Xi'an is a city in Shaanxi province, China.
Direction East Towards Weinan, Shaolin Temple, Zhengzhou
You can take bus 213 from the south-east corner of the south gate. It takes more than one hour, but takes you straight to the motorway outside of the motorway ring. It's a little tricky to remember when to leave the bus. After about 1 hour, it crosses the motorway from south to north, then goes parallel for a while (you can see the motorway most of the time). Then it turns right. As soon as you see the green motorway signs, get off the bus and walk up the ramp.