Two-day strikes by the union halted traffic in 1970 and 1973.
Once it was in the tunnel, policemen inside halted traffic.
The local police halted traffic to allow the events to continue.
The police halted traffic on 42nd Street after the collapse.
He made the first turn possible, and he could see police halting traffic ahead of him.
Heavy rain flooded the airport during May 2008 and halted traffic.
Two other officers followed him, using hand signals to halt traffic as they trailed the first officer.
If necessary, they halt traffic to usher the car back onto the road.
At other times, though, officers have escorted the ride through red lights and halted traffic to allow the procession to pass.
A serious traffic accident halted traffic in the town centre for over an hour.
