This is one of the things I find infuriating about the Subway in NYC.
There are local trains and express trains. Often, you'll have to wait on the platform for an extra ~10 minutes for a local (v.s. getting on the first available express).
Then partway through the journey, they'll declare that the local needs to go express to make up time. You'll be kicked off and told to wait for the next train.
To make matters worse, the next train is usually in the same predicament, so you end up waiting indefinitely (or giving up and finding another way home).
Sounds like a dark pattern to push people towards express. If the train changes how fast it moves or where it stops, that's their problem. The passengers should be allowed to get off at the nearest stop to their original destination, and any potential difference in fares should be eaten by the operator
There are local trains and express trains. Often, you'll have to wait on the platform for an extra ~10 minutes for a local (v.s. getting on the first available express).
Then partway through the journey, they'll declare that the local needs to go express to make up time. You'll be kicked off and told to wait for the next train.
To make matters worse, the next train is usually in the same predicament, so you end up waiting indefinitely (or giving up and finding another way home).