_max_gradient_pct": 147.2914517634564,
   "suppressed_location_m": [
    447.0,
    449.0
   ],
   "suppressed_min_gradient_pct": -127.56287443622227,
   "suppressed_min_location_m": [
    444.0,
    446.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.167078222522377,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 1235.0,
   "end_distance_m": 1238.0,
   "start_elevation_m": 482.7002927147265,
   "end_elevation_m": 483.4853050614022,
   "min_gradient_pct": -8.141064896428437,
   "suppressed_max_gradient_pct": 105.88213780321212,
   "suppressed_location_m": [
    447.0,
    450.0
   ],
   "suppressed_min_gradient_pct": -96.62651549434713,
   "suppressed_min_location_m": [
    443.0,
    446.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.452016460259983,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 1993.0,
   "end_distance_m": 1998.0,
   "start_elevation_m": 546.4127629512823,
   "end_elevation_m": 547.5853637742953,
   "min_gradient_pct": -7.940993031739936,
   "suppressed_max_gradient_pct": 65.30096054664796,
   "suppressed_location_m": [
    447.0,
    452.0
   ],
   "suppressed_min_gradient_pct": -56.70912949293552,
   "suppressed_min_location_m": [
    442.0,
    447.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.747581776709467,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "structure_excluded_min"
   ],
   "start_distance_m": 1988.0,
   "end_distance_m": 1998.0,
   "start_elevation_m": 545.3106055966243,
   "end_elevation_m": 547.5853637742953,
   "min_gradient_pct": -7.683555374572961,
   "suppressed_max_gradient_pct": 34.744205937624315,
   "suppressed_location_m": [
    447.0,
    457.0
   ],
   "suppressed_min_gradient_pct": -26.112266470277632,
   "suppressed_min_location_m": [
    437.0,
    447.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.45710524308265,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min"
   ],
   "start_distance_m": 1966.0,
   "end_distance_m": 1986.0,
   "start_elevation_m": 540.424477434758,
   "end_elevation_m": 544.9158984833746,
   "min_gradient_pct": -7.297703333851189,
   "suppressed_min_gradient_pct": -10.51226097352469,
   "suppressed_min_location_m": [
    427.0,
    447.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.41274443583643,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min"
   ],
   "start_distance_m": 1973.0,
   "end_distance_m": 1998.0,
   "start_elevation_m": 541.9821776653362,
   "end_elevation_m": 547.5853637742953,
   "min_gradient_pct": -7.02392727229676,
   "suppressed_min_gradient_pct": -7.406907930696661,
   "suppressed_min_location_m": [
    422.0,
    447.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.112799354868912,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1948.0,
   "end_distance_m": 1998.0,
   "start_elevation_m": 537.0289640968608,
   "end_elevation_m": 547.5853637742953,
   "min_gradient_pct": -6.37886486991863
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.226825786106815,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1898.0,
   "end_distance_m": 1998.0,
   "start_elevation_m": 530.3585379881885,
   "end_elevation_m": 547.5853637742953,
   "min_gradient_pct": -2.7275090137955544
  }
 ],
 "shape": {
  "ascent_concentration": 0.335,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 74.0,
  "shape_class": "sustained"
 },
 "length_m": 1998.3171204705377,
 "start_elevation_m": 424.3588233024875,
 "end_elevation_m": 547.6579791709046,
 "endpoint_gain_m": 123.29915586841707,
 "overall_gradient_pct": 6.170149602650865,
 "accumulated_ascent_m": 130.52787976582198,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.452016460259983,
   "start_distance_m": 1993.0,
   "end_distance_m": 1998.0,
   "midpoint_distance_m": 1995.5,
   "start_elevation_m": 546.4127629512823,
   "end_elevation_m": 547.5853637742953,
   "start_xy": [
    1010165.9355802498,
    6792502.569025691
   ],
   "end_xy": [
    1010170.8709769361,
    6792503.370187066
   ]
  },
  "max_10m": {
   "gradient_pct": 22.747581776709467,
   "start_distance_m": 1988.0,
   "end_distance_m": 1998.0,
   "midpoint_distance_m": 1993.0,
   "start_elevation_m": 545.3106055966243,
   "end_elevation_m": 547.5853637742953,
   "start_xy": [
    1010161.0001835634,
    6792501.767864316
   ],
   "end_xy": [
    1010170.8709769361,
    6792503.370187066
   ]
  },
  "max_20m": {
   "gradient_pct": 22.45710524308265,
   "start_distance_m": 1966.0,
   "end_distance_m": 1986.0,
   "midpoint_distance_m": 1976.0,
   "start_elevation_m": 540.424477434758,
   "end_elevation_m": 544.9158984833746,
   "start_xy": [
    1010139.6589001557,
    6792496.599527373
   ],
   "end_xy": [
    1010159.026024889,
    6792501.447399766
   ]
  },
  "max_25m": {
   "gradient_pct": 22.41274443583643,
   "start_distance_m": 1973.0,
   "end_distance_m": 1998.0,
   "midpoint_distance_m": 1985.5,
   "start_elevation_m": 541.9821776653362,
   "end_elevation_m": 547.5853637742953,
   "start_xy": [
    1010146.3722134244,
    6792498.5823094975
   ],
   "end_xy": [
    1010170.8709769361,
    6792503.370187066
   ]
  },
  "max_50m": {
   "gradient_pct": 21.112799354868912,
   "start_distance_m": 1948.0,
   "end_distance_m": 1998.0,
   "midpoint_distance_m": 1973.0,
   "start_elevation_m": 537.0289640968608,
   "end_elevation_m": 547.5853637742953,
   "start_xy": [
    1010122.3877122625,
    6792491.53110617
   ],
   "end_xy": [
    1010170.8709769361,
    6792503.370187066
   ]
  },
  "max_100m": {
   "gradient_pct": 17.226825786106815,
   "start_distance_m": 1898.0,
   "end_distance_m": 1998.0,
   "midpoint_distance_m": 1948.0,
   "start_elevation_m": 530.3585379881885,
   "end_elevation_m": 547.5853637742953,
   "start_xy": [
    1010073.6083163104,
    6792482.72363765
   ],
   "end_xy": [
    1010170.8709769361,
    6792503.370187066
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.940993031739936,
   "start_distance_m": 10.0,
   "end_distance_m": 15.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 423.73671226493104,
   "end_elevation_m": 423.33966261334405,
   "start_xy": [
    1010102.3152370704,
    6791808.4913128
   ],
   "end_xy": [
    1010099.1927385998,
    6791812.396438061
   ]
  },
  "min_10m": {
   "gradient_pct": -7.683555374572961,
   "start_distance_m": 6.0,
   "end_distance_m": 16.0,
   "midpoint_distance_m": 11.0,
   "start_elevation_m": 424.05042470131235,
   "end_elevation_m": 423.28206916385506,
   "start_xy": [
    1010104.5311111351,
    6791805.197958088
   ],
   "end_xy": [
    1010098.5682389057,
    6791813.177463113
   ]
  },
  "min_20m": {
   "gradient_pct": -7.297703333851189,
   "start_distance_m": 6.0,
   "end_distance_m": 26.0,
   "midpoint_distance_m": 16.0,
   "start_elevation_m": 424.05042470131235,
   "end_elevation_m": 422.5908840345421,
   "start_xy": [
    1010104.5311111351,
    6791805.197958088
   ],
   "end_xy": [
    1010090.4153506211,
    6791818.713012174
   ]
  },
  "min_25m": {
   "gradient_pct": -7.02392727229676,
   "start_distance_m": 6.0,
   "end_distance_m": 31.0,
   "midpoint_distance_m": 18.5,
   "start_elevation_m": 424.05042470131235,
   "end_elevation_m": 422.29444288323816,
   "start_xy": [
    1010104.5311111351,
    6791805.197958088
   ],
   "end_xy": [
    1010086.0263355148,
    6791821.108121023
   ]
  },
  "min_50m": {
   "gradient_pct": -6.37886486991863,
   "start_distance_m": 6.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 31.0,
   "start_elevation_m": 424.05042470131235,
   "end_elevation_m": 420.86099226635304,
   "start_xy": [
    1010104.5311111351,
    6791805.197958088
   ],
   "end_xy": [
    1010066.1344463265,
    6791835.934017543
   ]
  },
  "min_100m": {
   "gradient_pct": -2.7275090137955544,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 424.3588233024875,
   "end_elevation_m": 421.63131428869195,
   "start_xy": [
    1010106.913,
    6791799.691
   ],
   "end_xy": [
    1010039.6277015969,
    6791871.049020644
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.102006858266805,
   "start_distance_m": 1273.0,
   "end_distance_m": 1275.0,
   "midpoint_distance_m": 1274.0,
   "start_elevation_m": 487.00868855899415,
   "end_elevation_m": 487.5907286961595,
   "start_xy": [
    1009739.6650888105,
    6792774.816174009
   ],
   "end_xy": [
    1009741.6488913933,
    6792775.070196276
   ]
  },
  "max_3m": {
   "gradient_pct": 26.167078222522377,
   "start_distance_m": 1235.0,
   "end_distance_m": 1238.0,
   "midpoint_distance_m": 1236.5,
   "start_elevation_m": 482.7002927147265,
   "end_elevation_m": 483.4853050614022,
   "start_xy": [
    1009701.9536875319,
    6792770.162568205
   ],
   "end_xy": [
    1009704.9406142283,
    6792770.44233402
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.005,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": [],
   "minima_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.114,
   "obstruction_max_height_m": 19.33,
   "flagged_windows_m": [
    2
   ]
  },
  "excluded_ranges_m": [
   [
    442.0,
    451.0
   ]
  ],
  "review": [],
  "extent": [
   "descends_at_start",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "686aca469eafb5c6deda431acc2396d659a613ab",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:0048c2bbb24ab95e",
   "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-vosges",
   "road_pbf": "block-batch-fr-vosges.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": "sha256:3827be8f439ab5f4"
  },
  "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_E1009-N6791_0m5@22LHDVosgesRF-2024-12-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1009-N6792_0m5@22LHDVosgesRF-2024-12-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1010-N6791_0m5@22LHDVosgesRF-2024-12-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1010-N6792_0m5@22LHDVosgesRF-2024-12-20.tif"
  ],
  "calculated_at": "2026-09-19T23:15:08+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-vosges.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-vosges",
  "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": [
   "E1009-N6791",
   "E1009-N6792",
   "E1010-N6791",
   "E1010-N6792"
  ],
  "elevation_blocks": [
   "22LHDVosgesRF@2024-12-20"
  ],
  "ign_dalles": [
   "LHD_FXX_1009_6792_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_1009_6793_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_1010_6792_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_1010_6793_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHDVosgesRF"
  ],
  "ign_editions": [
   "2024-12-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1009_6792_MNT_O_0M50_LAMB93_IGN69": "2024-12-20",
   "LHD_FXX_1009_6793_MNT_O_0M50_LAMB93_IGN69": "2024-12-20",
   "LHD_FXX_1010_6792_MNT_O_0M50_LAMB93_IGN69": "2024-12-20",
   "LHD_FXX_1010_6793_MNT_O_0M50_LAMB93_IGN69": "2024-12-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 86,
   "stations_resolved": 86,
   "width_median_m": 5.25,
   "width_p10_m": 3.25,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.314,
   "unbounded_share": 0.686,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.0,
   "window_m": [
    1973.0,
    1998.0
   ],
   "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": 86,
    "stations_resolved": 86,
    "width_median_m": 7.12,
    "width_p10_m": 1.12,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.547,
    "unbounded_share": 0.453,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.5,
    "window_m": [
     1973.0,
     1998.0
    ],
    "width_at_max25_m": 4.25,
    "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": "Lapoutroie",
  "county": "Haut-Rhin",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}