User blog comment:Wojtek280/Second and Third station/@comment-5596770-20130915141602

The Second Station provides additional street space to place buildings, in order to increase your primary station's income. The Second Station does not provide additional Train Slots, nor can you dispatch trains from the Second Station.

The Train Yard Tower may be placed in the Second Station, which redirects Express Trains to the Second Station and reduces the amount of train traffic in your Primary Station.

The Switch Outpost may be placed in the Second Station, which redirects International Trains to the Second Station and reduces the amount of train traffic in your Primary Station.