First this name is Train Fever. So sure its main focus on trains, but they have added trams. It would be way better if they added subway or light-rail from the start and not trams 🙂 But since trams have been chosen,.. the ability to build trams as light rail would be very right.
Also! I miss roundabouts. Traffic lights? Essential things. Avenues is only one of many things, but they would help the traffic flow in the cities of this game for sure.
I hope that the developers fix this. Please.