OP had mixed two commercials?
From The Lost Media Wiki
I've looked around a bit, and I passed across two videos that might match or reveal something. It may be possible that the original poster had remembered two commerical at the same time. Reading the description of the first video, the uploader seems to have really done a bit of research into it. https://youtu.be/LN7X1kGspgg
As for the railroad side, I believe they may have possibly remembered this one after? It doesn't seem to come from AC Japan but rather Japan Railways/JR Group https://youtube.com/shorts/Wr1sNKLeF4Q?feature=share