‘9 And 3′ Is The New ’10 And 2’ Steering Wheel Rule






Years ago, we were taught to drive with our hands at the “10 and 2” positions on the steering wheel. This correlated to where the numbers on the face of a clock are located. That meant our left hand was placed at the 10 o’clock position while the right hand latched onto the wheel at the 2 o’clock slot. Steering wheels have come in all shapes and sizes but were generally much larger back in the era before the central hub was packed with an airbag, which wasn’t federally mandated until 1998.

According to the National Highway Traffic Safety Administration, both hands should still be used to grip the wheel, but not at the customary ten o’clock and two o’clock positions we’re familiar with. Instead, you should now grab the wheel, gently yet firmly with your fingers (never the palms) on the outside of the steering wheel (never inside the rim), thumbs pointed up at the now standard 9 o’clock and 3 o’clock positions. 

Folks who continue to follow that old-school rule of the road are not only showing their age but are also (technically) doing it wrong. To be fair, though, it’s hard to unlearn something that driver’s ed instructors continually drilled into our heads. Be that as it may, what we were taught has since become outdated, thanks to modern technology and constantly evolving safety features that have now forced people to change where they place their hands on the steering wheel.

It’s all in the hands

In 1956, the steering wheel found in a Chevrolet Bel Air or a Ford Fairlane was 20 inches in diameter. There was no power steering back then, so it required enormous strength and the leverage provided by the big wheel especially when it was stopped. Power steering has gone through many iterations over the decades. It was first introduced in a 1926 Pierce-Arrow but took until the 1950s for Chrysler’s version (aka “Hydraguide”) to become the model for modern power-assisted steering (PAS). 

Still, it took until the mid-1970s before most new cars sold in the U.S. came standard with the feature. Yet, steering wheels remained large, and their diameter was, in fact, very important to the overall ability to drive the car. Smaller wheels allowed for quicker reaction times, but larger ones reduced the overall effort needed to crank the wheel in whatever direction the car needed to go.

Given all the technology packed into today’s power steering, such as Electric Power Steering (EPS), the average diameter has shrunk dramatically to between 14 and 15 inches. Therefore, recommendations for hand positions have become more flexible in an effort to increase driver control and, of course, drive the vehicle safely. In fact, according to California’s Department of Motor Vehicles, when controlling the vehicle using the “Hand-to-Hand Steering (Push/Pull),” you can place your hands at either the 9 and 3 o’clock or 8 and 4 o’clock positions, even when making a turn. However, you should never cross your hands over the middle of the steering wheel.





Source link

Leave a Reply

Subscribe to Our Newsletter

Get our latest articles delivered straight to your inbox. No spam, we promise.

Recent Reviews


Researchers in South Korea developed a wearable system that uses seven smart rings to read finger and hand motions to translate American Sign Language and International Sign Language into text. The purpose is to make communicating easier between those who sign and nonsigners without needing a separate human interpreter. 

AI Atlas

According to the study, published Friday in the journal Science Advances, the system reliably recognized 100 ASL and ISL words during testing. It also performed well with users the system had not seen before, and it didn’t require recalibration for each person. Because the system detects words in sequence, it can produce sentence-level translations without extra training on grammar. 

ASL and ISL are the everyday languages of more than 72 million deaf and hard-of-hearing people. However, most hearing people do not know any words in these languages or have a very basic understanding. That gap makes certain tasks, like ordering at a restaurant or asking for help, much more difficult. 

A graphic shows two illustrated people talking in sign language, ASL and ISL. The graphic also shows the different components of the ring as well as pictures of hands modeling the rings.

A concept of how the rings work in the real world. 

American Association for the Advancement of Science (AAAS)

Existing sign language translator prototypes often rely on bulky gloves that can distract from or block natural hand movement or feel uncomfortable for the wearer, which limits real word adaption. Camera-based technologies can work well in controlled environments but are often limited to those places where a camera can be set up with a clear line of sight, the researchers wrote. 

To solve these problems, the researchers designed sensing rings for each finger that can capture precise motion and finger position while letting the hands move naturally. The rings can detect both signs that involve movement, like the words for “dance,” “fly” and “sun,” and signs that are held still, like “I” and “you.”

“These advances suggest that [the device could enable] barrier-free public translation systems for unseen users and unrestricted daily assistive interfaces,” the authors wrote in the study. 

The authors are affiliated with Yonsei University, Hankuk University of Foreign Studies and the Korea Institute of Science and Technology, among others. While the technology is still experimental, the authors wrote that the technology has the potential to ease communication difficulties. The underlying idea could also help improve controls for other systems, like virtual or augmented reality.

“Beyond sign language translation, the ring-type, wireless, and modular architecture of (wirelessly connected, ring-type sign language translators) may also be extended to other gesture-driven applications such as virtual or augmented reality control, touchless device interfaces, or rehabilitation monitoring systems where fine-grained hand movement tracking is essential,” they wrote.





Source link