Earlier quoted context omitted.
The heat generated by the LED ads is tiny compared to the heat generated by the actual trains and I think they handled that one very well.
Generally agreed. In DC we had a similar change over. My complaint is just that it is incredibly tacky. It's much brighter than ambient lighting is. Our metro system is facing a huge budget crunch (the Feds stopping COVID money, and the 2.5 states involved have been very unhelpful at providing funding). I get that advertising is an appealing revenue stream. I just wish we could do it in a way that wasn't so rambuncti…
For non locals, this is in a long walkway between access train and terminal, is lit in bright blue moving images, and plays a silly song about interest rates at high volume for the entirety of your time in the tunnel. It has cemented my desire to never do business with PenFed, for sure.