Roadside signs that frown at speeding drivers are being tested outside schools in Medway.
Drivers who obey the speed limit are greeted with a smiley face. The images are instantly understood by adults and children - a powerful bit of psychology, say road safety chiefs.
John Ryall spoke to Medway Council's director of regeneration Robin Cooper and Chatham head teacher Gillian Hill.
More top news
Simon's Blog - Beginnings & Endings
Thursday night's weather for the west of the region
Thursday night's weather for the east of the region