A team at Newcastle University is developing new technology aimed at helping older drivers stay on the road.
Many give up because their reaction times have slowed down – but this means they become more isolated and inactive.
One of the Intelligent Transport team’s developments is a “Granny-Nav” which identifies the safest route, such as avoiding right turns.
The Age UK charity said such developments could help the elderly maintain their independence.
Many avoid turning right because they do not feel confident about judging the speed of oncoming traffic.
It also uses pictures of local landmarks, such as a post box or public house, as turning cues for when people are driving in unfamiliar places.
(Read more and watch video at BBC News – Hi-tech car aid for older drivers)