It's like the dual flumes of White Water Landing at Cedar Point. One train goes one way, the next the other. There appears to be a rotating track section for this, similar to the one for Big Bad Wolf's transfer.
What makes this a better design is that there is never idle time for any train. For example, with Millennium Force, the train in the exit station drains, and then it sits empty for a while. On X-Flight, you've got unloading followed by immediate loading on the same train, with no pause in between.
However, there is a pretty huge downside to this design, and it's one that I fear the park will have trouble with given its reputation for stacking trains. In order for this system to work, you've got to meet the interval in both stations every time. If you don't, the third train gets stopped on the brake run. The reason that's bad is that it will take a while to roll through that long turn into a station from a dead stop. Imagine if that were to happen even a few times an hour. It would noticeably hurt capacity.
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Jeff
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