Can any of you share with the rest of us BART's official policy, if there is one, on train temperature control, or is it up to the train operator's personal discretion? Asking because too often when the train is over-packed, with body temperatures rising, on a scorching day in the 80s/90s, the AC is not on. But yet on a cooler but still sunny day in the high 60s, like much of this week, the AC would be blasting, and passengers are shivering.
Just would like to learn what's behind the decision making here. Please do share! Thanks!