Thanks for posting!
Yes, there will be traffic lights at crossings with a lot of traffic.
We did not consider your idea (favor public transportation) so far. I agree, it would be a nice feature, and it’s also fun from a game-play perspective. In addition, I believe the implementation effort is not too high. So, we really consider to add this feature to the game!
Regarding the special lights for public transportation, I think this is more a micro-simulation feature and not really of interest for game-play.
