Today's KNOWLEDGE Share
Despite having worked on automotive HMI as a product designer, I prefer physical controls in cars over digital infotainment systems. Sometimes it feels like manufacturers are designing for iPad kids and tech enthusiasts instead of regular A-to-B drivers.
Touchscreen car controls are 2-4 times slower than physical buttons.
Touchscreens increase reaction times +30-57%. Legally drunk drivers: reaction time +12%. Car's touchscreen impairs more than a couple of beers.
Physical controls:
- One motion: turn knob left/right
- Works by feel without looking
- Instant response
- Same location every time
- Works with gloves
- Muscle memory kicks in
- Tactile feedback confirms action
Touchscreen controls:
- Multiple taps through menus
- Requires visual attention to locate
- Lag between tap and response
- Interface changes with software updates
- Fails with gloves/wet fingers
- Must relearn after updates
- No confirmation until you look at display (is haptic feedback is enough?)
VW: "We will never make this mistake anymore. It's a car, not a phone."
The best interface is the one you never have to think about. Especially when you're driving the highway at 100+ km/h.
source : Alex Galagan
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