The Federal Highway Administration updated its manual for traffic officials, which reins it but doesn’t kill entirely the funny scrolling ... the changeable message signs. The Dayton Daily ...

Scientists at Oxford University found that no-smoking signs have an “ironic effect” on smokers, driving them to react and think of tobacco, the researchers said. “You get ironic effects when ...

Those silly, creative signs you've grown used to seeing on highways ... users Give adequate time for proper response The quirky, funny messages did not meet the criteria of conveying a clear ...