The exit signal N4 of Langerwehe (on Cologne-Aachen) shows Ks1 (proceed)
together with an Zs3 "8" (speed restriction of 80 km/h). The yellow triangle
says that this signal is also a distant signal (for a block signal), so Ks1
also means "expect proceed" in this case. Picture taken on 19 May 2004.
<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>)