Considerations on a Feeling of Troublesomeness Regarding Automotive Head-Up Displays During Driving 970229

The authors have carried out two types of tests regarding head-up displays (HUDs) for the purpose of determining the relationship between display position and a feeling of troublesomeness for the driver.
The first test was a basic experiment to evaluate how troublesome the HUDs were to an observer sitting in a chair outdoors. The collected data was used as the basis for carrying out approximation by means of two-dimensional normal distribution.
In the second test, the observer was actually in a car and a mock-up HUD making use of clear film was used to carry out the experiment in investigating how the feeling of troublesomeness changed depending on whether the vehicle was in a stop state or in a moving state. Compared to a stop state, the results in a driving state showed a shift toward the left side for the distribution of a feeling of troublesomeness. The reason is probably because the distribution of the line of vision of the driver moves toward the left when driving in Japan.


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