Balloon loop
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![](http://upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Platforms_Olympic_Park_Sydney.svg/220px-Platforms_Olympic_Park_Sydney.svg.png)
A balloon loop allows a train to reverse direction without having to shunt or stop. Balloon loops can be useful for passenger trains, and unit freight trains, such as coal trains.
A balloon loop allows a train to reverse direction without having to shunt or stop. Balloon loops can be useful for passenger trains, and unit freight trains, such as coal trains.