Touch screens aren’t just for laptops, smartphones and tablets.
They have also made their way into new vehicles. Computerized controls now replace traditional buttons and knobs for heating, A/C, side windows, radio and other functions. A touch keyboard is built right into the computer screen. To touch it accurately, you have to look at it carefully -- which is hard to do when you are trying to drive carefully.
Why are auto makers using touchscreens?
The auto makers are trying to find ways to build ever more functions into the limited space that’s available on a dashboard or centre console. Touch screens are an impressive technology; they look terrific and can display a massive amount of information. But they shouldn’t be the only controls on a dash.
When you're driving, however, you're supposed to be looking through the front window, operating most of the controls with only a quick glance. But with controls shifted to the touch screen, you have to take your eyes off the road to look at the screen.
Touch screens, unlike knobs with various shapes, don't allow that kind of “eyes on the road” operation. Small buttons on smooth glass surfaces demand your visual attention, and that could cause an accident.