what are the options for travel from Zhengzhou to Xian.

Hi, the high speed trains between the two places are very convenient. You will arrive at Xian North Railway Station, where you can walk to the underground of the same building to take subway line 2 to North Main Street (Beidajie) Station. Then you can take a taxi to the local train station. There you can take bus no. 306 (Tourist Bus no. 5), 914 or 915 to the Terracotta Warriors Museum directly.