THE 'hamburger' redesign of Oxford's Green Road roundabout has won an award for innovation.

Oxfordshire Highways picked up an engineering excellence accolade in the Major Projects category of the Institution of Civil Engineers (ICE) Awards.

The project was praised for its success in cutting queues at the notoriously busy junction. It was completed in late 2006 and is known as the hamburger because traffic cuts through the centre of the roundabout.