Drivers More Likely to Multitask When Using Partial Automation Systems

Drivers are more likely to multitask when using partial automation systems, even while adhering to the systems' attention requirements, according to new research from the Insurance Institute for Highway Safety (IIHS) and Highway Loss Data Institute (HLDI).

A summary of the research posted on IIHS and HLDI website shows that drivers were more likely to engage in non-driving activities, such as checking their phones or eating, while using Volvo’s Pilot Assist partial automation system than when driving unassisted. This tendency increased over time as drivers became more comfortable with the technology. Similarly, drivers using Tesla’s Autopilot system learned to time the system's attention reminders to avoid warnings escalating to more serious interventions, enabling them to continue engaging in distracting behaviors.

The studies highlight the need for more robust safeguards in partial automation systems to prevent misuse. Despite the systems' ability to keep the car moving down the road, slow down to avoid other vehicles, and accelerate when the way is clear, drivers are supposed to remain attentive and ready to take over at any time. However, the studies show that not all drivers adhere to this requirement.

For more information, read the IIHS and HLDI summary here.