Holding rails are used to temporarily hold minecarts. When unpowered, they will stop any carts that go over them and hold it so it cannot be pushed off. When powered, they will boost carts in whatever direction they were going beforehand, unlike the Boarding Rail, which will launch the cart in a direction specified by the placement of the track.
There are two version of this rail: the standard cart version that is designed to grab and release a single cart, and the train version designed to grab and release entire trains. All in all, this is much the same as a vanilla powered rail.
|Cart Version:||Train Version:|