The number of routes is bounded by the number of drivers you hire, all of whom draw an annual salary, and who operate rolling stock that is bought and fueled mu

The number of routes is bounded by the number of drivers you hire, all of whom draw an annual salary, and who operate rolling stock that is bought and fueled multiple times on a daily basis. For each of those you have to pay a voice artist to say the name of the service N times for the N types of notable announcement. Once a season. It’s nothing. As well as that, factor in the number of passengers who will listen to these announcements, and think about the impact getting the announcement perfect instead of just done. It really is the sort of thing worth getting right. But yes, you will probably have one naive engineer in the middle of all this saying “repetition is Bad(tm) so let’s factor it apart and build it programmatically!” oblivious to the whole system.