Is there any other university near northwest univesity?

Do you live in Taibai Campus located at No.229, North Taibai Road, Xian?
If yes, Northwestern Polytechnical University is nearby.

About the transportation, you must refer to the subway, right? The nearest one is Yongningmen Metro Station (subway line 2). It's about one mile (1.8km) away from the campus. Or you can take bus no.16, 18, 224, 251, 311, 402, 502, 604, 701, 800 or 910 to get to Southwest Corner Station.
Then walk south around 400 yards (370 meters). You can choose the way you like.