{
 "ocl_version": "0.1.0",
 "name": "Mont\u00e9e de Jussieu",
 "slug": "montee-de-jussieu",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 40.3879280506942,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 977.0,
   "end_distance_m": 979.0,
   "start_elevation_m": 409.7375560989629,
   "end_elevation_m": 410.5453146599768,
   "min_gradient_pct": -3.5289793425846483
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.16555442091006,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 977.0,
   "end_distance_m": 980.0,
   "start_elevation_m": 409.7375560989629,
   "end_elevation_m": 410.8825227315902,
   "min_gradient_pct": -3.442611816446591
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 34.38571759251204,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 977.0,
   "end_distance_m": 982.0,
   "start_elevation_m": 409.7375560989629,
   "end_elevation_m": 411.4568419785885,
   "min_gradient_pct": 0.26564246203292896
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.878779761932492,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 973.0,
   "end_distance_m": 983.0,
   "start_elevation_m": 408.9440222225679,
   "end_elevation_m": 411.6319001987612,
   "min_gradient_pct": 0.5244106326267683
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.238226830689086,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 19.0,
   "end_distance_m": 39.0,
   "start_elevation_m": 308.5759577508255,
   "end_elevation_m": 312.82360311696334,
   "min_gradient_pct": 0.8332069179067503
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.52404918108141,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 14.0,
   "end_distance_m": 39.0,
   "start_elevation_m": 307.442590821693,
   "end_elevation_m": 312.82360311696334,
   "min_gradient_pct": 0.7780034530067041
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.185977534669973,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 150.0,
   "end_distance_m": 200.0,
   "start_elevation_m": 326.4664901257427,
   "end_elevation_m": 336.0594788930777,
   "min_gradient_pct": 1.2624688831165258
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.42286228148231,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 109.0,
   "end_distance_m": 209.0,
   "start_elevation_m": 319.1357761321638,
   "end_elevation_m": 337.5586384136461,
   "min_gradient_pct": 2.821728577902036
  }
 ],
 "shape": {
  "ascent_concentration": 0.36,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 184.0,
  "shape_class": "sustained"
 },
 "length_m": 1239.2000016511906,
 "start_elevation_m": 306.0448931201203,
 "end_elevation_m": 434.0112903564604,
 "endpoint_gain_m": 127.96639723634007,
 "overall_gradient_pct": 10.326533010476867,
 "accumulated_ascent_m": 128.3798808120797,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 34.38571759251204,
   "start_distance_m": 977.0,
   "end_distance_m": 982.0,
   "midpoint_distance_m": 979.5,
   "start_elevation_m": 409.7375560989629,
   "end_elevation_m": 411.4568419785885,
   "start_xy": [
    819876.4624338672,
    6518851.500378199
   ],
   "end_xy": [
    819871.5951352428,
    6518852.644670163
   ]
  },
  "max_10m": {
   "gradient_pct": 26.878779761932492,
   "start_distance_m": 973.0,
   "end_distance_m": 983.0,
   "midpoint_distance_m": 978.0,
   "start_elevation_m": 408.9440222225679,
   "end_elevation_m": 411.6319001987612,
   "start_xy": [
    819880.3377304007,
    6518851.382435641
   ],
   "end_xy": [
    819870.621675518,
    6518852.873528557
   ]
  },
  "max_20m": {
   "gradient_pct": 21.238226830689086,
   "start_distance_m": 19.0,
   "end_distance_m": 39.0,
   "midpoint_distance_m": 29.0,
   "start_elevation_m": 308.5759577508255,
   "end_elevation_m": 312.82360311696334,
   "start_xy": [
    820329.204447149,
    6518190.68354591
   ],
   "end_xy": [
    820320.7582011266,
    6518208.772795699
   ]
  },
  "max_25m": {
   "gradient_pct": 21.52404918108141,
   "start_distance_m": 14.0,
   "end_distance_m": 39.0,
   "midpoint_distance_m": 26.5,
   "start_elevation_m": 307.442590821693,
   "end_elevation_m": 312.82360311696334,
   "start_xy": [
    820331.1194713393,
    6518186.064814228
   ],
   "end_xy": [
    820320.7582011266,
    6518208.772795699
   ]
  },
  "max_50m": {
   "gradient_pct": 19.185977534669973,
   "start_distance_m": 150.0,
   "end_distance_m": 200.0,
   "midpoint_distance_m": 175.0,
   "start_elevation_m": 326.4664901257427,
   "end_elevation_m": 336.0594788930777,
   "start_xy": [
    820293.8326121165,
    6518301.9133585915
   ],
   "end_xy": [
    820273.6339866857,
    6518346.974158576
   ]
  },
  "max_100m": {
   "gradient_pct": 18.42286228148231,
   "start_distance_m": 109.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 159.0,
   "start_elevation_m": 319.1357761321638,
   "end_elevation_m": 337.5586384136461,
   "start_xy": [
    820298.3185699637,
    6518263.820026963
   ],
   "end_xy": [
    820267.1082443222,
    6518353.172116837
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.26564246203292896,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 306.0448931201203,
   "end_elevation_m": 306.05817524322197,
   "start_xy": [
    820339.955,
    6518175.224
   ],
   "end_xy": [
    820336.7685026142,
    6518179.077081159
   ]
  },
  "min_10m": {
   "gradient_pct": 0.5244106326267683,
   "start_distance_m": 576.0,
   "end_distance_m": 586.0,
   "midpoint_distance_m": 581.0,
   "start_elevation_m": 375.4610612838172,
   "end_elevation_m": 375.51350234707985,
   "start_xy": [
    820133.8961348254,
    6518612.952436421
   ],
   "end_xy": [
    820124.2562784639,
    6518615.611979488
   ]
  },
  "min_20m": {
   "gradient_pct": 0.8332069179067503,
   "start_distance_m": 562.0,
   "end_distance_m": 582.0,
   "midpoint_distance_m": 572.0,
   "start_elevation_m": 375.32045145161806,
   "end_elevation_m": 375.4870928351994,
   "start_xy": [
    820147.8537101041,
    6518613.187731317
   ],
   "end_xy": [
    820128.1122210085,
    6518614.548162262
   ]
  },
  "min_25m": {
   "gradient_pct": 0.7780034530067041,
   "start_distance_m": 561.0,
   "end_distance_m": 586.0,
   "midpoint_distance_m": 573.5,
   "start_elevation_m": 375.3190014838282,
   "end_elevation_m": 375.51350234707985,
   "start_xy": [
    820148.8530277612,
    6518613.224666669
   ],
   "end_xy": [
    820124.2562784639,
    6518615.611979488
   ]
  },
  "min_50m": {
   "gradient_pct": 1.2624688831165258,
   "start_distance_m": 546.0,
   "end_distance_m": 596.0,
   "midpoint_distance_m": 571.0,
   "start_elevation_m": 375.0938766248132,
   "end_elevation_m": 375.7251110663715,
   "start_xy": [
    820163.640603984,
    6518615.386064811
   ],
   "end_xy": [
    820114.7163263854,
    6518618.549183781
   ]
  },
  "min_100m": {
   "gradient_pct": 2.821728577902036,
   "start_distance_m": 497.0,
   "end_distance_m": 597.0,
   "midpoint_distance_m": 547.0,
   "start_elevation_m": 372.927393187671,
   "end_elevation_m": 375.749121765573,
   "start_xy": [
    820209.0872107456,
    6518611.604277863
   ],
   "end_xy": [
    820113.8038806363,
    6518618.958381478
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 40.3879280506942,
   "start_distance_m": 977.0,
   "end_distance_m": 979.0,
   "midpoint_distance_m": 978.0,
   "start_elevation_m": 409.7375560989629,
   "end_elevation_m": 410.5453146599768,
   "start_xy": [
    819876.4624338672,
    6518851.500378199
   ],
   "end_xy": [
    819874.5155144174,
    6518851.958094984
   ]
  },
  "max_3m": {
   "gradient_pct": 38.16555442091006,
   "start_distance_m": 977.0,
   "end_distance_m": 980.0,
   "midpoint_distance_m": 978.5,
   "start_elevation_m": 409.7375560989629,
   "end_elevation_m": 410.8825227315902,
   "start_xy": [
    819876.4624338672,
    6518851.500378199
   ],
   "end_xy": [
    819873.5420546926,
    6518852.186953378
   ]
  }
 },
 "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": 0.035,
   "obstruction_max_height_m": 10.7,
   "flagged_windows_m": [
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "076a8e7f889cfb3c2cf6b3de65a6030c7155b1f0",
   "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-mc8",
   "road_pbf": "block-batch-fr-mc8.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_E819-N6518_0m5@22LHD4NL-2025-08-06.tif",
   "data/cache/fr/ign-lidarhd_dtm_E819-N6519_0m5@22LHD4NL-2025-08-06.tif",
   "data/cache/fr/ign-lidarhd_dtm_E820-N6518_0m5@22LHD4NL-2025-08-06.tif",
   "data/cache/fr/ign-lidarhd_dtm_E820-N6519_0m5@22LHD4NL-2025-08-06.tif"
  ],
  "calculated_at": "2026-09-22T13:45:02+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc8.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc8",
  "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": [
   "E819-N6518",
   "E819-N6519",
   "E820-N6518",
   "E820-N6519"
  ],
  "elevation_blocks": [
   "22LHD4NL@2025-08-06"
  ],
  "ign_dalles": [
   "LHD_FXX_0819_6519_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0819_6520_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0820_6519_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0820_6520_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD4NL"
  ],
  "ign_editions": [
   "2025-08-06"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0819_6519_MNT_O_0M50_LAMB93_IGN69": "2025-08-06",
   "LHD_FXX_0819_6520_MNT_O_0M50_LAMB93_IGN69": "2025-08-06",
   "LHD_FXX_0820_6519_MNT_O_0M50_LAMB93_IGN69": "2025-08-06",
   "LHD_FXX_0820_6520_MNT_O_0M50_LAMB93_IGN69": "2025-08-06"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 7,
  "carriageway": {
   "stations": 56,
   "stations_resolved": 56,
   "width_median_m": 4.5,
   "width_p10_m": 1.75,
   "width_min_m": 0.5,
   "width_max_m": 12.0,
   "bounded_share": 0.25,
   "unbounded_share": 0.75,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.0,
   "window_m": [
    14.0,
    39.0
   ],
   "width_at_max25_m": 1.25,
   "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": 56,
    "stations_resolved": 56,
    "width_median_m": 6.5,
    "width_p10_m": 2.25,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.625,
    "unbounded_share": 0.375,
    "confidence_median": 0.998,
    "width_median_bounded_m": 4.25,
    "window_m": [
     14.0,
     39.0
    ],
    "width_at_max25_m": 1.75,
    "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": "Bessenay",
  "county": "Rh\u00f4ne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}