[cabotp]

I could be wrong here.

But aren't aerial trams. Designed so that the cars when they get to the top don't loop around. And they stay on the same side the entire time. Which is why you can only ever have two cars. One on left side the other on the right side. And they are designed to move in the opposite direction to each other.

While a gondola is setup to loop at the ends. Thus allowing you to add more cars dependent on weight capacity of the cables and towers. And they can run in a continous motion. Whether that is clockwise or counter clockwise.

I'd prefer the gondola style. Even though the capacity of the cars is less than a tram. They provide a higher frequency.