It sounds like science...

It sounds like science fiction, but computer software giant Microsoft has taken out a patent on the idea. What"s more, inventors reckon this new method of directing drivers would cause less of a distraction, therefore making it safer.

A paragraph in the patent document, seen by Auto Express, said: "This approach, as opposed to watching a map, looking at turn arrows or listening to audible instructions, reduces the cognitive load on the driver. It is a simple and direct method of communicating the desired path." The paperwork also claims the new system would be easier to use, while the lack of voice commands means there would be no issue with language barriers. So how would it work? An in-car computer would employ satellite positioning technology and object sensors - similar to those seen on adaptive cruise control systems - to work out where the "ghost car" should be projected.

It would be designed to follow the route on the correct side of the road and travel in gaps in the traffic, just like a real vehicle. The driver would be alerted to upcoming manoeuvres because the indicators or brake lights would illuminate. At higher speeds, the car would be positioned further ahead, to give more time to react to any changes in direction.

As with current sat-nav systems, the user will be able to adjust the set-up for their own preferences. These will include the colour and look of the "ghost car", which will be visible only to the driver. A Microsoft spokesman remained tight-lipped about if and when the new technology will appear.