The Ultimate Challenge of User Interface Design: Engagement vs. Safety
While traditional UX design principles, perfectly known from mobile apps and web design, aim to keep users engaged, the automotive interface must achieve the opposite—keeping drivers focused on the road.
This calls for understanding user behavior, ergonomics, and how drivers process information while driving.
Car UI components and interface elements need to be transparent and minimalist, with large text, switches, and buttons, enabling users to interact without diverting their gaze from the road.
As designers, we must also consider the driver's reach, sight lines, or nuances like differences between left and right-handed drivers.
All these factors can affect the safety of driving.
Take Volvo's XC90 interface as an excellent example of safety-focused design. The user interface minimizes distractions and facilitates driver concentration on the road, thanks to large, clear icons, intuitive menus, and controls that you can operate without taking your hands off the wheel.
On the other hand, despite many appreciating Tesla's modern and minimalist design in some models, numerous functions, even as critical as adjusting side mirrors, are controlled through a large touchscreen, demanding more attention and time from the driver than traditional physical switches.