Multi-car pile-ups eliminated in Lethbridge where variable speed signs installed

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http://i.cbc.ca/1.3347317.1450216511!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_460/variable-speed-limit-sign.jpg The city installed several electronic signs and message boards that can be changed, wirelessly, in a matter of seconds, on a busy stretch of road last year.


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