19-04-2014, 01:24 PM
(19-04-2014, 06:57 AM)asrisaku Wrote: 365(M/W/C)
AC, AD, AE, BX, BV I thought about track flank when a train overruns. Should I delete them?
Warner route will be put a note to step up to main.
Overun detection and protection:
There are a number of ways this might be tackled, and indeed adding appropriate tracks clear is one of them. I must admit that I decided not to include any SPAD protection at all in the exam owing to time pressure. [The very latest standard is for there to be no SPAD protection in the Interlocking but include it in the IECC instead, although that is not yet provided for in IECC.]. What I would use at work (current resignalling schemes) is a bit more complex so if you do include something, what you have done is a good option. I would suggest using a format such as [AC, AD, AE, BX, BV]#1 with #1 for overrun protection. You need to consider trains going the other direction, e.g. a train on BV heading towards 348 on the up branch.
Quote:371D(S)
382A(S) not the opposing route because of 238N. Am I right?
A train on R382A calls P234N; then R371D requires P234R.
Quote:I don't understand a note "Preset by..." Can u explain more?
Preset Signals:
Typically the control tables I've worked with cross reference so R365A(M/W/C) notes "Presets 371A" and R371A notes "Preset by R365A(M/W/C)" and so on.