This article comes from WeChat public account “Tiger Sniff APP” (ID: huxiu_com), author Hu Yang, the original The title “Car” iPad “is upset? “It is more dangerous than drunk driving and drug driving.”
A UK road safety research report pointed out that the use of on-board touch screens while driving increases the risk of drinking and drug driving .
Touch screen may increase the danger. At first glance, it sounds like a well-known nonsense, but there is still no quantified result. Let us know how much it increases the danger. British charity road research organization IAM RoadSmart, in conjunction with the FIA, Rees Jeffreys Road Foundation, commissioned the British Transport Research Laboratory TRL to conduct this research.
The results are very pessimistic. In-vehicle large-size touch screen, a new technology configuration that is being pushed by car manufacturers and technology giants, may not actually be safe with your mobile phone directly -although regulations usually only penalize mobile phones while driving , But it does not restrict the use of car touch screen devices.
The key data is the response time of the driver to sudden road conditions when he is performing various other operations while driving. For a normal driver, the typical reaction time is about 1 second. When the driver’s drinking reaches the British standard (lower limit) for drinking and driving, the reaction time will increase by 12%. Drivers who take marijuana need 21% longer response time than normal.
When using CarPlay and AndroidAuto with a touch screen, the driver ’s response time to road conditions will increase by up to 57% and 53%, respectively . Even with voice interactions (such as Siri), CarPlay and AndroidAuto increase driver response time by 36% and 30%, respectively-still higher than the effects of drinking and marijuana use.
In addition-if you are curious-using a Bluetooth device to talk will increase your response time by 27%; driving while texting and typing will increase the response time by 35%; using a mobile phone directly is the worst, The response time will increase by 46%. Of course, this is still more than touch screen operation CarPlay and AndroidAuto.
More importantly, the response delay caused by these touch screen operations is actually far more than the driver ’sSubjective expectations .
Testers were required to perform three operations simultaneously while driving: switching audio on Spotify and BBC radio, switching navigation paths between highways and a restaurant or gas station, reading text and entering text, and three Each operation will be tested through two operations: speech recognition and touch screen.
As a result, regardless of CarPlay or AndroidAuto, The total length of time that the driver ’s eyes have left the road for more than 12 seconds during the completion of an operation has exceeded the NHTSA (United States Highway Traffic Safety Administration) Developed driving code guidance. The driver’s subjective view is that his sight has been occupied for only 5 seconds. When using voice to operate both vehicle systems, the situation is better, and the total line of sight is within the NHTSA specification.
▲ Android Auto, currently unavailable in China
The conclusion of the report reads, “The test data clearly shows that driving AndroidAuto and CarPlay at the same time will increase the driver’s attention and affect the attention resources required by the driver. Even if the driver decreases Speed to handle these increased demands for attention is not enough to make up for the loss of attention required for driving.
“When interacting with these in-vehicle systems, especially when operating with a touch screen, the ability to control the vehicle’s ability to maintain the lane position and keep the distance ahead is significantly reduced.” Research data show that using AndroidAuto and CarPlay touchscreens When navigating, the lane will deviate by about 0.5 meters.
Also, drivingOf the various operations performed by the operator using the touch screen, the audio operation is the one that has the most negative impact on road surface attention. At simulated highway speeds, the resulting increased response time results in an increase in stopping distance of 4 to 5 vehicle lengths (18.7 to 24.9 meters). The impact of touchscreen audio operations on driver’s attention is even more serious than texting while driving.
For the results of such a study, I AM RoadSmart calls on the industry and government to conduct public testing and certification of in-vehicle entertainment systems and develop a unified standard in an effort to make them useful to drivers Minimize attention disturbance.
While IAM RoadSmart’s research used only Apple CarPlay and Google’s AndroidAuto, it is clear that the findings are not just applicable and targeted at both. In contrast, CarPlay and AndroidAuto have established a standardized operating interface and operating experience between different brands and models, and the system’s response speed and control sensitivity are relatively good. It is conceivable that the results of this study would only be magnified if it was the crappy, awkward, and difficult-to-use in-vehicle systems made by automakers themselves.
Since the 17-inch central touch screen that Tesla shocked the world many years ago, the large-sized and full-touch screen of the car’s central control screen has become a trend, especially for domestic new car brands and independent brands. On the updated Model 3, even functions such as seat adjustment are integrated in the center control screen. In the eyes of many people who admire electric vehicles, smart cars, and Internet cars, traditional car brands, especially German brands, have horizontal screens, limited large sizes, and retained physical buttons and knobs, just like Nokia ’s in 2007. Be conservative.
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However, the safety of the touch screen during driving is obviously far less than the physical keys. Even if some people claim that they can proficiently operate large-size full-touch screens in vehicles after a long habit, they do not have an accurate and scientific understanding of the degree of their attention off the road.
In the beginning, as the size of on-board screens became larger—of course, today they have become smaller—automakers use traditional multi-button operations with occasional small knobs, such as volume knobs. Then, with the increase of the functions carried by the in-vehicle system, the interior of the car in the 1990s has gradually become like a cloud. At the beginning of the 21st century, BMW introduced the epoch-making iDrive system. For the first time, a large knob with 7-way operation such as rotation, dialing and pressing was used to interactively control all functions through the screen. However, the original iDrive integration was too high after all, so BMW added more shortcut keys to the iDrive. Later the Audi MMI and Mercedes-Benz COMAND also experienced similar developments. The large knob is centered + a few shortcut keys are supplemented, which once became the most advanced vehicle interaction method.
, because the physical interaction allows blind operation and blind search, the driver can choose to use less attention , Longer time, more patience to perform an operation. In a full touch screen system, because of the touch screen operation, you can’t use your hand to find the appropriate control position-otherwise it will causeBy accident, the driver almost has to focus on the screen for a moment. </ p></p>
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So when Audi turned its own knob system MMI into a full touch screen, a unique feature was added: Although the touch screen is called a touch screen, touching the screen with a finger does not cause the system to respond, but requires the finger to press hard. Only when you feel the strength will the system confirm the operation. This method is obviously cumbersome, inefficient and laborious, but it makes the driver no longer need to concentrate on the screen to prevent accidental touch during the process of positioning the touch screen controls with his fingers. As long as you are willing to spend more time and reduce the attention distracted to the screen, the safety of the operation will increase accordingly, or the negative impact of the operation on safety will not increase too much.
Of course, Tesla can say that due to the high penetration rate of its AutoPilot system and its highly distracting large-size full-touch screen, to some extent, it will not increase too much due to the driver assistance system and safety assistance system. risk. However, many other popular brands do not have this “bottom measure”, and it is likely that they have not considered the risk of distracting the large touch screen. At least until a truly reliable autonomous driving system becomes widespread, more caution should be given to large touchscreens with full touchscreen operation.
Large-size full-touch screens are an important tool for many auto makers to increase their premiums. However, when relatively reliable experimental data has been pointed out to its risks in terms of safety, it may be time to reflect on this: Since driving a mobile phone is illegal , Then zoom in and fix the full touch screen phone, isn’t it dangerous?