Lockdown Track

The Lockdown Track is a special type of Minecart track added by the Railcraft mod. This track is used to make carts come to a complete stop. When this track is given a positive redstone signal it will act as a normal track. When this track is given a negative redstone signal, or no redstone signal, it will stop any cart that passes over it.

As of Railcraft version 9.0.0.0 for Minecraft 1.7.2, the Boarding Track was merged with the Holding Track and the Boarding Track into the Locking Track.