Can tour buses run through the Huancheng South Road Tunnel in Xi'an?

Yes. According to relevant information, Xi'an Huancheng South Road Tunnel Tour Bus is not within the restricted range and can pass through. Buses are large buses, as opposed to medium-sized buses and small buses. Among them, buses should be more than 9 meters and have more than 20 seats, minibuses should be 6-9 meters and have 10-19 seats, and minibuses under 6 meters should have less than 10 seats.