Speaking of this, when I see metro/subway systems in Asia, I think about how they decide to hard-code vs. have dynamic displays for the in-car maps and station

Speaking of this, when I see metro/subway systems in Asia, I think about how they decide to hard-code vs. have dynamic displays for the in-car maps and station announcements. You know, because their subway systems actually grow and change over there, during the course of a few years.