I graduated from Beijing Jiaotong University. Let me tell you something. There are several hotels outside the south gate. Taiti Hotel is a three-star hotel, which is a little more expensive. Others are two-star and ordinary guest houses, and the standard room is about 100+. The Red Orchard Hotel on campus is in good condition, convenient to eat and more expensive. There is a basement guest house of the school logistics service center in the family area outside the east gate, which is very cheap and safe. There are many restaurants around, so I suggest staying there.