Pre-signal exits are signals leading away from the pre-signal block, and with NPF disabled, should normally be two-way signals, so as to give the train a choice.

• 预处理号区块跟从于预处理出口信号(Pre-signalexitsaresignalsleadingawayfromthepre-signalblock)。而在[[Newglobalpathfinding|NPF]](Newglobalpathfinding，新通用寻路算法)无作用时，预处理出口信号应正常作双路信号使用以提供列车选择的机会。