{
 "ocl_version": "0.1.0",
 "name": "Chemin des Vayoux",
 "slug": "chemin-des-vayoux",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.20423268778262,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 565.0,
   "end_distance_m": 567.0,
   "start_elevation_m": 60.92223537350765,
   "end_elevation_m": 61.3663200272633,
   "min_gradient_pct": -6.619373074644841
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.122208591697284,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 564.0,
   "end_distance_m": 567.0,
   "start_elevation_m": 60.70265376951238,
   "end_elevation_m": 61.3663200272633,
   "min_gradient_pct": -6.596365524181162
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.855177459749484,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 564.0,
   "end_distance_m": 569.0,
   "start_elevation_m": 60.70265376951238,
   "end_elevation_m": 61.795412642499855,
   "min_gradient_pct": -6.113672779250123
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.582910146044654,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 561.0,
   "end_distance_m": 571.0,
   "start_elevation_m": 60.0736111125496,
   "end_elevation_m": 62.231902127154065,
   "min_gradient_pct": -5.610725154803049
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.981107285990532,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 555.0,
   "end_distance_m": 575.0,
   "start_elevation_m": 58.84236994986507,
   "end_elevation_m": 63.03859140706318,
   "min_gradient_pct": -5.323452213023145
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.79321944151411,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 546.0,
   "end_distance_m": 571.0,
   "start_elevation_m": 57.03359726677554,
   "end_elevation_m": 62.231902127154065,
   "min_gradient_pct": -5.092462297560871
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.386062635311703,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 528.0,
   "end_distance_m": 578.0,
   "start_elevation_m": 53.90466830248465,
   "end_elevation_m": 63.5976996201405,
   "min_gradient_pct": -2.466624434400785
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.999662119319233,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 517.0,
   "end_distance_m": 617.0,
   "start_elevation_m": 52.457056010413616,
   "end_elevation_m": 68.45671812973285,
   "min_gradient_pct": -0.17007564711130385
  }
 ],
 "shape": {
  "ascent_concentration": 0.382,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 113.0,
  "shape_class": "sustained"
 },
 "length_m": 1015.8924551893991,
 "start_elevation_m": 23.35483650168465,
 "end_elevation_m": 89.72422309802924,
 "endpoint_gain_m": 66.36938659634458,
 "overall_gradient_pct": 6.533111478219506,
 "accumulated_ascent_m": 69.2273862409499,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.855177459749484,
   "start_distance_m": 564.0,
   "end_distance_m": 569.0,
   "midpoint_distance_m": 566.5,
   "start_elevation_m": 60.70265376951238,
   "end_elevation_m": 61.795412642499855,
   "start_xy": [
    1015354.5932687155,
    6286426.757396614
   ],
   "end_xy": [
    1015351.4993001694,
    6286430.685164255
   ]
  },
  "max_10m": {
   "gradient_pct": 21.582910146044654,
   "start_distance_m": 561.0,
   "end_distance_m": 571.0,
   "midpoint_distance_m": 566.0,
   "start_elevation_m": 60.0736111125496,
   "end_elevation_m": 62.231902127154065,
   "start_xy": [
    1015356.4496498433,
    6286424.40073603
   ],
   "end_xy": [
    1015350.2617127509,
    6286432.256271311
   ]
  },
  "max_20m": {
   "gradient_pct": 20.981107285990532,
   "start_distance_m": 555.0,
   "end_distance_m": 575.0,
   "midpoint_distance_m": 565.0,
   "start_elevation_m": 58.84236994986507,
   "end_elevation_m": 63.03859140706318,
   "start_xy": [
    1015360.1624120987,
    6286419.687414862
   ],
   "end_xy": [
    1015348.4535582096,
    6286435.80237255
   ]
  },
  "max_25m": {
   "gradient_pct": 20.79321944151411,
   "start_distance_m": 546.0,
   "end_distance_m": 571.0,
   "midpoint_distance_m": 558.5,
   "start_elevation_m": 57.03359726677554,
   "end_elevation_m": 62.231902127154065,
   "start_xy": [
    1015365.7315554819,
    6286412.61743311
   ],
   "end_xy": [
    1015350.2617127509,
    6286432.256271311
   ]
  },
  "max_50m": {
   "gradient_pct": 19.386062635311703,
   "start_distance_m": 528.0,
   "end_distance_m": 578.0,
   "midpoint_distance_m": 553.0,
   "start_elevation_m": 53.90466830248465,
   "end_elevation_m": 63.5976996201405,
   "start_xy": [
    1015376.8171686683,
    6286398.438832051
   ],
   "end_xy": [
    1015347.2255798801,
    6286438.539536999
   ]
  },
  "max_100m": {
   "gradient_pct": 15.999662119319233,
   "start_distance_m": 517.0,
   "end_distance_m": 617.0,
   "midpoint_distance_m": 567.0,
   "start_elevation_m": 52.457056010413616,
   "end_elevation_m": 68.45671812973285,
   "start_xy": [
    1015383.0150184339,
    6286389.35111186
   ],
   "end_xy": [
    1015370.8074360763,
    6286467.9980406
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.113672779250123,
   "start_distance_m": 979.0,
   "end_distance_m": 984.0,
   "midpoint_distance_m": 981.5,
   "start_elevation_m": 90.9597157541182,
   "end_elevation_m": 90.6540321151557,
   "start_xy": [
    1015585.8532679111,
    6286660.619461353
   ],
   "end_xy": [
    1015583.3815880219,
    6286664.965815978
   ]
  },
  "min_10m": {
   "gradient_pct": -5.610725154803049,
   "start_distance_m": 979.0,
   "end_distance_m": 989.0,
   "midpoint_distance_m": 984.0,
   "start_elevation_m": 90.9597157541182,
   "end_elevation_m": 90.3986432386379,
   "start_xy": [
    1015585.8532679111,
    6286660.619461353
   ],
   "end_xy": [
    1015580.9099081326,
    6286669.312170603
   ]
  },
  "min_20m": {
   "gradient_pct": -5.323452213023145,
   "start_distance_m": 979.0,
   "end_distance_m": 999.0,
   "midpoint_distance_m": 989.0,
   "start_elevation_m": 90.9597157541182,
   "end_elevation_m": 89.89502531151358,
   "start_xy": [
    1015585.8532679111,
    6286660.619461353
   ],
   "end_xy": [
    1015575.9665483542,
    6286678.004879853
   ]
  },
  "min_25m": {
   "gradient_pct": -5.092462297560871,
   "start_distance_m": 974.0,
   "end_distance_m": 999.0,
   "midpoint_distance_m": 986.5,
   "start_elevation_m": 91.1681408859038,
   "end_elevation_m": 89.89502531151358,
   "start_xy": [
    1015588.3249478004,
    6286656.273106728
   ],
   "end_xy": [
    1015575.9665483542,
    6286678.004879853
   ]
  },
  "min_50m": {
   "gradient_pct": -2.466624434400785,
   "start_distance_m": 965.0,
   "end_distance_m": 1015.0,
   "midpoint_distance_m": 990.0,
   "start_elevation_m": 90.96090814084947,
   "end_elevation_m": 89.72759592364908,
   "start_xy": [
    1015592.7739716009,
    6286648.449668404
   ],
   "end_xy": [
    1015568.0571727088,
    6286691.913214652
   ]
  },
  "min_100m": {
   "gradient_pct": -0.17007564711130385,
   "start_distance_m": 791.0,
   "end_distance_m": 891.0,
   "midpoint_distance_m": 841.0,
   "start_elevation_m": 80.18533719064106,
   "end_elevation_m": 80.01526154352976,
   "start_xy": [
    1015508.4284849513,
    6286564.869205174
   ],
   "end_xy": [
    1015607.4361661086,
    6286576.000018785
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.20423268778262,
   "start_distance_m": 565.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 566.0,
   "start_elevation_m": 60.92223537350765,
   "end_elevation_m": 61.3663200272633,
   "start_xy": [
    1015353.9744750063,
    6286427.542950142
   ],
   "end_xy": [
    1015352.7368875879,
    6286429.114057198
   ]
  },
  "max_3m": {
   "gradient_pct": 22.122208591697284,
   "start_distance_m": 564.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 565.5,
   "start_elevation_m": 60.70265376951238,
   "end_elevation_m": 61.3663200272633,
   "start_xy": [
    1015354.5932687155,
    6286426.757396614
   ],
   "end_xy": [
    1015352.7368875879,
    6286429.114057198
   ]
  }
 },
 "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": 0.172,
   "obstruction_max_height_m": 16.72,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    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:2154",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/fr/ign-lidarhd_dtm_E1015-N6286_0m5.tif"
  ],
  "calculated_at": "2026-09-17T02:44:35+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-alps4",
  "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": [
   "E1015-N6286"
  ],
  "elevation_blocks": [
   "22LHD6RQ@2025-03-13"
  ],
  "ign_dalles": [
   "LHD_FXX_1015_6287_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6RQ"
  ],
  "ign_editions": [
   "2025-03-13"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1015_6287_MNT_O_0M50_LAMB93_IGN69": "2025-03-13"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 47,
   "stations_resolved": 47,
   "width_median_m": 7.0,
   "width_p10_m": 2.95,
   "width_min_m": 1.5,
   "width_max_m": 11.0,
   "bounded_share": 0.191,
   "unbounded_share": 0.809,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.25,
   "window_m": [
    546.0,
    571.0
   ],
   "width_at_max25_m": 3.25,
   "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": 47,
    "stations_resolved": 47,
    "width_median_m": 5.75,
    "width_p10_m": 1.25,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.83,
    "unbounded_share": 0.17,
    "confidence_median": 1.0,
    "width_median_bounded_m": 5.25,
    "window_m": [
     546.0,
     571.0
    ],
    "width_at_max25_m": 2.0,
    "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": "Auribeau-sur-Siagne",
  "county": "Alpes-Maritimes",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}