Bus No.233 goes to the subway 14 line. According to Baidu map, take bus No.233 at Debaomen Station of Expo Park, get off at Port Management Committee Station, take subway 14 line (west of the airport (T 1, T2, T3)) for 350 meters, get off at Xi 'an North Station (exit) and walk 490 meters to Xi 'an North Station.