Perched on the Leeds Avenue overpass, North Charleston Police Pfc Matt Woodall aimed his laser speed-tracking device at approaching eastbound vehicles on Interstate 526.

“Lane two, 71 miles per hour, silver Lexus,” he said.

The information was radioed to waiting traffic enforcement officers. A cruiser accelerated down the on-ramp and closed on the speeder, blue lights flashing.

“People have got to slow down. If you have got to be somewhere, leave 15 minutes early,” said Maj. K. Coyle Kinard.

The pattern of tracking speeders and pulling them over for ticketing proceeded at a steady pace at mid-afternoon today.

A motorcyclist was clocked at 139 miles per hour heading toward Mount Pleasant.

“That’s the fastest speed I’ve seen on the Mark Clark. We never caught him. There was no way we could catch up to him. He either got on Interstate 26 or went straight into Mount Pleasant ,” Kinard said.

At the other end of the speed spectrum, police stopped a bicyclist riding illegally along I-526 toward Savannah Highway.

Kinard said the traffic enforcement patrol was not happening because two people died in crashes on the interstate this week. The operation was planned before those wrecks occurred as part of an ongoing enforcement strategy on I-526.

“Periodically we will do radar operation to have people slow down. It’s not just going to be today. It will be steady enforcement on the Mark Clark,” he said.

Read more in upcoming editions of The Post and Courier.