Colloquium announcement

Faculty of Engineering Technology

Department Design, Production and Management
Master programme Industrial Design Engineering

As part of his / her masterassignment

Mireille Weghorst

will hold a speech entitled:

Development of a head-up display for secondary tasks used during automated driving

Date10-10-2017
Time15:00
RoomRavelijn 4237

Summary

With self-driving vehicles currently available to the general public, drivers remain ultimately responsible for the actions of the car. The driver needs to keep monitoring the environment, in case of a take-over event. Unfortunately, constantly monitoring a road is a very monotonous task, that will invite the driver to do other tasks instead. Such as sending an email, reading a book or sending text messages. This will cause him or her to lose the situational awareness needed when a take-over is required.

Instead of finding a way to keep the driver from performing these secondary tasks, the aim of this project is to research the possibility of using a secondary task display that keeps the driver situational aware while he is performing non-driving tasks in a self-driving car. According to literature a secondary display should be placed as close as possible to the primary visual area, to make the switch between primary and secondary information as easy as possible. Based on this it was decided to offer secondary tasks through a head up display (HUD). A HUD reflects information in the front window of the car, making it appear as if the information is projected on the road. This allows the driver to access his secondary tasks, while monitoring the environment around and through the interface, diminishing the loss of situational awareness.

Two experiments were executed, in order to find out if a head-up display allows for more situational awareness than a traditional secondary task display (like a display in the center stack of the dashboard). The first experiment focused on the capability of the driver to perceive and comprehend the situation on the road. It indicated that users of a HUD concept have more situational awareness than users of a side display. The second experiment the HUD concept was tested based on an additional level of situational awareness, i.e.: How well are the participants able to project their knowledge about the driving situation back into the world? The results of this experiment indicated that the participants who used the HUD concept reacted faster on average, and that it could be beneficial to show extra driving information on the head up display.

Based on the results of those two experiments a final iteration of the head-up display was created. On high-speed roads, this display would offer both secondary tasks and primary driving information, such as speed and navigation. Whenever a critical situation occurs, the driver will receive a signal, and the display will either become less visible or turn off completely, depending on the severity of the situation. At lower speeds it would only show the primary information.