Northbridge Tunnel warning system

The Northbridge tunnel has an emergency traffic warning system – and it works!

Driving home on Friday after work, I was enjoying the amazing guitar talents of John Mayer on CD.  But I saw these lit up signs in the tunnel saying, “Turn On Radio”.   And so I did.  Nothing unusual – normal FM radio station, but every 1 minute or so, there was an announcement by a seriously bored sounding, monotonous male voice advising motorists about the Freeway crash and traffic hold up.

What a cool device to takeover all the radio waves at once.  Imagine what pranks could be had (though I’m sure with serious consequences!)

With the launch of digital radio last week, I wonder if it works on digital stations too?

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