This is a giant boring machine that would need to start turning about 500 feet before the actual curve, creating a massive sweeping arc. At roughly 300 feet long, the machine can’t really handle anything close to a tight turn.
Looking at the specs, it only has a 12ft radius, which rules out anything bus-related. It’s really designed for cars, or maybe trams, as long as they’re fully electric. The only issue I could imagine is if you’re claustrophobic.