Here are some documents which may make interesting background reading.

Linux - this page tells you how to get SimSig running on Linux machines.

Network Rail - about how Railtrack, and now Network Rail, used SimSig for signaller traning and assessment, and how SimSig’s little brother, TRESIM, is used today.

Swindon B - about the real life Swindon B IECC with photos and a description of what you see.

Fun Facts - just a little set of statistics and interesting facts for you to digest and then immediately forget!