Research result that using an in-vehicle system that plays road information and music while driving `` slows reaction than drunk driving ''



An in- vehicle infotainment system that provides information such as road guidance and entertainment such as car audio while driving a car can obtain the necessary information without releasing your hands from the steering wheel and enjoy distractions such as music , Is generally considered to reduce the risk of traffic accidents. However, a study published by IAM RoadSmart, a charity in the UK that works to improve car safety, said that using an in-vehicle infotainment system while driving could be It may be more dangerous than driving. '

Interacting with Android Auto and Apple CarPlay when driving: The effect on driver performance
(PDF file)

IAM RoadSmart Infotainment Research 2020

Hey Siri! Are the latest vehicle infotainment systems reducing road safety more than cannabis or alcohol?!-are-the-latest-vehicle-infotainment-systems-reducing-road-safety -more-than-cannabis-or-alcohol

Car audio systems pose greater dangers than texting, pot

Using an in-vehicle infotainment system such as

Android Auto developed by Google and Apple CarPlay developed by Apple , get information such as car navigation system and traffic information while driving, enjoy music such as car radio and Spotify There are many people who do. Therefore, IAM RoadSmart commissioned a study from the Transport Research Laboratory to evaluate the safety of the in-vehicle infotainment system.

In a test conducted by the Road Traffic Research Institute, three test runs were performed using the same simulated test course to evaluate the effect of using Android Auto and Apple CarPlay on driving. In the first run, the driver operates as usual without using the in-vehicle infotainment system, in the second run, the driver drives using the in-vehicle infotainment system with voice control, and in the third run, the driver operates the touch panel. Driving while using the in-vehicle infotainment system.

The results showed that using an in-vehicle infotainment system while driving could distract the driver, even when operating with voice control, and significantly reduce the time required to respond to an emergency. This delay was greater than drunk driving or driving with cannabis.

The following graph shows `` test driving performed by the Road Traffic Research Institute '' `` drinking driving '' `` driving with cannabis '' `` driving with hands-free calling '' `` Enter a text message with a smartphone This shows changes in the reaction time of the driver in 'while driving' and 'driving while holding a smartphone by hand and talking'. It has been shown that drunk driving delays reaction time by 12%, cannabis use by 21%, and hands-free calling by 27% compared to normal drivers, but in-car infotain such as Android Auto and Apple CarPlay You can see that there is a longer reaction time delay when using the mentoring system.

In addition, it seems that the 'drunken driving' state in the graph refers to the state of 'blood alcohol concentration 0.08%' of the reference value judged as drunk driving in the United States etc. The standard for drunk driving in Japan is “exhaled alcohol concentration of 0.15 mg / L or more”, and when this value is converted to blood alcohol concentration, it becomes “blood alcohol concentration 0.03%”.

When using an in-vehicle infotainment system with voice control, the response is delayed enough to be comparable to driving while entering a text message with a smartphone, and when using an in-vehicle infotainment system with a touch panel, it is almost 5 times that when drinking and driving The reaction time seems to be slow. The driver himself realized that he was distracted by the in-vehicle infotainment system and made corrections such as deceleration, but he could not keep a certain distance from the vehicle in front, and the response was delayed or the lane Was off by up to 1.7 feet (about 50 cm).

IAM RoadSmart points out that the delay in reaction time caused by the use of an in-vehicle infotainment system is equivalent to an average motorway stopping distance of 4 to 5 cars. Also, while using the in-vehicle infotainment system, the driver takes 12 to 16 seconds to look away from the front when operating the touch panel. It was also found that the driver underestimated the time he took his eyes off the road while using the onboard infotainment system by about 5 seconds.

'Driver distraction is estimated to account for one-third of car accidents in Europe,' said Neil Greig, director of policy and research at IAM RoadSmart. It raises serious concerns about the development and use of in-vehicle infotainment systems. Anything that distracts the driver's eyes and attention from the road is bad for road safety. '

According to Greig, 'most of the drivers participating in the survey report that they use the touch panel instead of voice control in actual driving. As the results show, touch panel operation is the driver's attention Voice control is safer when using an in-vehicle infotainment system. Also, if you must use an in-vehicle infotainment system, it is recommended that you complete all setup before starting driving and do not operate while driving.

in Software,   Ride, Posted by log1h_ik