How the hell did Porsche shut down a major runway?

My recent test of the 2021 Porsche 911 Turbo S on the third runway at Sydney Airport was noteworthy for a few reasons. Firstly, the opportunity to safely test launch control on a car as fast as the Turbo S is special. Then there was the chance to crack 300km/h if the conditions were right. Beyond that, though, closing down a runway at an international airport, regardless of the reduced demand, is a monumental task.