I'll see you there... I'm going to ride the groundiron.
In Chinese, the word for subway is 地铁. The first word is 地, pronounced di4, which means "earth" or "ground" or "field" or "place" or "land". The second word is 铁, pronounced tie3, which means "iron". So, if you don't want to take a cab, just take the groundiron.

