Both Wynn Las Vegas and Resorts World Las Vegas are proposing new tunnels of their own, which would link up with the existing one to extend the autonomous transport system to two new destinations.

The Boring Company has a number of projects and proposals in the works, which include potential transport tunnels for the Chicago airport, a connection out to Dodger Stadium in LA and even underground transport systems for China. It has also built a test tunnel out of its own facility in LA, but its efforts beneath the Las Vegas Convention Center are by far the farthest along.

Work began last March, with The Boring Company burrowing a pair of one-way tunnels covering a distance of 3.2 km (2 miles) from end to end. Known as the Convention Center Loop, the system features three passenger stations where folks board autonomous Teslas that shuttle them back and forth at up to 155 mph (250 km/h). This will cut a 15-minute trip on foot to around one minute.

The Boring Company completed the second of these tunnels last month and is now in the process of preparing them for the public debut of the Convention Center Loop in January 2021. But it might not be too long before its tunneling machines go to work in Sin City once again.