t is a rail for italling an island platform in a double track layout. There are single-opening type and double-opening type. You can also create a pseudo double track slope curve layout. See the YouTube video for more : 是為了在復(fù)線的布局上設(shè)置島式站臺(tái)的軌道。 有單開(kāi)類(lèi)型和雙開(kāi)類(lèi)型。 也可以模擬地將坡曲線軌道復(fù)線化。 詳情請(qǐng)參照YouTube的視頻。