Tour buses in Taiwan have an average height of 3.5 meters, while Japan limits theirs to 3.2 meters. When driving on mountain roads that are too narrow and have overly tight turns, buses are likely to sway from side to side due to their high center of gravity, a serious hazard.
國內遊覽車平均高達 3.5 米（日本限車高 3.2 米），在路寬不足、轉彎角度過大的山區趴趴走，容易重心不穩左右搖晃，險象環生。