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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": [ "E994-N6511", "E994-N6512", "E994-N6513", "E995-N6511", "E995-N6512", "E995-N6513", "E995-N6514" ], "elevation_blocks": [ "21LHD5RL@2025-06-04" ], "ign_dalles": [ "LHD_FXX_0994_6512_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0994_6513_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0994_6514_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0995_6512_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0995_6513_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0995_6514_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0995_6515_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD5RL" ], "ign_editions": [ "2025-06-04" ], "ign_dsm_edition": { "LHD_FXX_0994_6512_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0994_6513_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0994_6514_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0995_6512_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0995_6513_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0995_6514_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0995_6515_MNT_O_0M50_LAMB93_IGN69": "2025-06-04" }, "elevation_cache_legacy_tiles": { "E994-N6511/dtm": "cached before the sidecar rule (2026-09-19); its bytes are now digested, but the IGN LiDAR HD MNT 0.5 m edition they came from was never proven", "E994-N6512/dtm": "cached before the sidecar rule (2026-09-19); its bytes are now digested, but the IGN LiDAR HD MNT 0.5 m edition they came from was never proven", "E994-N6513/dtm": "cached before the sidecar rule (2026-09-19); its bytes are now digested, but the IGN LiDAR HD MNT 0.5 m edition they came from was never proven", "E995-N6511/dtm": "cached before the sidecar rule (2026-09-19); its bytes are now digested, but the IGN LiDAR HD MNT 0.5 m edition they came from was never proven", "E995-N6512/dtm": "cached before the sidecar rule (2026-09-19); its bytes are now digested, but the IGN LiDAR HD MNT 0.5 m edition they came from was never proven", "E995-N6513/dtm": "cached before the sidecar rule (2026-09-19); its bytes are now digested, but the IGN LiDAR HD MNT 0.5 m edition they came from was never proven", "E995-N6514/dtm": "cached before the sidecar rule (2026-09-19); its bytes are now digested, but the IGN LiDAR HD MNT 0.5 m edition they came from was never proven" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "structure_mask_ranges_m": [ [ 1151.9, 1181.9 ], [ 1150.9, 1180.9 ], [ 1150.9, 1180.9 ], [ 1149.4, 1179.4 ], [ 1143.5, 1173.5 ], [ 1137.0, 1167.0 ], [ 1136.9, 1166.9 ], [ 1113.4, 1143.4 ], [ 1122.1, 1152.1 ], [ 1104.9, 1134.9 ], [ 1117.2, 1147.2 ], [ 1114.7, 1144.7 ], [ 1108.3, 1138.3 ], [ 1107.3, 1137.3 ], [ 1109.8, 1139.8 ], [ 1103.3, 1133.3 ], [ 1101.6, 1131.6 ], [ 1102.4, 1132.4 ], [ 1134.4, 1164.4 ], [ 1100.0, 1130.0 ], [ 1111.7, 1141.7 ], [ 1148.1, 1178.1 ], [ 1135.3, 1165.3 ], [ 1112.3, 1142.3 ], [ 1116.8, 1146.8 ], [ 1133.6, 1163.6 ], [ 1119.7, 1149.7 ], [ 1124.6, 1154.6 ], [ 1147.8, 1177.8 ], [ 1118.5, 1148.5 ], [ 1120.1, 1150.1 ], [ 1123.5, 1153.5 ], [ 1138.9, 1168.9 ], [ 1127.0, 1157.0 ], [ 1128.6, 1158.6 ], [ 1125.2, 1155.2 ], [ 1106.7, 1136.7 ], [ 1129.5, 1159.5 ], [ 1130.2, 1160.2 ], [ 1132.0, 1162.0 ], [ 1433.2, 1463.2 ], [ 1434.8, 1464.8 ], [ 1448.5, 1478.5 ], [ 1439.3, 1469.3 ], [ 1436.3, 1466.3 ], [ 1437.7, 1467.7 ], [ 1440.7, 1470.7 ], [ 1442.4, 1472.4 ], [ 1443.6, 1473.6 ], [ 1446.6, 1476.6 ], [ 1445.4, 1475.4 ], [ 1449.5, 1479.5 ], [ 0.0, 15.0 ] ], "carriageway": { "stations": 329, "stations_resolved": 329, "width_median_m": 3.5, "width_p10_m": 2.0, "width_min_m": 0.5, "width_max_m": 11.5, "bounded_share": 0.723, "unbounded_share": 0.277, "confidence_median": 0.832, "width_median_bounded_m": 3.5, "window_m": [ 4001.0, 4026.0 ], "width_at_max25_m": 1.75, "window_stations": 7, "single_track": true, "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": 329, "stations_resolved": 329, "width_median_m": 4.25, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.93, "unbounded_share": 0.07, "confidence_median": 1.0, "width_median_bounded_m": 4.0, "window_m": [ 4001.0, 4026.0 ], "width_at_max25_m": 3.25, "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 } }, "remeasured": { "on": "2026-09-21", "why": "corpus re-measure 2026-09-21: a mask that exists today reaching a page published before it did; fallers only (Peter: fold the fallers)", "published_max25_pct": 16.41, "max25_pct": 15.39 }, "license": "ODbL-1.0", "license_url": "https://howsteep.org/licensing" }, "area": { "place": "Bourg-Saint-Maurice", "county": "Savoie", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }