Hi,
I would like to see a realistic simulation of trolley voltage added. Right now it's holding steady at 3.3 kV, but in reality it changes all the time. It's around 2.8 kV, but, for example, if a heavy freight train occupies the same section, it can get to 2.5 kV or less.
This puts a new element into the game. When I start moving with a heavier train, I have to be careful to not take too much voltage from the trolley. I think Traxx (and maybe Dragon) would even shut off the main switch if the voltage is too low.
Also, the whole line would be divided into several blocks with different voltages (like in reality). Other players would have to react, how much I take from the trolley, because if the trolley is at low voltage, the heavy trains won't start off.
Of course, it would have to be balanced to make the game playable and fun.