Air con on evening commuter trains

[Trickytricky]

It's like the arctic in here! Is air con at 10pm on an evening when the temperature is just average really necessary!??

[BestIsWest]

YANBU. I was freezing on my train home too. Last week, heating was on and nearly burned my ankle.

[RepeatAdNauseum]

They have to turn it on and off under the train. It is typically either on or off all day, maybe for longer, depending on if the train crew have the time or inclination to change it.