The Boarding Track is a special type of minecart track added by the Railcraft mod. This track is similar to a normal booster track. When powered with a redstone signal these tracks will push the cart faster in the direction it is facing. If a cart moves across one of these tracks backwards when it is powered then it will either slow down or come to a complete stop. An unpowered Boarding Track will not let carts move past them at all in any direction. The arrow in the texture can be used to determine the direction that the track is facing. The direction can be changed by using a Crowbar on the track.