Posted by Steve Larson on August 18, 2016 
Fascinating photo, Georg. Looks similar to model RR recently viewed. Love it.
Posted by Peter G. Chase on August 18, 2016 
"the old one will be converted to a security tunnel." Does that mean it will have cross-connections to the new tunnel, or will it be used for some other type of security?
Posted by Felix Brun on August 19, 2016 
@Peter Yes it will be used for evacuation in case of fire. In German there is no differentiation between safety and security, thus the confusion. Regards Felix
Posted by Georg TrĂ¼b on August 20, 2016 
Yes, felix explained it right. The right word is safety tunnel. There will be 12 connections between the tunnels and the safety tunnel will have light overpressure.
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