Semaphore Questions

[Tom van Peer]

    P stands for "passeer": pass by a signal and enter a block.

    V stands for "verlaat": leave a block, clear the signal.

As I remember it , this stems from train business, where tracks are
divided into blocks and only one train can be in a block at any given
time.  Nice analogy, isn't it ?  In Dutch a semaphore is a synonym for a
signal post, but I've never heard anyone working with the railways talk
about semaphores...

-- 
Tom van Peer 
Nederlands Philips Bedrijven, Dependance Nat. Lab. Building XP
Willem Alexanderlaan 7B, 5664 AN Geldrop - The Netherlands. Tel: +31-40-892334
E-mail: mcvax!philmds!nlgvax!tom  or tom at pcg.philips.nl