User blog comment:Bob.cutlass2/Trains in GTA V/@comment-4239411-20120814042405

There have to be rail systems in GTA V. The map is going to be huge. If they exclude a subway or any other form of railways it wouldn't be as realistic as they are aiming for. What I'm guessing is that we will see two railways in GTA V, one for the city and one for the countryside. We might even see a tram system which could be the reason for those power lines