Human-Machine Interaction

Design of the in-cabin interface: the displays, warnings, controls, and feedback channels through which driver and vehicle exchange information.

What's here. Modality-level interface work — hud ar windshield, haptic feedback, auditory warnings, voice interaction, multimodal feedback and feedback modes — alongside control interfaces, display design and warning design. Studies here manipulate how a signal is presented (channel, timing, urgency mapping, layout, control mapping) rather than which product delivered it or what state the driver was in.

What isn't here.

• external HMI that signals intent to pedestrians and other road users — Vehicle Automation & ADAS. Everything on this shelf faces inward, toward the driver. Interfaces mounted on the outside of the vehicle to communicate with people around it are catalogued with the automation work, and the pedestrian side of that exchange sits in vulnerable_road_users.
• auditory distraction and the attentional cost of sound — Driver Distraction. auditory_warnings here is about designing the alert. The similarly named auditory subcategory under Driver Distraction treats sound as a competing task or a load on attention, which is the more common reason to search for "auditory" plus "driving".
• work tied to a specific device or product class — In-Vehicle Technology. display_design and voice_interaction here treat the presentation channel generically. Studies of a named system — infotainment head unit, navigation system, phone integration, voice assistant — are shelved as In-Vehicle Technology, the strongest co-occurring neighbour of this category.