How do they close the road and control traffic before they begin putting up the “Road Closed” signs?

Question

How do they close the road and control traffic before they begin putting up the “Road Closed” signs?

In: 8

Answer 1

You ever see those black ropes that go across the road? Those are monitoring traffic flow. After collecting the data they inform news networks and suchs to decide when the best time to do construction unless it’s an emergency.