Traffic and TravelWidow's cardboard coffin protest to drive home smart motorway concerns to MPsTHE widow of a Rotherham man who died on a smart motorway was among protesters carrying cardboard coffins as they campaigned to scrap the controversial road system.By Michael UptonPublished 4th Nov 2021, 09:27 GMTUpdated 4th Nov 2021, 10:41 GMT Related topics:MPsRotherham