traffic management device

例句：

1. 1. The traffic management device is designed to improve traffic flow.
   这个交通管理装置旨在改善交通流。
2. 2. The city has implemented a new traffic management device to reduce congestion.
   该市实施了一种新的交通管理装置以减少拥堵。
3. 3.The traffic management device helps to regulate the flow of vehicles and pedestrians.
   这个交通管理装置有助于规范车辆和行人的流动。