What is the difference in collision risk between hands-free and handheld phone use while driving?

The correct understanding is that both hands-free and handheld phone use while driving pose significant risks, showing that their collision risk levels are comparable. Even though hands-free devices allow drivers to keep their hands on the wheel, they still distract the driver mentally. Cognitive distractions, such as engaging in a conversation on the phone, can impair a driver’s focus on the road and processing of critical visual information, similar to what happens when using a handheld device.

Studies indicate that the level of distraction caused by phone conversations can remain consistent regardless of whether the device is hands-free or handheld. Therefore, while the modes of interaction differ, the overall impact on driving safety remains largely equivalent. This highlights the importance of understanding that any form of phone use, regardless of being hands-free or handheld, can compromise driving performance and increase the likelihood of collisions.