Automatic Traffic Barrier Used in parking lot Stable running with low noise ... up to 6m, 1-6s 2.0mm Mild steel Automatic Traffic Barrier: Application:Parking lots, toll gates, goods yards, railway crossings ... continously. AC motor can support long-lasting working of barrier gates. Cooling Fan processor is for decreasing working temperature ... , 3s, 6s(s=Second, m=Meter) ST002 Automatic Traffic Barrier