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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": [ "E688-N6499", "E689-N6498", "E689-N6499", "E690-N6496", "E690-N6497", "E690-N6498", "E690-N6499", "E691-N6496", "E691-N6497", "E691-N6498" ], "elevation_blocks": [ "22LHD4LL@2025-07-24" ], "ign_dalles": [ "LHD_FXX_0688_6500_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0689_6499_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0689_6500_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0690_6497_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0690_6498_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0690_6499_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0690_6500_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0691_6497_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0691_6498_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0691_6499_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD4LL" ], "ign_editions": [ "2025-07-24" ], "ign_dsm_edition": { "LHD_FXX_0688_6500_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0689_6499_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0689_6500_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0690_6497_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0690_6498_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0690_6499_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0690_6500_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0691_6497_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0691_6498_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0691_6499_MNT_O_0M50_LAMB93_IGN69": "2025-07-24" }, "climb_origin": "named-pass", "structure_own_ways": 9, "structure_mask_ranges_m": [ [ 1420.5, 1433.1 ] ], "mask_basin_extension_m": 14.0, "carriageway": { "stations": 344, "stations_resolved": 344, "width_median_m": 8.25, "width_p10_m": 6.75, "width_min_m": 2.25, "width_max_m": 12.0, "bounded_share": 0.328, "unbounded_share": 0.672, "confidence_median": 0.0, "width_median_bounded_m": 8.0, "window_m": [ 7777.0, 7802.0 ], "width_at_max25_m": 9.0, "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": 344, "stations_resolved": 344, "width_median_m": 9.75, "width_p10_m": 6.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.544, "unbounded_share": 0.456, "confidence_median": 0.96, "width_median_bounded_m": 9.0, "window_m": [ 7777.0, 7802.0 ], "width_at_max25_m": 10.75, "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": "Chambon-sur-Lac", "county": "Puy-de-D\u00f4me", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }