When people get in their cars they often but the mobile phone on silent but there I pulled away and so on because they want to focus their attention on the road but, it's possible that the rule itself is a distraction. A growing number of road safety experts are worried about advertisement billboards sit along the side of the road. These days they don't just contain a poster, they contain bright colourful ads that moving change and these experts believe they could distract drivers and even cause accidents. Of course, advertising agency disagree and point out that there hasn't actually been any research that can support this claim. They say that although the ads may move they don't contain any video and of course there are all the road distractions that could cause accidents. So until, until we see the results of carefully planned research, we shouldn't jump to conclusions but, it does appear that research is needed in order to decide whether ads are putting people in danger or not.