Alextma
PZB: As it is written on the blog, it work as it works, because the in game signals know no more. The ingame signals can send two messages: 1000hz and 2000hz, and that's all. No speed limit or distance information, because it's not implemented, or it's not possible to be implemented with the current TS2012 engine.
wath do you mean with distances ? if i understand you mean the distances that activate speed restriction. no a signal dont send that but an train cabin calculates that. and yes thats possible inside railworks and an almost full warning system can be created. if your able to know how you can calculate this than your able to realize this. only problem is the 500 hz so your not able to start an 500 hz warning program on the basic signals