Small details that would make operations better and more realistic. "Rearview mirrors" they need to open up and see the rear of the train. "a Conductor" that stands outside a car and steps back in and closes the doors automatically. you can also see the Conductor in the rearview mirror. "the choice of air break equipment" having a choice of air breaks. Basically using Lap position is fairly older way to Stop a Train, The system used today is more strait forward. "Radio use and chatter" "Cars crossing the crossings" "Defect Detector" "Flags for Track Repair " "rush hour traffic a more packed platform" these are just make the game more realistic, I do however understand that games might not run smoothly with some details motioned here. This game is Great super Detailed looking forward to see were this game goes also looking for a Passenger Chicago line. Just Saying