west entrance; west exit
Refers to the west-side entrance or exit of a station, building, or similar facility. Context determines whether it is an entrance or exit.
Let's meet at the west exit of the station.
There is a bus stop right outside the west exit.
We met up at the west exit of Shinjuku Station.
I got off the train and left through the west exit.
I decided to wait for my friend at the west exit.