One of four smaller cross connections from the parallel tunnel to the station in the main tunnel. The lining on the walls shall improve the acoustics for the loudspeaker announcements. Emergency-stop station Sedrun. Switzerland, Sep 15, 2016. (20/26)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/70981241@N00">Kecko</a>
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