outingbbc travel news motorwaysShare on FacebookShare on Twitter120IMAGESMotorways to trial 60mph limits to cut pollutionHow smart are Highways England's smart motorways?How smart are Highways England's smart motorways?Motorway roadworks speed limit to be raised in EnglandUK's smart motorways to be reviewed after huge rise in near-misses BBCSmart motorways catch more than 1,000 speeding drivers a week
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