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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": [ "E825-N6970", "E825-N6971", "E826-N6970", "E826-N6971", "E827-N6970", "E827-N6971", "E828-N6970", "E828-N6971", "E828-N6972", "E828-N6973", "E829-N6972", "E829-N6973" ], "elevation_blocks": [ "24LHDNC@2026-05-18" ], "ign_dalles": [ "LHD_FXX_0825_6971_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0825_6972_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0826_6971_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0826_6972_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0827_6971_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0827_6972_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0828_6971_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0828_6972_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0828_6973_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0828_6974_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0829_6973_MNT_0M50_LAMB93_IGN69", "LHD_FXX_0829_6974_MNT_0M50_LAMB93_IGN69" ], "ign_missions": [ "24LHDNC" ], "ign_editions": [ "2026-05-18" ], "ign_dsm_edition": { "LHD_FXX_0825_6971_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0825_6972_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0826_6971_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0826_6972_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0827_6971_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0827_6972_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0828_6971_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0828_6972_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0828_6973_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0828_6974_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0829_6973_MNT_0M50_LAMB93_IGN69": "2026-05-18", "LHD_FXX_0829_6974_MNT_0M50_LAMB93_IGN69": "2026-05-18" }, "climb_origin": "named-pass", "seam_filled_samples": { "count": 0, "distances_m": [] }, "seam_filled_in_maximum": false, "structure_own_ways": 8, "carriageway": { "stations": 288, "stations_resolved": 288, "width_median_m": 8.75, "width_p10_m": 6.0, "width_min_m": 2.0, "width_max_m": 12.0, "bounded_share": 0.062, "unbounded_share": 0.938, "confidence_median": 0.0, "width_median_bounded_m": 7.62, "window_m": [ 2599.0, 2624.0 ], "width_at_max25_m": 12.0, "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": 288, "stations_resolved": 288, "width_median_m": 10.75, "width_p10_m": 6.75, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.233, "unbounded_share": 0.767, "confidence_median": 0.0, "width_median_bounded_m": 7.5, "window_m": [ 2599.0, 2624.0 ], "width_at_max25_m": 12.0, "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": "Nouzonville", "county": "Ardennes", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }