https://www.dnainfo.com/new-york/20170619/union-square/subway-mta-train-delay-stall-f-train
The MTA is slated to do away with some prerecorded messages for routine communication, as well as during stalls and delays — an effort to better communicate with riders in the wake of a June 5 incident where straphangers were trapped in a stalled F train for nearly an hour without air conditioning, agency officials said Monday.
I heard this yesterday at the Parade of Trains.