James C. <james_ccj@optusnet.com.au> wrote in article <3aec085c$0$25466$7f31c96c@news01.syd.optusnet.com.au>... > You need signals to tell the trams on the oppsite direction that there's > something coming their way. Not if, say, the middle 'express' track is used for citybound only in the AM and outbound only in the PM. Traffic lights may need some re-configuration though. BT