NEW guidelines from the General Medical Council say doctors should inform the DVLA if a patient is medically unfit to drive.

It's a decision that is most likely to affect elderly drivers. Between 1975 and 2010, the number of registered drivers in the UK over the age of 70 more than quadrupled. 

According to statistics, by the end of March 2015 there were approximately 4.3 million licence holders aged 70-plus on our roads.

Doctors may find themselves in a difficult position if their patients fail to heed their advice. Some have expressed worries this might lead to punishment of medical staff.

However, chief executive of the GMC, Niall Dickson, said: "We are clear that doctors carrying out their duty will not face any sanction.

"This new guidance makes clear that we will support those who are faced with these difficult decisions."

There are a variety of potential obstacles for elderly drivers that younger adults may not encounter. Ailments affecting physical movement, mental reaction times and also driving confidence are key issues.

Road safety charity Brake has supported the decision, saying that the move will clarify the position of both the doctor and the patient to improve safety.

The charity's director of communications and campaigns, Gary Rae, said: "This is a positive move by the GMC, it will clarify the responsibilities and duties of both doctor and patient.

"If they fail to do so, they will pose a continuing risk to themselves and other road users."

There are fears that, although doctors may not face punishment, their patients may feel uncomfortable with confidential medical information being passed on to the DVLA. 

As it stands, doctors do not require their patient's consent to pass on their information to the DVLA.

It is also important that any older drivers who may face such problems now or in the future are aware of these guidelines and how to remain safe and well.

Caroline Abrahams, charity director for Age UK, said that it is not age that should be judged by doctors and patients but ability alone.

She said: "It is important that doctors and patients work together on this issue.

"Ability, not age, should determine how safe someone is on the road and when it comes to driving everyone is responsible, at any age."