Can leaving a mobile phone switched on while driving be dangerous?

Correct answer

Yes, the sound of an incoming call may startle the driver.

Leaving a mobile phone switched on while driving can be dangerous, mainly because the sound of an incoming call or notification may startle the driver. These distractions are risk factors because they can: Divert the driver's attention: even a brief moment of distraction at the wheel may be enough to increase the risk of an accident. Cause an involuntary reaction: the unexpected sound of an incoming call may startle the driver, which could lead to dangerous manoeuvres. If it is necessary to answer a call while driving, ideally this should be done using a hands-free device; even so, it is recommended to tell the person calling that you are driving and to limit the conversation to what is essential.