You're riding the subway in New York City. The train conductor makes an announcement because the train isn't stopping at its usual stops.
There is no local Brooklyn-bound service between 34th Street and Canal.
announcements, service, train 
You're getting into a subway car. The doors are going to close in a minute, so the train driver announces:
Stand clear of the closing doors please.
announcements, imperative, subway, train, warning, 日本語サポート 
You're waiting at a train station for a train to New York. You hear an announcement which says:
New York-bound local train, now boarding on track three.
announcements, direction, progressive aspect, station, train, travel, 日本語サポート 
Your mother is visiting you from out of town. She wants to go to a museum while you're at work. You're giving her directions to get there, and you say:
Transfer to the "R" at 42nd Street.
Your mother is visiting you from out of town. She wants to go to a museum while you're at work one day. You have to explain how to get there by train, so you start by saying:
You need to take the express train.
You can "ride" a train, or you can "take" a train. What's the difference?
You use "ride" when you want to talk about the experience of riding, or when you want to describe something that happened while you were riding the train:
I love riding the train in the middle of the day when it's not crowded.
I was riding the train, and this guy next to me started telling me a story about how he had just gotten out of prison.
As I was riding the train home, I realized that I'd left my keys in the closet at work.
You use "take" when you want to talk about how you get somewhere:
Just take the #3 train to 72nd Street and I'll meet you there.
Do you think it'll be faster to take the train or try to catch a bus?
An "express" train is supposed to go faster than a local train because it doesn't stop as often. The express train stops at more major stops.
"Express" means "fast" in a few other phrases:
