Only major changes are noted
On April 22nd, 2001 the new signal rule book was put into force (at least at the Swiss federal railways). For this reason I published at the same time the new version of my Swiss signal web site (which I planned independently from this fact).
Published the first version.
(Last Update: 02.09.2005)
This website is published under a creative commons license.
Furthermore, use of the contents in the wikipedia is explicitely allowed.
Errors and Omissions excepted!