We live in central Bangkok, but my work is south of the city, in the province of Samut Prakan.
There is a train, known as the Skytrain, or the BTS, that has a route running north / south. I take it every day to work and back.
So on the return trip, since I am literally outside the city, I ride On the Train to Bangkok.
Only one stop is outside the city proper, so only five minutes are spent On The Train To Bangkok. The other 25 minutes are On The Train In Bangkok.
There is only one stop to hit along the way, but that will change soon, as they are expanding the line further south into Samut Prakan.
Here comes the train now: