Electric trams don't make a lot of noise, but they are still pretty big and fairly easy to see if you look. And you're supposed to look to make sure the next lane is clear before you move to it! It's a wonder how these folks ever got driver's licenses.
From the tram operators' reactions, or lack thereof, you get the idea that they encounter this sort of thing every day. After all, they stayed on their tracks and can't really do anything about drivers who insist on being hit. The only real reactions are when a pedestrian walks into the path of an oncoming tram. -via reddit