Tuesday, 27 January 2009

zone of quiet

zone of quiet
Originally uploaded by serlingrod
Found this on Flickr - an unusual approach to trying to reduce noise in cities. In my view highly unlikely to work, given that road (safety) signs are regularly ignored. Still, it does at least indicate intent and raise awareness, much like the 20 mph signs to be introduced in Bristol in the next year or so.

There is some evidence from Austria that variable speed limit signs based on dynamically measured noise levels have a small effect on noise (1 - 2 dB reduction)

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