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In this study, the obstacle negotiation behavior of novice drivers is investigated under the influence of alcohol. Following results are obtained that the fixation durations for the intoxicated subjects increased in proportion to the blood alcohol concentration levels and the subjects tended to fix intensively on the specific objects for negotiation cues. All subjects exhibited the unusual saccadic movements at the intoxicated conditions.

In this study, the novice driver behavior involved in traffic conflicts is investigated in order to obtain the cues of driver education program for avoiding traffic accidents. Following results are obtained that when the novice drivers encounter the oncoming vehicles, they fixate the vehicles at higher rate than the conflict objects and induce the traffic conflicts. In case of no oncoming vehicles, they also induce the conflicts because their strategies of visual search are critically concerned with the vehicle's direction of travel. They cause other traffic conflicts because it is difficult for them to maintain their vehicle on the correct lane position.

A new and simple technique of simultaneous measurements was developed to investigate changes in drivers’ eye fixations. Using an eye marker system and reference targets mounted on the front bumper of a vehicle, the visual behavior of novice drivers was compared with that of experienced drivers to find visual cues of skillful handling. It was found that the increase in horizontal angular displacement of fixations is approximately linear with the increase in the head displacement. Coefficient of determination for the novice groups is smaller than that for the experienced groups. Vertical angular displacement of fixations was almost the same for both the novice and experienced drivers, but head displacement for the novice drivers was the head-up type and that of the experienced drivers was the general or direct type.

This study investigates the drivers' visual behavior that occurs under conditions of obstacle avoidance with normal and restricted viewing. In the normal viewing, the experienced drivers concentrated on the visual objectives for obstacle avoidance, while the novice drivers sampled the direction of travel quite frequently. In the restricted viewing, the male novice drivers under 20 initiated the compensating visual behavior, but the female novice drivers over 30 displayed the same or a regressive tendency compared with normal viewing. The experienced drivers scanned the obstructions closer in front of the vehicle than the novice drivers in order to increase their intake of visual information.

This study investigates the driver/vehicle responses as affected by oncoming vehicles and obstructions. The results showed that in most cases neither the novice drivers nor the experienced ones fixated the oncoming vehicles, but that the drivers anticipated the roadway ahead at great distances, and monitored the oncoming vehicles with peripheral vision. There were no significant differences in the vehicle lateral displacement for the avoidance behavior between the novice and experienced drivers. However, the fixation time for the obstructions was shorter and the completion time of fixations was earlier for the novice drivers as compared to those for the experienced drivers. The strategies of visual search for the novice drivers were critically concerned with the vehicle's direction of travel.