lamp bank signal

例句：

1. 1. The lampbank signal is used to indicate the presence of a vehicle in the area.
   灯箱信号用于指示区域内车辆的存在。
2. 2.The lamp bank signal was designed to improve safety on busy roads.
   灯箱信号设计用于提高繁忙道路的安全性。
3. 3. The lamp bank signal has been shown to reduce traffic congestion by alerting drivers to nearby vehicles.
   灯箱信号已被证明通过警告司机附近车辆来减少交通拥堵。