I think, pre-signals aren’t needed at all, at best as a cosmetic feature.
If you think over it, pre-signals were introduced because trains became faster and couldn’t stop in time as saw as they saw a “Stop” signalling Main Signal. So pre signals got introduced, so RL locomotive drivers (I’m not a native english speaker, if the job has a better name in English, I’d be happy if you tell me) could stop/slow down in time.
Since we’re not dealing with RL locomotive drivers but instead with AI driven locomotives, they always know in time, what the mainsignal shows for them, so pre signals as functional signals are unnecessary.
If you implement a mechanic, that AI locomotives don’t register main signals until they actually see them and thus could risk driving over a “Stop”-Signal, they would make sense, but otherwise not.
- This reply was modified 7 years, 4 months ago by Azrael.