Developed countries like America often offer the traffic priority for the high occupancy vehicle ( HOV ) to detract the traffic congestion, protect environment and save resources. 美国等交通发达国家为减少道路交通拥挤程度,保护环境质量,节约资源,往往为载客人数较多的车辆(HOV)提供道路交通优先权。
The measure of constructing HOV ( High Occupancy Vehicle ) special lanes, to provide priority for high occupancy vehicle, is a very effective method to solve the problem of urban traffic congestion. 建设HOV(HighOccupancyVehicle,高载客率车辆)专用车道,为高载客率汽车提供道路通行优先权的措施,是解决城市交通拥堵问题的一种非常有效的方法。
In the phase of heavy synchronized flow with high road occupancy, there still exists some periodic waves which are very different from the traffic shockwave, and we could not attribute them to the periodic boundary conditions; 在高密度区所对应的同步交通流状态中,系统中仍然存在着周期性波动,该周期明显异于交通激波周期,因而其形成原因不能简单归结为周期边界条件的影响;