S 8431 (Au-Düren) seen near the overtaking station Dorsfeld (on
Cologne-Aachen), between the stops Sindorf and Buir, in the evening of 15 July
2006. The train consisting of two unidentified class 423 EMUs uses the leftmost
of the three tracks which is dedicated for the S-Bahn (suburban railway).
<p>
Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>
(<a href="mailto:christoph.schmitz2@post.rwth-aachen.de">christoph.schmitz2@post.rwth-aachen.de</a>)