Plasser & Theurer 08-475 Unimat 4S ballast tamper of Kölngleis
working in the western switch area of the new overtaking station Dorsfeld (on
Cologne-Aachen) on 8 August 2001. While the main tamping device is hidden
behind the workers, some other interesting things can be seen. Note the thing
with the two wheels that is hung to the operator cab, i think this is intended
to follow the other rail of a switch to determine it's position. Left to the
cab is another device that is working on the trackbed and a wheelset that might
be for measuring purposes. I'm not an engineer, but i can imagine that tamping
a switch is quite complicated.
<p>
Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>