Mobile phone use while driving remains widespread despite the well-documented safety risks associated with the behaviour.

Using a mobile phone behind the wheel remains one of the most common forms of distracted driving, with new research from Germany suggesting the scale of the problem is far greater than official statistics indicate.

A study conducted by Germany's automobile association, ADAC, found that mobile phone use while driving remains widespread despite the well-documented safety risks associated with the behaviour.

The findings come as road safety authorities around the world continue to grapple with the growing impact of smartphone-related distractions on crash rates.

According to ADAC, around 400 000 mobile phone offences are officially recorded in Germany every year. However, a traffic survey conducted in five major cities suggests the real number could be substantially higher.