Super Cruise drivers more likely to drive distracted than Autopilot, ProPILOT – IIHS

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GM Super Cruise drivers are the most likely to engage in distracted driving behaviors while using partial-automated driving software when compared to Tesla Autopilot and Nissan ProPILOT drivers, according to a new study by IIHS.

The study was based on a survey of drivers who were asked to self report on which driving activities they had performed and felt safe performing while using partially-automated driving software. All three groups reported a higher likelihood to engage in distracted driving tasks while partial automation systems were turned on. Other drive assist systems were not covered in this survey.

Nissan ProPILOT drivers were statistically the least likely to engage in distracted driving tasks, and Super Cruise drivers were most likely on average, though Tesla Autopilot users were more likely to engage in some tasks than Super Cruise drivers were. Super Cruise drivers were the mostly likely to say they were “comfortable treating their systems as self-driving” (53%, compared to 42% for Autopilot and 12% for ProPILOT) when none of the three systems are actually fully self-driving.

The study asked several questions, including comparisons of whether drivers thought certain activities were safe to do with the system on or off, whether drivers thought they were better at certain activities with the systems turned on, and so on. Here we’ll reproduce a table showing which activities drivers reported doing more often with the system turned on, but for other results you’ll have to click through to the study.

Percent of drivers who do these things more often with system on: GM Super Cruise Nissan ProPILOT Tesla Autopilot
Eating 56 18 34
Drinking 35 23 39
Texting 45 15 34
Using phone apps 8 9 23
Watching phone videos 3 5 20
Using laptop/tablet 6 5 18
Talking on cellphone 48 17 33
Bluetooth phonecall 42 30 45
Talking to passengers 47 29 43
Sleeping 2 3 10
Hairbrush/makeup/grooming 11 5 18
Reading book/paper 2 2 16
Hands off wheel (few seconds) 47 15 41
Hands off wheel (more than a few seconds) 35 6 46
Looking at scenery 63 29 47
Looking away from road (more than a few seconds) 58 19 39

IIHS mentions that this is still early data – it was based on self reporting and is colored by the differing demographics of owners that use these three systems based on the models available that are equipped with them. Tesla and Super Cruise have more male audiences, and Super Cruise tends towards older drivers while Tesla appeals to younger ones (with Nissan having broader appeal). ProPILOT assist users reported using their system more often than Tesla and Super Cruise users.

These demographic reasons could explain why younger and more tech-savvy Autopilot users are more likely to use peripheral devices – phone apps and laptops – than older Super Cruise users.

Most drivers had experienced “attention reminders,” warnings by the system to pay more attention to the road or return their hands to the steering wheel. While some considered these reminders an annoyance, most considered them helpful and said they increase safety of the system. IIHS says this broad consumer acceptance of reminders suggests that distraction reminder systems could be added to more cars without partial automation, as distracted driving is a safety issue regardless of vehicle technology.

Most drivers had also experienced unexpected behavior by the system which required driver intervention, with Autopilot drivers much more likely to experience this unexpected behavior. ProPILOT and Autopilot users were more likely to have had their hands on the wheel when these interventions were needed, and Super Cruise drivers were less likely to have their hands on the wheel (Super Cruise is marketed as a “hands free” system, but the others require occasional steering input).

IIHS cautions drivers to be aware of the limitations of partial driving automated systems and not to exceed those limits. It also calls for more research into driving behaviors while using these systems to better understand whether drivers are using them appropriately and how consumers can be better educated about their capabilities.

Source: electrek

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