Weak traffic and off-mark products led to slower than expected sales in May, when wet, chilly weather may have provided too weak inspiration for consumers to start shopping for summer items, analysts at RBC Capital Markets say.

FORBES: May Sales Show Tighter Times Ahead For Retailers

And here's a novel traffic scheme, a roundabout to mark a bend in a road.

BBC: News Online

It also called for a "traffic light" system in stores to mark out healthy and unhealthy foods, and for annual fat tests for children.

BBC: NEWS | UK | Wales | Cookery lessons 'to cut obesity'