What if trains brought their heat with them instead of leaving it in the tunnels? I'm thinking some kind of large seal like thing in front of and behind trains that keeps the train surrounded by the same air. Stations serve as a spot to dump hot air and blow in cooler air. I guess the problem is it would take a lot of energy to push all that air around. Also the trains would be hotter.
That... Is a hilarious and good point. You could seal the stations like they do on the Elizabeth line but it's still a stupid idea. I just got back from London actually and am still incredibly jet lagged, for which I blame my suggestion
Oh, don't apologize. I cackled at the thought - what a commute! And for a way to cool off after being baked in the tube like a jacket potato, I can hardly think what'd work better.
Maybe something less extreme like a skirt that sits around the wheels and track and traps the hot air off the brakes. The regenerative braking mentioned in the article makes this easier as you can dispute the heat anywhere in the train you like, for instance some large dedicated heat sink car instead of the air in the tunnel
The Victoria line trains only stop briefly at the stations and are underground the entire time. For other lines TfL has air conditioning systems that capture heat during the underground sections and then dump it in the open-air parts, but that won't work for the Victoria line.
