Compact minecart station (6x2x5)
This is based off sethbling's super flat minecart station design but it's not super flat though. This is ultra compact and uses a cactus to break the minecart instead of lava.
Advantages of using cactus
1.It makes the design compact
2.Does not require any redstone to use the cactus (Lava is redstone controlled)
3.Cactus instantly destroys minecarts
4.Cactus hurts you slowly (Lava kills quickly)
5.A small redstone malfunction could cause the lava to overflow and destroy everything (Cactus is not redstone controlled)
6.You need to be heading at a certain speed if your using lava (cactus doesn't require a certain speed)
Disadvantages of using cactus
1.The design is not superflat
2.The cactus is always exposed, touching the cactus for too long my lead to serious injury or death