Wouldn’t it be cool if the AI trains could sometimes be behind schedule so it could have an impact on the signals? It happens sometimes in real life especially when there is a lot of snow, extreme weather, rush hour ect. Now when I play a timetable the signals are always the same but it would be much more fun and challenging if the signals could be different from time to time
It's been discussed and I think there was mention they were looking at doing something with the idea.
This would fall on the random events thing most of the playerbase wants and I think it would be a good idea. Driving with an always green singal gets boring after a while