Self-driving cars are already a reality, as companies like Google and Tesla have demonstrated. But the logistics of getting them on the roads with human-operated cars have slowed down their long-anticipated takeover. In Wisconsin, highway planners are looking into one way to accommodate autonomous vehicles when they arrive. Dedicated lanes for driverless cars are being considered for I-94, USA Today’s Journal Sentinel reports.

The project is supported by Foxconn, the Taiwanese tech supplier building a new facility 20 miles outside of downtown Milwaukee. Once the site is complete, it will cover 20 million square feet and employ up to 13,000 people. According to the company, setting aside space for self-driving vehicles could ease traffic congestion, both from new workers and cargo trucks, after the factory opens.

Officials were already planning to expand I-94 from six lanes to eight to accommodate the eventual increase in traffic, but Foxconn says that may not be enough. “We’re thinking about two years down the road; they’re thinking 20 years down the road,” Tim Sheehy, president of the Metropolitan Milwaukee Association of Commerce, said at a meeting of the Greater Milwaukee Committee.

While Sheehy said the autonomous car lane proposal is “on the table,” he didn’t make any promises regarding the plan’s future. Wisconsin isn’t the only state looking ahead to new developments in road travel: In October, tech investors pitched an idea to Washington state officials to convert Interstate 5 into a corridor for autonomous vehicles between Seattle and Vancouver.

[h/t Journal Sentinel]