'Screaming' traffic cones unveiled in Birmingham

The cones are similar to regular ones but have a yellow top and look like a lighthouse. The in-built alarm "screams" when the cone is struck, alerting workers to the possible danger of a vehicle coming too close to them. via Pocket http://www.bbc.co.uk/news/uk-22527383#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa