24-03-2010, 08:08 PM
(24-03-2010, 04:00 PM)Archie Wrote: Many thanks for the reply how do you go about calculating headway?
That is something that is well documented in several texts and course notes and something to which there is not a simple answer. I suggest you avail yourself of something like "Railway Signalling" (ISBN 0713627247) which I think is available from the IRSE to get a grounding. If you have specific items that you need clarification on, please feel free to ask for clarification.