Evaluation of Human Machine Interface for Vehicle – infrastructure Cooperative Driver Assistance

Abstract

In this study, we assume a mixed environment of automatic level 4 vehicles and automatic level 2 driver assistance vehicles. Some HMIs, human-machine interface was proposed, and DS experiments were conducted to evaluate the effectiveness of communicating free space information that means there is no obstacle for Level 4 automatic driving obtained from the infrastructure to driver assistance vehicles. The results showed that the direct transmission of the information that there was no oncoming vehicle reduced the subjective load and the timing of right turn became faster, but it also induced accidents in some situations and the driver did not check the safety of the vehicle. When information about the presence of oncoming traffic or information that assists the driver's decision to turn right is communicated, accidents can be prevented, and the driver can check for safety in the same way as when driving manually without overconfidence in the system.