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近幾年，不少人開始找人拼車上下班，這樣不僅能減少車輛開支，同時(shí)也能為緩解交通擁堵貢獻(xiàn)一份力量。在國外，不少城市都在交通高峰時(shí)段為這一類車輛開設(shè)專用車道，叫做HOV lane。

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.

拼車專用道（carpool lane），也叫高上座率機(jī)動(dòng)車道（high-occupancy vehicle lane，HOV lane）、鉆石車道（diamond lane）或快速車道（transit lane），指在交通高峰時(shí)段專門預(yù)留給那些除司機(jī)外還搭乘有一名或多名乘客的機(jī)動(dòng)車行駛的車道。每輛車最少要載有2到3個(gè)人。開設(shè)拼車專用道是為了提高車輛的平均上座率和人員通行量，以緩解交通擁堵和空氣污染。