A high-occupancy vehicle lane (also HOV lane, carpool lane, diamond lane, and transit lane) is a restricted traffic lane reserved at peak travel times or longer for exclusive use of vehicles with a driver and one or more passengers. The normal minimum occupancy level is 2 or 3 occupants. HOV lanes are normally created to increase higher average vehicle occupancy and person throughput with the goal of reducing traffic congestion and air pollution.
n. 鉆石,像鉆石的物質,菱形,紙牌的方塊,棒球內場