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January 28, 2020

 Road tunnels and technology in an operational perspective
Arild Petter Sovik, Tunntech Global News

Roadsigns for emergency messages

Written by  Nov 08, 2017

New radio broadcast technology have made it necessary to rethink how roadsigns for radio broadcast should be designed and function. 

DAB+ technology allows radio reception in the tunnels for all available DAB channels and not just for a few channels. Also, the DAB technology makes it possible to break into the broadcasts of all channels and allows the authorities to communicate with all road users, that is listening to radio in the tunnel, with both traffic information and emergency messages.

If the focus should be on the message that is broadcasted in the tunnel, the sign should be turned on when such a message is broadcasted. In addition if you use a blinking light on the top of the sign, the sign will get the necessary attention. This solution has just been decided and installed in several tunnels in Norway.

The sign are using a message icon instead of FM, in addition to the word "Radio". This gives a clear indication that there is messages on the radio, and you should turn on the radio and listen. 

Norway is the first country in the world that shut down national and regional FM broadcasting in favour of DAB technology. 

Read more about this in this article:

DAB technology in tunnels 


Last modified on Sunday, 03 December 2017 19:56
Arild Petter Sovik

Editor, Tunntech Global News

E-mail:  arild.sovik@tunntech.no
Phone:  +47 950 88 793


News coverage based on many years of experience from key positions in the industry. Former National Tunnel Manager at the road authorities (NO), senior principal development manager at a major tunnel contractor company (NO) and experience from a wide number of activities in national and international networks. 


Website: www.sovikconsulting.no
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